一种基于Z源的双向直流固态断路器*

doi:10.11985/2020.02.005

电气工程学报 ›› 2020, Vol. 15 ›› Issue (2): 34-40.doi: 10.11985/2020.02.005

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一种基于Z源的双向直流固态断路器^*

于春风¹(),李伟林²(),王雨峰²()

1.海军航空大学青岛校区青岛 266000;
2.西北工业大学自动化学院西安 710000

收稿日期:2020-01-19 出版日期:2020-06-25 发布日期:2020-07-31
作者简介:于春风,男,1983年生,硕士,副教授。主要研究方向为航空电力系统。E-mail:13953228232@163.com|李伟林,男,1983年生,博士,教授。主要研究方向为航空电力系统。E-mail:liweilin907@126.com|王雨峰,男,1995年生,博士研究生。主要研究方向为直流电保护。E-mail:1275891284@mail.nwpu.edu.cn
基金资助:
* 国家自然科学基金资助项目(51407144);国家自然科学基金资助项目(51777169)

A Bidirectional DC Solid-state Circuit Breaker Based on Z-source

YU Chunfeng¹(),LI Weilin²(),WANG Yufeng²()

1. Navy Aeronautics University Qingdao Branch, Qingdao 266000 China;
2. School of Automation, Northwestern Polytechnical University, Xi’an 710000 China

Received:2020-01-19 Online:2020-06-25 Published:2020-07-31

摘要/Abstract

摘要：

直流微电网的发展是未来电力系统发展的一个重要方向,但是目前还存在一些问题限制其发展,比如易发生短路故障以及短路故障电流难切除等。为了解决这些问题,对一种基于Z源拓扑的双向直流断路器(Bidirectional solid-state circuit breaker,BSSCB)进行研究。BSSCB是一个多功能的设备,包括直流系统中的电源流向控制、电路中断、故障电流限制和中断等功能。结合仿真波形对BSSCB在不同工作模态下的工作原理进行了详细的分析,给出了该双向断路器的设计过程和元器件选择标准,最后通过试验验证了该双向直流断路器的有效性。

关键词: 断路器, 直流微电网, 故障隔离, 多功能

Abstract:

The development of DC microgrid is an important direction for the development of power systems in the future, but there are still some problems that limit the development of DC microgrid, such as prone to short-circuit faults and short-circuit fault currents. A bidirectional DC circuit breaker (BSSCB) based on Z source topology is introduced in order to solve these problems. BSSCB is a versatile device that includes power flow control, circuit interrupts, fault current limiting and interrupts in DC systems. The working principle of the BSSCB under different working modes is analyzed in detail with the simulation waveform. The design process and component selection criteria for the bidirectional circuit breaker are given later. Finally, the feasibility of the bidirectional DC circuit breaker is verified by experiments.

Key words: Circuit breaker, DC microgrid, fault isolation, multi-function

中图分类号:

TM561

于春风, 李伟林, 王雨峰. 一种基于Z源的双向直流固态断路器^*[J]. 电气工程学报, 2020, 15(2): 34-40.

YU Chunfeng, LI Weilin, WANG Yufeng. A Bidirectional DC Solid-state Circuit Breaker Based on Z-source[J]. Journal of Electrical Engineering, 2020, 15(2): 34-40.

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参考文献 17

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参数		数值
晶闸管T	I_T/A	100
	t_q/μs	50
	V_DMR/V	100
电源V_S/V		28
电容C		220 μF/50 V
电感L		1 mH/2 A
辅助电阻Ra/kΩ		1.5
辅助电容Ca/μF		220
负载电阻R_load		100 Ω/10 W
负载电容C_load		680 μF/50 V
负载电感L_load		33 μH/1 A

一种基于Z源的双向直流固态断路器^*

A Bidirectional DC Solid-state Circuit Breaker Based on Z-source

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