A system for controlling a photovoltaic system and a method and device for controlling a photovoltaic system are provided. The method includes that: whether an abnormity occurs to a control component which currently controls the photovoltaic system or not is determined; and under the condition of determining that the abnormity occurs, switching to another control component to control the photovoltaic system is executed. According to the disclosure, the technical problem of relatively low reliability of a control system for a photovoltaic system providing power for a smart home system in the related art is solved.

Systems, methods, and devices are provided for controlling part of an electric power distribution system using an intelligent electronic device that may rely on communication from wireless electrical measurement devices. Wireless electrical measurement devices associated with different phases of power on an electric power distribution system may send wireless messages containing electrical measurements for respective phases to an intelligent electronic device. When wireless communication with one of the wireless electrical measurement devices becomes inconsistent or lost, the intelligent electronic device may synthesize the electrical measurements of the missing phase using electrical measurements of remaining phases. The intelligent electronic device may use the synthesized electrical measurements to control part of the electric power distribution system.

A method of controlling a renewable energy power plant is provided. The method includes retrieving output power measurement values for each inverter of a total number of inverters from a plurality of sensors provided at a location proximal to each inverter and retrieving a point of interconnection (POI) output measurement value for the renewable energy power plant based on a plurality of ON inverters of the total number of inverters. The method also includes calculating a POI measured setpoint for the renewable energy power plant based on a difference between a power reference value for the renewable energy power plant and the retrieved POI output measurement value for the renewable energy power plant, assigning a setpoint to each of the ON inverters and classifying each ON inverter as either a TRACKING ON inverter or a NON-TRACKING ON inverter based on whether each ON inverter is tracking at the setpoint.

A modular photovoltaic (PV) array system includes a PV array installed onto a fleet vehicle such as a trailer, bus etc., a host control system into which a plurality of fleet vehicles can connect to collectively generate electricity, and a subscriber system which collectively tracks energy generation and allocates respective contributions to the system.

A system for controlling an electricity supply to a load comprises at least one battery for storing energy. The system also comprises a controller for determining when to switch between a first mode wherein electricity is supplied to the load from a mains electricity circuit; and a discharging mode wherein electricity is supplied from the battery to the load via the mains electricity circuit. The determining is based on information associated with the electricity supply.

Systems and methods for synchronizing subunits a multi-unit power distribution network contemplate selectively opening and closing a switch at the power source to disconnect and reconnect the power source to power conductors to send a synchronization signal to one or more remote subunits. Once the remote subunits are synchronized and able to disconnect from the power conductors, leak detection at the power source may be enabled to detect inadvertent loads on the power conductors (e.g., a human touching the power conductors). Further, the remote subunits may power off and on based on the synchronization signal thereby ensuring that an end device may receive power concurrently from multiple remote subunits so as to meet the power requirements of the end device. Enabling the leak detection improves the safety features of the power distribution network and synchronized power delivery to the end device prevents improper shut downs.

A power distribution network monitoring system includes a CT sensor and a power management device. The CT sensor includes a measurement component and a transmitter. The measurement component is installed at a plurality of predetermined positions along a power line constituting the power distribution network, and measures current of the power line at each predetermined position. The transmitter wirelessly transmits, as transmission data, the power spectrums of the fundamental wave, third harmonic, and fifth harmonic, as well as the effective current values used to detect abnormalities in the power distribution network, the data being at least part of the data measured by the measurement components. The power management device includes a receiver and a management database. The receiver receives the transmission data. The management database stores the received data.

A plurality of power adapters configured to apply power to loads is described. The plurality of power adapters may comprise a first power adapter configured to apply power to a first load, the first power adapter having a first recess for receiving a first module that is removably attached to the first recess; a second power adapter configured to apply power to a second load, the second power adapter having a second recess for receiving a second module that is removably attached to the second recess; and a control device adapted to identify the first power adapter and the second power adapter; wherein the control device is adapted to map the first power adapter and the second power adapter based upon locations of the first power adapter and the second power adapter.

A platform services system communicating with and controlling a plurality of power distribution micro-networks is provided. Each power distribution micro-network has its own wireless mesh network and a master control unit for scheduling efficient power allocation to devices in the micro-network and communicating with the platform services system. Each device in the micro-network is controlled by its own satellite unit. Each satellite unit communicates with and receives tokens from its master control unit. Each wireless mesh network uses both a Zigbee protocol and a Dynamic Device Addressing (DDA) protocol. The DDA allows communication with a neighboring micro-network in the event that its master controller cannot communicate with the platform services system.

The present disclosure provides a computer-implemented method for recommending one or more control schemes for controlling peak loading conditions and abrupt changes in energy pricing of one or more built environments associated with renewable energy sources. The computer-implemented method includes collection of a first set of statistical data, fetching of a second set of statistical data, accumulation of a third set of statistical data, reception of a fourth set of statistical data and gathering of fifth set of statistical data. Further, the computer-implemented method includes analysis of the first set of statistical data, the second set of statistical data, the third set of statistical data, the fourth set of statistical data and the fifth set of statistical data. In addition, the computer-implemented method includes recommendation of one or more control schemes to a plurality of energy consuming devices and a plurality of energy storage and supply means.