A double input SMV controlled DC/DC buck-boost converter for solar PV/wind energy sources

A sliding mode voltage control (SMVC) based double input buck-boost converter for low voltage solar/wind applications, is proposed in this paper. The proposed double input converter is suitable to maintain output voltage constant at DC bus, irrespective of interruption in availability of solar/wind sources individually or simultaneously both due to climatic conditions rather than individual converter for each source. Controller used is PID-type-PWM based SMVC which is one of the robust controllers and suitable for wind/solar power applications. Modes of operation of converter are described in detail and simulation experimental results are presented.