A new control strategy for the optimization of Distributed MPPT in PV applications

摘要: Abstract In this paper, a new control strategy allowing to optimize the performances of PV systems adopting Distributed Maximum Power Point Tracking (DMPPT) is presented and discussed. Such based on evaluation an estimate optimal operating range inverter input voltage voltages modules. The main advantage proposed technique represented by possibility evaluate in closed-form above estimates, provided that modules short circuit currents are known. estimates allows turn fast identification set points for modules; such obtain marked increase speed tracking maximum power point whole system. Moreover, further capability avoid value remains trapped neighborhood suboptimal thus lowering energetic efficiency system, as it may happen when standard MPPT techniques (such Perturb Observe technique) adopted.