3[kw]급 태양전지 가상구현 시스템의 병렬운전

Many solar cell array need to be connected by series or parallel to extract the high power, Especially, during parallel operation to reduce circulation current the individual converter has to share and control the load current. Generally, current Sharing(CS) can be implemented using droop and active current sharing method In this paper, one 3[KW] PWM converter was replaced as one 3[KW] solar cell array(3 parallels, each parallel has twenty single modules), two 3[KW] solar cell array is paralleled to generate 6[KW] power, Also each converter used voltage-current controller and Automatic MSCPM(Master-Slave Current-programming Method) for current sharing(AS)