摘要
针对配电网负荷波动较大,电压质量亟待优化的问题,提出了在配电网中采取自动无功补偿装置的方案。利用电容容抗可以补偿输电线路感抗这一特性,在配电线路中采用加入可控串联电容补偿的方法。在负荷波动情况下,通过实时采样和检测负荷侧电压,控制晶闸管的触发角,调节电容补偿量,从而达到平滑调节和稳定负荷侧电压的目的。并利用仿真软件PSCAD/EMTDC搭建了仿真模型,仿真结果表明,所提方案在负荷波动情况下,能够自动快速地调节电压,实现了优化配电网电压的目的。
For the load fluctuations in distribution power system and the problem of vohage quality urgent optimization, the program of automatic reactive power compensation device is put forward in the distribution power system. In this paper, based on the compensation for transmission line inductive reactance by capacitive reactance, thyristor controllable series compensation is added in distribution lines. In the case of load fluctuations, through controlling the thyristor trigger, sampling and testing the load side voltage in real-time, the thyristor firing angle can be calculated, and then the compensation capacitor is adjusted to stabilize the load-side voltage, so as to smoothing the load side voltage regulation. Simulation model is built by using simulation software PSCAD / EMTDC, and simulation results show that in the case of load fluctuations, the proposed program can automatically and quickly adjust the voltage to achieve the purpose of the voltage optimization of the distribution power system.
出处
《陕西电力》
2011年第10期69-72,共4页
Shanxi Electric Power
关键词
可控串联电容补偿
配电网
电压优化
晶闸管
PSCAD/EMTDC
thyristor controlled series compensation
distribution power system
voltage optimization
thyristor
PSCAD / EMTDC
作者简介
戴小庞（1971-），男，广东河源人，工程师，从事输电网、配电网生产运行管理方面的工作。
