![Sample our Engineering & Technology journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5933/TOC-Subject-Sample-2021-Engineering-Tech.jpg"})
ABSTRACT
In the proposed work, a new control is used with inner loop as a current control and the outer loop as a voltage control of a solar photovoltaic (PV) array-fed single-phase grid interfaced system, using a voltage-source converter (VSC). It deals with the power quality mitigation, which includes power factor correction, harmonic mitigation in abnormal conditions such as grid voltage sag and swell and irradiation changes. The PI (Proportional–Integral) controller is used as an inner current loop control for reference and sensed DC link voltage balancing and to generate the command for the harmonics accurately, which generates the reference current. The PI controller is used for generating reference current and PR (Proportional-Resonant) is used for generating voltage reference, which, in turn, produces modulating signal within the limit of carrier wave. A comparison between reference voltage and carrier gives unipolar switching, attaining three levels for the VSC. Here, the maximum power point tracking (MPPT) is achieved by an incremental conductance (INC) method. Experimental performance is studied at dynamic abnormal conditions such as voltage sag and voltage swell in order to investigate the total harmonic distortion (THD) of the grid current and point of common coupling (PCC) voltage, which are observed within the IEEE-519 standard.
Additional information
Funding
Notes on contributors
Nidhi Mishra
Nidhi Mishra (Member, IEEE) recieved her MTech from BIT Mesra, Ranchi, Jharkhand, in the Department of Electrical Engineering in 2012. She was lecturer at NIT, Hamirpur for a year during 2013. She completed her PhD from IIT Delhi in the Department of Electrical Engineering in September 2020. Presently, she is working in Aligarh Muslim University for collaborated project of UNSW, Canberra, Australia. She also served as session chair in international conferences. Her areas of interest include multilevel converters, grid interaction of renewable energy systems and power quality improvement in grid-tied systems.
Piyush Kant
Piyush Kant (M’16) was born in Gorakhpur, Uttar Pradesh, India, in 1990. He received his BTech degree in electrical engineering from National Institute of Technology Agartala, Tripura, India, in 2012, and the MTech Degree in power electronics and drives from Motilal Nehru National Institute of Technology Allahabad, Uttar Pradesh, India in 2015. He is currently pursing PhD degree in Indian Institute of Technology Delhi (IITD), New Delhi, India. His areas of interest include multi-winding transformers, multi-pulse AC-DC converters, multi-level inverters, modulation techniques, induction motor drives, medium voltage drive and power quality. He was the 3recipient of the Best Paper Award at IEEE ICE3 2020. Email: [email protected]
Bhim Singh
Bhim Singh (SM′ 99, F′10) received his BE (Electrical) from the University of Roorkee (Now IIT Roorkee), India, in 1977 and his MTech (Power Apparatus and Systems) and PhD from the Indian Institute of Technology Delhi, India, in 1979 and 1983, respectively. In 1983, he joined the Department of Electrical Engineering, University of Roorkee, as lecturer. He later became reader there in 1988. In December 1990, he joined the Department of Electrical Engineering, IIT Delhi, India, as assistant professor, where he became associate professor in 1994 and professor in 1997. He was an ABB chair professor from September 2007 to September 2012. He was also a CEA chair professor from October 2012 to September 2017. He was head of the Department of Electrical Engineering at IIT Delhi from July 2014 to August 2016. He was the dean, Academics at IIT Delhi from August 2016 to August 2019. He has been JC Bose Fellow of DST, Government of India since December 2015. He has been CEA chair professor since January 2019. Professor Singh has guided 84 PhD dissertations and 168 ME/MTech/MS (R) theses. He has filed 58 patents. He has executed more than eighty five sponsored and consultancy projects. He has co-authored a text book on power quality: Power Quality Problems and Mitigation Techniques published by John Wiley & Sons Ltd. 2015. His areas of interest include solar PV grid interface systems, microgrids, power quality monitoring and mitigation, solar PV water pumping systems, EVs and improved power quality AC–DC converters. Email: [email protected]