Supercharge Your Innovation With Domain-Expert AI Agents!

Active power filtering system and control method thereof and related equipment

A technology of power filtering and control methods, applied in the direction of active power filtering, electrical components, circuit devices, etc., can solve problems such as harmonic voltage fluctuations, abnormal operation of electrical equipment, etc., to improve work performance, solve abnormal work, The effect of suppressing power grid frequency and power supply harmonic voltage fluctuations

Inactive Publication Date: 2019-12-31
GUANGDONG POWER GRID CO LTD +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides an active power filter system and its control method and related equipment, which can solve the problem of abnormal operation of electrical equipment caused by harmonic voltage fluctuations

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
  • Active power filtering system and control method thereof and related equipment
  • Active power filtering system and control method thereof and related equipment
  • Active power filtering system and control method thereof and related equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0054] The first aspect of the present application provides an active power filter system.

[0055]For ease of understanding, see figure 1 , figure 1 It is a schematic structural diagram of the active power filter system in the embodiment of the present application, such as figure 1 As shown, specifically:

[0056] Including power supply current control circuit...

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 embodiment of the invention discloses an active power filtering system, a control method thereof and related equipment. The active power filtering system comprises a power supply current control circuit and a load current control circuit, wherein the power supply current control circuit comprises a power supply side and a power supply impedance, the load current control circuit comprises an HPF, an APF and a load side, the APF comprises an instruction current operation circuit, a current tracking control circuit, a drive circuit and a main circuit which are sequentially connected in seriesfrom a load side to a power supply side, and the power supply side is electrically connected with the instruction current operation circuit. The system is advantaged in that the power supply currentcontrol circuit and the load current control circuit share the instruction current operation circuit, the current tracking control circuit, the driving circuit and the main circuit, so the APF can quickly track change of the load harmonic current, influence of power grid frequency and power supply harmonic voltage fluctuation is suppressed, a problem of abnormal operation of electrical equipment caused by harmonic voltage fluctuation is solved, working performance of a hybrid active filter is effectively improved, and reliability is high.

Description

technical field [0001] The present application relates to the technical field of active power filtering, and in particular to an active power filtering system, a control method thereof, and related equipment. Background technique [0002] With the continuous development of the economy, various power electronic equipment / loads are continuously put into the power system, resulting in the generation of a large number of harmonics, which affects the power supply quality of the power system; on the other hand, more and more precision instruments and digital equipment are The power supply quality of the power grid puts forward higher requirements. Therefore, it is of great significance to accurately detect and effectively control harmonics. [0003] Ideally, the power supply should always provide each customer with a perfectly sinusoidal voltage. However, due to some reasons, it is difficult for power supply companies to maintain this ideal state, and the actual voltage and curr...

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
IPC IPC(8): H02J3/18
CPCH02J3/1842Y02E40/20
Inventor 邓珊彭龙张永旺党三磊招景明欧振国黄博伟
Owner GUANGDONG POWER GRID CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com