Protection system suitable for power electronic equipment simulation

A technology for protection systems and power electronics, applied in emergency protection circuit devices, electrical components, etc., can solve the problems of low simulation reliability and damage to equipment, etc., to improve stability and reliability, rational use of resources, and reliability. Effect

Active Publication Date: 2013-10-23
STATE GRID CORP OF CHINA +1
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a protection system suitable for simulation of power electronic equipment. The hybrid simulation system provided by the present invention uses hardware and software resources to protect th

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  • Protection system suitable for power electronic equipment simulation
  • Protection system suitable for power electronic equipment simulation
  • Protection system suitable for power electronic equipment simulation

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[0042] The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0043] The structure diagram of the protection system suitable for power electronic equipment simulation provided by the present invention is as follows figure 1 As shown, it mainly includes three parts, namely main protection, backup protection, and redundancy protection. The main protection subsystem is connected to the digital simulator and the interface circuit respectively; the main protection subsystem and the redundant protection subsystem are The backup protection subsystem exchanges information with an interface circuit, and the interface circuit is connected to power electronic equipment. The three subsystems complement each other, greatly improving the stability and reliability of the interface during digital-analog hybrid simulation of power electronic equipment.

[0044] (1) Main protection subsystem:

[0045] The logic blo...

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Abstract

The invention relates to the field of power systems, in particular to a protection system suitable for power electronic equipment simulation. The protection system comprises a main protection subsystem, a backup protection subsystem and a redundant protection subsystem. The main protection subsystem is connected with a digital simulator and an interface circuit respectively, information exchange is conducted between the main protection subsystem and the redundant protection subsystem, information exchange is conducted between the backup protection subsystem and the interface circuit, and the interface circuit is connected with power electronic equipment. Hardware and software resources are used for a hybrid simulation system, over-voltage protection is performed on an interface, therefore, the purposes for reasonably utilizing resources and improving reliability of simulation are achieved, and the problems that the equipment is easily damaged when simulation is conducted and reliability of simulation is low are solved.

Description

technical field [0001] The invention relates to the field of power systems, in particular to a protection system suitable for simulation of power electronic equipment. Background technique [0002] With the advancement of simulation technology, various real-time digital simulation tools and physical simulation devices are more and more applied to the field of power electronics simulation, and the simulation scale and research field have been greatly expanded. As one of the advanced simulation methods, digital-analog hybrid simulation can not only carry out full digital simulation of the system, but also carry out simulation tests on physical devices, which optimizes the simulation process of the power system. [0003] Since the power electronic equipment itself is composed of power devices, when performing digital-analog hybrid simulation on it, the interface voltage will be very high, and the steady-state voltage is generally around 100V, which cannot be tolerated by ordina...

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Application Information

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IPC IPC(8): H02H7/20
Inventor 周俊郭剑波马世英宋云亭刘翀
Owner STATE GRID CORP OF CHINA
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