Unlock instant, AI-driven research and patent intelligence for your innovation.

Power system switching device and method

A technology of power supply system and switching device, which is applied in the direction of circuit device, emergency power supply arrangement, electrical components, etc., can solve the problems of high cost, large area occupation, complex structure, etc., to reduce cost and area occupation, and reduce cooling equipment , the effect of improving reliability

Active Publication Date: 2015-02-18
STATE GRID CORP OF CHINA +2
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the scheme is complex in structure, high in cost and occupies a large area

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
  • Power system switching device and method
  • Power system switching device and method
  • Power system switching device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0064] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0065] The invention includes 4 high-speed mechanical switches, 2 contactors, and a group of thyristor valve bodies, 1 high-speed switch, 2 contactors, 2 voltage transformers and 2 current transformers, and can realize the hybrid switch All the functions of the split-bus solid-state load switch have all the advantages of the split-bus solid-state load switch of the hybrid switch, the cost is greatly reduced, and the reliability is greatly enhanced.

[0066] A power supply system switching device of the present invention includes power supply I voltage, load I current, power supply II voltage, load II current, high-speed mechanical switches CB1, CB2, CB3 and CB4, contactors C1 and C2, thyristor valve body voltage V1, thyristor valve Body current, current transformer CT1 and CT2, voltage transformer PT1 and PT2;

[0067] ...

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 power system switching device and method. The device comprises a high speed mechanical switch, power supplies, thyristor valve bodies, a contactor, a load, a current transformer and a voltage transformer. The power supplies, the voltage transformer, the high speed mechanical switch, the thyristor valve bodies, the contactor, the load and the current transformer are connected in sequence. The method comprises the switching between the power supplies in the state that the power supply I and the power supply II are normal, the state that the power supply I breaks down, the state that the power supply I recovers from a fault, the state that the power supply II breaks down, and the state that the power supply II recovers from a fault. According to the power system switching device and method, the valve bodies work only when switching is carried out, and a cooling device needed under the condition that the valve bodies work for a long time is omitted. The number of the groups of valve bodies needed during switching is reduced to one from three of the prior art, the switching performance is not influenced, cost and the floor space are reduced greatly, and the reliability of the device is improved.

Description

technical field [0001] The invention relates to a switching device, in particular to a power system switching device and a method thereof. Background technique [0002] In order to realize uninterrupted power supply to the load, the traditional method is to use the backup power automatic switching device to switch the switch circuit breaker to switch the user from the faulty line segment to the non-faulty bus. Mechanical transfer switches (MTS) are generally used in medium-voltage and high-voltage systems. The inherent characteristics of this electromechanical switch make the switching speed and transient characteristics not very ideal, and it is impossible to achieve "seamless" gap switching. The typical switching time of a mechanical switch is between several seconds to tens of seconds, and switching and power failure will inevitably occur to the load, which will bring adverse effects to the load. [0003] A simple solid-state switch consists of two thyristors connected i...

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): H02J9/06
Inventor 黄杰刘慧文詹雄蔡林海赵波
Owner STATE GRID CORP OF CHINA
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