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高压电器  2015 

超导限流式直流开断技术2:开断模块仿真分析

DOI: 10.13296/j.1001-1609.hva.2015.11.003, PP. 16-21

Keywords: 直流开断,自激振荡,Simulink仿真,超导限流

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Abstract:

文中提出了一种新型的基于超导限流技术的自激型直流断路器,该断路器由超导限流模块和直流开断模块组成。笔者的研究目标是分析直流开断模块的自激开断过程以及相关参数对开断过程的影响,验证原理可行性。文中研究了该超导限流式直流断路器在不同额定电压下(10、100、320kV)开断的可行性。通过研究10kV的额定电压下交换回路参数和电弧参数对开断特性的影响,100kV额定电压下仿真开断模型工作过程,320kV下限流模块和开断模块配合原理,得出该直流断路器原理可行。开断的时间随着电容值和电弧功率损耗因数的增大而减少,随着电感值和电弧时间常数的减小而降低;限流模块和开断模块可以很好的配合;此断路器能在不同电压等级下实现短路电流的开断。

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