Commutation switch type three-phase load imbalance treatment device

A technology of unbalanced load and commutation switch, which is applied in the direction of reducing the asymmetry of the multi-phase network and eliminating/reducing the asymmetry of the multi-phase network. The effect of compact structure, low power consumption and fast commutation speed

Inactive Publication Date: 2017-08-15
天津紫光奇智电气科技有限公司
View PDF1 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the implementation of this scheme, the bidirectional thyristor has been working in the line for a long time. If there is lightning shock or other interference entering the device, it may cause the thyristor to be misconducted, and there is a possibility of phase-to-phase short circuit.
In addition, the contactor coil needs to be charged and closed for a long time, which consumes a lot of energy and ages quickly
And once the control circuit is powered off, the contactor is disconnected, which affects the continuity of power supply

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
  • Commutation switch type three-phase load imbalance treatment device
  • Commutation switch type three-phase load imbalance treatment device
  • Commutation switch type three-phase load imbalance treatment device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0032] see Figure 2 to Figure 3 , a commutation switch type three-phase load unbalance control device, comprising:

[0033] Control components and actuators; of which:

[0034] The actuator includes at least one reversing switch;

[0035] The control components include at least one master controller;

[0036] A current sensor for detecting current information on the branch grid; the signal output terminal of the current sensor is electrically connected to the input terminal of the controller;

[0037] A current sensor for detecting current information on the branch grid; the signal output terminal of the current sensor is electrically connected to the input terminal of the main controller;

[0038] Each main controller detects the three-...

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 a commutation switch type three-phase load imbalance treatment device at least comprising a control part and an execution mechanism. The execution mechanism includes at least one commutation switch. The control part consists of at least one main controller; and a current sensor for detecting current information of a branch grid is also arranged. A signal output terminal of the current sensor is connected with an input terminal of the main controller electrically. And the main controller is connected to a three-phase grid. Each main controller is connected to the at least one commutation switch by wired communication or wireless communication and the commutation switch is electrically connected to the load. Each main controller detects a three-phase unbalanced current, fault information as well as a current phase, and a current load current of the commutation switch controlled by the main controller. On the basis of the unbalanced calculation strategy, calculation is carried out to obtain each switch adjustment target phase and a commutation command is issued. Therefore, large surge current occurrence caused instantaneously during load switching can be avoided; losses resulted from long-term operation of the thyristor can be avoided; and commutation can be carried out without power interruption.

Description

technical field [0001] The invention relates to the technical field of intelligent power distribution, in particular to a phase-change switch type three-phase load unbalance control device. Background technique [0002] In recent years, my country's distribution network construction investment has continued to increase, and the development of distribution network has achieved remarkable results. However, there is still a gap between the level of electricity consumption and the international advanced level. The development of urban and rural areas is unbalanced, and the quality of power supply needs to be improved. Building urban-rural planning, safe and reliable, cost-effective, technologically advanced, and environment-friendly power distribution network facilities and service systems can serve multiple purposes. It can not only protect people's livelihood, stimulate investment, but also promote the improvement of related manufacturing industries. The smart energy strategy ...

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): H02J3/26
CPCY02E40/50H02J3/26
Inventor 郭跃武冯智勇杨俊义常敬冯波
Owner 天津紫光奇智电气科技有限公司
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