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    • 2. 发明授权
    • Distributed power harvesting systems using DC power sources
    • 使用直流电源的分布式电力采集系统
    • US09130401B2
    • 2015-09-08
    • US13182758
    • 2011-07-14
    • Meir AdestLior HandelsmanYoav GalinAmir FishelovGuy SellaMeir GazitIlan YoscovichYaron Binder
    • Meir AdestLior HandelsmanYoav GalinAmir FishelovGuy SellaMeir GazitIlan YoscovichYaron Binder
    • H02J1/00H02J1/10H01L31/02H02J3/38H02J7/35
    • H02S40/34H01L31/02021H02J1/102H02J3/383H02J7/35Y02E10/563Y02E10/566Y10T307/50
    • A photovoltaic panel with multiple photovoltaic sub-strings including serially-connected photovoltaic cells and having direct current (DC) outputs adapted for interconnection in parallel into a parallel-connected DC power source. A direct current (DC) power converter including input terminals and output terminals is adapted for coupling to the parallel-connected DC power source and for converting an input power received at the input terminals to an output power at the output terminals. The direct current (DC) power converter optionally has a control loop configured to set the input power received at the input terminals according to a previously determined criterion. The control loop may be adapted to receive a feedback signal from the input terminals for maximizing the input power. A bypass diode is typically connected in shunt across the input terminals of the converter. The bypass diode functions by passing current during a failure of any of the sub-strings and/or a partial shading of the sub-strings. The bypass diode may be a single bypass diode connected across the parallel-connected DC power source. The DC power converter may convert the input power at high current to the output power at a lower current. The output terminals may be connectible with wire cables to a load, and the DC power converter is configured to reduce energy loss through the wire cables to the load.
    • 一种具有多个光伏子串的光伏面板,包括串联连接的光伏电池,并具有适于互并联并联连接的直流电源的直流(DC)输出。 包括输入端子和输出端子的直流(DC)功率转换器适于耦合到并联DC电源并将在输入端子接收的输入功率转换为输出端子处的输出功率。 直流(DC)电力转换器可选地具有控制回路,其被配置为根据先前确定的标准来设置在输入端子处接收的输入功率。 控制回路可以适于从输入端接收反馈信号,以使输入功率最大化。 旁路二极管通常连接在转换器的输入端上并联。 旁路二极管通过在任何子串的故障期间传递电流和/或子串的部分阴影来起作用。 旁路二极管可以是连接在并联的直流电源上的单个旁路二极管。 DC电力转换器可以以较低电流将高电流下的输入功率转换为输出功率。 输出端子可以与线缆连接到负载,并且DC功率转换器被配置为减少通过电缆到负载的能量损耗。