Abstract: An energy management device includes a measurement manager and a communicator. The measurement manager manages energy information based on a physical quantity measured from at least one measurement object belonging to each of a plurality of energy types in a customer. The communicator communicates the energy information of each of the energy types to another device over a network.

Abstract: According to one embodiment, there is provided a power electronics device including: a connector connected to a power line; a power controller; a connection detection processor; and a collision monitor. The power controller performs at least one of generating an electric signal to the power line and detecting an electric signal on the power line via the connector. The connection detection processor performs a connection detection process with use of the power controller to detect another power electronics device connected to the power line. The collision monitor monitors whether or not collision of electric signals occurs on the power line during the connection detection process and controls the connection detection processor according to a monitoring result of whether or not the collision of electric signals occurs.

Abstract: According to one embodiment, there is provided a power electronics device in which a selects a first power electronics device and a second power electronics device from power electronics devices, based on power attribute information and communication attribute information of each power electronics device, and the first power electronics device is a master of power allocation control of electric energy that the power electronics devices connected to one power line of power lines perform input and output on the one power line, and the second power electronics device is a master of output power phase synchronization control of power which the power electronics devices connected to the one power line outputs to the one power line.

Abstract: An inverter control circuit has a quantizer configured to generate a switching signal which changes over switches of a main circuit converting a DC voltage into an AC voltage, and a filter circuit configured to generate a signal having specific transfer characteristic by using a signal correlated with an output voltage of an LC filter which smooths the AC voltage and an instruction signal corresponding to a target value of an output voltage of the main circuit, wherein the quantizer generates the switching signal by quantizing an output signal of the filter circuit.

Abstract: According to some embodiments, there is provided a power electronics device including: a controlling unit, a determining unit, a confirming unit and a determining unit. The controlling unit performs surveillance/control concerning an input/output of power to a power line with other power electronics devices connected via the power line. The determining unit determines a master device which is a subject of the surveillance/control and a slave device which is controlled by the master device, based on power characteristic information of the other power electronics devices from among the other power electronics devices and the power electronics device. The confirming unit confirms whether the master device and the slave device determined by the determining unit are matched with the master device and the slave device determined by the other power electronics devices. The determining unit permits a start of the surveillance/control when matching is determined by the confirming unit.

Abstract: According to an embodiment, a wireless communication apparatus includes a packet generator, a queue unit, a predictor and a scheduler. The packet generator packetizes data. The queue unit temporarily stores a packet to be transmitted. The predictor predicts a transmission time of a first packet to obtain a first time. The scheduler outputs a second packet to the queue unit at a second time earlier than the first time. An interval from a third time when transmission of the second packet is complete until the first time is equal to or shorter than a predetermined period.

Abstract: An energy management device includes a measurement manager and a communicator. The measurement manager manages energy information based on a physical quantity measured from at least one measurement object belonging to each of a plurality of energy types in a customer. The communicator communicates the energy information of each of the energy types to another device over a network.

Abstract: According to one embodiment, there is provided a power electronics device including: a connector connected to a power line; a power controller; a connection detection processor; and a collision monitor. The power controller performs at least one of generating an electric signal to the power line and detecting an electric signal on the power line via the connector. The connection detection processor performs a connection detection process with use of the power controller to detect another power electronics device connected to the power line. The collision monitor monitors whether or not collision of electric signals occurs on the power line during the connection detection process and controls the connection detection processor according to a monitoring result of whether or not the collision of electric signals occurs.

Abstract: According to one embodiment, a controlling apparatus includes a power phase controlling unit to control the phase of the power to be output to the power line by the power converting apparatus, based on the synchronous signal, and when a disruption of the synchronous signal is detected, control the phase of the power to be output to the power line by the power converting apparatus, based on the synchronous signal received before the disruption. The controlling apparatus includes a communication controlling unit to control the communicating unit such that, for information to determine a master that sends the synchronous signal, the communicating unit performs either one of a receiving from the controlling apparatus for the other power converting apparatus and a sending to the controlling apparatus for the other power converting apparatus, while the power phase controlling unit performs the control based on the synchronous signal received before the disruption.

Abstract: According to one embodiment, there is provided a power electronics device in which a controlling unit selects a first power electronics device and a second power electronics device from power electronics devices, based on power attribute information and communication attribute information of each power electronics device, and the first power electronics device is a master of power allocation control of electric energy that the power electronics devices connected to one power line of power lines perform input and output on the one power line, and the second power electronics device is a master of output power phase synchronization control of power which the power electronics devices connected to the one power line outputs to the one power line.

Abstract: According to some embodiments, there is provided a power electronics device including: a controlling unit, a determining unit, a confirming unit and a determining unit. The controlling unit performs surveillance/control concerning an input/output of power to a power line with other power electronics devices connected via the power line. The determining unit determines a master device which is a subject of the surveillance/control and a slave device which is controlled by the master device, based on power characteristic information of the other power electronics devices from among the other power electronics devices and the power electronics device. The confirming unit confirms whether the master device and the slave device determined by the determining unit are matched with the master device and the slave device determined by the other power electronics devices. The determining unit permits a start of the surveillance/control when matching is determined by the confirming unit.

Abstract: According to one embodiment, there is provided a power electronics device including: a connection unit connected to a first power line; a communication unit; at least one unit of an electricity change unit and an electricity detection unit; and a control unit. The communication unit performs communication with other power electronics devices. The electricity change unit changes an energization state of the first power line and the electricity detection unit detects a change in the energization state of the first power line. The control unit specifies a power electronics device connected to the first power line out of the other power electronics devices using the communication unit and said at least one unit of the electricity change unit and the electricity detection unit.

Abstract: An inverter control circuit has a quantizer configured to generate a switching signal which changes over switches of a main circuit converting a DC voltage into an AC voltage, and a filter circuit configured to generate a signal having specific transfer characteristic by using a signal correlated with an output voltage of an LC filter which smooths the AC voltage and an instruction signal corresponding to a target value of an output voltage of the main circuit, wherein the quantizer generates the switching signal by quantizing an output signal of the filter circuit.

Abstract: According to an embodiment, a wireless communication apparatus includes a packet generator, a queue unit, a predictor and a scheduler. The packet generator packetizes data. The queue unit temporarily stores a packet to be transmitted. The predictor predicts a transmission time of a first packet to obtain a first time. The scheduler outputs a second packet to the queue unit at a second time earlier than the first time. An interval from a third time when transmission of the second packet is complete until the first time is equal to or shorter than a predetermined period.

Abstract: An electric vehicle control system for controlling an electric vehicle. The electric vehicle control system includes an inverter adapted to receive DC power from an overhead power line for converting the DC power into three-phase AC power, a permanent magnetic synchronous motor connected to receive the three-phase AC power from the inverter for driving the electric vehicle, a control device for generating an opening signal based on a malfunction signal from the inverter or an operating instruction, and an opening device connected to receive the opening signal from the control device for opening the connection between the inverter and the permanent magnetic synchronous motor.