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http://dx.doi.org/10.5370/JEET.2016.11.3.670

Hybrid Pulse Width Modulation Strategy for Wide Speed Range in IPMSM with Low Cost Drives  

Ahn, Han-woong (Dept. of Electrical Engineering, Hanyang University)
Go, Sung-chul (Mechatronics R&D Center, Samsung Electronics Co.)
Lee, Ju (Dept. of Electrical Engineering, Hanyang University)
Publication Information
Journal of Electrical Engineering and Technology / v.11, no.3, 2016 , pp. 670-674 More about this Journal
Abstract
The control performance of hybrid PWM inverter using a phase current measurement is presented in this paper. The hybrid PWM technique consists of space vector pulse width modulation (SVPWM) and six-step voltage control operation. The SVPWM is performed to reduce the harmonic components in the low speed region, and the six-step modulation is applied to increase the maximum speed of the IPMSM in the high speed region. Therefore, it is possible to obtain a great performance in both the low speed range and high speed range. However, the six-step modulation cannot be completely implemented, since the inverter that includes the lag-shunt sensing method has an immeasurable current region. In this paper, a quasi-six-step modulation using a modified voltage vector is proposed. The validity and usefulness of the proposed PWM technique is verified by MATLAB/Simulink and experimental results.
Keywords
Hybrid pulse width modulation; Quasi-six-step modulation; Voltage utility maximization; Field weakening; Low cost IPMSM drive;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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