基于PSASP的低压用电设备无功动态补偿系统设计

Design of reactive dynamic compensation system for low voltage electrical equipment based on PSASP

为了解决低压用电设备功率因数与实际结果不一致,导致补偿误差较大的问题,基于PSASP设计一种新的低压用电设备无功动态补偿系统。分别设计电压/电流电路、保护电路和采集电路,计算限流电阻和输入电阻,分析电压值,利用六路串口进行补偿。计算无功功率和电能因数,对数据进行调整,将比较补偿、积分补偿、微分补偿三者相结合得出PASAP控制结果,获得动态功率因数,实现低压用电设备无功动态补偿。实验结果表明,该系统功率因数与实际结果基本一致,补偿误差低于0.01%。

In order to solve the problem that the power factor of low⁃voltage electrical equipment is inconsistent with the actual result,which leads to large compensation error,a new reactive dynamic compensation system for lowvoltage electrical equipment is designed based on PSASP.The voltage/current circuit,protection circuit and acquisition circuit are designed respectively,the current limiting resistance and input resistance are calculated,the voltage value is analyzed,and six serial ports are used for compensation.Calculate reactive power and power factor,adjust data,and combine comparative compensation,integral compensation and differential compensation to obtain PASAP control results,so as to obtain dynamic power factor and realize dynamic reactive compensation of low⁃voltage electrical equipment.The experimental results show that the power factor of the system is basically consistent with the actual results,and the compensation error is less than 0.01%.