Journal of Electrical Engineering : Volume 18 / 2018 - Edition : 3

A SINGLE STAGE HYBRID ELECTRIC POWER GENERATION USING DUAL LEG DC/AC CONVERTER

Authors:
P.M.VENKATESH
Dr.R.VELAVAN
Domain:
power electronics
Abstract:
In this research article P&O based Maximum Power Point Tracking (MPPT) technique and Sliding Variable Structure Control (SVSC) implemented to control the MPPT battery charger and Dual Leg DC/AC Converter for Hybrid Electric power generation is presented. A fluctuated low dc voltage of photovoltaic array was regulated by MPPT converter and the output of Wind is connected to the DC bus. It is boosted and inverted into a 220Vrms ac voltage at a fundamental frequency in a single stage. Generally the sliding mode control and feedback control techniques were widely used for controlling the output of the converters but it involves more complex control theory. The main objective is to reduce the more power stages for converting dc power in to ac power and synchronizing two different power sources. Hence the proposed control technique is used to keep the constant output voltage with inconsistent loads. Therefore the proposed hybrid electric power generation system has more desirable features such as single power conversion stage and minimum number of switches. The Total Harmonic Distortion (THD) generated by the proposed configuration is quite reasonable. The
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