Design Of Independent Photovoltaic Power Generation System In Military Barracks

As environmental pollution deteriorate and fossil energy shortage, renewable energies became the main object to development and utilization of each country of the earth. Among them, solar energy was concerned all over the earth. In which, photovoltaic(PV) power generation plays important role in reduce environmental pollution and energy crisis, hence, it is a hotspot in the army energy development at home and abroad. China photovoltaic energy demand huge, broad market. All aspects of the predicted results show that the about 21 centuries middle period when solar will become China’s energy directly supply a mainstay. There are many solutions of photovoltaic power generation system, they mainly included two types, both of them are grid-connected and independent power generation. In the article, we mainly research stand-alone photovoltaic generation system maximum power point tracking control, then clarified the principle of it and inverter modules.In the article, we clarify the background firstly, then study the current situation all over the world, at the same time boost converter is analyzed and the research status of sine wave inverter, then the components of the PV systems and its working principle are introduced and the model is established.This paper clarify photovoltaic cell output feature, basic theory and feature of commonly used maximum power point tracking control algorithm. On this basis, we redefined the fixed and variable step size tracking mode switching conditions, then we change rules under variable step-size tracking mode.This paper adopt a novel interleaved Boost-Flyback converter (IBFC) to improve output voltage. This converter is proposed with an interleaved structure of both two converter for reducing input and output ripples. A high voltage gain is achieved via the transformer turns ratio of the flyback converter.This paper adopt the single-phase voltage type paper full bridge inverter circuit will be stable high voltage direct current DC into sine wave AC inverter and then for the use of the load.In addition, the simulation experiment is carried out in this paper. The operating conditions of various conditions are studied. The results obtained from the simulation test are consistent with the theory. The control strategy is operable, and it can provide reference for the design of similar systems in the future.