混合勵磁同步電機新型矢量控制算法研究
韓臻1,白玉慶1, 裴召剛2
(1 東南大學 電氣工程學院,江蘇 南京 210096;
2 泰安市電力公司,山東 泰安 271000)
摘 要:在速度分區(qū)控制的基礎上提出一種混合勵磁電機矢量控制算法,該方法綜合考慮了負載轉矩、勵磁電流及母線電壓對弱磁基速的影響,在線動態(tài)計算弱磁基速。在弱磁區(qū),保持氣隙合成反電勢恒定,利用勵磁電流和d 軸電流共同弱磁升速。采用Matlab/Simulink仿真軟件建立混合勵磁同步電機控制系統(tǒng),對所提算法進行驗證。仿真結果表明該算法可實現(xiàn)混合勵磁電機低速大轉矩和高速寬調速范圍運行。
關鍵詞:混合勵磁同步電機;分區(qū)控制;弱磁基速;合成反電勢
中圖分類號:TM341 文獻標識碼:A 文章編號:1007-3175(2014)03-0013-05
Research of New Type Vector Control Strategy for Hybrid Excitation Synchronous Motor
HAN Zhen1, BAI Yu-qing1, PEI Zhao-gang2
(1 School of Electrical Engineering, Southeast University, Nanjing 210096, China;
2 Taian Power Supply Bureau, Taian 211000, China)
Abstract: Based on speed stage control, this paper proposed a kind of vector control algorithm for hybrid excitation synchronous machine (HESM). In this method, load torque, excitation current and DC bus voltage were considered when the fux-weakening base speed was calculated. The air gap synthesis back-electromotive force was kept constant in high-speed region applying excitation and d-axis current for fux-weakening. Simulink in Matlab was adopted to build the HESM control system and the algorithm was validated. The simulation results show that this new control system has higher output torque and broader constant power operation scope.
Key words: hybrid excitation synchronous motor; stage control; flux-weakening base speed; synthesis back-electromotive force
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