Journal of Jilin University Science Edition
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XUE Peng, WEI Wei, DU Hongyu
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In view of the active energy of motor feedback system, the current waveform and the energy conversion process of a motor in brake state were analyzed, and the mathematical model of the threephase voltagetype inverter grid was established in the synchronous rotating dq coordinate system, the independent control of the feedback current active component and reactive component grid was achieved with SVPWM direct current control algorithm, building experimental platform of motor energy feedback system in order to complete the resistive load experiments and feedback experiments of threephase gridconnected inverters. The experimental results show that bidirectional flowing of the energy is implemented with energy feedback, and the harmonics are suppressed effectively.
Key words: energy feedback, threephase grid inverter, control strategy
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XUE Peng, WEI Wei, DU Hongyu. Grid System Based on Energy Feedback Technology[J].Journal of Jilin University Science Edition, 2014, 52(04): 783-788.
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http://xuebao.jlu.edu.cn/lxb/EN/Y2014/V52/I04/783
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