| 基于模糊PI控制算法的微电网并网控制策略研究 |
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| 引用本文： | 李诚,陈定辉,凃勇,杨少智,付文雯,曾成碧.基于模糊PI控制算法的微电网并网控制策略研究[J].现代电力,2015,32(4):8-11. |
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| 作者姓名： | 李诚 陈定辉 凃勇 杨少智 付文雯 曾成碧 |
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| 作者单位： | 1.国网四川电力公司凉山供电公司,四川西昌 615000; |
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| 基金项目： | 四川省科技支撑项目(2014GZ0069) |
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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。
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| 关 键 词： | 模糊PI控制 微电网 双闭环控制 并网逆变器 |
| 收稿时间： | 2014-08-14 |
Study of the Grid-connected Control Strategy for Micro-gridBased on Fuzzy PI Control |
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| Affiliation: | 1.Sichuan Electric Power Company, Liangshan Power Supply Company,Xichang,615000,China;2.Electrical and Information College of Sichuan University,Chengdu,610065,China |
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| 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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