Design and Optimization of Heat Sink in Solar Converter Containing of H-Bridge Single Phase Inverter and Boost Converter

: In this paper, the average power losses in a nonsynchronous boost converter are carefully estimated and calculated at three continuous, discontinuous and forced continuous conductive mode and average power losses of the H-bridge single phase inverter is estimated by sinusoidal pulse width modulation method. Then by a general approach, thermal model and Heat transfer equations are discussed in a natural convection and forced convection with parallel fins and these two methods are compared together. In order to increase thermal performance, thermal model change to electrical equivalent circuit and heat sink to air thermal resistance optimized, all of geometric parameters determined by a constrained particle swarm evolutionary algorithm among several designs. In order to optimize design of cooling and increase reliability of the components, the suitable arrangement examined by a mathematical and innovative approach. In this method which has its own characteristics in terms of accuracy, compatibility and stability, at first, temperature distributed on heat sink baseplate and then decrease hot spots temperature by optimization algorithm above mentioned. In forced convection compared to free convection cooling system, converter temperature and efficiency decrease respectively 46 Celsius degrees and 0.37 percent and forced convection cooling system volume tripled than free convection.