Title: Performance investigation of transformer-less DSTATCOM in grid-connected solar-PV distributed generation system with insolation variation

Authors: Meenakshi Rastogi; Aijaz Ahmad; Abdul Hamid Bhat

Addresses: Department of Electrical Engineering, National Institute of Technology Srinagar, Srinagar, Jammu and Kashmir, India ' Department of Electrical Engineering, National Institute of Technology Srinagar, Srinagar, Jammu and Kashmir, India ' Department of Electrical Engineering, National Institute of Technology Srinagar, Srinagar, Jammu and Kashmir, India

Abstract: This paper addresses the application of distribution static compensator (DSTATCOM) in a grid-connected solar PV distributed generation system when the insolation variation takes place with 3-phase, 3-wire load system. When DSTATCOM is integrated with a grid-connected solar-PV system, it injects reactive power with real power simultaneously and contributes to the mitigation of power quality problems with different loading conditions. DSTATCOM results in power factor correction and zero voltage regulation of the distribution system. DSTATCOM also contributes to maintaining the power system stability, maintaining the DC-link voltage constant and helps the solar-PV system to work smoothly. The simulation model using MATLAB/SIMULINK software has been designed and results have been presented to demonstrate the performance evaluation of DSTATCOM in a solar-PV distributed generation system with variation in solar insolation. Experimental results using digital real-time simulation have been presented to validate the correctness and effectiveness of the proposed system and its control.

Keywords: DSTATCOM; sinusoidal pulse width modulation; SPWM; synchronous reference frame theory; SRF; solar-PV panel; distributed generation system; power factor correction; PFC; zero voltage regulation; ZVR; solar insolation; digital real-time simulation.

DOI: 10.1504/IJPELEC.2023.128865

International Journal of Power Electronics, 2023 Vol.17 No.2, pp.166 - 196

Received: 27 Dec 2020
Accepted: 28 Jun 2021
Published online: 08 Feb 2023 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article