Abstract: An additive manufacturing apparatus includes a process chamber having a length, a support extending along the length of the process chamber, a printing assembly, a vision system configured to image a dispensed binder pattern, and an electronic control unit communicatively coupled to the printing assembly, the first actuator, and the vision system. The electronic control unit is configured to cause the printing assembly to traverse the build zone in a forward or reverse direction while dispensing binder according to a programmed deposition pattern, receive image data from the vision system of the dispensed binder pattern resulting from the programmed deposition pattern, analyze the image data to determine whether there is an anomaly in the dispensed binder pattern, and in response to determining the anomaly in the dispensed binder pattern, adjust the programmed deposition pattern for a subsequent traversal of the printing assembly over the build zone to address the anomaly.

Abstract: A printing assembly (150) is provided including a manifold assembly including an inlet manifold (210) including an inlet reservoir (238) and an inlet port (266), and an outlet manifold (212) including an outlet reservoir (286) and an outlet port (310). A valve is provided at each of the inlet port of the inlet manifold and at the outlet port of the outlet manifold. The valve is operable between an open position for permitting the flow of material through the port and a closed position for preventing the flow of material through the port. The printing head includes a housing and print heads provided within the housing and in fluid communication with the inlet reservoir via the inlet port and the outlet reservoir via the outlet port. The valves are independently operable to control a flow of material from the inlet reservoir to the print heads, and from the print heads to the outlet reservoir, respectively.

Abstract: An electrical assembly includes a converter-based electrical device and a transformer for connecting the converter-based electrical device to an AC electrical network, a first transformer side of the transformer connected to the converter-based electrical device, a second transformer side of the transformer for connection to the AC electrical network, the transformer including a number of taps, the transformer including a tap changer operable to selectively connect to the or each tap to modify a turn ratio of the transformer. The transformer includes a controller configured to selectively operate the tap changer in an AC voltage modification mode, responsive to an abnormal operating state of the electrical assembly, to modify the turn ratio of the transformer so as to modify an AC voltage at the first transformer side.

Abstract: An apparatus may include a processor, memory modules, and machine-readable instructions stored in the memory modules. When executed by the processor, the instructions may cause the apparatus to receive image data of one or more laser strikes on a build plane, the image data indicating positions of a first set of fiducial strikes made by a first laser on the build plane and positions of a second set of fiducial strikes made by a second laser on the build plane, determine relative positions of the first set of fiducial strikes and the second set of fiducial strikes with respect to each other from the received image data, compare the determined relative positions of the first and second sets of fiducial strikes with respect to each other to expected relative positions of the first and second sets of fiducial strikes with respect to each other, and determine whether the first laser and the second laser are misaligned with respect to each other based on the comparison.

Abstract: A method for providing build material to an additive manufacturing system (100) includes moving the build material (10) from a dosing hopper (240) to an interior space defined by one or more supply sidewalls of a supply receptacle (110) and a piston (130) positioned within the supply receptacle (110), and moving the piston toward a working surface (102) of the additive manufacturing system, thereby moving build material within the interior space to the working surface.

Abstract: A system includes a supply receptacle defining one or more supply receptacle sidewalls and an upwardly-facing receptacle opening, a piston positioned at least partially within the supply receptacle, where the piston, the upwardly-facing receptacle opening, and the one or more supply receptacle sidewalls at least partially define an interior space of the supply receptacle, and the piston is positionable between an extended position, in which the interior space has an extended volume, and a retracted position, in which the interior space has a retracted volume that is greater than the extended volume, and a dosing hopper positioned above and in selective communication with the interior space of the supply receptacle, where the dosing hopper is structurally configured to deliver build material to the interior space.

Abstract: The present application concerns a high-voltage circuit breaker filled with insulating gas having a main axis A, including arcing contacts and an insulating nozzle, wherein an insulating gas flowing from a storage chamber and heated by an electric arc between the two arcing contacts is partitioned into a first gas flow and a second gas flow conducted outside of the insulating nozzle from opposite directions toward a main gas chamber, wherein the first gas flow flows through a first intermediary gas chamber and the second gas flow flows through a second intermediary gas chamber and is partitioned in a first portion directed to the main gas chamber and a second portion directed to an exhaust gas chamber, characterized in that the first portion of the second gas flow is smaller than the second portion of the second gas flow.

Abstract: This disclosure is directed to seal assemblies for a turbomachine. The seal assemblies include stationary and rotating components and at least one interface between the stationary and rotating components. The seal assembly further includes a self-lubricating lattice element made of carbon or a carbon-based material. The self-lubricating lattice element may have a porous and compressible microstructure capable of retaining a liquid substance. During engine operation, the self-lubricating lattice element can compress and expel some portion of the liquid substance to form a liquid-containing layer between the rotating and stationary components of the seal assembly. Also described herein are self-lubricating wear sleeves for use in other portions of the turbomachine.

Abstract: An incubator includes a sensor configured to measure a temperature of a baby. The incubator also includes a temperature control device configured to modify a temperature of an environment. The incubator also includes a computing system configured to obtain a first desired environmental temperature (DET) for the baby. The computing system is also configured to obtain a DET zone for the baby based at least partially upon the first DET. The computing system is also configured to control the temperature of the environment with the temperature control device during a first period time based at least partially upon the first DET, the DET zone, or both. The computing system is also configured to compare a second DET to the first DET, the DET zone, or both. The computing system is also configured to trigger an alarm in response to the comparison.

Abstract: Devices, systems, methods, and kits of parts for monitoring operation of an electron beam additive manufacturing systems are disclosed. A monitoring system includes one or more measuring devices positioned on the at least one wall in the interior of a build chamber of the additive manufacturing system. Each one of the one or more measuring devices includes a piezoelectric crystal. The monitoring system further includes an analysis component communicatively coupled to the one or more measuring devices. The analysis component is programmed to receive information pertaining to a frequency of oscillation of the piezoelectric crystal. A collection of material on the one or more measuring devices during formation of an article within the build chamber causes a change to the frequency of oscillation of the piezoelectric crystal that is detectable by the analysis component and usable to determine a potential build anomaly of the article.

Abstract: The present application concerns a circuit breaker including a movable contact, a driving rod slidably mounted in the circuit breaker, a linkage mechanism for driving the movable contact, a pivoted driving fork rotatably mounted in the circuit breaker which cooperates with the driving rod through the cooperation of a primary pin provided on the driving rod and a primary slot provided on the driving fork, a driven lever connecting the driving fork to the movable contact, and wherein the driving rod supports a secondary pin which cooperates with a secondary slot of the driving fork when the driving rod in a position between a predetermined position and an extreme opened position of the circuit breaker.

Abstract: This disclosure is directed to seal assemblies for a turbomachine. The seal assemblies include stationary and rotating components and at least one interface between the stationary and rotating components. In some examples, seal assembly includes an oleophilic coating disposed between the stationary and rotating components. The seal assembly may include a surface texture to enhance the oleophilicity of the surface coating disposed between the stationary and rotating components. In other examples, the seal assembly includes an oleophobic coating disposed between the stationary and rotating components. The seal assembly may include a surface texture to enhance the oleophobicity of the surface coating. During operation, the oleophilic seal assembly features retain lubricant between the stationary and rotating components and the oleophobic seal assembly features inhibit the escape of lubricant from the contact regions between the stationary and rotating components.

Abstract: A system (100) includes a build area positioned along a working surface (102), a supply receptacle (110) spaced apart from the build area and defining one or more supply receptacle sidewalls and an upwardly-facing receptacle opening (114), a dosing hopper (240) positioned above and in selective communication with the supply receptacle, where the dosing hopper is structurally configured to deliver build material to an interior space (116), and a conveyance hopper (260) in communication with the dosing hopper (240).

Abstract: Provided is a synchronous electrical machine that includes a stator and a wounded rotor, the stator having a plurality of phases, each phase comprising coils connected together and magnetic stator poles cores fixed on a stator frame and evenly distributed along a stator diameter, each coil being wounded around a different magnetic stator pole core to form a magnetic stator pole, each phase comprising a same number of magnetic stator poles, the magnetic stator poles of each phase being disposed in the stator frame to form a concentric winding stator. The rotor includes a plurality of magnetic rotor pole cores evenly distributed around the rotor and rotor coils, each rotor coil being wounded around a different magnetic rotor pole core to form a magnetic rotor pole.

Abstract: A generator assembly includes a stator assembly coupled to an engine stator component of a propulsion engine, the stator assembly including: a stator support structure fixedly attached to the engine stator component; a stator disposed on a supporting surface of the stator support; a manifold coupled to the stator support, the manifold defining a connection volume and including at least one coolant opening at a connection end of the manifold; and an electrical connector extending between the stator and a connection device disposed on the connection end. The generator assembly also includes a rotor assembly comprising a rotor support structure connected to a shaft of the propulsion engine and a rotor attached to the rotor support structure, wherein the rotor rotates in conjunction with the shaft to generate a power signal that travels through the electrical connector to the connection device.

Abstract: A dispatch advisor for operating a power plant having at least one gas turbine with flexibility is described. The dispatch advisor can generate a representation of a flexible base load map for operating the power plant. The representation can include an aggregation of a primary base load operating space and an expanded portion of the base load operating space. The representation offers a range of operating values for operational parameters of the power plant during base load at various base load settings at predetermined ambient conditions and corresponding power output and efficiency values that are attained while operating the power plant at the range of operating values. This offers an operator of the power plant with flexibility in controlling the plant during base load.

Abstract: The present disclosure relates to a phase shifting transformer. The phase shifting transformer includes two exciting windings sharing the same three double taped coils, a first excited winding having three connected coils, for a phase shift regulation, a second excited winding comprising three connected coils, for a voltage regulation, each of the two exciting windings regulating the voltage of one coil of the second excited winding, and regulating the voltage level of one coil of the first excited winding.

Abstract: There is provided a switching valve for a voltage source converter, the switching valve including a number of modules, each module including at least one switching element and at least one energy storage device, each switching element and each energy storage device arranged to be combinable to selectively provide a voltage source, the switching valve including a controller programmed to selectively control the switching of the switching elements to select zero, one or more of the modules to contribute a or a respective voltage to a switching valve voltage. The controller is programmed to selectively control the switching of the switching elements to carry out a switching operation and to apply a time delay if a charging current is flowing through the modules and/or apply a time delay to a start time of the switching operation if a discharging current is flowing through the modules.

Abstract: Provided is a system communicatively coupled to a network including a plurality of aviation assets. The system includes a processor; a memory including instructions which when executed by the processor cause the processor to perform operations including detecting a change in a state of the network, the change being characterized by comparing a previous state of the network with a current state of the network, and the change being associated with one or more assets of the plurality of assets. The operations also include fetching configuration data and test data from a plurality of sources, the fetching being responsive to detecting the change; generating, based on the change, the configuration data, the test data, one or more verification scripts; and executing a specified test utilizing the one or more verification scripts, the specified test being configured to analyze one or more assets of the plurality of aviation assets.

Abstract: A voltage source converter includes first and second DC terminals which have at least one converter limb extending therebetween. Each limb portion includes a chain-link converter that extends between an associated AC terminal and a corresponding one of the first or the second DC terminal. Each chain-link converter also includes a chain-link converter controller which is programmed to control a series of connected chain-link modules. The voltage source converter additionally includes a voltage source converter controller which is arranged in operative communication with each chain-link converter controller to coordinate operation of the chain-link converters. Each chain-link converter controller is further programmed to reconstruct from a received modulation index demand the chain-link converter voltage reference, which the chain-link converter it is controlling is required to produce, by multiplying the received modulation index demand by a total voltage sum established at a first time instant.

Abstract: A DC energy storage system may include first and second DC terminals for connection to a DC link, a DC energy storage converter including a number of modules connected in series between the first and second DC terminals, each module including at least one switching element and at least one energy storage device, the or each switching element and the or each energy storage device in each module being combinable to selectively provide a voltage source, and at least one circuit interruption device connected in series with the DC energy storage converter between the first and second DC terminals, the or each circuit interruption device operable to electrically separate the DC energy storage converter from the DC link.

Abstract: A system for monitoring health during a water birth includes a first health sensor having one or more transducers configured to emit, receive, or both emit and receive monitoring signals through water in a tank. When received, at least some of the monitoring signals represent a health of a mother, a fetus, or both at least partially in the water. The system includes a health monitoring device in communication with the first health sensor. The health monitoring device is configured to receive communication signals from the first health sensor, the communication signals including data representing at least some of the monitoring signals.

Abstract: A system for monitoring health during a water birth includes a health sensor configured to be coupled to a mother. The health sensor includes a first sensor configured to measure one or more health parameters of a mother, a fetus within the mother or both, a second sensor configured to generate a submerged signal representing whether the health sensor is at least partially submerged in water, and a transmitter configured to transmit communication signals representing data collected by the first sensor. One or more parameters of the communication signals change depending on whether the submerged signal represents that the health sensor is at least partially submerged.

Abstract: A DC energy storage system may include first and second DC terminals for connection to a DC link, a DC energy storage converter including a number of modules connected in series between the first and second DC terminals, each module including at least one switching element and at least one battery, the or each switching element and the or each battery in each module being combinable to selectively provide a voltage source, and at least one fire-resistant protective barrier arranged to separate the modules into converter sections, each converter section including at least one module of the number of modules.

Abstract: There is provided an electrical assembly including at least one power converter and at least one dynamic reactive power source, the or each power converter and the or each dynamic reactive power source connectable to an AC network, the or each power converter and the or each dynamic reactive power source operable to exchange reactive power with the AC network, wherein the or each dynamic reactive power source is configured to selectively adjust its exchange of reactive power with the AC network in response to a characteristic of a reactive current demand of the or each power converter crossing a or a respective reactive current characteristic threshold.

Abstract: There are provided systems and methods for prognostic analytics of an asset. For example, there is provided a system for monitoring a reliability of a component of an asset. The system includes a processor and a memory comprising instructions that, when executed by the processor, cause it to perform certain operations. These operations may include receiving input data, which can include performance data relating to the component, configuration data relating to the component, and statistical data relating to a plurality of assets. The operations can further include providing a pre-emptive recommendation for the component based on the input data.

Abstract: Air-core reactors for use with power transmission systems are disclosed. An example air-core reactor may include a main coil and an auxiliary coil. The main coil may include a first solenoid having a first diameter and a second solenoid having a second diameter, wherein the first diameter and the second diameter are different. The auxiliary coil may include a third solenoid. The first solenoid and the second solenoid may be arranged concentrically. The auxiliary coil may also be magnetically coupled to the main coil, and the auxiliary coil may be arranged concentric to the main coil.

Abstract: A chain-link converter includes a number of series-connected chain-link modules. Each chain-link module has a module controller that is programmed to control operation of the corresponding chain-link module to selectively provide a voltage source, whereby the chain-link converter is able to provide a stepped variable voltage source. The chain-link converter also includes a chain-link converter controller that is arranged in communication with each module controller, and which is programmed to, in-use, communicate to a nmber of the module controllers a measured converter current (IDC) that is flowing through the chain-link converter. The module controllers that receive the measured converter current (IDC) is each further programmed, in-use, to combine the measured converter current (IDC) with a measured rate of change of current (IAC) flowing through the corresponding chain-link module, to establish an instantaneous module current (Ii) that is flowing through the corresponding chain-link module.

Abstract: A bipole power transmission scheme typically includes a first converter station that is positioned remote from a second converter station, along with first and second transmission conduits which interconnect the first and second converter stations to permit the transmission of power between the first and second converter stations. The first converter station has first and second power converters, with the first power converter including a first DC terminal that is connected with the first transmission conduit, at least one AC terminal which is connected with a first AC network, and a second DC terminal that is interconnected with a third DC terminal of the second power converter by a first interconnection which defines a first neutral area. The second power converter additionally includes a fourth DC terminal that is connected with the second transmission conduit and at least one AC terminal which is connected with a second AC network.

Abstract: A superconducting magnet system having two-stage quenching. A primary coil assembly includes a coil section configured to be superconducting when conducting current below a first critical current. An EMI shielding coil assembly includes a coil section configured to be superconducting when conducting current below a second critical current, which is electrically coupled to a variable resistor configured to be superconducting when conducting current below a third critical current and to be non-superconducting when conducting current at or above the third critical current that is less than both the first and second critical currents. Generating a magnetic flux within the EMI shielding coil assembly causes the current conducted through the variable resistor to exceed the third critical current, quenching the variable resistor and generating heat. The EMI shielding coil assembly is disposed such that the heat from the variable resistor quenches the primary coil assembly.

Abstract: Provided is a modular multilevel converter and a method for synchronizing outputs of sub-modules of the converter. The modular multilevel converter includes sub-modules connected in parallel, and each sub-module generates an output. The modular multilevel converter also includes a controller that is communicatively coupled to the sub-modules. The controller controls a flow of one or more synchronizing signals between the plurality of sub-modules, such that each sub-module receives the synchronizing signals in opposite directions simultaneously, thereby controlling a synchronization of the outputs generated by the sub-modules.

Abstract: The systems and methods described herein relate to a dome of a gas turbine assembly configured to suppress pressure pulsations. The systems and methods provide a dome having an aperture configured to surround an injector assembly of a combustor. The dome having a front panel extending radially from the aperture. The systems and methods couple a first cavity to the front panel. The first cavity includes a series of ducts. A first duct of the series of ducts is configured to receive airflow into the first cavity from a compressor and a second set of ducts of the series of ducts and a third duct of the series of ducts are configured to direct airflow to the combustor from the first cavity, wherein the third duct has a larger diameter than the second set of ducts.

Abstract: A controller, for a chain-link converter having a number of series-connected chain-link modules that are operable in combination to provide a stepped variable voltage source, is programmed to obtain for each chain-link module an indication of whether the current flow through the corresponding chain-link module is in a first flow direction or a second flow direction. The controller is additionally programmed to evaluate the number of indications in the first flow direction and the number of indications in the second flow direction, and thereafter to establish an overall current flow direction through the chain-link converter equal to the flow direction having the largest number of indications.

Abstract: A turbomachine engine can include a fan assembly, a vane assembly, a core engine, a gearbox, and an overall engine efficiency rating. The fan assembly can include a plurality of fan blades. The vane assembly can include a plurality of vanes, and the vanes can, in some instances, be disposed aft of the fan blades. The core engine can include a low-pressure turbine. The gearbox includes an input and an output. The input of the gearbox is coupled to the low-pressure turbine of the core engine and comprises a first rotational speed, the output of the gearbox is coupled to the fan assembly and has a second rotational speed, and a gear ratio of the first rotational speed to the second rotational speed is within a range of 2.0-4.0. The overall engine efficiency rating is greater than or equal to 0.35GR1.5 and less than or equal to 0.7GR1.5.

Abstract: A bipole power transmission network includes a first upstream power converter which has a first DC terminal that is connected with a first transmission conduit which extends, in-use, to a first downstream power converter. The first upstream power converter has a second DC terminal that is connected with a return conduit which extends, in-use, to the first downstream power converter and a second downstream power converter. The first upstream power converter has at least one first AC terminal electrically connected with a first AC power source. The bipole power transmission network includes a second upstream power converter which has a third DC terminal that is connected with the return conduit, and a fourth DC terminal which is connected with a second transmission conduit that extends, in-use, to the second downstream power converter, and at least one second AC terminal electrically connected with a second AC power source.

Abstract: A method comprises a server generating a server nonce and transmitting a server public key, a key signature and the server nonce to a device, the device verifying the server public key, signing the server nonce with a device private key, generating a device nonce, and transmitting the server nonce, the server nonce signature, a device public key, a device key signature, and the device nonce to the server, the server verifying the server nonce and the device public key, generating a session key, encrypting the session key with the device public key, signing the device nonce and the session key with a server private key, and transmitting the device nonce, the signed device nonce and session key, and the encrypted session key to the device, and the device verifying the device nonce, decrypting the encrypted session key with the device private key, and verifying the decrypted session key.

Abstract: A method for additively printing extension segments on workpieces using an additive manufacturing machine includes controlling, with a computing system, an operation of a print head of the machine such that a region of interest of a build plate of the machine is scanned with an electromagnetic radiation beam. Additionally, the method includes receiving, with the computing system, data associated with reflections of the beam off of the build plate as the region interest is scanned. Furthermore, the method includes receiving, with the computing system, data associated with a location of the beam relative to the build plate. Moreover, the method includes determining, with the computing system, a location of a workpiece interface based on the received data. In addition, the method includes controlling, with the computing system, the operation of the print head such that an extension segment is additively printed on the determined workpiece interface.

Abstract: A system and method for analyzing build files in an additive manufacturing process in order to predict defects in an additive part. The system and method further include the steps of reading an additive build file containing a set of scan paths of a three-dimensional (3D) object for a build, the set of scan paths comprising a plurality of points, creating a transfer function from parameters in the build file that corresponds to a local melt pool shape at each point of the plurality of points along the scan paths, and identifying potential defective portions of the additive part including at least one of pores, excessive melting, or surface finish based on the transfer function.

Abstract: A method to be performed by a processor includes determining whether an application software has called an application programming interface, upon determination that the application software has called the application programming interface, determining whether one or more floating-point errors are recorded in a floating-point status register, and upon determination that one or more floating-point errors are recorded in the floating-point status register, performing a predefined action for each type of floating-point error recorded in the floating-point status register.

Abstract: Systems and methods for power system switching element (PSSE) anomaly detection are disclosed. An example PSSE anomaly detection unit may include a power system switching element position estimator (PSSEPE) and a comparison unit. The PSSEPE may be configured to receive a set of measurements and a set of control commands associated with a PSSE, calculate an anomaly confidence score based on the set of measurements and the set of control commands, and estimate a calculated PSSE position based on the set of measurements and the set of control commands. The comparison unit may be configured to receive the calculated PSSE position from the PSSEPE, receive the set of measurements and the set of control commands from the PSSEPE, receive a reported PSSE position associated with the PSSE, and determine a PSSE anomaly decision based on a difference between the reported PSSE position and the calculated PSSE position.

Abstract: The present application concerns a transformer assembly. The transformer assembly includes a step-up transformer, a step-down transformer, and a phase shifting transformer having a source side and a load side connected, respectively, to the step-down transformer and the step-up transformer.

Abstract: Reconstructing a second component signal relating to a second component of a multi-component picture from a spatially corresponding portion of a reconstructed first component signal and a correction signal derived from a data stream for the second component promises increased coding efficiency over a broader range of multi-component picture content. By including the spatially corresponding portion of the reconstructed first component signal into the reconstruction of the second component signal, any remaining inter-component redundancies/correlations present such as still present despite a possibly a priori performed component space transformation, or present because of having been introduced by such a priori performed component space transformation, for example, may readily be removed by way of the inter-component redundancy/correlation reduction of the second component signal.

Abstract: A system includes a sensor comprising a sensor bonding layer disposed on a surface of the sensor, wherein the sensor bonding layer is a metallic alloy. An inlay includes a planar outer surface, wherein the inlay may be disposed on a curved surface of a structure. A structure bonding layer may be disposed on the planar outer surface of the inlay, wherein the structure bonding layer is a metallic alloy. The sensor bonding layer is coupled to the structure bonding layer via a metallic joint, and the sensor is configured to sense data of the structure through the metallic joint, the structure bonding layer, and the sensor bonding layer. The inlay comprises at least one of a modulus of elasticity, a shape, a thickness, and a size configured to reduce strain transmitted to the sensor.

Abstract: A portable, hand-held computer functions as an intermediary between a database server and individual aircraft when the aircraft cannot be connected to the database server. By virtue of being portable and being locally linked (over time) to different aircraft, the intermediary computing device can provide the data upload validation and auditing for accurate billing of database usage for a flight database provided from the server. This ensures that each aircraft which receives an uploaded database is entitled to receive the upload based on a paid license. As a result, billing by the database vendor is based on usage. Licensing and data authentication is mediated by the intermediary computing device.

Abstract: A gas turbine engine fuel supply system can include a fuel delivery system, a thermal management system, a fuel manifold, and one or more sensors that identify one or more fuel parameters. A fuel control system adjusts parameters of the fuel based on data received from the sensors.

Abstract: An idea used herein is to use the same function for the dependency of the context and the dependency of the symbolization parameter on previously coded/decoded transform coefficients. Using the same function–with varying function parameter–may even be used with respect to different transform block sizes and/or frequency portions of the transform blocks in case of the transform coefficients being spatially arranged in transform blocks. A further variant of this idea is to use the same function for the dependency of a symbolization parameter on previously coded/decoded transform coefficients for different sizes of the current transform coefficient’s transform block, different information component types of the current transform coefficient’s transform block and/or different frequency portions the current transform coefficient is located within the transform block.

Abstract: Soluble water scavenger molecules for use with dielectric fluids are disclosed. An example dielectric fluid-based composition for reducing water content in a dielectric fluid may include a water-scavenging agent disposed within a dielectric fluid. The example dielectric fluid-based composition may further include the water-scavenging agent being soluble in the dielectric fluid. The example dielectric fluid-based composition may further include the water-scavenging agent being configured to react with water molecules in the dielectric fluid. The example dielectric fluid-based composition may be disposed in an electrical equipment immersed in oil. The electrical equipment may further include at least one solid insulation in operational contact with the dielectric fluid.

Abstract: Provided is a hybrid modular multilevel converter (HMMC) based on a neutral point clamped (NPC) topology and having an ABC N-phase structure. The HMMC includes N pairs of identical upper and lower arms, each upper and lower arm being composed of X submodules and Y sets of switches. The switches within each set are cascaded and connected in series, each of the submodules is formed of full-bridge silicon (Si) insulated-gate bipolar transistor (IGBT) converters, and at least one of the set of switches is formed of IGBTs of opposite polarities.

Abstract: Provided is a hybrid modular multilevel converter (HMMC) based on a neutral point pilot (NPP) topology and having an ABC N-phase structure. The HMMC includes N pairs of identical upper and lower arms, each upper and lower arm being composed of X submodules and Y sets of switches. The switches within each set are cascaded and connected in series, each of the submodules is formed of full-bridge silicon (Si) insulated-gate bipolar transistor (IGBT) converters, and at least one of the set of switches is formed of IGBTs of opposite polarities.

Abstract: A method for forming a component includes estimating a dosing plan for powder of a powder bed fusion (PBF) system needed to form the component. The dosing plan includes powder dosing requirements needed per layer to form the component. The method includes providing the dosing plan to a controller of the PBF system. Further, the method includes regulating the powder being supplied to a build chamber of the PBF system from a supply chamber of the PBF system based on the dosing plan. In addition, the method includes additively manufacturing the component via the PBF system using the powder.