| Title |
Sinusoidal Tracking Control of Voltage Source PWM Converter by Input Current Estimation |
| Authors |
Tae-Won Heo ; Jee-Ho Park ; Dong-Ryul Shin ; Choon-Sam Kim ; Jung-In Woo |
| Abstract |
This paper presents the sinusoidal tracking controller in order to eliminate the steady state control error and to improve the transient characteristics for input current in voltage source PWM converter with input current estimation. The estimation method of input current values and configuration of controller are described. DC output voltage is controlled by PI controller, and sinusoidal tracking current controller which tracks directly AC input current is used as input current controller. The sinusoidal tracking current controller can be used without any coordinate transformation algorithms. It is proved that the steady state deviation of input current reduces to zero and the proposed control system is not affected by input voltage from transfer functions of input current control system.. The validity of proposed scheme is verified by simulations and experimental results for load resister and input voltage variation. |