Grid Integration of Renewable Energy Resources with Power Quality Improvement of VSI for Induction Motor Drive

Abstract

For the past few year renewable energy resources, without challenging environmental concerns has lead to significant increase in global power generation. The quality of power can be measured by using parameters such as voltage sag, harmonic and power factor. The inverter is controlled to perform as a multi-function device by incorporating active power filter functionality. A grid interfacing inverter to improve the quality of power at three phase distributed generating systems has been presented, the current harmonics and nonlinear load connected to the point of common coupling. Adaptable Voltage Source Inverter (AVSI), a single VSI is used in order to address both current as well as voltage PQ issues while injecting power from DERs to utility. The grid connected with renewable energy source has the capability of injecting active power to the grid, reduces source current distortion and reactive power compensation. The AVSI is termed adaptable for it can be operated in shunt or in series with respect to load, depending on the requirement. This paper proposes a Performance characteristics of three-phase asynchronous motor are analyzed with renewable energy sources is connected. Simulations have been carried out in Matlab–Simulink to study the performance of the proposed.