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A DC circuit breaker simulation model and method

A DC circuit breaker and simulation system technology, which is applied in the direction of AC network circuits, circuit devices, power transmission AC networks, etc., can solve the problems of cumbersome research methods on the working performance of hybrid circuit breakers, and achieve the effect of improving simulation efficiency

Active Publication Date: 2019-07-02
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2
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  • Abstract
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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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  • A DC circuit breaker simulation model and method
  • A DC circuit breaker simulation model and method
  • A DC circuit breaker simulation model and method

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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 present application provides a simulation model and method for a direct current circuit breaker, and a storage medium. The simulation model comprises a primary branch, a transfer branch, and an energy consumption branch that are connected in parallel. The primary branch comprises: a switch component, a first controlled voltage source, and a first bidirectional conduction circuit, the switch component, the first controlled voltage source, and the first bidirectional conduction circuit being 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 being connected in series. The energy consumption branch comprises a resistor and a controlled current source that are connected in parallel.

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 Patents(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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