Intelligent phase selection switch controller

A technology of switch controller and phase selection switch, which is applied in AC network to reduce harmonics/ripples, reactive power compensation, harmonic reduction devices, etc. It can solve the problems of easy arc generation, large zero-point switching error, and narrow application range and other issues to achieve the effect of reducing harmonic pollution

Inactive Publication Date: 2013-10-09
DALIAN JIAOTONG UNIVERSITY
View PDF5 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention addresses the above problems, the main purpose of which is to solve the problem that the capacitor switch has a large inrush current when it is closed, and it is easy to generate an arc when it is disconnected, and further solves the problems that the current

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
  • Intelligent phase selection switch controller
  • Intelligent phase selection switch controller
  • Intelligent phase selection switch controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The present invention will be further described below in conjunction with accompanying drawing:

[0028] Such as figure 1 As shown, the intelligent phase selection switch controller includes a microprocessor, power supply circuit, display circuit, fault alarm circuit, voltage zero point capture signal acquisition and processing circuit, current zero point capture signal acquisition and processing circuit, voltage fault detection signal acquisition and processing circuit, current A fault detection signal acquisition and processing circuit, a magnetic latching relay drive circuit and a switch controller mode conversion circuit. The power supply circuit is a microprocessor, display circuit, fault alarm circuit, voltage zero point capture signal acquisition and processing circuit, current zero point capture signal acquisition and processing circuit, voltage fault detection signal acquisition and processing circuit, current fault detection signal acquisition and processing c...

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 discloses an intelligent phase selection switch controller, and belongs to the technical field of power electronics. The intelligent phase selection switch controller comprises a microprocessor, a power supply circuit, a displaying circuit, a failure alarming circuit, a voltage zero point capturing signal collecting processing circuit, a current zero point capturing signal collection processing circuit, a voltage failure detection signal collection processing circuit, a current failure detection signal collection processing circuit, a magnetic latching relay driving circuit and a switch controller mode conversion circuit. The microprocessor receives input commands and signals input by the four signal collection circuits, carries out processing on the input signals, and controls the magnetic latching relay to achieve zero passage switching. The intelligent phase selection switch controller can achieve flashy-flow-free input of a capacitor and electric-arc-free disjunction of relay contactors, can detect and automatically compensate action time error of zero switching, and can carry out detection on the performance of the relay, so that a user an replace different magnetic latching relays according to actual needs.

Description

technical field [0001] The invention relates to an intelligent phase selection switch controller, which belongs to the technical field of power electronics. Background technique [0002] In the field of electrical control, high current on-off control of alternating current is required in many occasions. Its typical application is the switching control of compensation capacitors during power factor compensation. This type of high current on-off will mainly cause two problems. One is that the surge current will pollute the power grid, and the other is that it will reduce the life of the control relay. To solve these problems, some solutions have been proposed. [0003] The current capacitor switch is mainly divided into three categories: one is the traditional purely mechanical contactor switch, such as the Chinese patent application number 200820050810.8, which discloses an "AC contactor control switch", which includes the first A switch and a second switch, wherein the fi...

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): H02J3/18H02J3/01
CPCY02E40/30Y02E40/40
Inventor 王道顺邹强董华军赵佩凤
Owner DALIAN JIAOTONG UNIVERSITY
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap