串联补偿型限流器对10kV配电系统的影响研究

发布时间：2019-03-21 18:13

【摘要】：文中围绕10 k V配电网系统,主要研究了一种串联补偿型故障限流器对电力系统的影响,该限流器由主回路串联的电容电感、与电容并联的金属氧化物避雷器、阻尼回路、反并联晶闸管以及旁路开关组成。文中首先介绍了其拓扑图和工作原理,接着理论分析了该限流器对单机无穷大系统的影响,然后在建立的仿真模型的基础上,分别研究了在正常工作状态下以及短路状态下限流器对系统的影响。通过理论分析和MATLAB/Simulink对系统进行仿真,研究表明该限流器在正常工作时可以改善电能质量,提高线路传输能力;在短路故障时能够起到限制短路电流的作用,提高暂态稳定性。
[Abstract]:In this paper, the influence of a series compensated fault current limiter on the power system is studied around the 10 kV distribution network system. The current limiter consists of a capacitor inductor in series, a metal oxide arrester in parallel with the capacitor, a damping loop, and a series compensation fault current limiter. The anti-parallel thyristor and bypass switch are composed. In this paper, the topology diagram and the working principle are introduced firstly, then the influence of the current limiter on the single machine infinite bus system is analyzed theoretically, and then on the basis of the established simulation model, the current limiter is applied to the infinite bus system of a single machine. The influence of current limiter on the system is studied under normal working condition and short circuit condition respectively. Through theoretical analysis and MATLAB/Simulink simulation of the system, the research shows that the current limiter can improve the power quality and the transmission capacity of the line when the current limiter is working normally. It can limit the short-circuit current and improve the transient stability in the short-circuit fault.
【作者单位】：中国电力科学研究院;西安交通大学电气学院电力设备电气绝缘国家重点实验室;国家电网平高集团有限公司;
【基金】：国家自然科学基金(51121005) 国家基础研究项目(2015CB251000) 国家电网科技项目资助~~
【分类号】：TM471

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