Abstract:A detailed analysis of a multiple Boost converter based on the proposed instantaneous current control is presented. The Boost converter is used in the MW-level wind energy conversion system (WECS). The system topology is given to demonstrate the function of multiple structures and control strategy. To obtain a continuous mathematical model of the Boost converter, Fourier series are used to analyze the switching function. Then a steady-state analysis for low-frequency, and high-frequency component, and a closed-loop tracking performance analysis for dynamic response are provided to analyze the method proposed. The results show that the method can effectively restrain the low-frequency harmonics and has a fast dynamic response. The theoretical results are verified experimentally.
梁晖, 石威威. 风力发电系统多重化升压斩波器瞬时电流控制[J]. 电工技术学报, 2011, 26(4): 86-92.
Liang Hui, Shi Weiwei. Study of Instantaneous Current Control for Multiple Boost Converter in Wind Energy Conversion System. Transactions of China Electrotechnical Society, 2011, 26(4): 86-92.
[1] Geng Hua, Yang Geng. A novel control strategy of MPPT taking dynamics of wind turbine into account[C]. 37th IEEE Power Electronics Specialists Conference, Korea, Jeju, 2006: 1-6. [2] Song S H, Kang S, Hahm N K. Implementation and control of grid connected AC-DC-AC power converter for variable speed wind energy conversion system[C]. IEEE APEC’03, 2003, 1: 154 -158. [3] Xiong Xin, Liang Hui. Research on multiple Boost converter based on MW-level wind energy conversion system[C]. The Eighth International Conference on Electrical Machines and Systems (ICEMS’2005), Nanjing, China, 2005, 2: 1046-1049. [4] Donald Grahame Holmes, Brendan P McGrath. Opportunities for harmonic cancellation with carrier-based PWM for two-level and multilevel cascaded inverters[J]. IEEE Transactions on Industry Applications, 2001, 37(2): 574-582 . [5] Muller S. Doubly fed induction generator system[J]. IEEE Transactions on Industry Applications, 2002, 8(3): 26-33. [6] Zhu Ning, Liang Hui. A current control strategy for PWM converter in variable speed wind power generation[C]. IASTED-PES-2007, USA, Clearwater, 2007: 1846-1851. [7] Wu Rusong, Shashi B Dewan, Gordon R Slemon. Analysis of an AC-to-DC voltage source converter using PWM with phase and amplitude control[J]. IEEE Transactions on Industry Applications, 1991, 21(2): 355-364. [8] Bose B K. Modern power electronics and AC drives[M]. NJ: Prentice-Hall, 2002. [9] Dubois M R. Review of electromechanical conversion in wind turbines[R]. Report EPP00. R03, Apr. 2000: 4-10.