Optimal Design of Parameters for High Voltage DC Fault Current Limiter with Permanent-magnet-biased Saturation

Jiaxin YUAN; Zhewei ZHANG; Hang ZHOU; Pengcheng GAN

doi:10.7500/AEPS20190920011

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Optimal Design of Parameters for High Voltage DC Fault Current Limiter with Permanent-magnet-biased Saturation

Application Research | 更新时间：2025-06-16

- Optimal Design of Parameters for High Voltage DC Fault Current Limiter with Permanent-magnet-biased Saturation
- Automation of Electric Power Systems Vol. 44, Issue 13, Pages: 135-142(2020)
- 作者机构：
  
  1. 武汉大学电气与自动化学院，湖北省武汉市 430072
  2. 武汉大学深圳研究院，广东省深圳市 518057
- 作者简介：
- 基金信息：
  
  National Key R&D Program of China
- DOI：10.7500/AEPS20190920011
  CLC：
- Received：20 September 2019，
  
  Revised：2020-01-11，
  
  Published Online：17 June 2020，
  
  Published：10 July 2020
- 稿件说明：
移动端阅览
袁佳歆,张哲维,周航等.永磁饱和型高压直流限流器参数优化设计[J].电力系统自动化,2020,44(13):135-142.

YUAN Jiaxin,ZHANG Zhewei,ZHOU Hang,et al.Optimal Design of Parameters for High Voltage DC Fault Current Limiter with Permanent-magnet-biased Saturation[J].Automation of Electric Power Systems,2020,44(13):135-142.
袁佳歆,张哲维,周航等.永磁饱和型高压直流限流器参数优化设计[J].电力系统自动化,2020,44(13):135-142. DOI： 10.7500/AEPS20190920011.

YUAN Jiaxin,ZHANG Zhewei,ZHOU Hang,et al.Optimal Design of Parameters for High Voltage DC Fault Current Limiter with Permanent-magnet-biased Saturation[J].Automation of Electric Power Systems,2020,44(13):135-142. DOI： 10.7500/AEPS20190920011.

摘要

随着高压直流系统短路电流水平的提升，故障电流可能超出断路器遮断容量，或使其体积与成本急剧增加。使用故障限流器抑制故障电流上升速度，能够降低对直流断路器性能的要求。其中，永磁饱和型故障限流器具有无需外加控制、自动响应、无需外加励磁电流和损耗较低等优点。目前限流器参数设计主要针对稳态电感值，考虑暂态特性的参数设计及优化方法仍待研究。为此，文中提出一种用于直流系统的永磁饱和型故障限流器参数优化设计方法。首先，介绍了该类型限流器的工作原理。其次，提出了限流器优化设计的约束条件和优化目标函数，以成本最低为目标进行了限流器参数优化设计。最后，建立了有限元和电路仿真模型进行仿真计算，并研制了一台限流器样机，进行了试验。仿真和试验结果表明：采用所提方法可以设计出符合要求的限流器，降低了限流器成本，减小了直流断路器分断过程中的应力。

Abstract

With the increase of the short-circuit current level in high voltage direct current (HVDC) system

the fault current may make circuit breakers have either insufficient capacity

or larger size and higher cost. Using fault current limiter (FCL) can slow down the rising rate of fault current and reduce the performance requirements on DC breakers. FCL with permanent-magnet-biased saturation has advantages of automatic response

low power loss

and does not need external control and exciting circuit. The parameter design methods in previous works mainly focus on inductance in steady state

while the parameter design and optimization method of characteristic in transient process still needs to be studied. An optimization design method of FCL with permanent-magnet-biased saturation for DC system is proposed. Firstly

the working principle of the proposed FCL is introduced. Then

constraints and optimization object functions of optimal design for FCL are given

and an optimal design of parameters for FCL is obtained with the lowest cost. Finally

the simulation model of finite element and circuit is established and experiment with an FCL prototype is conducted. The simulation and experiment results show that the proposed method can be used to design the FCL

which can meet the requirements

reduce the cost of FCL and the electrical stress of the DC breaker during fault breaking.

关键词

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references

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