西南交通大学学报Issue(5)：875-881,7.DOI:10.3969/j.issn.0258-2724.2014.05.021
消除谐波电流的七相感应电机矢量控制
Vector Control of Seven-Phase Induction Motor with Harmonic Currents Elimination
摘要
Abstract
In order to control the flux and torque and eliminate harmonic status currents of seven-phase induction motors simultaneously,three methods were proposed according to the principle of reducing the harmonic subspace composite voltage vectors in the space decomposition model. These methods included the space vector pulse width module (SVPWM)A where the composite voltage vector of the 3rd harmonic subspace is zero,the SVPWM B where the composite voltage vector of the 3rd or the 5th harmonic subspace is zero,and the unified voltage module (UVM)C that adopts a closed-loop motor control strategy. Speed-regulating experiments were then performed to verify the efficiency of the three methods in control of the flux and torque. The results show that the performance on harmonic currents elimination using SVPWM A or SVPWM B is not satisfying,since only the action time and sequence of voltage vectors are adjusted while the modulation depth and motor speed are changing continuously. However,a closed loop control of motor is realized under the constraint that harmonic space voltage is zero;therefore,the harmonic currents were eliminated remarkably using UVM C. Compared with the fundamental content (52. 5 dB),the 3rd and 5th harmonic contents are very small, only 17. 8 and 9. 8 dB,respectively.关键词
七相感应电机/矢量控制/空间矢量脉宽调制/消除谐波Key words
seven-phase induction motor/vector control/SVPWM/harmonic elimination分类
信息技术与安全科学引用本文复制引用
郭冀岭,肖建,邱忠才,罗鹏..消除谐波电流的七相感应电机矢量控制[J].西南交通大学学报,2014,(5):875-881,7.基金项目
国家自然科学基金资助项目（51177137）；中央高校基本科研业务费专项资金资助项目 （）
