磁通约束型超导限流开关系统应用
|
摘要
随着社会的日益进步和经济的快速发展,对电力需求量越来越大,电力系统的规模也进一步扩大,致使其短路电流水平不断提高,超过现有断路器的遮断能力。磁通约束型超导限流开关是一种具有快速响应速度且能有效抑制短路电流的装置。结合10kV特定传输线路,选取限流开关各部件参数,并提出相应的控制策略。再者,对限流开关内的耦合超导电感线圈进行初步的电磁设计。同时,由于引入限流开关可能会影响电力系统内原有继电保护装置的性能,针对距离保护,理论分析故障过程中限流阻抗的投切对其工作特性的影响,并提出改善措施。最后在Matlab/Simulink中搭建带有磁通约束型限流开关的10kV电力系统仿真模型,仿真研究证明了上述分析结论。结果表明,引入磁通约束型限流开关能有效降低故障电流水平,但其会缩短电力系统原有距离保护装置的保护范围,而对阻抗继电器的动作特性采用合理的修订方法可消除该影响。
With the development of society and economy, the demand for electricity is increasing, and the scale of the power system is further expanded, resulting in the continuous increase of the short-circuit current level and exceeding the interrupting capacity of the existing breaker. The flux-coupling superconducting fault current limiting switch(FC-SFCLS) is a device with fast response speed and can effectively suppress short circuit current. For the specific application scenario of a 10 kV transmission system, the parameters of the current limiting switch are selected and the corresponding control strategy is proposed. Then, the preliminary electromagnetic design of the superconducting coupled inductor coils is performed. However, the introduction of current limiting breaker may affect the performance of original relay protections of power system. Thus, the influence of current limiting impedance on distance protection performance is analyzed, and the improvement measures are then put forward. Finally, a 10 kV power system model integrated with the current limiting breaker is built in Matlab/Simulink. The results show that the introduction of flux-coupling fault current limiting breaker can effectively reduce the fault current level, but it will shorten the protection range of original distance protection devices. The influence can be eliminated by adopting a reasonable revision method.
With the development of society and economy, the demand for electricity is increasing, and the scale of the power system is further expanded, resulting in the continuous increase of the short-circuit current level and exceeding the interrupting capacity of the existing breaker. The flux-coupling superconducting fault current limiting switch(FC-SFCLS) is a device with fast response speed and can effectively suppress short circuit current. For the specific application scenario of a 10 kV transmission system, the parameters of the current limiting switch are selected and the corresponding control strategy is proposed. Then, the preliminary electromagnetic design of the superconducting coupled inductor coils is performed. However, the introduction of current limiting breaker may affect the performance of original relay protections of power system. Thus, the influence of current limiting impedance on distance protection performance is analyzed, and the improvement measures are then put forward. Finally, a 10 kV power system model integrated with the current limiting breaker is built in Matlab/Simulink. The results show that the introduction of flux-coupling fault current limiting breaker can effectively reduce the fault current level, but it will shorten the protection range of original distance protection devices. The influence can be eliminated by adopting a reasonable revision method.
引文
[1]涂春鸣,姜飞,郭成,等.多功能固态限流器的现状及展望[J].电工技术学报,2015,30(16):146-153.Tu Chunming,Jiang Fei,Guo Cheng,et al.Present state and perspectives of multi-function solid-state fault current limiter[J].Transactions of China Electrotechnical Society,2015,30(16):146-153.
[2]陈柏超,魏亮亮,雷洋,等.饱和铁心型桥式故障限流器的性能参数设计与实验[J].电工技术学报,2017,32(13):185-193.Chen Baichao,Wei Liangliang,Lei Yang,et al.Performance paremeter design and experiment of the bridge-type saturated core fault current limiter[J].Transactions of China Electrotechnical Society,2017,32(13):185-193.
[3]刘路昕,张京业,戴少涛.电阻型超导限流器研发现状及所面临的技术瓶颈[J].低温与超导,2016,44(7):1-9.Liu Luxin,Zhang Jingye,Dai Shaotao.Present status of research and development and technical bottlenecks of resistive superconducting fault current limiter[J].Cryogenics and Superconductivity,2016,44(7):1-9.
[4]张志丰,肖立业,邱清泉,等.一种改进串联谐振型限流器[J].电工技术学报,2015,30(6):169-177.Zhang Zhifeng,Xiao Liye,Qiu Qingquan,et al.An improved series-resonant type fault current limiter[J].Transactions of China Electrotechnical Society,2015,30(6):169-177.
[5]张晚英,周有庆,赵伟明,等.新型磁屏蔽感应型超导故障限流器的研究[J].低温物理学报,2008,30(2):161-166.Zhang Wanying,Zhou Youqing,Zhao Weiming,et al.The simulating research on a novel magnetic shielding type of HTSCFCL[J].Chinese Journal of Low Temperature Physics,2008,30(2):161-166.
[6]张晚英,周有庆,赵伟明,等.改进桥路型高温超导故障限流器的实验研究[J].电工技术学报,2010,25(1):70-76.Zhang Wanying,Zhou Youqing,Zhao Weiming,et al.Experimental research on an improved rectifier type high temperature superconducting fault current limiter[J].Transactions of China Electrotechnical Society,2010,25(1):70-76.
[7]叶新羽.饱和铁心型超导限流器研究进展[J].电工材料,2017(1):19-22.Ye Xinyu.Research progress of saturated iron-core superconducting fault current limiter[J].Electrical Engineering Materials,2017(1):19-22.
[8]文博,唐跃进,任丽,等.磁通耦合型限流器对电力系统暂态稳定性的影响[J].南方电网技术,2012,6(2):80-83.Wen Bo,Tang Yuejin,Ren Li,et al.The effect of flux-coupling fault current limiter on the transient stability of power system[J].Southern Power System Technology,2012,6(2):80-83.
[9]Ren Li,Tang Yuejin,Li Zhi,et al.Technoeconomic evaluation of a novel flux-coupling type superconducting fault current limiter[J].IEEE Transactions on Applied Superconductivity,2010,20(3):1242-1245.
[10]Chen Lei,Pan Hao,Deng Changhong,et al.Study on the application of a flux-coupling-type superconducting fault current limiter for descreasing HVdc commutation failure[J].Canadian Journal of Electrical and Computer Engineering,2015,38(1):10-19.
[11]魏繁荣,李慧,林湘宁,等.考虑TCSC型故障限流器动态过程的距离保护整定方法[J].中国电机工程学报,2017,37(8):2279-2289.Wei Fanrong,Li Hui,Lin Xiangning,et al.Distance protection setting strategy considering the dynamic impedance process of TCSC-FCL[J].Proceedings of the CSEE,2017,37(8):2279-2289.
[12]文博.磁通约束型限流器应用研究[D].武汉:华中科技大学,2012.
[2]陈柏超,魏亮亮,雷洋,等.饱和铁心型桥式故障限流器的性能参数设计与实验[J].电工技术学报,2017,32(13):185-193.Chen Baichao,Wei Liangliang,Lei Yang,et al.Performance paremeter design and experiment of the bridge-type saturated core fault current limiter[J].Transactions of China Electrotechnical Society,2017,32(13):185-193.
[3]刘路昕,张京业,戴少涛.电阻型超导限流器研发现状及所面临的技术瓶颈[J].低温与超导,2016,44(7):1-9.Liu Luxin,Zhang Jingye,Dai Shaotao.Present status of research and development and technical bottlenecks of resistive superconducting fault current limiter[J].Cryogenics and Superconductivity,2016,44(7):1-9.
[4]张志丰,肖立业,邱清泉,等.一种改进串联谐振型限流器[J].电工技术学报,2015,30(6):169-177.Zhang Zhifeng,Xiao Liye,Qiu Qingquan,et al.An improved series-resonant type fault current limiter[J].Transactions of China Electrotechnical Society,2015,30(6):169-177.
[5]张晚英,周有庆,赵伟明,等.新型磁屏蔽感应型超导故障限流器的研究[J].低温物理学报,2008,30(2):161-166.Zhang Wanying,Zhou Youqing,Zhao Weiming,et al.The simulating research on a novel magnetic shielding type of HTSCFCL[J].Chinese Journal of Low Temperature Physics,2008,30(2):161-166.
[6]张晚英,周有庆,赵伟明,等.改进桥路型高温超导故障限流器的实验研究[J].电工技术学报,2010,25(1):70-76.Zhang Wanying,Zhou Youqing,Zhao Weiming,et al.Experimental research on an improved rectifier type high temperature superconducting fault current limiter[J].Transactions of China Electrotechnical Society,2010,25(1):70-76.
[7]叶新羽.饱和铁心型超导限流器研究进展[J].电工材料,2017(1):19-22.Ye Xinyu.Research progress of saturated iron-core superconducting fault current limiter[J].Electrical Engineering Materials,2017(1):19-22.
[8]文博,唐跃进,任丽,等.磁通耦合型限流器对电力系统暂态稳定性的影响[J].南方电网技术,2012,6(2):80-83.Wen Bo,Tang Yuejin,Ren Li,et al.The effect of flux-coupling fault current limiter on the transient stability of power system[J].Southern Power System Technology,2012,6(2):80-83.
[9]Ren Li,Tang Yuejin,Li Zhi,et al.Technoeconomic evaluation of a novel flux-coupling type superconducting fault current limiter[J].IEEE Transactions on Applied Superconductivity,2010,20(3):1242-1245.
[10]Chen Lei,Pan Hao,Deng Changhong,et al.Study on the application of a flux-coupling-type superconducting fault current limiter for descreasing HVdc commutation failure[J].Canadian Journal of Electrical and Computer Engineering,2015,38(1):10-19.
[11]魏繁荣,李慧,林湘宁,等.考虑TCSC型故障限流器动态过程的距离保护整定方法[J].中国电机工程学报,2017,37(8):2279-2289.Wei Fanrong,Li Hui,Lin Xiangning,et al.Distance protection setting strategy considering the dynamic impedance process of TCSC-FCL[J].Proceedings of the CSEE,2017,37(8):2279-2289.
[12]文博.磁通约束型限流器应用研究[D].武汉:华中科技大学,2012.