A communicating unit 113 of a power interchange management system 101 is coupled to a plurality of power interchange apparatuses 102 that control electrical equipment 131 to 133. Each power interchange apparatus is coupled via a system power supply line 160. A computing unit 117 creates a group for interchanging power by acquiring prescribed pieces of information 126 to 128 from the respective power interchange apparatuses and selecting a plurality of prescribed power interchange apparatuses based on the prescribed pieces of information. Prescribed conditions include a condition related to control power. The condition related to control power may be that a first power interchange apparatus on a power transmitting side has power for power transmission control necessary for transmitting power and, at the same time, a second power interchange apparatus on a power receiving side has power for power reception control necessary for receiving power.

Mandatory and optional consumption points are identified to support management of power allocation. A mandatory consumption point is a consumption point required to function at a given time and an optional consumption point is a discretionary consumption point. The energy required for mandatory consumption points to complete their designated functions is calculated. An energy quota is designated for power allocation to the optional consumption points in response to the mandatory consumption point calculation, and the identification of available energy. Energy required for optional consumption points to complete their designated functions is calculated. The optional consumption points are dynamically prioritized and power is allocated to the optional consumption points responsive to this prioritization and with respect to the designated energy quota.

The invention relates to a power distribution system (1), especially a Power-over-Ethernet system, comprising at least one dominant sensor, which may be located within a powered device (4) like a lighting device, and at least one non-dominant sensor, which may be located within another powered device (4), wherein the power distribution system is adapted such that in a system low power mode the at least one dominant sensor (6) consumes power provided by a power providing unit (3) and the at least one non-dominant sensor (6) does not consume the provided power and that the power distribution system (1) switches from the system low powermode to a system high power mode, if the at least one dominant sensor (6) has sensed an event. Since in the system low power mode the at least one non-dominant sensor does not consume power, the power consumption can be reduced.

A method for implementing energy saving for a mixed insertion system (80) of rectifiers with different power includes: acquiring work-related input information, and identifying a type of a rectifier (100); determining a power-on/power-off control mode of each rectifier (200); and performing power-on/power-off rotation, and load change rotation (400) and periodic rotation (500) starting according to the power-on/power-off control mode of each rectifier (300). A mixed insertion system of rectifiers with different power and a device for implementing energy saving thereof are further disclosed.

An engagement guarantee system uses a gamification method and includes a sensor configured to sense vehicle data from a vehicle tag attached to a vehicle, to sense tool data from a tool tag attached to a tool, and to transmit the sensed data to a server A controller is configured to receive the vehicle data and the tool data from the server, to transmit an engagement torque corresponding to the vehicle to the tool, and to receive an engagement result from the tool An analyzer is configured to receive the engagement result from the controller, to analyze the engagement result, and to transmit an analyzed result to a display unit. The display unit is configured to display the analyzed result transmitted from the analyzer.

A method is disclosed for controlling the operating of a consumption appliance by way of a selector switch controlled by an energy saving device connected to a management center. The consumption appliance is kept in its default power mode, until receiving, by the energy saving device, an authentic secured control message sent by the management center. This message includes a command onto the mode in which the consumption appliance has to be switched. A counter is initialized with an initialization value before to be triggered. The consumption appliance is switched in the mode indicated by the command, either until the counter has reached a threshold value, or until receiving another authentic control message. If the counter has reached the threshold value, then the consumption appliance is switched in its default power mode. If another authentic secured control message has been received, then returning to the step of initializing the counter.

A method for optimizing a hybrid wind system including a wind farm having a plurality of wind turbines and one or more energy storage units, is presented. The method includes acquiring actual wind power data associated with one or more dispatch windows. The method includes determining forecasted wind farm power estimates corresponding to the dispatch windows using a plurality of forecast schemes. The method includes computing difference values by comparing the forecasted wind farm power estimates to the actual wind power data. The method includes identifying a wind power forecast scheme based at least in part on the computed difference values and balancing a penalty to the grid with life consumption of the energy storage units while regulating the wind turbines and the energy storage units based at least in part on a subsequent forecasted wind farm power estimate generated using the identified wind power forecast scheme.

A frequency control method for use in a frequency control system including: a server that receives, from a power system operator, a power command for controlling a frequency of a power grid within a predetermined frequency; at least one distributed energy resource; and a local controller connected to the server through a communication network and to the at least one distributed energy resource, the frequency control method includes: receiving the power command from the power system operator; obtaining a frequency measurement of the power grid; predicting a next power command using the frequency measurement, before the next power command is received from the power system operator; and controlling an input or output of the at least one distributed power energy resource using the predicted next power command, before the next power command is received from the power system operator.

This disclosure relates to an apparatus for monitoring a usage of an item. The usage characterises a physical handling of the item. The apparatus comprises a sensor configured to measure the usage of the item and to generate usage data based on the measured usage; a processing unit configured to determine based on the generated usage data a characteristic indicative of the usage of the item; and a wireless communication unit configured to transmit the determined characteristic indicative of the usage of the item and/or the generated usage data.

A battery management system having capability for addressing and time-division communication, the battery management system comprises a controller and a plurality of sensors, the sensors can communicatively connect to the controller; wherein each sensor has a communication port, the controller can transmit a plurality of addressing commands to address each of the sensors, each of the sensors can control the communication period of each communication port in accordance with its received addressing command, therefore the sensors and the controller can execute the time-division communication.