Mixed maximum power point-tracing control method of photovoltaic water-raising system
Title：
Mixed maximum power point-tracing control method of photovoltaic water-raising system
Application Number：
 200610062812
Application Date：
 2006/09/25
Announcement Date：
 2007/03/28
Pub. Date：
Publication Number：
 1936757
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 94[China|shenzhen]
IPC：
 G05F 1/66, G05F 1/67, H02P 27/06
Applicant(s)：
 Shenzhen Graduated Student Inst., Tsinghua Univ.
Inventor(s)：
Key Words：
 water-raising system, mixed maximum power, point-tracing control
Abstract：
 A tracking and control method for the hybridded maximum power point of the photovoltaic pumping system. It contains: a, the check and choice logo, it will turn to the step b if it is ture, or it will turn to the step d. b, the output frequency of the inverter will be adjusted the running of the multiple criteria. C, the choice logo will become untrue and the reference voltage Verf=V (n), and the real running time of the normal voltage method, tCV, will be reset, and turn to the step a, or turn to the step a. d, the output frequency of the inverter will be adjusted by the running of the normal voltage method. e, To add a control cycle into the running time of the normal voltage method, tvc, the choice logo will be true if the tvc >= TVC and turn to the step a, or it will turn directly to the step a. it adjust the output frequency by the alternative running of multiple criteria and normal voltage, it can adjust the output frequency in time and control the DC voltage effectively and assure the stable running of the system, the system owns rapid and dynamic tracking characteristics, and a good stable characteristics by taking advantage of this method .
Claim：
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PCT：
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