METHOD AND SYSTEM FOR PROVIDING LOCAL CONVERTERS TO PROVIDE MAXIMUM POWER POINT TRACKING IN AN ENERGY GENERATING SYSTEM
摘要
A method for providing maximum power point tracking for an energy generating device (202) using a local buck-boost converter (206) coupled to the device (202) is provided. The method includes operating in a tracking mode, which includes initializing a conversion ratio for the buck-boost converter (206) based on a previous optimum conversion ratio. A device power associated with the initialized conversion ratio is calculated. The conversion ratio is repeatedly modified and a device power associated with each of the modified conversion ratios is calculated. A current optimum conversion ratio for the buck-boost converter (206) is identified based on the calculated device powers. The current optimum conversion ratio corresponds to one of a buck mode, a boost mode and a buck-boost mode for the buck-boost converter (206).
申请公布号
WO2009140539(A3)
申请公布日期
2010.02.18
申请号
WO2009US44019
申请日期
2009.05.14
申请人
NATIONAL SEMICONDUCTOR CORPORATION;ZHANG, JIANHUI;DJABBARI, ALI;LISI, GIANPAOLO