A novel controller for a grid connected single phase PV system and its real time implementation

Author

Mishra, Shivakant ; Achary, B. Srikanta

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol. Delhi, New Delhi, India

fYear

2014

fDate

27-31 July 2014

Firstpage

1

Lastpage

5

Abstract

This paper presents a novel control philosophy for active and reactive power control of a single phase rooftop photovoltaic (PV) module connected to the grid based on a proportional along with sinusoidal signal integrator controller. For locking the inverter with the grid, Estimation-based enhanced PLL is employed and its performance has been validated over of a 3 kW PV module with single phase H-bridge inverter having maximum power point tracking (MPPT) capability. The controller has been designed in MATLAB/Simulink and its stability has been analyzed using the Direct Method of Lyapunov´s Stability criterion. By using the parallel processing technique of Opal-RT the real time simulation for the simulated model has been carried out under variable operating conditions like varying solar irradiation, load switching and other changes in the grid voltage or frequency.

Keywords

Lyapunov methods; invertors; maximum power point trackers; phase locked loops; photovoltaic power systems; power grids; power system stability; reactive power control; real-time systems; Lyapunov stability criterion; MATLAB-Simulink; MPPT; PLL; PV module; grid connected single phase PV system; load switching; maximum power point tracking; parallel processing; power 3 kW; reactive power control; real time implementation; real time simulation; single phase H-bridge inverter; single phase rooftop photovoltaic module; sinusoidal signal integrator controller; solar irradiation; Induction motors; Inverters; Mathematical model; Maximum power point trackers; Real-time systems; Vectors; Voltage control; Lyapnuv stability; Maximum power point tracking; Naslin polynomial; RTDS; Real time simulation; resonant controller;

fLanguage

English

Publisher

ieee

Conference_Titel

PES General Meeting | Conference & Exposition, 2014 IEEE

Conference_Location

National Harbor, MD

Type

conf

DOI

10.1109/PESGM.2014.6939836

Filename

6939836