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Optical storage microgrid system control method

A control method and micro-grid technology, applied in the fields of photovoltaic power generation, electrical components, circuit devices, etc., can solve the problems of low power factor, poor power quality of the micro-grid system, inability to eliminate specified harmonics, etc., and achieve the goal of improving power quality. Effect

Inactive Publication Date: 2017-04-19
北京科诺伟业科技股份有限公司
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Problems solved by technology

[0006] The purpose of the present invention is to overcome the disadvantages of poor power quality and low power factor in the micro-grid system caused by non-linear loads, the need for hardware investment for separate treatment, and the traditional active filter device can not eliminate the shortcomings of specified sub-harmonics, and proposes an optical storage Control method of microgrid system

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0033] Such as figure 1 As shown, the optical storage microgrid system applying the present invention includes a photovoltaic power generation system, an energy storage system, an energy management system, a power quality analyzer and a load, wherein the energy storage system includes a battery and an energy storage converter, and the energy storage converter There are three ports, the DC port is connected to the battery, the AC port has a grid-connected port and an off-grid side port, the photovoltaic power generation system and loads are connected to the busbar of the AC side port of the energy storage converter, and the Connected to the grid, the power quality analyzer monitors and analyzes the PCC point power and power quality in real time. The control of the micro-grid system in the present invention is realized through the energy storage...

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Abstract

An optical storage microgrid system control method is characterized by utilizing an energy management system of an optical storage microgrid system to detect the harmonic content and the power factors at a point of common coupling of the optical storage microgrid system, adopting a multiple proportion resonant controller under the rotational coordinates to realize the astatic control of a fundamental current and a harmonic current, and optimizing and controlling an energy storage converter of the optical storage microgrid system to realize the reactive current compensation and harmonic current compensation functions of the optical storage microgrid system under a grid connected mode, eliminate the specified harmonic in the optical storage microgrid system and improve the electric energy quality of the optical storage microgrid system.

Description

technical field [0001] The invention relates to a control method for an optical storage microgrid system. Background technique [0002] With the rapid development of new energy, output power fluctuations caused by external environmental conditions have caused a great impact on the power grid, making the development of centralized new energy more and more challenges. The microgrid system came into being. Microgrid (referred to as microgrid) refers to an autonomous system composed of distributed power sources, energy storage devices, energy conversion devices and related loads that can realize self-control, protection and management. The emergence of microgrids is very It solves the contradiction between new energy and the power grid well, and makes the output power of the distributed power source controllable, so it is friendly to the power grid. When the microgrid is running in the grid-connected mode, the main control unit energy storage converter in the optical storage mi...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J3/01H02J3/18
CPCH02J3/01H02J3/1842H02J3/383Y02E10/56Y02E40/30Y02E40/40
Inventor 樊晓磊许洪华
Owner 北京科诺伟业科技股份有限公司
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