Abstract
Direct Power based Sliding Mode Control of AC-DC Converter with Reduced THD
Highlights
AC-DC converters find a wide range of application in our day-to-day life in homes in the form of chargers, LED based lighting, etc
Direct Power based sliding mode Control (DPSMC) overcomes the above difficulties of traditional Sliding mode control (SMC) by generating the reference current signal iRef by the outer loop Direct power based Controller (DPC) based on input – output power balance providing a better performance under a wide range of operating conditions
The DPSMC proposed, aims at achieving unity power factor by forcing the line current to follow the reference current signal iRef that is in phase with line voltage using the inner loop SMC current controller, with the desired reference current generated by the outer Direct Power Based Control (DPC), based on disturbances
Summary
AC-DC converters find a wide range of application in our day-to-day life in homes in the form of chargers, LED based lighting, etc. [21] & [22] have proposed the feasibility of applying DPC to switched mode three phase power converters by using an outer PI controller and an inner Fuzzy based switching state selector to select the switching states of the converter. All these DPC methods proposed in the literature aim at the regulation and control of three phase converter circuits and a very little emphasis is given to the control of single-phase systems. Simulation results are justified by the hardware experimentation results of the proposed control method in section V followed by the conclusion
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