摘要
为分析微电网受三相短路故障扰动后,电压稳定性随动态负荷参数变化的影响,本文设计了一种风光储微电网电压稳定性控制策略,分析不同条件下微电网暂态电压稳定性。由仿真结果可知,感应电动机参数变化对微电网暂态电压稳定性产生不同程度影响,其中增大感应电动机定子电阻、定子电抗、转子电抗、负载转矩、互感和负荷比例,微电网暂态电压稳定性减弱,而增大转子电阻和惯性时间常数,微电网暂态电压稳定性得到增强。
To analyze the influence of dynamic load parameters on the voltage stability of microgrid under disturbance of three-phase short-circuit fault, a voltage stability control strategy of wind,pv and storage microgrid is designed. The transient voltage stability of microgrid under different conditions is analyzed. From the simulation results, we can see that the change of induction motor parameters has different effects on the transient voltage stability of microgrid. When increases the stator resistance, stator reactance, rotor reactance, load torque, mutual inductance and load ratio of the induction motor, micro-grid transient voltage stability decreased, while increase the rotor resistance and inertia time constant, micro-grid transient voltage stability enhanced.
出处
《电气技术》
2018年第1期24-28,共5页
Electrical Engineering
关键词
电压稳定
风光储微电网
感应电动机参数
voltage stability
wind, pv and storage microgrid
the parameters of induction motor
