Abstract: The present disclosure includes a method of assembling a plurality of rotor cores for an electric converter. The method includes providing a core robotic system employing force control feedback and an insert assembly robotic (IAR) system; placing a rotor core of the plurality of rotor cores on a mandrel by the core robotic system employing force control feedback, wherein each rotor core from the plurality of rotor cores includes a plurality of cavities; and placing a plurality of magnetizable inserts into the plurality of cavities in the rotor core by the insert assembly robotic (IAR) system employing force control feedback.

Abstract: The present disclosure is generally directed toward a method of assembling a plurality of rotor cores for an electric converter. The method includes placing, by a core robotic system employing force control feedback, a rotor core on a mandrel, and for each of the plurality of rotor cores, placing, a plurality of magnetizable inserts into a plurality of cavities in the rotor core by an insert assembly robotic (IAR) system employing force control feedback.

Abstract: A rotor assembly system includes a central robotic system, which itself includes a conveyor platform and a multi-axial central robot arranged on the conveyor platform. The multi-axial central robot is configured to perform a set of manufacturing processes from among a plurality of rotor manufacturing processes related to at least one rotor component. The conveyor platform is operable to move the multi-axial central robot within the manufacturing cell to transfer the at least one rotor component between one or more rotor manufacturing processes from among the plurality of rotor manufacturing processes.

Abstract: A rotor assembly system for a manufacturing cell includes a central robotic system comprising a multi-axial central robot and a conveyor platform and one or more multi-axial auxiliary robotic systems secured at one or more locations within the cell. The conveyor platform is operable to move the central robot within the cell. The central robotic system and the one or more auxiliary robotic systems are configured to perform a plurality of rotor manufacturing processes on at least one rotor component in coordination with one another, and the central robotic system is configured to transfer the at least one rotor component between one or more rotor manufacturing processes of the plurality of rotor manufacturing processes.

Abstract: A rotor assembly system for a manufacturing cell includes a central robotic system comprising a multi-axial central robot and a conveyor platform and one or more multi-axial auxiliary robotic systems secured at one or more locations within the cell. The conveyor platform is operable to move the central robot within the cell. The central robotic system and the one or more auxiliary robotic systems are configured to perform a plurality of rotor manufacturing processes on at least one rotor component in coordination with one another, and the central robotic system is configured to transfer the at least one rotor component between one or more rotor manufacturing processes of the plurality of rotor manufacturing processes.

Abstract: An end of arm tool (EOAT) for use with a robotic end effector includes radially opposed gripper fingers secured to a distal end portion of the robotic end effector, each radially opposed gripper finger having a recess with a first sidewall and a second sidewall oriented at an acute angle relative to the first sidewall. The radially opposed gripper fingers are configured to translate radially to grip a part within the recesses and to release the part for placement in an assembly.

Abstract: A method of securing magnetizable inserts within cores of an electric converter includes placing an assembly of rotor cores in a transfer molding press, the magnetizable inserts being disposed within cavities of the rotor cores and the cavities of the rotor cores being in fluid communication, placing a polymer preform proximate a central portion of the assembly of rotor cores, displacing the polymer preform such that the polymer preform changes state and flows radially and then axially through each of the cavities of the rotor cores, removing the assembly of rotor cores from the transfer molding press, and removing polymer waste from the assembly of rotor cores.

Abstract: The present disclosure is generally directed toward a method of assembling a plurality of rotor cores for an electric converter. The method includes placing, by a core robotic system employing force control feedback, a rotor core on a mandrel, and for each of the plurality of rotor cores, placing, a plurality of magnetizable inserts into a plurality of cavities in the rotor core by an insert assembly robotic (IAR) system employing force control feedback.

Abstract: Systems and methods for fault detection and protection in electric power systems that evaluates electromagnetic transients caused by faults. A fault can be detected using sampled data from a first monitored point in the power system. Detection of fault transients and associated characteristics, including transient direction, can also be extracted through evaluation of sample data from other monitored points in the power system. A monitoring device can evaluate whether to trip a switching device in response to the detection of the fault and based on confirmation of an indication of detection of fault transients at the other monitored points of the power system. The determination of whether to trip or activate the switching device can also be based on other factors, including the timing of receipt of an indication of the detection of the fault transients and/or an evaluation of the characteristics of the detected transients.

Abstract: Systems and methods for identifying faulted segment(s) in a multiphase power network may include receiving a current measurement that was measured during a fault, obtaining a set of equivalent sequence impedances for the segments, building a set of sequence bus impedance matrices, selecting a segment, calculating coefficients for the segment based on the set of equivalent sequence impedances for the segment and the sequence bus impedance matrices, calculating an estimated per unit fault distance for the segment based at least partially on the current measurement and the coefficients, identifying the segment as a potentially faulted segment if the estimated fault distance for the segment is between about zero and about one, and repeating for each of the segments the calculating coefficients, calculating an estimated per unit fault distance, and identifying as a potentially faulted segment if the estimated fault distance for the segment is between about zero and about one.

Abstract: Methods and systems for secured control of circuit breakers in an electric power substation against undesired direct operation. Consequences of a malicious action are prevented or mitigated using a validation approach that either blocks the command or ensures a negligible effect on system operation. An example method, suitable for implementation in a monitoring device in an electric power substation, includes receiving a command to open or close a circuit breaker. In response, one or more state parameters for the electric power network that comprises the substation are then predicted, the predicted state parameters reflecting an operating state for the network under the assumption that the received command is executed. The method further comprises comparing the predicted one or more state parameters to corresponding operational limits. Execution of the command is then blocked, in response to determining that one or more of the predicted state parameters violate the corresponding operational limits.

Abstract: Systems and methods for power line event zone identification are disclosed. Power line event zone identification may include receiving measured data corresponding to a signal measured on a power line, determining from the measured data that a power line event has occurred, and identifying a probable one of at least two monitoring zones in which the power line event occurred. The at least two monitoring zones may be defined for an Intelligent Electronic Device (IED). The systems may include an IED connected to the power line and a processor linked to the IED.

Abstract: Unique systems, methods, techniques and apparatuses of a substation phasor data concentrator (ssPDC) is disclosed herein. One exemplary embodiment is a method for operating an electrical substation including a merging unit (MU), a phasor measurement unit (PMU), and a substation phasor data concentrator (ssPDC).

Abstract: A real time thermal monitoring and prediction system (TMPS) is provided for use in monitoring and operating a transformer. The TMPS may be used to estimate a maximum loading level for the transformer over a future time period using a dynamic thermal model for the transformer and ambient temperature forecasts. The transformer may be loaded to its maximum loading level during power congestion or a service restoration process.

Abstract: A system and method for configuring devices on a device network in communication with a router on a control network. An unconfigured device installed on the network receives a poll at a predetermined address from a router. The router receives a response to the poll from the unconfigured device, and requests identification of devices having a range of device object IDs and stores the MAC addresses of responding devices and the device object IDs. The unconfigured device is configured to have the proposed MAC address and device object ID.

Abstract: The present invention comprises an apparatus and method for detecting a loss of oil from an oil-immersed transformer, based on fitting a transformer top-oil temperature model to online measurements in an iterative optimization process that yields fitted values for a first model parameter representing the top-oil temperature rise over ambient temperature and a second model parameter representing the oil time constant. Among the several advantages seen in the contemplated apparatus and method is the reduction in required instrumentation, whereby transformer oil leaks are indirectly detected without requiring pressure sensors or mechanical floats, although the presence of such sensors is not excluded by the teachings herein.

Abstract: An example method for detecting and mitigating attacks on electric power substations comprises detecting a command to open or close a circuit breaker in the electric power substation. A modified extended substation model for the electric power substation is generated, based on the detected command and based on measurements in substation, where the modified extended substation model is a power flow model for the substation and for one or more directly connected neighboring substations. A power flow analysis is performed, using the modified extended substation model, to generate a predicted voltage for each of a plurality of nodes in the substation and in the one or more directly connected neighboring substations. Each predicted voltage is compared to a corresponding allowable voltage range, and execution of the command is blocked in response to determining that one or more of the voltages is outside the corresponding allowable voltage range.

Abstract: A piezo sensor having an inner conductor having an inner conductor segment, where the inner conductor segment forms a tubular sidewall having a break, and also having an interior surface and an exterior surface; a plurality of individually polarized piezoelectric members, each having an inner face and an outer face, and each inner face contacting the first conductor exterior surface, each piezoelectric member being adjacent to another on the exterior face of the inner conductor, forming sets of adjacent faces; an outer conductor having an outer conductor segment forming a tubular sidewall having a break, the outer conductor having an interior surface and an exterior surface, where the interior surface contacts the outer face of the piezoelectric members; and where the break of the outer conductor segment is alignable with adjacent faces of two of the plurality of piezoelectric members, and further being alignable with the break of the inner conductor segment.

Abstract: A method and system for applying a liner material to a contoured surface, such as an exposed rock face in an underground hard rock mine, is disclosed. Locations of a plurality of spatially distributed surface grid points on the contoured surface may be detected so as to generate a representative topographical profile of the contoured surface. Based on the plurality of surface grid points, a spray path for a liner application device configured to emit a spray of the liner material may be determined. In some cases, the spray path may have a trajectory that follows the topographical profile of the contoured surface offset therefrom within a spray range of the liner application device. Liner material may then be sprayed onto the contoured surface while controlling the liner application device to undertake at least one pass of the spray path.

Abstract: A cavity-enhanced absorption spectroscopy instrument has an optical cavity with two or more cavity mirrors, one mirror of which having a hole or other aperture for injecting a light beam, and the same or another mirror of which being partially transmissive to allow exit of light to a detector. A spherical-spherical configuration with at least one astigmatic mirror or a spherical-cylindrical configuration where the spherical mirror could also be astigmatic prevents a reentrant condition wherein the injected beam would prematurely exit the cavity through the aperture. This combination substantially increases the number of passes of the injected beam through a sample volume for sensitive detection of chemical species even in less than ideal conditions including low power laser or LED sources, poor mirror reflectivity or detector noise at the wavelengths of interest, or cavity alignment issues such as vibration or temperature and pressure changes.