Novel hybrid nonlinear control method for three-phase PWM rectifier

作者：Shuai, Ding-Xin^*; Xie, Yun-Xiang; Wang, Xiao-Gang

来源：Proceedings of the CSEE, 2009, 29(12): 30-35.

• Constant switching frequency
• Input and outputs
• Non-linear control methods
• Nonlinear
• Rectifier
• Space vector pulse width modulation
• Three-phase PWM rectifiers
• Zero steady state error

The performance of the three-phase PWM rectifier based on conventional single control method couldn't meet the increasing practical requirement. A novel hybrid nonlinear control method was proposed. The control method combining the merits of sliding mode control, input and output linearization method, and space vector pulse width modulation (SVPWM) control method. Using sliding mode control method, the outer voltage control loop was set up. The inner current loop is based on the input and output linearization control method. The control signals are modulated by SVPWM technology. The closed-loop controlled system has the features of global stability, fast tracking of DC-bus voltage command with zero steady-state error, strong robust to the disturbance of load and system parameter uncertainties, decoupled control of d and q current loops, sinusoidal current wave, lower harmonic distortion, unity power factor, high maximum output voltage and constant switching frequency. The validity and superiority of the proposed control scheme were verified by digital simulation and experimental results.

• 出版日期2009-4-25
• 单位华南理工大学