变电站无功电压综合调节的模糊控制研究

研究了一种通过补偿电容器组和有载调压的主变压器相配合进行联合控制系统无功电压的方法。在推导出大型变电站的二次母线装设可投切的补偿电容器组和有载调压的主变压器相配合进行联合控制的模型基础上,提出了一种模糊控制方法。该系统将电压偏差和功率因数偏差作为模糊输入变量进行模糊化,经过模糊推理,并通过解模糊化运算给出控制信号作用于有载调压变压器和电容器组。结合实际电站系统参数对该系统进行仿真试验,仿真结果表明该控制系统稳定可靠,控制效果好。

Fuzzy control study of comprehensive adjustment for substation reactive voltage

This paper presents a fuzzy control method based on the combination control of the compensator capacitor banks and the on load tap changer(OLTC) main transformer furnished in large-scale electric substation.It establishes the model with reactive power and voltage parameters based on the combination control of the compensator capacitor banks and the OLTC main transformer furnished in large-scale electric substation to test the fuzzy control system.In the control system,the change of voltage and power-factor are fuzzified as the input variable and the OLTC and the capacitor banks are controlled by the output signal which is calculated after fuzzy inference and defuzzifying.The result proves its stability and validity by simulation which combined with the realized substation parameters. This project is supported by Key Project of National Natural Science Foundation of China(No.60234010).