| 基于IGBT串联技术的10kV固态直流断路器研制 |
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| 引用本文： | 封磊,苟锐锋,卓放,杨晓平,张帆,王江涛,李超.基于IGBT串联技术的10kV固态直流断路器研制[J].南方电网技术,2016,10(4):43-49. |
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| 作者姓名： | 封磊 苟锐锋 卓放 杨晓平 张帆 王江涛 李超 |
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| 作者单位： | 西安交通大学电气工程学院，西安710049; 西安西电电力系统有限公司，西安710065,西安西电电力系统有限公司，西安710065,西安交通大学电气工程学院，西安710049,西安西电电力系统有限公司，西安710065,西安交通大学电气工程学院，西安710049,西安西电电力系统有限公司，西安710065,西安西电电力系统有限公司，西安710065 |
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| 基金项目： | 国家高技术研究发展计划（863计划）项目（2013AA050103）。 |
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| 摘 要： | 直流断路器作为未来基于电压源换流器的柔性直流输电(voltage source converter based high voltage direct current,VSC-HVDC)系统组网的关键设备,可以在出现短路故障时快速切断故障电流并使故障部分退出运行,避免停运整个直流系统。提出了一种适用于柔性直流输电系统的固态直流断路器技术方案,建立了IGBT串联的固态直流断路器仿真模型,研究了IGBT栅极电阻、拖尾电流和门极电荷等差异对IGBT串联均压特性的影响。仿真结果表明,静态和动态均压电路可有效改善IGBT间的均压效果。最后搭建了10个IGBT串联的直流断路器样机及实验回路,并完成了直流母线电压10 kV、峰值电流5.1 k A的关断实验,验证了基于IGBT串联技术固态直流断路器方案的可行性。
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| 关 键 词： | 直流断路器 固态 IGBT 串联 柔性直流输电 |
| 收稿时间： | 3/1/2016 12:00:00 AM |
Development of 10 kV Solid State DC Breaker Based on IGBT Series-Connected Technique |
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| FENG Lei,GOU Ruifeng,ZHUO Fang,YANG Xiaoping,ZHANG Fan,WANG Jiangtao and LI Chao.Development of 10 kV Solid State DC Breaker Based on IGBT Series-Connected Technique[J].Southern Power System Technology,2016,10(4):43-49. |
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| Authors: | FENG Lei GOU Ruifeng ZHUO Fang YANG Xiaoping ZHANG Fan WANG Jiangtao and LI Chao |
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| Affiliation: | 1. School of Electrical Engineering, Xi''an Jiaotong University, Xi''an 710049, China; 2. Xi''an XD Power Systems Co., Ltd., Xi''an 710065, China,Xi''an XD Power Systems Co., Ltd., Xi''an 710065, China,School of Electrical Engineering, Xi''an Jiaotong University, Xi''an 710049, China,Xi''an XD Power Systems Co., Ltd., Xi''an 710065, China,School of Electrical Engineering, Xi''an Jiaotong University, Xi''an 710049, China,Xi''an XD Power Systems Co., Ltd., Xi''an 710065, China and Xi''an XD Power Systems Co., Ltd., Xi''an 710065, China |
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| Abstract: | DC breaker, which can cut off the short current immediately and avoid the whole DC systems shut down, while DC fault occurs, is a key device for DC grid for the voltage source converter high voltage DC (VSC HVDC). A scheme of solid state DC beaker for the VSC HVDC is proposed, then a simulation model of DC beaker based on series connected IGBTs is set up. The influence of voltage sharing characteristics of series connected IGBTs caused by the gate resistor, the tail current and the gate charge is studied. Simulation results show that the static and dynamic circuits can greatly improve the performance of voltage balance. At last a ten IGBT series connected DC breaker and its test system are developed, and the breaker successfully turns off 5.1 kA current under 10 kV DC, which shows the feasibility of the solid state DC circuit breaker based on IGBT series connected technique. |
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| Keywords: | DC breaker solid state IGBT series connected VSC HVDC |
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