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Photovoltaic (pv) grid inverter is the most power tracing research and its implementation

by:Fangpusun     2020-10-13
As the human society, the demand for energy is more and more strong and the problem of pollution is more and more serious, caused traditional energy of renewable energy in recent years has become the hot spots, including the development of solar energy is one of important research direction. This paper is aiming at these problems, solar photovoltaic (pv) grid inverter as the main object of study, this paper introduces the working principle of photovoltaic (pv) grid inverter, the key technology of maximum power tracking is studied, and use the controller based on DSP and CPLD. Main content as follows: 1. The research background of photovoltaic (pv) grid inverter, various performance indicators is proposed. 2. Inverter working principle and the main topology structure. 3. Maximum power tracking technology research. This paper first analyzes the characteristics of solar cells, and the more commonly used several kinds of maximum power tracking method, and then introduced in this paper, based on changes in the Boost circuit to achieve maximum power tracking algorithm. 4. Maximum power tracking controller design and implementation. Points module introduces the hardware and software design of the controller, and introduces the use of DSP/BIOS embedded operating system, the protection of the inverter control system are analyzed at the same time requirements and the design of protection circuit based on CPLD. 5. In this paper, the experimental results of the maximum power tracking technology and analysis. 6. Need to improve or can extend the entire system.
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