Efficient Single-Stage Bridgeless AC to DC Converter Using Grey Wolf Optimization  

作　　者：Prema Kandasamy K.Prem Kumar 

机构地区：[1]Department of Electrical and Electronics Engineering,Thangavelu Engineering College,Chennai-600097,India [2]Department of Electrical and Electronics Engineering,Rajalakshmi Engineering College,Chennai-602105,India

出　　处：《Computer Systems Science & Engineering》2022年第11期487-499,共13页计算机系统科学与工程（英文）

摘　　要：Bridgeless single-stage converters are used for efficient(alternative current)AC-(direct current)DC conversion.These converters control generators,likeelectromagnetic meso-and micro-scale generators with low voltage.Power factorcorrection helps increase the factor of the power supply.The main advantage ofthe power factor is it shapes the input current for increasing the real power of theAC supply.In this paper,a two-switch bridgeless rectifier topology is designedwith a power factor correction capability.For the proposed converter topologyto have good power quality parameters,the closed loop scheme,which uses thegrey wolf optimization(GWO)algorithm,is implemented.The successes ofGWO encourage this research to implement GWO in the topology.The performanceof the proposed topology is analyzed under different load conditions.Simulation is carried out using the MATLAB/Simulink environment,and theresults are compared with those of conventional(proportional integral derivative)PID and(particle swarm optimization)PSO controllers.To validate the simulation results,a 350-W hardware prototype is implemented,and the voltage ripple,efficiency,and power factor under different load conditions are analyzed and tabulated.The comparative study clearly indicates that the proposed convertertopology with a closed loop control scheme using the GWO algorithm improves the power factor to 0.9732 and reduces the voltage ripple to 0.12%with a conversion efficiency of 98.25%.

关 键 词：Bridgeless AC converter DC converter GWO controller power factor 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]