Active Power Control of DPC Based Operation of Three Phase Inverter Under Stand-Alone Mode

Abstract

AbstractThis paper presents the successful application of direct power control (DPC) based algorithm in the DC–AC conversion of a standalone system. This algorithm is successful at the smooth variation of active power in the standalone mode of operation of renewable power generating system. Thus, it can supply the variable nature of power demand. The algorithm also successfully rejects the variation of DC voltage at the input of the inverter. The power output of the inverter in this standalone mode is successfully maintained during this condition. So, it can be said that the DPC in the standalone mode, is flexible enough to adopt the fluctuation of the DC voltage. It has also been seen that the inverter operating with DPC-based control can deliver constant power at the load end even under fluctuating load impedance. The claims stated, in theory, are successfully justified in both simulation and real-time environment.Keywords: DPCstand-alone modeDC to AC conversionreal-time operation Additional informationNotes on contributorsDibyendu SenDibyendu Sen is working towards Ph.D. degree with the Department of Electrical Engineering, National Institute of Technology at Durgapur, Durgapur, India. His current research interests include power electronics and its applications and renewable energy.Sunil KumarSunil Kumar received the M.tech degree from the Department of Electrical Engineering, National Institute of Technology at Durgapur, Durgapur, India. He likes to search for facts and find solutions to power electronics and machine drives problems.Tapas Kumar SahaTapas Kumar Saha received the Ph.D. degree from the Electrical Engineering Department, IIT Kharagpur, Kharagpur, India, in 2009. He works as a Professor with the Department of Electrical Engineering, National Institute of Technology at Durgapur, Durgapur, India, and his current research interests include machine drives, power electronics, renewable energy, and the grid integrated distributed generations.Jayati DeyJayati Dey received the Doctor of Philosophy (Engg.) degree in the control system from the Electrical Engineering Department, IIT Kharagpur, Kharagpur, India in 2007. She works as an Assistant Professor with the Department of Electrical Engineering, National Institute of Technology at Durgapur, Durgapur, India. Her current research interests include periodic compensation, switching power converters, robotics, and mechatronics with a special interest in robust control.