Patent ID: 8288644

Claim:
A photovoltaic power generation system comprising: one or more generator unit groups, each generator unit group being arranged to generate electrical power; one or more unit group power collection control sections connected to the one or more generator unit groups, each unit group power collection control section being arranged to collect and control the electrical power generated by the generator unit group correspondingly connected to that unit group power collection control section; and one or more power converters connected to the one or more unit group power collection control sections, each power converter being arranged to convert electrical power collected by at least one of the unit group power collection control sections, wherein each generator unit group comprises a plurality of photovoltaic power generator units, wherein each photovoltaic power generator unit comprises a plurality of solar cell modules and a tracking drive section arranged to impart tracking drive to the solar cell modules of that photovoltaic power generator unit, wherein the photovoltaic power generation system further comprises a plurality of unit state detection sections, each unit state detection section corresponding to one of the photovoltaic power generator units, wherein each unit state detection section is arranged to detect a power generation state of the photovoltaic power generator unit corresponding to that unit state detection section, and wherein outputs of the unit state detection sections are supplied to the unit group power collection control sections.