Noninteger Lexicographic-Optimization-Based Sequential Model-Predictive Fault-Tolerant Control of T-Type Shunt Active Power Filter

被引:9
作者
Long, Bo [1 ,2 ,3 ]
Cao, TianXu [1 ,2 ,3 ]
Qi, XinYue [1 ,2 ,3 ]
Shen, DaWei [4 ]
Guerrero, Josep M. [5 ]
Rodriguez, Jose [6 ]
Chong, Kil To [7 ]
机构
[1] Univ Elect Sci & Technol China, Sch Mech & Elect Engn, Inst Elect Vehicle Driving Syst & Safety Technol, Chengdu 611731, Peoples R China
[2] Univ Elect Sci & Technol China, Yangtze Delta Reg Inst, Huzhou 313001, Peoples R China
[3] Univ Elect Sci & Technol China, Inst Elect & Informat Engn, Guangzhou 523808, Guangdong, Peoples R China
[4] Univ Elect Sci & Technol China, Sch Mechatron & Elect Engn, Chengdu 710049, Peoples R China
[5] Aalborg Univ, Dept Energy Technol, DK-9220 Aalborg, Denmark
[6] Univ Andres Bello, Fac Engn, Santiago 8370146, Chile
[7] Jeonbuk Natl Univ, Dept Elect & Informat Engn, Jeonju 54896, South Korea
关键词
Power harmonic filters; Voltage control; Harmonic analysis; Switches; Circuit faults; Active filters; Fault tolerant systems; Lexicographic optimization (LO); neutral-point voltage balance; predictive tolerant control; shunt active power filter (SAPF); 3-LEVEL INVERTER; DRIVES; RELIABILITY; CONVERTERS; DIAGNOSIS; DESIGN; MPC;
D O I
10.1109/TPEL.2021.3134712
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
Fault-tolerant control (FTC) strategies have been proposed to improve the reliability of power electronic systems. However, the FTC of the three-level T-type converter based shunt active power filter (SAPF) remains limited by redundant devices. To address this problem, an FTC strategy called sequential model predictive tolerant control (SMPTC) is combined with a nonintegral lexicographic optimization (LO) algorithm for solving multiobjective optimization problems. First, the power circuit, space voltage vector diagram, harmonic extraction, and prediction models of the SAPF system are introduced. Second, based on power-switch fault analysis, an adaptive dc bus voltage regulation method is proposed, which ensures that the candidate voltage vectors are fully utilized in the fault state. Third, an LO-SMPTC strategy is proposed by designing a sequential predictive controller that considers the neutral point (NP) voltage and the tracking of the SAPF output current. Compared with the traditional model predictive control, the proposed method not only achieves NP voltage balance and excellent harmonic compensation but also eliminates the selection of weighting factors, thereby improving the control flexibility and time efficiency. Finally, the effectiveness of the LO-SMPTC on the dc bus voltage, NP voltage oscillations, grid current power quality, and pole voltage under different scenarios is demonstrated through experiments.
引用
收藏
页码:7169 / 7184
页数:16
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