静止无功补偿装置最优非线性比例积分电压控制方法

Optimal Nonlinear Proportional Integral Voltage Control Method for Static Reactive Power Compensation Device

现有最优非线性比例积分电压控制方法电压畸变程度高、超调明显,因此研究静止无功补偿装置最优非线性比例积分电压控制方法。划分电网的无功负荷分布状态,确定静止无功补偿装置补偿位置,计算无功补偿后的网损消耗值,获得无功补偿容量。按照补偿容量大小进行权重分配,得到最终补偿的总容量。运用文化粒子群优化(Cultural Partical Swarm Optimization,CPSO)算法计算不同粒子的目标函数值,获得寻优结果。设置装置控制的反应时间,防止超调。对不同负荷状态中投入静止无功补偿装置改变信息增益,精准控制跟踪变量,从而完成负荷补偿控制。实验结果表明,在时间间隔相同时,实验组的电压不发生畸变,波形比较平滑,无明显超调,动态控制较为良好,提升了静止无功补偿装置投入后的稳定性能。

Due to the high degree of voltage distortion and obvious overshoot of existing optimal nonlinear proportional integral voltage control methods,the optimal nonlinear proportional integral voltage control method for static var compensation devices is studied.Divide the reactive load distribution status of the power grid,determine the compensation position of the static reactive power compensation device,calculate the network loss consumption value after reactive power compensation,and obtain the reactive power compensation capacity.Assign weights based on the compensation capacity to obtain the final total compensation capacity;calculate the objective function values of different particles using Cultural Partical Swarm Optimization(CPSO)to obtain optimization results.Set the reaction time for device control to prevent overshoot.Input static reactive power compensation devices in different load states to change information gain,accurately control tracking variables,and complete load compensation control.The experimental results show that at the same time interval,the voltage of the experimental group does not experience distortion,the waveform is relatively smooth,there is no obvious overshoot,and the dynamic control is good,which improves the stable performance of the static reactive power compensation device after it is put into operation.