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Simulation model and method of DC circuit breaker

A technology of DC circuit breaker and simulation model, which is applied in the direction of AC network circuit, circuit device, power transmission AC network, etc., can solve the problem of cumbersome research methods of hybrid circuit breaker working performance, and achieve the effect of improving simulation efficiency.

Active Publication Date: 2018-03-13
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention lies in the cumbersome problem of the existing hybrid circuit breaker working performance research methods

Method used

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  • Simulation model and method of DC circuit breaker
  • Simulation model and method of DC circuit breaker
  • Simulation model and method of DC circuit breaker

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Embodiment Construction

[0040] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] An embodiment of the present invention provides a DC circuit breaker simulation model, such as figure 1 As shown, including: parallel main branch 1, transfer branch 2 and energy consumption branch 3, where

[0042] The main branch circuit 1 includes: a switch component 11, a first controlled voltage source 12 and a first bidirectional conduction circuit 13, the switch component 11, the first controlled voltage source 12 and the first Two-way conduction circuit 13 is connected in series, wherein the swi...

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Abstract

The invention relates to a simulation model and method of a DC circuit breaker. The simulation model comprises a main branch, a transfer branch and an energy consumption branch which are connected inparallel, wherein the main branch comprises a switch part, a first controlled voltage source and a first bidirectional conduction circuit, the switch part, the first controlled voltage source and thefirst bidirectional conduction circuit are connected in series, the transfer branch comprises a second controlled voltage source and a second bidirectional conduction circuit, the second controlled voltage source and the second bidirectional conduction circuit are connected in series, and the energy consumption branch comprises a resistor and a controlled power supply which are arranged in parallel. An existing model for working performance research model of the DC circuit breaker is simplified, and the performance simulation efficiency of the DC circuit breaker is improved.

Description

technical field [0001] The invention relates to the technical field of flexible DC power transmission in power systems, in particular to a DC circuit breaker simulation model and method. Background technique [0002] Flexible DC transmission is an important technical means for the development of smart grids. Compared with conventional DC transmission methods, flexible DC transmission has strong technical advantages in island power supply, interconnection of large-scale AC systems, and new energy grid integration. development prospects. As one of the key equipment to ensure the safe and reliable operation of the flexible DC transmission system, the DC circuit breaker plays an important role in the establishment of the DC grid, improving the flexibility of the grid operation and the reliability of the power supply. [0003] However, in the process of breaking the fault current in the existing flexible DC transmission, the segmentation time of the mechanical circuit breaker is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/26H02J3/36
CPCH02H7/262H02H7/268H02J3/36H02J2203/20Y02E60/60
Inventor 常彬林畅刘栋庞辉贺之渊翟雪冰高路纪锋闫鹤鸣
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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