SOLAR POWER GENERATION SYSTEM
First Claim
1. A solar power generation system comprising a solar power generator including a plurality of arrays, and a power storage device including a plurality of secondary batteries,the solar power generator and the power storage device being respectively provided with DC/DC converters which are coupled together, and each DC/DC converter being coupled with an AC/DC converter to configure a power generating/storing unit,a plurality of the units being prepared and coupled with an electricity distribution system through respective AC/DC converters,the solar power generator of each unit being provided with a control unit that performs maximum power point tracking control so as to obtain a maximum output characteristic of the solar power generator,the power storage device of each unit being provided with a control unit which detects a voltage at the battery side and which controls charging/discharging of the battery,the solar power generation system further comprising an integrated control device which is connected to respective control units of each unit via a communication link and controls charging/discharging of each unit and an output of each unit,the integrated control device calculating a target output value of a whole system based on an output value by the solar power generator of each unit, and transmitting the calculated target output value to the AC/DC converter of each unit, andthe AC/DC converter of each unit being provided with a control unit that controls the AC/DC converter to establish a system interconnection based on the target output value received from the integrated control device.
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Accused Products
Abstract
A system includes a solar power generator having plural arrays and a power storage device having plural secondary batteries. The solar power generator and the power storage device are respectively provided with DC/DC converters coupled together, and each DC/DC converter is coupled with an AC/DC converter to configure a power generating/storing unit. Such units are coupled to an electricity distribution system through respective AC/DC converter. The solar power generator of each unit is provided with a control unit performing maximum power point tracking control so as to obtain the maximum output characteristic of the solar power generator. The power storage device is provided with a control unit detecting a voltage at the battery side and controlling charging/discharging thereof. Moreover, an integrated control device coupled with respective control units and controlling charging/discharging and an output is provided.
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Citations
6 Claims
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1. A solar power generation system comprising a solar power generator including a plurality of arrays, and a power storage device including a plurality of secondary batteries,
the solar power generator and the power storage device being respectively provided with DC/DC converters which are coupled together, and each DC/DC converter being coupled with an AC/DC converter to configure a power generating/storing unit, a plurality of the units being prepared and coupled with an electricity distribution system through respective AC/DC converters, the solar power generator of each unit being provided with a control unit that performs maximum power point tracking control so as to obtain a maximum output characteristic of the solar power generator, the power storage device of each unit being provided with a control unit which detects a voltage at the battery side and which controls charging/discharging of the battery, the solar power generation system further comprising an integrated control device which is connected to respective control units of each unit via a communication link and controls charging/discharging of each unit and an output of each unit, the integrated control device calculating a target output value of a whole system based on an output value by the solar power generator of each unit, and transmitting the calculated target output value to the AC/DC converter of each unit, and the AC/DC converter of each unit being provided with a control unit that controls the AC/DC converter to establish a system interconnection based on the target output value received from the integrated control device.
Specification