Flux-Weakening Control for Variable Flux Reluctance Machine Excited by Zero-Sequence Current Considering Zero-Sequence Resistive Voltage Drop

被引：12
作者：
Guo, Jiaqiang [1 ,2 ]
Liu, Xu [1 ,2 ]
Li, Shanhu [1 ,2 ]
机构：
[1] Hebei Univ Technol, State Key Lab Reliabil & Intelligence Elect Equip, Tianjin 300130, Peoples R China
[2] Hebei Univ Technol, Key Lab Electromagnet Field & Elect Apparat Relia, Tianjin 300130, Peoples R China
来源：
IEEE TRANSACTIONS ON ENERGY CONVERSION | 2021年 / 36卷 / 01期
关键词：
Stator windings; Inverters; Torque; Voltage control; Mathematical model; Windings; Zero-sequence current excitation; variable flux reluctance machine (VFRM); flux-weakening control; resistive voltage drops;
D O I：
10.1109/TEC.2020.3005137
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In the control of variable flux reluctance machine (VFRM) excited by zero-sequence current, neglecting the zero-sequence resistive voltage drop would cause a large calculation deviation of the stator voltage, which can saturate the inverter and influence the switching from constant torque region to flux-weakening region. To solve with this problem, a flux-weakening control method considering the zero-sequence resistive voltage drop for VFRM is proposed. Firstly, the relationship between dq-axis voltages, zero-sequence voltage and the maximum voltage is presented. Secondly, based on the deduced voltage constraint, the calculation of optimal reference currents in flux-weakening region is presented by using Lagrange multiplier method. Since the zero-sequence voltage is considered, the calculation accuracy of the stator voltage and the utilization rate of DC link voltage are improved, which improves the output power capability. Finally, the proposed method is verified by the experimental results.
引用
收藏
页码：272 / 280
页数：9
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