A smart energy recycling system and methods are disclosed. The smart energy recycling system comprises an energy device comprising emitting substrates configured to emit light of a pre-defined wavelength after receiving power from power grid. A photochromatic material disposed around emitting…
A method for optimal control of a power grid is proposed. The method may include generating, by using a processor, a digital twin model which learns synthetic data and collected data respectively obtained in a power generation resource unit and a demand resource unit to predict grid balancing. The…
An electric-power management administration system includes an electric-power management administration device adapted to administer charging/discharging of a first charging/discharging system and a second charging/discharging system, wherein the first charging/discharging system and the second…
A power supplying system and a power supply adjustment method are provided. The power supplying system includes a plurality of power suppliers. Each power supplier is connected to a power source respectively, and the power suppliers are connected to a load and a bus together. Each power supplier…
A control method includes performing multi-level classification processing on distributed energy resources to obtain corresponding power supply equipment, power storage equipment, and hybrid equipment, analyzing and processing power distribution data and load data in the smart grid to obtain a…
Systems and methods relating to control systems for DC/AC inverters that receive power from photovoltaic based renewable energy resources. When the DC/AC inverters are operated in on-grid mode, the DC/AC inverters and the DC/DC control system operate to provide on-grid functions such as maximum…
Disclosed is a power conversion apparatus including a single boost converter circuit and a method for operating the same, including: a power supply selection unit respectively connected to a direct current (DC) power supply and an alternating current (AC) power supply, and configured to connect the…
A photovoltaic inverter and a method for controlling the photovoltaic inverter are provided. The photovoltaic inverter includes a main circuit and a controller. A direct-current side of the main circuit is configured to connect a photovoltaic array, and an alternating-current side of the main…
Systems and methods for providing power to food carts using solar energy, battery storage, and hydrogen fuel cell energy. Systems comprise a plurality of solar panels arranged on a food cart, a battery system disposed in a basement, and a controller configured to monitor and control the power flow…
A solar power generation system configured by connecting a plurality of power generation systems including a solar panel and a DCDC circuit unit in parallel includes a first control unit that performs maximum power point tracking control for a host power generation system that is one of the power…
A smart energy recycling system and methods are disclosed. The smart energy recycling system comprises an energy device comprising emitting substrates configured to emit light of a pre-defined wavelength after receiving power from power grid. A photochromatic material disposed around emitting…
The present disclosure relates to a power-taking circuit suitable for use in conjunction with a bypass circuit of a photovoltaic component, a parallel-type photovoltaic component control device, and a photovoltaic string power distribution system. In embodiments of the present disclosure, the…
A control apparatus includes circuitry configured to communicate with a second control apparatus at a different base from the control apparatus in a power supply system, before performing power interchange, lock at least one first power feeding path for a period of time, and control a converter and…
The present disclosure provides a PID (Potential Induced Degradation) effect suppression system. The PID effect suppression system includes a photovoltaic system, at least one voltage source topology module and a balanced circuit. The photovoltaic system is connected with a power grid. An output…
An objective is to provide a direct current (DC) power supply system capable of maximally generating electric power in a solar power generation process in consideration of an operation state of a load device serving as a power supply destination. In a rectifier (), a traffic volume acquisition unit…
The invention relates to converter technology and can be used to efficiently extract the power from solar panels, convert and transmit the obtained energy to the industrial grid, and service the load to consumers. A power supply apparatus based on photovoltaic panels, which comprises a solar panel…
An exemplary embodiment of the present disclosure provides a current source converter, comprising a transformer, a first circuit, and a second circuit. The transformer can comprise a first winding, a second winding, and a third winding. The first circuit can be electrically coupled to the first and…
A system includes at least one server and a power supply having multiple power supply units. After system boot-up, all power supply units in the power supply are turned on for supplying power to the at least one server. Next, the maximum output power value of the power supply and the conversion…
A photovoltaic inverter and a control method thereof are provided. The photovoltaic inverter includes: a three-phase bridge arm, including an A-phase bridge arm, a B-phase bridge arm, and a C-phase bridge arm, where a midpoint of the A-phase bridge arm is electrically connected to an A-phase line…
A distributed photovoltaic system includes N first photovoltaic modules each configured to convert solar energy into direct current power, N energy storage modules, and N inverters. Output terminals of the N first photovoltaic modules are connected to input terminals of the N energy storage modules…
A power supply system includes a solar light power generation device; a power storage apparatus; a charge/discharge device connected with the solar light power generation device and the power storage apparatus and connectable with power loads, the charge/discharge device storing power generated by…
In examples, provided are decentralized control methods and apparatus for controlling an output of an inverter. Also provided are decentralized control methods and apparatus for controlling demand in islanded microgrids operating with an insufficient distributed energy resource system (DER) power…
This disclosure relates to a photovoltaic energy storage and power system and a three-phase power control method, apparatus and device for load(s). The three-phase power control method for load(s) in a photovoltaic energy storage and power system includes obtaining a drawing or feeding power of a…
A photovoltaic power generation system and a control method therefor, and a power converter are provided. The control method includes: obtaining MLPE state characterization information of the photovoltaic string; determining, based on the MLPE state characterization information, whether there is at…
Voltage in a power transmission-distribution system is managed by calculating a power control amount of a distributed energy resource in consideration of the whole power transmission-distribution system. A power control system includes: a power distribution system contraction unit contracting the…
A photovoltaic inverter and a control method thereof, and a photovoltaic system. The photovoltaic inverter system includes a voltage conversion circuit, an inverter circuit, and a controller. The controller is configured to increase, based on an output power of the inverter circuit in a current…
A system includes multiple electrical nodes connected in series to a primary power source via transmission lines. Each node includes a power converter that can receive first power from the primary power source or another upstream node. The power converter can change a voltage level and/or a…
A micro-power wind-solar hybrid energy harvesting and power generating device including a solar power generation module, a wind power generation module, a control module, an energy storage module, and an accessory structure are provided. The solar power generation module is mainly composed of a…
When the supply of electric power from a first power generation device to a first power supply circuit is cut off, a control device causes electric power to be supplied from a second power generation device to between the first power generation device and a contactor device via a precharge circuit…
A power supply system includes: a first connection circuit including a first connector and a second connector that are capable of connecting a first power supply circuit and a second power supply circuit to each other; a first positive side contactor provided in the first power supply circuit; a…