Advanced Grid Connected Solar Variable Speed Drive for Three Phase Asynchronous Motors.

Document Type : Research Studies

Authors

1 Teaching Assistant in the Electrical Engineering Department, Suez Canal University, Ismailia, Egypt.

2 Associate Professor in the Electrical Engineering Department, Suez Canal University, Ismailia, Egypt.

3 Assistant Professor in the Electrical Engineering Department, Suez Canal University, Ismailia, Egypt.

Abstract

In this work, solar energy is used efficiently by running photovoltaic (PV) panels at their maximum power point (MPP) to power an asynchronous motor. Such methods are extremely beneficial in situations where other sources, such as grid electricity and other renewable sources, are limited. These asynchronous motors are more cost effective since they require less maintenance and operation cost. The primary elements of solar-powered Asynchronous motor system are the solar panel, control board, and motor set.  The suggested system utilizes Asynchronous motor drive to provide power from solar energy to a motor by converting the DC electric power supplied by a PV array to AC electric power using an inverter. A solar panel with a power producing capacity of 5 kW is employed in the proposed work. The asynchronous motor utilized has a power rating of 4.5 HP. Three control techniques are used in this research Carrier based Pulse Width Modulation (PWM), Field Oriented Control (FOC), and Maximum Power Point Tracking (MPPT). This paper discusses computational demonstrating technique of MPPT like Incremental Conductance (Inc.) with Field Oriented Control Drive and compare it to the existing model of Perturb & observe with Field Oriented Technique. The control techniques are demonstrated by using Matlab/Simulink.  The simulation results show that the controllers based on Incremental Conductance methods with Field Oriented Control are more effective for each performance index because they have a smaller overshoot value, a shorter rising time, and a high dynamic response.

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