公开(公告)号：US20040264225A1

公开(公告)日：2004-12-30

申请号：US10836121

申请日：2004-04-30

申请人： Ballard Power Systems Corporation

发明人： Vijay Bhavaraju ,  Kerry E. Grand ,  Anil Tuladhar

IPC分类号： H02M007/48

CPC分类号： G05F1/67 ,  Y02E10/58

摘要： The maximum power point (MPP) of a photovoltaic array that can be coupled to power inverter is determined. A capacitor on a DC-bus side of the inverter is used as a load from which I-V characteristics of the photovoltaic array can be generated. The photovoltaic array is connected to the capacitor, which has been previously discharged by a bleed down resistor. Short circuit current, open circuit voltage, and values of current and voltage as the capacitor charges are determined and used to generate I-V characteristics of the photovoltaic array. From the I-V characteristics, the MPP can be calculated.

摘要翻译： 确定可耦合到电力逆变器的光伏阵列的最大功率点（MPP）。 逆变器的直流母线侧的电容器被用作能够产生光伏阵列的I-V特性的负载。 光伏阵列连接到先前由泄放电阻器放电的电容器。 短路电流，开路电压以及作为电容器电荷的电流和电压值被确定并用于产生光伏阵列的I-V特性。 从I-V特性可以计算MPP。