Model Predictive PWM for Hybrid Active Power Filter
نویسندگان
چکیده
Model predictive pulse-width modulation (MP-PWM) is applied to hybrid active power filter (HAPF) in this paper. The configuration, control, carried-based PWM (CPWM) and filtering performance of HAPF are described in this paper. To realize the MP-PWM, the discrete-time model of the inverter is presented and a cost function is built. The flow chart of realizing the MPPWM is presented. The PWM is assumed as a sampling-hold circuit with an equivalent control period to compare MP-PWM and CPWM. To compare the equivalent control period of PWM, an inverter simulation with R-L-C load is carried out. The inverter simulation results verify that the equivalent control period of MP-PWM is smaller than the CPWM, while the average switching frequency is lower than the CPWM. The simulation results of HAPF with MP-PWM and CPWM show that the filter performance of HAPF with the MP-PWM is better. An experiment study of HAPF with MP-PWM has been performed to validate the MP-PWM for HAPF.
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