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Grid-connected hybrid micro-grid control system

A control system and micro-grid technology, applied in the field of micro-grid structure, can solve the problems of single micro-grid structure, and achieve the effect of reducing processing capacity and recording capacity and improving safety performance

Pending Publication Date: 2022-02-11
POWERCHINA FUJIAN ELECTRIC POWER SURVEY & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the existing microgrid structure is relatively simple and cannot be expanded according to actual needs

Method used

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Embodiment Construction

[0014] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is some embodiments of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the implementation manners in the present invention, all other implement...

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Abstract

The invention provides a grid-connected hybrid micro-grid control system, and the system comprises a micro-grid end which comprises an AC main power grid end; wherein the alternating-current main power grid end comprises a first alternating-current bus, and a synchronous generator, a DER module, an alternating-current load and an energy storage unit which are arranged on the first alternating-current bus in parallel; the micro-grid end further comprises a micro-grid expansion end, the micro-grid expansion end comprises a grid-connected point, a main switch and an interface switch which are sequentially connected in series, and the interface switch is used for being connected with the secondary alternating-current power grid end and the secondary direct-current alternating-current power grid end. The energy storage unit comprises a plurality of energy storage battery packs, and each energy storage battery pack comprises a battery module, a management module, a temperature sensor, a negative temperature coefficient thermistor, an internal memory, a communication module and an external processing end.

Description

technical field [0001] The invention relates to a micro-grid structure, in particular to a grid-connected hybrid micro-grid control system. Background technique [0002] Microgrid refers to a small power generation and distribution system composed of distributed power sources, energy storage devices, energy conversion devices, loads, monitoring and protection devices, etc. The proposal of microgrid aims to realize the flexible and efficient application of distributed power, and solve the problem of grid connection of distributed power with a large number and various forms. [0003] However, the existing microgrid structure is relatively simple and cannot be expanded according to actual needs. Contents of the invention [0004] The invention provides a grid-connected hybrid micro-grid control system, which can effectively solve the above problems. [0005] The present invention is achieved like this: [0006] A grid-connected hybrid microgrid control system, comprising: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/32H02J13/00H02J3/40
CPCH02J3/381H02J3/32H02J13/00032H02J3/40H02J7/00032H02J7/00041H02J2300/22H02J2300/24H02J2300/28Y02E10/56Y02E40/70Y02B90/20Y04S10/12Y04S20/12
Inventor 黄银华张磊罗景生张瑾瑜李莹张天敏文本颖谢鹏燕
Owner POWERCHINA FUJIAN ELECTRIC POWER SURVEY & DESIGN INST CO LTD
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