摘要
研制了用于光伏系统(PhotoVoltaicSyatem,简称PVS)的DC/DC模块化变换器。为了减小体积,降低成本,增加电路效益,在变换器的控制电路中省去了辅助电源。另外,采用电阻替代霍尔传感器检测电流信号。在PV模快不发电的情况下,能减少电路的能源损耗。当照度、温度随阳光强弱改变时,利用PIC控制器,可实现最大功率追踪(MaximumPowerPointTracking,简称MPPT)。
In this paper, a DC/DC modular converter for photovoltaic system is studied and implemented.In order to reduce the volume and cost,the converter doesn＇t need any auxiliary power in control circuit.The converter uses a resistor to sense current signal instead of Hall sensor in addition.The reduced losses were estimated when the PV module didn＇t generate power.As intensity of illumination and temperature varied with sunlight,the maximum power point of PV module were traced based on PIC microprocessor.
出处
《电力电子技术》
CSCD
北大核心
2006年第6期40-42,共3页
Power Electronics
基金
内政部建筑研究所赞助(094301070000G3058)
行政院国家科学委员会赞助(94-2623-7-006-008-ET)
