Study of the Grid-connected Control Strategy for Micro-gridBased on Fuzzy PI Control
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摘要: 由于微电网的逆变输出波形和功率因数效果不理想,本文提出了基于模糊PI控制的双闭环微电网并网逆变控制策略,结合了模糊控制和PI控制的优点,实现双闭环控制。仿真结果表明,新控制策略控制性能良好:并网电流和大电网电压保持同相位,并网功率因数较高,并网电流最大谐波畸变率降低,滤波效果非常理想。Abstract: In this paper, due to unsatisfactory output waveform of inverter and bad power factor of micro-grid, a double closed-loop control strategy for the micro-grid inverters is presented based on combining the advantages of fuzzy control and PI control to realize double-loop control. Simulation results show that the proposed control method has good control performance, can maintain the same phase of grid-connected current as that of grid voltage, provides higher power factor, reduces the maximum harmonic distortion rate of the grid-connected current, and achieves extremely ideal filtering effect.
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Keywords:
- fuzzy PI control /
- micro-grid /
- double closed loop control /
- grid connected inverter
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王成山,李鹏. 分布式电网、微网和智能配电网的发展与挑战[J]. 电力系统自动化, 2010, 34(2): 1014. 王成山,肖朝霞,王守相. 微网中分布式电源逆变器的多环反馈控制策略[J]. 电工技术学报, 2009, 24(2): 100107. Russel J Kerkman, David Leggate, David W Schlegel, et al. Effects of parasitics on the control of voltage source inverters[J]. IEEE Transactions on Power Electronics, 2003, 18(1):140150. Serpa L A, Kolar J W, Ponnaluri S, et al. A modified direct power control strategy allowing the connection of three-phase inverter to the grid through LCL filter [J]. IEEE Transactions on Industry Applications, 2005, 43(5):13881400. 徐志英,许爱国,谢少军. 采用LCL滤波器的并网逆变器双闭环并网电流控制技术[J]. 中国电机工程学报, 2009, 29(27): 3641. 王要强,吴凤江,孙力,等. 带LCL输出滤波器的并网逆变器控制策略研究[J]. 中国电机工程学报, 2010, 31(12): 3439. 张云红,曾成碧,吴传来,等.模糊控制在永磁同步电机调速系统中的应用[J]. 微电机,2012,45(7):6973. -
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