Abstract: A power conversion device is disclosed in which a grid following amplitude command value and a grid following phase command value are output in response to receiving a switching signal instructing switching from grid following control to grid forming control. The grid following amplitude command value indicates a target value of an amplitude computed by the grid following control. The grid following phase command value indicates a target value of a phase computed by the grid following control. When the grid following control is switched to the grid forming control, an initial value of the target value of the amplitude in the grid forming control to be the grid following amplitude command value is set, and an initial value of the target value of the phase in the grid forming control to be the grid following phase command value is set.

Abstract: A power conversion device includes a conversion circuit, a grid forming control circuit, a grid following control circuit, a modulation circuit, a switching circuit, a phase synchronization processing circuit, an initial value computing circuit, and a synchronization adjusting circuit. When a switching signal instructing switching from grid forming control to grid following control is received, the phase synchronization processing circuit computes a synchronous phase by phase synchronization processing for which an amplitude of a grid voltage is used as input. The initial value computing circuit computes an initial amplitude command value based on the amplitude of the grid voltage and the synchronous phase. The synchronization adjusting circuit sets the initial amplitude command value to be an initial value of a command value of an amplitude of an output voltage in the grid following control after switching from the grid forming control.

Abstract: An information processing apparatus, an information processing method, a program and a system capable of effectively changing a height at which an article is stored are provided. According to the embodiment, an information processing apparatus includes a first interface, a second interface, and a processor. The first interface acquires a retrieval order for picking articles from cases. The second interface is connected to a takeout device configured to swap the cases stored at different heights. The processor selects two of the cases stored at different heights based on the retrieval order and causes the takeout device to swap the selected two cases through the second interface.

Abstract: An electric power conversion device according to an embodiment includes: a converter circuit that converts direct current power to alternating current power; a circuit breaker one end of which is connectable to an external system and another end of which is connected to the converter circuit via a filter circuit; and an injector that, before injecting the circuit breaker during activation, sets the converter circuit to an operating state, determines whether a voltage at the one end and a voltage at the other end meet a synchronization condition, and injects the circuit breaker when the synchronization condition is met.

Abstract: A startup method and startup program for microgrid that enable to stably start up the microgrid without producing frequency fluctuation is provided. An embodiment of the present disclosure is a startup method for microgrid configured by a plurality of inverter power supplies independently sharing a load and divided into a master that starts up first and a slave that starts up secondly and later, the startup method comprising: a master initial startup step of initially starting up the master in a CVCF mode; a slave initial startup step of initially starting up the slave in a grid interconnection mode; and a control mode changing step of the master and the slave changing control modes thereof when output fluctuation of the master and the slave becomes a predetermined threshold or less or when the master and the slave or other inverter power supplies become a predetermined operation state while output voltage of said master and said slave becomes a predetermined threshold or less.

Abstract: According to one embodiment of the invention, a coating apparatus includes a first pipe, a first pump, a first nozzle, a second nozzle, and a holder. The first pipe includes a first inflow port, a first outflow port, and a second outflow port. The first pump is configured to supply liquid toward the first inflow port. The first nozzle includes a first nozzle inflow port and a first nozzle discharge port. The first nozzle inflow port is connected to the first outflow port. The first nozzle discharge port is configured to discharge the liquid passing through the first pipe. The second nozzle includes a second nozzle inflow port and a second discharge port. The second nozzle inflow port is connected to the second outflow port. The second nozzle discharge port is configured to discharge the liquid passing through the first pipe. The holder holds the first nozzle and the second nozzle. The holder is configured to form a first state and a second state.

Abstract: According to one embodiment, a cause analyzing apparatus includes a processing circuit. The processing circuit acquires a reference data group and target data. The processing circuit calculates an outlier score of an explanatory variable of the target data. The processing circuit calculates a relationship weight representing strength of a relationship between an objective variable and the explanatory variable of the reference data group. The processing circuit calculates a property weight representing a degree of match between values of the objective variable and the explanatory variable of the target data. The processing circuit calculates a cause score of the explanatory variable based on the outlier score, the relationship weight, and the property weight.

Abstract: According to one embodiment, a fuel cell system supplies high-pressure oxygen to a fuel cell by a compressor unit in which a compressor and a turbine are interlocked. An oxygen-containing gas flowing out from an oxygen-containing gas flow path flows into a cooling water tank and then is discharged. Cooling water is supplied from the cooling water tank to a cooling water flow path in the fuel cell.

Abstract: According to one embodiment, a solar cell includes a first electrode, a second electrode, and a photoelectric conversion layer disposed between the first electrode and the second electrode. In a case where a photoluminescence spectrum of the photoelectric conversion layer is measured at a temperature of 100 K or lower, a first maximum value (A) which is a maximum value of emission intensity in a wavelength range of more than 650 nm and 1000 nm or less is 100 times or less of a second maximum value (B) which is a maximum value of emission intensity in a wavelength range of 600 nm or more and 650 nm or less (A?100B).

Abstract: A storage battery device including a housing, battery packs, and a heat detection member having a linear structure. The battery packs are accommodated in the housing. The battery packs are electrically connectable to each other. The heat detection member has a heat detection function and continuously extends while making thermal contact with a member located near bottom surfaces of the battery packs.

Abstract: According to one embodiment, a stator includes a stator core with slots, and multi-phase segment coils each including coil segments each including a first linear part and a second linear part arranged in different slots and a bridge part, the coil segment formed of a rectangular conductor. An innermost coil segment in the slot is structured with divided segments adhered together. Each divided segment includes a first linear part and a second linear part, and a bridge part, and is formed of a rectangular conductor cross-sectional area of which is smaller than the rectangular conductor of other coil segments. The bridge parts of the divided segments are arranged to cross each other in the radial direction.

Abstract: A battery includes: an outer container; an electrode assembly; a lid member; a current collection tab; an electrode terminal; a lead; an insulation guard; and a pair of protrusions. The outer container includes a bottom wall and a peripheral wall, and the peripheral wall includes a pair of side walls opposed to each other across the internal cavity in a longitudinal direction. The current collection tab protrudes from the electrode assembly in a lateral direction in the internal cavity, and the insulation guard electrically insulates the lead and the current collection tab from an inner surface of the outer container in the internal cavity. Each of the pair of protrusions protrudes from the insulation guard and abuts on a boundary portion between corresponding one of the pair of side walls and the bottom wall.

Abstract: In one embodiment, a control apparatus for a carbon dioxide capturing apparatus includes a model creator configured to create a model for predicting a deterioration state of an absorbing solvent in the carbon dioxide capturing apparatus through learning, based on data regarding the carbon dioxide capturing apparatus, and a deterioration time determiner configured to determine a deterioration time of the absorbing solvent, using the model created by the model creator. The control apparatus further includes a computer configured to compute a replacement amount by which an entirety or a part of the absorbing solvent is to be replaced with a new absorbing solvent, based on the deterioration time determined by the deterioration time determiner. The control apparatus further includes a controller configured to control the carbon dioxide capturing apparatus, based on the replacement amount computed by the computer.

Abstract: A power conversion device is disclosed in which a first command to change amplitude and phase of AC-power by grid forming control (GFM) is generated. A second command to change amplitude and phase of the AC-power by grid following control (GFL) is generated. A modulation circuit changes amplitude and phase of the AC-power in response to the first or second command. The first command is corrected before input to the modulation circuit is switched from the second command to the first command such that a difference between target amplitude of the first command and amplitude of a given grid voltage becomes a threshold or smaller, a difference between target frequency of the first command and frequency of the grid voltage becomes a threshold or smaller, and a difference between target phase of the first command and phase of the grid voltage becomes a threshold or smaller.

Abstract: According to an embodiment, a communication device includes a communication unit, a transfer unit, an error detection unit, and a transfer disablement control unit. The communication unit receives a frame. The transfer unit transfers the frame to a frame storage unit of a transfer destination. The error detection unit detects an error in the frame. The transfer disablement control unit disables transfer by the transfer unit when an error is detected by the error detection unit.

Abstract: According to one embodiment, a rotary electric machine includes a stator and a rotor. In a stator iron core of the stator, tips of the teeth defining openings of the slots through which the armature windings of different phases pass include a pair of chamfers. A rotor iron core of the rotor includes a plurality of grooves the outer peripheral surface of which is concave along a central axis line. Each of the grooves forms a wave shape, and includes a first groove portion disposed in a leading side of the rotation direction and a second groove portion disposed in a trailing side of the rotation direction. The first groove portion and the second groove portion are asymmetric with respect to d-axis.

Abstract: According to an embodiment, a communication system includes a first communication control apparatus connected between a network connection apparatus and a first client apparatus, a second communication control apparatus connected between the network connection apparatus and a second client apparatus, and a communication control management apparatus that is connected to the network connection apparatus and manages communication by the first communication control apparatus and second communication control apparatus.

Abstract: According to an embodiment, an embedded magnet rotor comprises: a rotor shaft, a rotor core having permanent magnet housing spaces; and flat plate-shaped permanent magnets. Permanent magnet housing spaces each extend more radially outward than a position where the permanent magnet is held by a magnet holding outer projection and each have a communication opening communicating with a gap space. A radial thickness of each of the two chips sandwiching the communication opening and a circumferential width of the communication opening are in such a dimensional relation as to prevent a fragment produced by break of the permanent magnet from protruding from the communication opening and coming into contact with the stator.

Abstract: According to one embodiment, a vacuum interrupter includes a vacuum insulation container, a fixed side contact provided in the vacuum insulation container, and a movable side contact provided in the vacuum insulation container and configured to contact and separate from the fixed side contact. A first contact surface of the movable side contact configured to contact the fixed side contact is planar. A second contact surface of the fixed contact configured to contact the movable side contact is spherical protruding toward the movable side contact.

Abstract: According to an embodiment, an information processing apparatus includes a communication unit, an operation unit, a storage unit, a fingerprint sensor, and a processor. The fingerprint sensor captures fingerprint information from a finger in response to the inputting of the operation to the operation unit. The processor is configured to: perform fingerprint authentication based on the fingerprint information; store, if the fingerprint authentication has succeeded, authentication information indicating that the fingerprint authentication has succeeded in the storage unit; and if the authentication information is stored in the storage unit, upon receiving a fingerprint authentication request requesting fingerprint authentication from the external device via the communication unit, transmit, to the external device via the communication unit, a fingerprint authentication response indicating that the fingerprint authentication has succeeded.