Solar PV Emulator based Isolated Converter: Design & Simulation

Abstract

The photovoltaic emulators (PVE) aims to mimic the behavior of PV panels. The objective of this work is to design a photovoltaic emulator based on a DC-DC push-pull converter and ANN. The latter used to emulate a PV model in order to generate a current reference of PVE. Two control techniques were proposed to control PVE based ANN, the PID controller proposed as a first control strategy, and as second control strategy we proposed LQR controller. In addition, the add of the current observer, by using only a voltage sensor, make our proposed PVE more accurate, less expensive to produce, and more reliable than sensed signals. The results of the comparison between the PID and proposed LQR control strategy show the effectiveness of the LQR strategy in terms of steady state and response time of the PV panel emulator.