Research On Maximum-power-point-tracking Control Method Of Distributed Photovoltaic Generation Systems

As the shortage of the traditional energy, the application of solar photovoltaictechnology is more and more widely. Solar photovoltaic battery output characteristicof maximum power point tracking control. The traditional tracking control ofmaximum power point of pv cells often adopt centralized technology solutions.Because of the photovoltaic modules a branch concentration to achievemaximum power point tracking (MPPT) of photovoltaic system centralized effect andefficiency problems, new types of PV modules for each individual to realize MPPT ofdistributed photovoltaic system arises at the historic moment. This paper analyses theelectrical characteristics of photovoltaic cells, designed the series and parallelconnection of distributed photovoltaic system the main circuit of the MPPT controllerand the tracking algorithm, according to local shadow distributed photovoltaic powergeneration system of maximum power point tracking, two different MPPT controlalgorithm is proposed, and the design of hardware circuit and construct platform forexperiment waveforms are obtained.