A power management system including a management apparatus configured to assign divided computation processing constituting at least a part of predetermined computation processing to a distributed computing device placed in a facility, wherein the management apparatus includes a controller configured to perform assignment processing configured to assign the divided computation processing to the distributed computing device based on at least one of a prediction value of an output power of a distributed power supply placed in the facility, a prediction value of power consumption of the facility, and a prediction value of a surplus power of the facility.

A power management system including a management apparatus configured to assign divided computation processing constituting at least a part of predetermined computation processing to a distributed computing device placed in a facility, wherein the management apparatus includes a receiver configured to receive a message including an information element indicating executability of computation processing by the distributed computing device, and a controller configured to perform assignment processing configured to assign the divided computation processing to the distributed computing device based on the executability of the computation processing.

A power supply system includes a coupling device including a power conversion device, and one or more power supply units. Each of the power supply units includes a distributed power supply, a first interface outputting DC power to the power conversion device, an individual converter converting the DC power to AC power, and a second interface outputting the AC power output from the individual converter. The power conversion device includes a coupling side converter that converts the direct current power output from the power supply units to AC power, and an interface for outputting the AC power output from the coupling side converter. The power supply system includes a controller for controlling at least one of a corresponding one of the power supply units or the power conversion device based on communication information obtained by communication between the corresponding one of the power supply units or the power conversion device.

An externally-controllable electrical power generating system for providing auxiliary or backup power to a load bus or device. The system may be used indoors, and generally includes a power source comprising a first DC output, an electrical storage unit comprising a DC input coupled to the first DC output of the power source, the electrical storage unit further comprising a second DC output. An inverter coupled to the second DC output receives power, the inverter having a first AC output that can be synchronized with an AC load bus or AC grid. The system includes a contactor connected between the first AC output and an AC load bus, and is controllable with an external controller operated by a utility or a managing entity, such that the external controller can enable the controller to connect or disconnect the contactor.

A controller according to an embodiment controls a hydrogen system including at least a hydrogen production system in which received power is planned in advance and a hydrogen production amount changes in accordance with the received power. The controller includes: a processor that calculates, in a preparation time period before a demand adjustment time period in which a target value of the received power is set in advance, a control command value such that input power to be inputted as the received power to the hydrogen production system matches the target value at a start of the demand adjustment time period; and a command controller that outputs the control command value calculated by the processor to the hydrogen production system.

A power transfer system includes a first branch including a controlled switch and a second branch including a variable frequency converter, in parallel between an AC network and a reversible pump-turbine, the variable frequency converter includes: a first AC/DC converter having a first DC interface, and a second AC/DC converter having a second DC interface, the first and second DC interfaces being connected by a DC link, a control circuit having a first mode wherein it simultaneously opens the switch and it transfers electrical power until it reaches the same frequency on two AC interfaces, and having a second mode wherein it closes the switch of the first branch; an energy storage system; and a switching system for selectively connecting the energy storage system to the DC link.

A micro-network includes at least two heating appliances with communication modules, one being used for obtaining and transmitting a first data set having at least one measurement related to the electricity consumption of the heating appliance, at least one measurement related to the electricity production of same and at least one measurement related to a state of charge of an electrical energy storage device, and subsequently controlling the power supply to the heating member. The other module is used for obtaining, and transmitting to a supervision module, first and second data sets including at least one item of data relating to an electrical power source, and subsequently transmitting a first setpoint state of charge related to the state of charge of the electrical energy storage device of the other heating device. The first setpoint state of charge is taken into account when controlling the power supply to the heating member.

A multi-port converter includes a hybrid energy storage system (HESS) that provides a faster dynamic response to load changes than prior art systems, and enables either downsizing of the main energy storage system (ESS) to increase the life of the main ESS (e.g. energy battery), or retaining the same size ESS and increasing the range or life of the power source. The multi-port convertor can advantageously result in lower investment and maintenance costs, and can also advantageously provide a path for inputs to directly feed the load. All these benefits can be achieved while reducing the number of active switches and overall component count as compared to prior art systems.

A server that manages energy of a power grid by using a plurality of energy storage resources includes a loss obtaining unit and a selector. The loss obtaining unit obtains for each of the plurality of energy storage resources, energy loss including retention loss and input and output loss, the energy loss being caused in storing energy in each energy storage resource. When surplus electric power occurs in the power grid, the selector selects at least one energy storage resource for storing surplus electric power from among the plurality of energy storage resources based on the energy loss caused in storing surplus electric power.

A power system may comprise a power system controller and a power storage. The power system controller may comprise a first pair of power terminals, a second pair of power terminals, at least one switch, and a central controller coupled to the at least one switch. The power storage may comprise storage power terminals connected to the first pair of power terminals. The second pair of power terminals may be coupled to a power source. The power system controller may be configured to control the switch to connect and disconnect the second pair of power terminals. The power system controller may be configured to receive power from the power storage during a process of connecting and disconnecting the second pair of power terminals.