三相Boost型PWM整流器输出误差无源性控制

Output Error Passivity Control of Three-Phase Boost-Type PWM Rectifiers

提出将无源性控制与频域理论相结合来控制三相Boost型PWM整流器,得到无源性电流控制器、输出误差补偿控制器和闭环系统的频域模型。仿真结果表明,在电路参数变化和负载扰动时,无源性电流控制器和输出误差补偿控制器可以实现输入单位功率因数和输出直流电压恒定,采用频域方法设计参数的输出误差补偿控制器提高了系统的动态性能。

Three-phase Boost-type PWM rectifier by passivity-based control combined with frequency domain theory is proposed in the paper, and passivity current controller, output-error compensated controller and frequency domain model of closed-loop system are obtained. Simulation results show that during the circuit parameter variation and load disturbance, applying passivity current controller and output-error compensated controller can make power factor unity at input-side and DC voltage constant at output-side, and the output error compensated controller using parameter designed by frequency domain method improves system dynamic performance.