Title:
SYSTEM AND METHOD FOR OVER-VOLTAGE PROTECTION OF A PHOTOVOLTAIC STRING WITH DISTRIBUTED MAXIMUM POWER POINT TRACKING
Document Type and Number:
WIPO Patent Application WO/2010/132698
Kind Code:
A4
Abstract:
A string over-voltage protection system and method for arrays of photovoltaic panels (205). The system and method includes a device (220) for use in a photovoltaic array power system. The device includes a voltage converter (225). The voltage converter is adapted to be coupled to a photovoltaic panel in a string (210) of photovoltaic panels. The device also includes a string over-voltage protection circuit (505). The string over-voltage protection circuit is coupled to the voltage converter. The string over-voltage protection circuit senses a string voltage and determines if a string over-voltage condition exists. Additionally, the string over-voltage protection circuit is configured to disable the voltage converter in the event of a string over-voltage condition.
Inventors:
LISI GIANPAOLO (US)
DJABBARI ALI (US)
ZHANG JIANHUI (US)
DJABBARI ALI (US)
ZHANG JIANHUI (US)
Application Number:
PCT/US2010/034783
Publication Date:
April 28, 2011
Filing Date:
May 13, 2010
Export Citation:
Assignee:
NAT SEMICONDUCTOR CORP (US)
LISI GIANPAOLO (US)
DJABBARI ALI (US)
ZHANG JIANHUI (US)
LISI GIANPAOLO (US)
DJABBARI ALI (US)
ZHANG JIANHUI (US)
International Classes:
H02J7/35; H01L31/042; H02H7/122
Attorney, Agent or Firm:
MUNCK, William A. et al. (LLP600 Banner Place Tower,12770 Coit Roa, Dallas Texas, US)
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