Abstract:
A battery control system that communicates by way of a communication network with a plurality of batteries that are connected to an electric power system includes a communication characteristics detection unit that, for each of the plurality of batteries, detects characteristics of communication paths between the batteries and the battery control system within the communication network. The battery control system includes a selection unit which selects, from among the plurality of batteries, each battery that has characteristics of communication paths within a predetermined communication characteristics range, as a regulating battery that is to be used for regulating electric power of the electric power system. The battery control system includes a control unit that supplies operation instructions that instructs the regulating batteries that were selected in the selection unit to perform a charging or discharging operation.
Abstract:
System and methods for performing microgrids cooperation by optimal coalition formation in a distribution network are disclosed. A Microgrid Cooperation Module (MCM) is designed for utility EMS. MCM contains a coalition formation unit and an energy exchange decision unit. Furthermore, a communication protocol for energy exchange between two microgrids is designed. The coalition formation unit applies an innovative hierarchical coalition formation algorithm to provide optimal coalition for real time operation. The real time energy status of microgrids will be provided to coalition formation unit which will determine the coalitions (given a distance threshold) among microgrids to minimize the power loss. Energy exchange decision unit then determine actual energy transfer between pairs of microgrids within a coalition. Upon receiving the energy transfer information through a communication channel, the microgrids will start communicating and process energy transfer. The optimality of the formed coalitions is ensured by performing coalitional game theoretical analysis.
Abstract:
A power system 10 is provided with a power conversion device 110 connected to an input power supply 200, a battery 120 and a load 130 connected in parallel with each other to the output side of the power conversion device 110, and a control device 140 controlling charging/discharging of the battery 120, wherein the control device 140 receives output power of the power conversion device 110, determines, based on the received output power, charge or discharge power of the battery 120 such that the output power becomes close to a first value, and charges or discharges the battery 120 based on the determined charge or discharge power.
Abstract:
A power router is adequately managed or controlled to construct a power network system in which power cells are asynchronously connected with each other. A first leg (11) to a fourth leg (14) each include one end connected to a direct current bus (101), include an other end as an external connection terminal connected to an external connection party, and have a function of bidirectionally converting power. The control unit (19) controls an operation of each of the first leg (11) to the fourth leg (14). The control unit (19) includes a storage unit (191) and a CPU (192). The storage unit (191) includes a leg identification information database (194) including identification information of the first leg (11) to the fourth leg (14). The CPU (192) outputs an operation instruction to an instruction destination leg referring to the identification information of the leg identification information database (194).
Abstract:
Provided is an action analysis device (10), comprising an acquisition unit (11) which acquires sounds, and an analysis unit (12) which analyzes the frequency of the acquired sounds per predetermined time interval. The analysis unit (12) compares frequency distributions of frequency components within each frequency distribution which is a frequency analysis result, said frequency components corresponding to work sounds which are emitted in a predetermined task which a subject perform, and thereby generates information which denotes a change in time required for the predetermined task of the subject over elapsed time.
Abstract:
A Service Provider (SP) includes a controller that instructs several Producers (provide the electric energy) and Consumers (consume the electric energy) about the electrical energy. The controller selects one of the Producers as an Active Producer (AP) that provides a predetermined volume of the electric energy, one of a remainder of the Producers as a Passive Producer (PP) that adjusts a volume of provided electric energy to be, one of the Consumers as an Active Consumer (AC) that consumes a predetermined volume of the electric energy, and one of a remainder of the Consumers as a Passive Consumer (PC) that adjusts a volume of consumed electric energy, and the controller instructs one of Passive Subscribers (either the PP or the PC) to adjust the electric energy, so as to mitigate a difference between a total supply volume and a total demand volume.
Abstract:
A supply information acquisition unit acquires supply information indicating supply energy from a power supply unit. A demand information acquisition unit acquires demand information indicating a demand energy from a power receiving unit and accepting conditions. A first matching unit performs first matching for determining the power supply unit that supplies power to each power receiving unit so as to fulfill accepting conditions of each power receiving unit. A surplus power supply unit determination unit determines a surplus power supply unit, which is the power supply unit having a surplus supply energy. An arbitrary power receiving unit determination unit determines an arbitrary power receiving unit, which is the power receiving unit in which a demand energy is not fulfilled.
Abstract:
A power identification device at least includes a measurement information acquisition unit for acquiring the amount of power generation by a power producer and the amount of power consumption by a consumer respectively as measurement information, a rule management unit for managing a generation rule for generating attribute information, a distribution rule and a loss rule for distributing the attribute information to the consumer, the attribute information containing a primary attribute related to each of the amount of power generation and the amount of power consumption and an additive attribute related to the amount of power generation, an attribute computation unit for generating the attribute information from the measurement information based on the generation rule and distributing the attribute information from the power producer to the consumer based on the distribution rule and the loss rule, and an attribute output (visualization) unit for outputting the attribute information to the outside.