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| Analysis and Research of MPPT Algorithm for a Single-Stage PV Grid-Connected Power Generation System |
| Zheng Biwei1, Cai Fenghuang1, 2, 4, Wang Wu1, 3, 4 |
| 1. Fuzhou University Fuzhou 350108 China 2. Postdoc of Nanjing University of Aeronautics and Astronautics Nanjing 210016 China 3. Postdoc of Huazhong University of Science & Technology Wuhan 430074 China 4. Postdoc of Zhangzhou Kehua Technology Co. Ltd Zhangzhou 363000 China |
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Abstract The nonlinear output characteristics of photovoltaic cells, single-phase single-stage PV grid system’s hardware topology and common maximum power point tracking (MPPT) control method are discussed. The fuzzy PID control method is introduced to the MPPT control for the shortcoming of traditional first-order-type MPPT control in the single-stage grid-connected power system. MPPT control block diagram of the system and fuzzy PID controller design process is given in detail. PSIM software-based simulation platform is built, and then the proposed control method is simulated and implemented on the experimental prototype finally. Simulation and experimental results show the feasibility and effectiveness of the scheme.
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Received: 25 October 2010
Published: 07 March 2014
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2011, Vol. 26 
