论文标题
使用MTDC网络中电流排放的固有振荡的故障位置
Fault Location Using the Natural Frequency of Oscillation of Current Discharge in MTdc Networks
论文作者
论文摘要
本文使用单端测量讨论了一种新型的故障位置方法。故障位置考虑了电路参数的自然耗散。本文建立了传输线电流振荡的阻尼固有频率与故障位置之间的关系。混合DC断路器（DCCB）中断故障电流，在没有任何驱动电压源的情况下，线电流会减弱。线电容以特定的振荡和衰减速率以特定的频率排放到断层中。利用此信息，可以预测多末端直流电（MTDC）网络中的故障位置。 MTDC的三个末端径向模型用于使用电源系统计算机辅助设计（PSCAD）/电磁瞬变（包括DC（EMTDC））的拟议方法进行性能评估。
This paper discusses a novel fault location approach using single ended measurement. The natural dissipation of the circuit parameters are considered for fault location. A relationship between the damped natural frequency of oscillation of the transmission line current and fault location is established in this paper. The hybrid dc circuit breaker (dcCB) interrupts the fault current and the line current attenuates under the absence of any driving voltage source. The line capacitance discharges into the fault at a specific frequency of oscillation and rate of attenuation. Utilizing this information, the fault location in a multi-terminal direct current (MTdc) network can be predicted. A three terminal radial model of a MTdc is used for performance evaluation of the proposed method using Power System Computer Aided Design (PSCAD)/Electromagnetic Transients including dc (EMTdc).
