高压电器2012，Vol.48Issue(7)：31-37,7.
合成回路用高压电抗器过电压分析及电场仿真
Overvoltage Analysis and Electric Field Simulation of High Voltage Reactor in Synthetic Circuit
杜炜 1沈琪 2汲胜昌 2王培人 1姚斯立1
作者信息
- 1. 西安高压电器研究院有限责任公司,西安 710077
- 2. 西安交通大学电力设备电气绝缘国家重点实验室,西安 710049
- 折叠
摘要
Abstract
The high voltage reactor provided the recovery voltage after the circuit breaker cutting off the current in the synthetic circuit. With the instantaneous variations of circuit parameters, the oscillating voltage and current waveform between the high voltage reactor and capacitor element would threat the safe operation of synthetic circuit. In the paper, according to the synthetic circuit and running condition, the waveform could be simulated with PSCAD. The voltage peak was used to be the boundary condition to calculate the elecrric field of high voltage reactor. Then the suitable measure was put forward to improve the electric field distribution. The results showed that the oscillating voltage and current waveform appeared after considering the stray capacitance and the voltage peak of high voltage reactor could be used as the boundary condition. With the results of electric field simulation, the electric field distribution was related to the structural arrangement and voltage to ground. The maximum electric field intensity appeared on the surface of grading ring with the maximum voltage to ground. Through selecting the suitable size, the electric field intensity of grading ring would be decreased significantly.关键词
高压电抗器/电路仿真/电场强度Key words
high voltage reactor/ circuit simulation/ electric field intensity分类
信息技术与安全科学引用本文复制引用
杜炜,沈琪,汲胜昌,王培人,姚斯立..合成回路用高压电抗器过电压分析及电场仿真[J].高压电器,2012,48(7):31-37,7.
