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    • 8. 发明申请
    • MAXIMUM POWER SENSOR FOR PHOTOVOLTAIC SYSTEM
    • 用于光伏系统的最大功率传感器
    • WO2003090002A1
    • 2003-10-30
    • PCT/US2002/025872
    • 2002-08-13
    • ASTROPOWER, INC.SCHRIPSEMA, JasonJOHNSTON, Michael, AntonyHOLMES, Alysha
    • SCHRIPSEMA, JasonJOHNSTON, Michael, AntonyHOLMES, Alysha
    • G05F1/40
    • G05F1/67Y02E10/58Y10S323/906
    • A maximum power level sensor and method for reliably providing instantaneous estimates of maximum power level for a photovoltaic system including one or more photovoltaic cells under prevailing conditions of irradiance, array temperature and spectrum of sunlight. The maximum power level sensor produces a reference voltage signal which is proportional to the maximum power level of the photovoltaic system. The maximum power level sensor comprises a reference circuit including at least one reference photovoltaic cell and a thermistor network in parallel with the reference cell. The thermistor network comprises at least one negative temperature coefficient thermistor, at least one resistor in parallel with the thermistor, and at least one resistor in series with the thermistor and the parallel resistor. The thermistor is positioned in or on the photovoltaic array. The reference cell is preferably constructed of materials which are similar to those of the photovoltaic cells in the photovoltaic system.
    • 一种最大功率电平传感器和方法,用于在主要的辐照条件,阵列温度和太阳光谱条件下可靠地提供包括一个或多个光伏电池的光伏系统的最大功率电平的瞬时估计。 最大功率电平传感器产生与光伏系统的最大功率电平成比例的参考电压信号。 最大功率电平传感器包括参考电路,该参考电路包括与参考电池并联的至少一个参考光伏电池和热敏电阻网络。 热敏电阻网络包括至少一个负温度系数热敏电阻,至少一个与热敏电阻并联的电阻器,以及至少一个与热敏电阻器和并联电阻器串联的电阻器。 热敏电阻位于光伏阵列中或其上。 参考单元优选地由与光伏系统中的光伏电池类似的材料构成。