Hybrid pulse width modulation technique for wide speed range with low cost drivers on IPMSM

Author

Ahn, H. ; Hong, H. ; Oh, Y. ; Lee, J. ; Lee, J.

Author_Institution

Electr. Eng., Hanyang Univ., Seoul, South Korea

fYear

2015

fDate

11-15 May 2015

Firstpage

1

Lastpage

1

Abstract

The control performances of the hybrid PWM inverter according to the phase current measuring method is presented in this paper. The hybrid PWM strategy consists of space vector pulse width modulation (SVPWM) and 6-step modulation. SVPWM is performed to reduce the harmonic components in the low speed region, and 6-step modulation is applied to increase the maximum speed of the IPMSM in the high speed region. Therefore, it is possible to obtain a good performance in both the low speed range and high speed range. However, due to the inverter including lag-shunt sensing methods has the current immeasurable regions, the 6-step modulation cannot be implemented completely. In this paper, quasi-six step modulation is proposed using the modified voltage vector. The validity and usefulness of the proposed PWM technique is verified by MATLAB/ Simulink and experimental results.

Keywords

PWM invertors; permanent magnet motors; synchronous motor drives; IPMSM; MATLAB-Simulink; harmonic components; hybrid PWM inverter; hybrid pulse width modulation technique; interior permanent magnet synchronous motor; lag-shunt sensing methods; low-cost drivers; modified voltage vector; phase current measuring method; quasisix step modulation; space vector pulse width modulation; Current measurement; Harmonic analysis; Inverters; Sensors; Space vector pulse width modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference (INTERMAG), 2015 IEEE

Conference_Location

Beijing

Print_ISBN

978-1-4799-7321-7

Type

conf

DOI

10.1109/INTMAG.2015.7156799

Filename

7156799