| 一种并网逆变器的新型复合控制设计 |
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| 引用本文： | 曹靖,童朝南,周京华,李红涛. 一种并网逆变器的新型复合控制设计[J]. 仪器仪表学报, 2017, 38(5): 1296-1303 |
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| 作者姓名： | 曹靖 童朝南 周京华 李红涛 |
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| 作者单位： | 1.北京科技大学自动化学院北京100083;2. 北方工业大学电气与控制工程学院北京100144,北京科技大学自动化学院北京100083,北方工业大学电气与控制工程学院北京100144,北方工业大学电气与控制工程学院北京100144 |
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| 基金项目： | 国家自然科学基金（61673053）项目资助 |
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| 摘 要： | 针对并网逆变器在瞬态能量回馈中快速性和抗干扰性的要求,提出了一种新型的复合控制方法。该方法融合了重复控制和滑模变结构控制的优点,利用重复控制优化了等效控制的跟踪特性,有效抑制了并网电流谐波,加快了系统动态响应速度,提高了系统抗干扰性能。仿真和实验结果表明,系统稳态并网电流5次谐波畸变率可控制在1.5%,网侧功率因数接近于1,动态电流响应速度快,有效抑制了能量变化对直流母线电压的影响,从而证明了所提出复合控制方法的有效性。
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| 关 键 词： | 逆变器 滑模变结构控制 复合控制 |
New composite control design for grid connected inverter |
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| Cao Jing,Tong Chaonan,Zhou Jinghua and Li Hongtao. New composite control design for grid connected inverter[J]. Chinese Journal of Scientific Instrument, 2017, 38(5): 1296-1303 |
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| Authors: | Cao Jing Tong Chaonan Zhou Jinghua Li Hongtao |
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| Affiliation: | 1. School of Automation and Electrical Engineering, University of Science and Technology Beijing, Beijing 100083, China; 2. School of Electrical and Control Engineering, North China University of Technology, Beijing 100144, China,School of Automation and Electrical Engineering, University of Science and Technology Beijing, Beijing 100083, China,School of Electrical and Control Engineering, North China University of Technology, Beijing 100144, China and School of Electrical and Control Engineering, North China University of Technology, Beijing 100144, China |
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| Abstract: | A novel composite control method is proposed in this paper aiming at the requirements of transient response and anti interference performance in applications of transient energy feedback of gird connected inverter. The method combines the advantages of repetitive control and sliding mode variable structure control. The tracking characteristic of sliding mode variable structure control is optimized using repetitive control, and the composite control method effectively suppresses the grid connected current harmonics, speeds up the system dynamic response speed and improves the system anti interference performance. Simulation and experiment results show that the fifth harmonic distortion of the grid connected current is controlled to 1.5%, and the grid side power factor is close to 1. Furthermore, with the fast transient response of dynamic current, the effect of energy variation on dc bus voltage is effectively restrained, which proves the effectiveness of the proposed composite control method. |
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| Keywords: | inverter sliding mode variable structure control composite control |
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