一种新型消弧线圈补偿装置的暂态性能仿真研究

Study of simulation of transient state performance of a new type of Petersen-coil in distribution systems

介绍了一种可控硅调节的消弧线圈电抗器装置 ,并着重研究适用于 6～ 6 6kV配电网的消弧线圈自动跟踪补偿装置中的可控硅调节电抗器的工作原理及其暂态性能。其中主要分析了突然投入理想正弦电源和接入电网中性点后电抗器本身的暂态响应及在稳定电源下工作点的调节 ,同时重点研究了在发生单相金属接地、单相高阻接地和间歇电弧接地情况下可控硅调节电抗器补偿容性电流的能力。通过实例进行EMTP仿真证明 ,新型可控硅调节的消弧线圈电抗器装置在适当的控制策略下 ,其电磁暂态过渡时间是满足要求的 。

This paper presents a new type of Petersen coil automatic compensation equipment, then focus on study of the principle and transient state performance of Thyristor controlled Reactor(TCR). It mainly contains the transient state response when switching to the ideal sinusoidal source and the network neutral point, the adjustment of the operational point under the steady working source, and the capability of the capacitive current compensation in circumstance of single phase metal grounding, single phase high-impedance grounding, or intermittent arc grounding. Then an example is given and validated by EMTP simulation. The results show that the presented design is reasonable and feasible.