Analysis of Photovoltaic Maximum Power Point Trackers
作者： Mummadi Veerachary
关键词: Maximum power principle 、 Mathematics 、 Control theory 、 Operating point 、 Buck converter 、 Photovoltaic system 、 Topology (electrical circuits) 、 Power optimizer 、 Duty cycle 、 Maximum power point tracking
摘要: The photovoltaic generator exhibits a non-linear i-v characteristic and its maximum power point (MPP) varies with solar insolation. An intermediate switch-mode dc-dc converter is required to extract from the array. In this paper buck, boost buck-boost topologies are considered detailed mathematical analysis, both for continuous discontinuous inductor current operation, given MPP operation. conditions on connected load values duty ratio derived achieving satisfactory Further, it shown that certain values, falling out of optimal range, will drive operating away true point. Detailed comparison various MPPT given. Selection topology loading discussed. discussion circuit-oriented model development then effectiveness systems verified through simulations. Proposed theory analysis validated experimental investigations.
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