METHOD AND SYSTEM FOR SELECTING BETWEEN CENTRALIZED AND DISTRIBUTED MAXIMUM POWER POINT TRACKING IN AN ENERGY GENERATING SYSTEM

• Main Authors: DJABBARI ALI, LISI GIANPAOLO, ZHANG JIANHUI
• Format: Patent
• Language: English; Korean
• Published: 28.02.2011
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION THEREOF; CONTROLLING; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PHYSICS; REGULATING; SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES; SYSTEMS FOR STORING ELECTRIC ENERGY

A method for selecting between centralized and distributed maximum power point tracking in an energy generating system (500) is provided. The energy generating system (500) includes a plurality of energy generating devices (502), each of which is coupled to a corresponding local converter (504). Each local converter (504) includes a local controller (508) for the corresponding energy generating device (502). The method includes determining whether the energy generating devices (502) are operating under quasi-ideal conditions. The energy generating system (500) is placed in a centralized maximum power point tracking (CMPPT) mode when the energy generating devices (502) are operating under quasi-ideal conditions and is placed in a distributed maximum power point tracking (DMPPT) mode when the energy generating devices (502) are not operating under quasi-ideal conditions.