Abstract
Active power decoupling (APD) technique minimizes twice the supply frequency power ripple on DC side. Consequently, the size of DC-link capacitor will be reduced greatly. So instead of using bulky, less reliable electrolytic capacitor, choice of film capacitor is obvious. Furthermore, power density of the converter will also increase. This paper presents a simple control scheme for APD technique in single-phase PWM rectifiers. Presented control scheme generates twice the supply frequency reference current to be taken by boost-type decoupling circuit with the help of phase-locked loop (PLL), digital filter, and simple proportional controller which makes the control system faster and robust. Simulation and processor-in-the-loop (PIL) studies confirm that it provides efficient decoupling performance with power quality consideration such as unity power factor operation and THD of grid-side current within permissible limits.
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Jain, P., Maurya, R. (2021). Control Scheme for Active Power Decoupling in PWM Converter with Increased Power Density. In: Mohapatro, S., Kimball, J. (eds) Proceedings of Symposium on Power Electronic and Renewable Energy Systems Control. Lecture Notes in Electrical Engineering, vol 616. Springer, Singapore. https://doi.org/10.1007/978-981-16-1978-6_8
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DOI: https://doi.org/10.1007/978-981-16-1978-6_8
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