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Optimization of MPPT Control Strategy for Photovoltaic Array Based on Variation Step Incremental Conductance

Changqing Liu

Abstract

It analyzes the solving process of variable step incremental conductance MPPT(maximum power point tracking) in detail,and gets a new way to determine the work-point positions of photovoltaic array.It also presents 3 strategies to change step and 2 optimization methods of MPPT,and proposes a control strategy based on the variable step incremental conductance MPPT.Then,the merits and defects of the strategy are analyzed.Simulation results verify the validity of this optimized strategy.

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Available abstract

Key concepts: Maximum power point tracking, Photovoltaic system, Control theory (sociology), Variable (mathematics), Tracking (education), Variation (astronomy), Maximum power principle, Power (physics)