电压源AC/DC变流器系统神经网络控制的研究

Study on the Neural-network Control Applied in the System of Voltage Source AC/DC Converter

以三相电压源变流器为控制对象,采用神经网络控制代替滞环电流控制,进行MATLAB环境下的系统闭环仿真.研究表明系统在理想情况下能实现单位功率因数而且在某相电流误差信号丢失的非理想情况下仍然能实现单位功率因数控制.

In this paper, neural-network control,which replaces hysteresis current control,is applied in a three-phase voltage source AC/DC converter. The result of simulation for the closed-loop system in the MATLAB illustrates that the system can provide unity power factor not only in ideal condition but also in the case of errors in missing of some current.