A Novel Space Vector modulation Scheme and Direct Torque Control for Four-switch BLDCM Using Flux Observer

Lei Pan; Beibei Wang; Gang Su; Baohua Cheng; Guili Peng

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자료유형: 학술저널

저자정보: Lei Pan (Tianjin Chengjian University) Beibei Wang (Tianjin Chengjian University) Gang Su (Tianjin Chengjian University) Baohua Cheng (Tianjin Chengjian University) Guili Peng (Tianjin Chengjian University)

저널정보: 대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.10 No.1

발행연도: 2015.1

수록면: 251 - 260 (10page)

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The main purpose of this paper is to describe a DTC (direct torque control) method for four-switch brushless dc motor (BLDCM) drive. In the method, a novel voltage space vector modulation scheme, an optimal switching table, and a flux observation method are proposed. Eight voltage vectors are summarized, which are selected to control BLDCM in SVPWM pattern, and an optimal switching table is proposed to improve the torque distortion caused by midpoint current of the split capacitors. Unlike conventional flux observers, this observer does not require speed adaptation and is not susceptible to speed estimation errors, especially, at low speed. Global asymptotic stability of the flux observer is guaranteed by the Lyapunov stability analysis. DC-offset effects are mitigated by introducing a PI component in the observer gains. This method alleviates the undesired current and torque distortion which is caused by uncontrollable phase. The correctness and feasibility of the method are proved by simulation and experimental results.

#Four-switch inverter #Voltage space vector #Flux observer #BLDCM #Optimal switching table

참고문헌 (20)

참고문헌 신청

1. [학술지(정기간행물)] - K. -W. Lee / 2008 / A novel starting method of the surface permanent-magnet BLDC motors without position sensor for reciprocating compressor / IEEE Trans. Ind. Appl 44 (1) : 85 ~ 92

2. [학술지(정기간행물)] - D. -K. Kim / 2006 / Commutation torque ripple reduction in a position sensorless brushless DC motor drive / IEEE Trans. Power Electron 21 (6) : 1762 ~ 1768

3. [학술지(정기간행물)] - B. -K. Lee / 2003 / On the feasibility of four-switch three-phase BLDC motor drives for low cost commercial applications : Topology and control / IEEE Trans. Power Electron 18 (1) : 164 ~ 172

4. [학술대회논문] - Joon Ho Lee / 2004 / A study for improved of speed response characteristic in four-switch three-phase BLDC motor / Proc. IEEE Ind. Electron. Soc. Conf 2 : 1339 ~ 1343

5. [학술대회논문] - A. H. Niasar / 2006 / Adaptive neuron-fuzzy control with fuzzy supervisory learning algorithm for speed regulation of 4-switch inverter brushless DC machines / Proc. IEEE Power Electron. Motion Control Conf : 1 ~ 5

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