Simulation Based Study of Power Quality Improvement And Speed Control In Induction Motor With Hybrid Renewable Source

Abstract

This paper presents modeling and simulation-based study of system consisting of a hybrid energy source based on solar photovoltaic and wind turbine energy sources, a traction load, specifically an induction motor and a shunt active power filter connected between sources and load to improve the power quality in MATLAB Simulink. To compensate the drawback of overheat of solar cell and dependency on single source, hence these two sources should be used together forming a hybrid renewable source with MPPT(P&O). This paper also comprises speed control of the induction motor using V/f method with comparative analysis of characteristics of the induction motor under controlled and uncontrolled speed. Speed control method involves switching devices such as IGBT which is a non-linear load. Due to introduction of non-linear load, there is an unfavorable effect on system efficiency and power quality, especially THD. In order to improve power quality, a FACTS based device SAPF is connected between source and load based on hysteresis controlling scheme, using STATCOM scheme. We commence the paper with details of solar and wind energy sources followed by the power quality improvement followed by characteristics of speed control of the induction motor.