摘要
针对解决电网电压稳定的调相机经济建设成本高,运维难的特点,研究抽水蓄能机组在电网中的调相功能,使其能够在电网某处发生故障时,补偿无功功率保证电压回归正常水平值。利用无功补偿电压稳定的基本原理,建立控制模型表达式,提出基于励磁调节和工况转换的联合调控方法。运用此方法在PSCAD仿真软件上搭建参数模型,通过波形图直观展示,模拟此方案对电网发生故障时电压的稳定效果,验证该方案原理与技术的正确性。
Aim at the problems of power grid voltage stability,including high economic construction cost and difficulties in operation as well as maintenance,the phase modulation function of pumped storage unit in the grid is studied,so that it can compensate reactive power and ensure that voltage returns to normal level when failure happening in the grid accidentally.Based on the basic principle of reactive power compensation voltage stability,the expression of control model is established,and a joint regulation method based on excitation regulation and working condition conversion is proposed.This method is used to build a parameter model on PSCAD simulation software Waveform diagrams are used to visualize stability effect of the scheme on the voltage in case of power grid failure,and further verifying the correctness of the principle and technology of this scheme.
作者
罗胤
赵俊杰
王坤
吴若凡
LUO Yin;ZHAO Jun-jie;WANG Kun;WU Ruo-fan(State Grid Henan Tianchi Pumped Storage Co.,Ltd.,Nanyang,473000,China;School of Electrical and Electronic Engineering,North China Electric Power University,Beijing,102206,China)
出处
《水电站机电技术》
2022年第4期25-28,145,共5页
Mechanical & Electrical Technique of Hydropower Station
关键词
电压稳定
抽水蓄能机组
无功补偿
励磁调节
工况转换
voltage stability
pumped storage unit
reactive power compensation
excitation regulation
working condition conversion
