Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

A microgrid structure and its power quality control method

A technology of power quality and micro-grid, applied in the field of power grid, to reduce operating costs, improve anti-islanding capabilities, and compensate for voltage fluctuations

Active Publication Date: 2018-05-18
CHANGSHA VICTORY ELECTRICITY TECH
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, these methods only solve some power quality problems of microgrids, and for grid-connected microgrids with complex structures and diverse loads, it is necessary to comprehensively consider various factors affecting power quality problems to improve the power supply reliability of microgrids as much as possible. and power quality

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A microgrid structure and its power quality control method
  • A microgrid structure and its power quality control method
  • A microgrid structure and its power quality control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0041] figure 1 It is a topological structure diagram of a microgrid according to an embodiment of the present invention, in which both the distributed micro-sources and the common bus have nonlinear loads. Among them, the microgrid includes several distributed micro sources, a common bus, an inverter for compensation and an isolation transformer, and also includes a nonlinear load, a linear load, a first switch K, and a static switch S. Wherein, the several distributed micro-sources (power generation units) are connected in parallel, the distributed micro-sources are connected with the nonlinear load and the linear load, the several distributed micro-sources are connected to the common bus throu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a micro-grid structure and a power quality control method thereof. The micro-grid structure comprises a plurality of distributive micro sources and a common busbar. The distributive micro sources are parallelly connected to the common busbar through corresponding feeder lines and respectively connected with nonlinear loads and linear loads, and the common busbar is connected with the nonlinear loads and the linear loads. A first switch is in parallel connection with an isolation transformer to control an input state of an inverter for compensation. A static switch which is an option switch is arranged at a point of common coupling, and option ends of the static switch correspond to a large power grid side and a ground terminal respectively.

Description

technical field [0001] The invention relates to the technical field of power grids, in particular to a micro-grid structure and a power quality control method thereof. Background technique [0002] At present, combined with the power consumption and management needs of the power grid, more and more user grids have established grids through the grid-connected mode of large grids and micro-grids. By controlling the operation of large grids and micro-grids, the power of the entire user grid is controlled. quality. [0003] As an effective carrier of distributed power, microgrid includes various forms of micro sources, energy storage devices, energy conversion devices, protection devices and load control devices, as well as small power generation systems that can realize self-control, protection and management. It operates in both island and grid-connected modes. [0004] The microgrid provides a new and effective way to improve the reliability of power supply in the power sys...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38H02J3/01
CPCH02J3/01H02J3/38H02J3/388Y02E40/40
Inventor 杨建钟朝露侯小超韩华孙尧原文宾粟梅于晶荣
Owner CHANGSHA VICTORY ELECTRICITY TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com