A demand side electric power supply management system is disclosed. The system comprises an islanded power system having a point of coupling to a supply grid. The islanded power system supplies a plurality of electric loads, each of which is associated with a load controller to control the maximum power demanded by that load. A measuring means associated with the point of coupling measures the total power transfer between the grid and the islanded system, and a system controller monitors the measured power transfer relative to a set point and provides a control signal to a plurality of load controllers. Each load controller receives substantially the same control signal and determines the maximum power which the or each load associated with the load controller is allowed to draw from the islanded power system based on information contained in the control signal.

Provided are a method and apparatus for dynamically controlling electrical loads, a storage medium and an electronic apparatus. The method includes that: a current capacity balance of a user sub-region is acquired from an intelligent electricity monitoring and metering terminal through a mobile terminal; when the current capacity balance is smaller than a load power of an electric consumption device to be started in the user sub-region, a regional coordination control apparatus or a server is requested through the mobile terminal to adjust and increase a capacity allocated for the user sub-region, such that a capacity balance will be greater than or equal to the load power; and whether to allow to start the electric consumption device is determined according to a decision replied by the regional coordination control apparatus or the server.

A power distribution priority controller and a controlling method of a photovoltaic power generation system. The controller includes a calculating unit configured to calculate an electric device priority list according to running state information of electric devices and photovoltaic power generation data and to determine a preferred power distribution schemes; a controlling unit configured to acquire in real time the running state information of all electric devices, and control the electric devices according to the preferred power distribution schemes determined by the calculating unit; a communicating unit configured to transmit the photovoltaic power generation data, the running state information of electric devices, and control command information; a storage unit configured to store, in time units, the photovoltaic power generation data, the running state information of electric devices, and the preferred power distribution schemes.

Adaptive charging networks in accordance with embodiments of the invention enable the optimization of electric design of charging networks for electric vehicles. One embodiment includes an electrical supply; a plurality of adaptive charging stations; wherein at least one adaptive charging station distributes power to at least one other adaptive charging station; wherein at least one adaptive charging station is configured to communicate capacity information to a controller; and wherein the controller is configured to control the distribution of power to the plurality of adaptive charging stations based upon the capacity information received from at least one adaptive charging station.

A method includes obtaining data indicating an amount of energy stored by a battery of a sensor device; receiving data related to at least one condition in an area in which the sensor device is located; determining a reporting interval based on the data indicating the amount of energy stored by the battery of the sensor device and the data related to at least one condition in the area in which the sensor device is located; transmitting data indicating the reporting interval to the sensor device; and receiving a plurality of measurement reports transmitted from the sensor device according to the reporting interval. The energy consumed by the sensor device can be dynamically modified by dynamically modifying the reporting interval.

A power demand estimation apparatus, comprising: an error measuring unit configured to measure an error of estimated power demand estimated with respect to one or more customer facilities; an error addition unit configured to obtain an added error obtained by adding errors measured with respect to segment periods in a unit term for correction, the unit term for correction including a predetermined number of consecutive series of segment periods; and a power demand estimation unit configured to estimate power demand values with respect to the respective segment periods, and correct the estimated power demand value estimated with respect to last predetermined number of segment period in the unit term for correction, based on an added error obtained with respect to the segment periods preceding the last predetermined number of segment period in the unit term for correction.

A controller for individual sites of the microgrid controls loads, sources, the importing of power, and the exporting of power as a function of the energy storage at the site. A microgrid of such sites provides the benefits of improved energy storage without the need for real-time communication between sites.

A disclosed information handling system is coupled to a power adapter that is coupled to an AC line power source. The system includes an embedded controller storing instructions executable to determine that a trigger condition for limiting electrical power drawn by the system from the power adapter is met and, in response to the determination and in accordance with a low power operating mode, to limit electrical power drawn from the power adapter by the system to an amount less than or equal to the lesser of a power rating of the power adapter and a capacity of the AC line power source to supply electrical power. Limiting the electrical power drawn from the power adapter may include limiting the electrical power consumed by operation of the system or limiting a rate at which an internal battery of the system is charged by electrical power supplied by the power adapter.

A device capable of self-detecting and self-allocating additional power and associated method are disclosed. The device includes a first module to route current from first power pins to a voltage rail having the first voltage level. The device includes a second module coupled to second power pins associated with a second voltage level. The second module routes current from the second power pins to the voltage rail having the first voltage level via a connecting voltage rail. The method includes determining, by the device, whether or not a presence of unused power pins is detected. Based on the detection, the method includes calculating a total amount of available additional power, repurposing the unused power pins as actively used power pins, and updating a power budget value based on the total amount of available additional power. The device may dynamically allocate power to accelerators based on a power allocation table and the power budget value.

An apparatus for monitoring an electrical apparatus, the load monitoring apparatus comprising a controller which is configured to capture and process voltage and current data of an electrical apparatus, which is electrically connected with a power supply, to obtain electrical parameters of the electrical apparatus, to store the electrical parameters as measured electrical parameters, to compare the measured electrical parameters with a set of pre-stored electrical parameters, to determine whether the measured electrical parameters match with the stored electrical parameters, and to operate a power switch to turn off power supply to the electrical parameters if the measured electrical parameters do not match with the stored electrical parameters.