Shunt active power filter with enhanced dynamic performance using novel control strategy

被引:29
作者
Xiao, Zhenfeng [1 ]
Deng, Xiangtian [2 ]
Yuan, Rongxiang [2 ]
Guo, Pilong [3 ]
Chen, Qijuan [1 ]
机构
[1] Hunan Elect Power Corp Econ & Tech Res Inst, Changsha 410004, Hunan, Peoples R China
[2] Wuhan Univ, Sch Elect Engn, Wuhan 430072, Peoples R China
[3] China Three Gorges Univ, Coll Elect Engn & New Energy, Yichang 443002, Peoples R China
关键词
DIGITAL REPETITIVE CONTROL; INJECTION CIRCUIT; INTERNAL-MODEL; CONTROL SCHEME; DESIGN; HARMONICS; INVERTER; FRAME; SYSTEMS;
D O I
10.1049/iet-pel.2013.0524
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
To realise the accurate and real-time compensation of the harmonics of a power system, this study proposes a novel control strategy for shunt active power filter (SAPF), adopting the composite strategy of neural network proportional-integral (PI) control and dual-repetitive controller (DRC). In DRC, one repetitive controller is used to ensure current tracking accuracy and the other one is used to enhance dynamic response. The neural network PI control is adopted to improve response speed by turning the PI parameters adaptively and setting optimisation parameters online. Through the optimisation of this approach and the rational configuration of the hardware and software systems, the SAPF could achieve rapid dynamic response with high tracking accuracy and excellent compensation performance. A 100 kVA industrial prototype active power filter has been developed by using this control strategy. System compensation could effectively reduce the total harmonic distortion values from 26 to 27.7%, 27.6 to 4.25% and 4.57 to 4.35% for each phase of the current. The full response time of the system is < 10 ms.
引用
收藏
页码:3169 / 3181
页数:13
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