Patent classifications
H02J3/0075
Control architectures for power distribution networks with distributed energy resource
Architectures, apparatuses, methods, systems, and techniques for controlling electrical power distribution network are disclosed. Distributed, hierarchical controls including layered locational energy service control variables may be utilized to determine and control the provision of energy services, including real power, reactive power (VAR), and capacity reserves, by DERs in a distribution network. In a first ex-ante iteration a simulation may be performed to calculate a set of subnetwork-specific control variables based on subnetwork locational energy service prices and a plurality of sets of DER-specific control variables based on DER locational energy service prices. In a second ex-ante iteration a set of actual subnetwork-specific control variables based on subnetwork locational energy service prices and a plurality of sets of actual DER-specific control variables based on DER locational energy service prices. Provision of energy services by DERs in a distribution network occur in response to the determined control variables.
DATA CENTER ENERGY MANAGEMENT SYSTEM
This disclosure describes techniques that include managing flows of energy within a system that includes a data center and using at least some of the energy flows to provide power to the data center. In some examples, this disclosure describes a system comprising a power generation system, a battery storage system having a state of charge attribute, and processing circuitry having access to an electrical power grid, the power generation system, and the battery storage system. In one example, the processing circuitry is configured to: determine an energy utilization forecast for a data center; monitor energy availability factors; and determine, based on the energy utilization forecast and the monitored energy availability factors, an energy flow configuration defining energy flows involving with the electrical power grid, the power generation system, the battery storage system, and the data center.
Power plant analysis device, power plant analysis method, and program
An operation data acquisition unit is configured to acquire, from an operation data storage unit for storing operation data collected every first period from a power plant, the operation data collected during a latest second period that is longer than the first period. A unit profit amount calculation unit is configured to calculate an average amount of profit per unit time in relation to a unit amount of performance improvement of the power plant based on the operation data that has been acquired.
SYSTEM AND METHOD FOR STORAGE AND WITHDRAWAL OF ELECTRICAL ENERGY FROM A SUBTERRANEAN ENVIRONMENT
A subterranean energy storage and retrieval system, having a wellbore; an energy storage cell placed in the wellbore; and an electrical connection attached to the energy storage cell to a surface of the wellbore. The energy storage system is managed and regulated by a power management system coupled to rechargeable power cells. A bypass circuit is utilized to remove specific energy storage cells from the circuit. Temperature regulation is managed geothermally through the energy storage housing.
SUPPLY-AND-DEMAND MANAGEMENT APPARATUS, COMPUTER READABLE STORAGE MEDIUM, AND SUPPLY-AND-DEMAND MANAGEMENT METHOD
Provided is a supply-and-demand management apparatus including: a result management unit that manages a power supply result indicating a result of power supplied among a plurality of customers of a community; and a deriving unit that derives, based on power supply results from a first customer to other customers from among the plurality of customers, an incentive to supply power from the first customer to a second customer from among the other customers.
POWER INTERCHANGE APPARATUS, COMPUTER READABLE STORAGE MEDIUM AND POWER INTERCHANGE METHOD
Included are: a performance information obtaining unit that obtains, for each of a plurality of first power customers that configure a first community, information about a power interchange performance between the first power customer and the first community; a contribution degree determination unit that determines a contribution degree of at least one of the plurality of first power customers to a surplus power amount of the first community in a certain time period, based on information about the performance obtained by the performance information obtaining unit.
CIRCUITS FOR ELECTRICITY-GENERATING UNITS
A system receives locations of a plurality of electricity-generating units in an area, and it divides the area into a plurality of sectors. The system traverses through the sectors and forms a set of sectors. The set of sectors includes a set of electricity-generating units. The set of electricity-generating units does not exceed an aggregate voltage threshold. The system forms a circuit with the set of electricity-generating units by determining a shortest path to connect the set of electricity-generating units. The system adjusts this shortest path to incorporate environmental and physical constraints.
METHOD FOR ANALYZING CORRELATION BETWEEN DIFFERENT LINE LOSS ACTIONS
A method is for analyzing the correlation between different line loss actions, which records, for each individual to which line loss actions occur, all the line loss actions that occur to the individual; and counts, based on two categorization manners: by individual and by line loss action, line loss actions recorded in the database, to obtain line loss action counting results corresponding to respective categorization manners; then, based on the two counting results, collects respective multi-line loss action sequences; and acquires probability data as a data source for probability calculation, to obtain line loss action occurrence conditional probabilities for different line loss actions, so that a targeted a targeted loss reduction plan can be formulated.
Power source load control
A method and apparatus for managing one or more grid supplied and separately metered power services, backup power sources, transfer switches and related powered loads using load monitoring and control which allow selectively connecting, disconnecting, limiting and controlling various loads which are powered thereby. The method and apparatus include operating with a system with a dual revenue meters providing grid power, a backup power source and a dual transfer switch wherein the power capabilities of each are economically sized while allowing reliability and convenience in selecting and powering loads. The connections to power sources and control of the loads powered thereby take into account various parameters including cost of power, load handling capability, type of load, load size, environmental factors, load usage during and subsequent to load connection, load priority and operator wishes.
ONLINE MULTI-PERIOD POWER DISPATCH WITH RENEWABLE UNCERTAINTY AND STORAGE
A computer system provides real-time control of power dispatch for a power system. The power system includes power generators, renewable power generators, load, and storage devices interconnected by a power grid. The computer system obtains input data, and solves an online multi-period power dispatch problem formulated from the input data and incorporates AC power flow in the power grid. The computer system generates control signals according to a solution of the online multi-period power dispatch problem, and sends the control signals to controllers of the power generators and the storage devices. In every time period during operation of the power system, the computer system updates the solution, generates updated control signals according to the updated solution, and sends the updated control signals to the controllers to continuously operate the power system with minimized operational cost while fully utilizing renewable power output.