Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Optimizing configuration method for micro-grid filters

An optimized configuration and micro-grid technology, applied in harmonic reduction devices, AC networks to reduce harmonics/ripples, etc., can solve problems affecting power quality, micro-grid control impact, and total harmonics cannot be ignored.

Active Publication Date: 2014-08-06
STATE GRID CORP OF CHINA +3
View PDF2 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Computers, color TVs, various office equipment and household appliances all contain a large number of nonlinear loads. The current of these circuits contains a large number of harmonic components. Inputting into the grid will cause voltage waveform distortion and affect power quality.
Although the equipment capacity of a single user is small, the harmonics generated seem to be very few, but there are often a large number of identical electrical equipment in the microgrid, and the total amount of harmonics generated by them will reach a level that cannot be ignored. Grid control has a big impact

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
  • Optimizing configuration method for micro-grid filters
  • Optimizing configuration method for micro-grid filters
  • Optimizing configuration method for micro-grid filters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0066] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0067] Considering that the coexistence of multiple harmonic sources and loads in the microgrid is becoming more and more prominent, the total amount of harmonics generated by them will reach a level that cannot be ignored, which will have a great impact on the control of the microgrid. In order to deal with the harmonic problem in the microgrid more effectively and reasonably, this patent adopts the method of hierarchical optimization configuration to deal with the optimal configuration problem of the filter device in the microgrid.

[0068] Such as figure 1 , the present invention provides a method for optimizing the configuration of a microgrid filter, the method comprising the following steps:

[0069] Step 1: Establish the microgrid filter optimization configuration objective function;

[0070] Step 2: Determine the optimal configuration constraints of...

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 an optimizing configuration method for micro-grid filters. The method comprises the following steps of setting up optimizing configuration objective functions of the micro-grid filters, determining optimizing configuration constraint conditions of the micro-grid filters, and adopting a self-adaptation genetic algorithm and a differential evolution algorithm to adapt to carry out optimizing configuration on the micro-grid filters. The method can be used for optimizing the installation position, the installation type, the installation class number and the parameter of the passive and active filters in a whole micro-grid operating with harmonic wave source loads; on the premise that harmonic wave currents meet the constraint conditions and the filters operate safely, the total investment cost of the filters can be reduced, and the harmonic waves can be effectively restrained.

Description

technical field [0001] The invention relates to an optimal configuration method, in particular to an optimal configuration method for a microgrid filter. Background technique [0002] The possible sources of harmonics in the microgrid mainly include: harmonics generated by nonlinear loads in the microgrid, harmonics generated by the power electronic interface of the micropower source, and harmonic penetration of the distribution network. [0003] The load of the microgrid is mainly low-voltage electrical equipment. These low-voltage electrical equipment are mostly equipped with phase control circuits or rectification circuits. The current contains high harmonic components. This type of load has a small capacity but a large number and relatively concentrated. The impact cannot be ignored. Photovoltaic cells, fuel cells, and micro gas turbines are commonly used micro power sources in micro grids. They generally need to be converted into alternating current through power conve...

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 Applications(China)
IPC IPC(8): H02J3/01
CPCY02E40/40
Inventor 吕志鹏盛万兴刘海涛李蕊刘岚吴鸣俞勤政唐亚迪徐永海陶顺
Owner STATE GRID CORP OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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