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A Hybrid PWM-Based Field Weakening Strategy for a Hybrid-Inverter-Driven Open-Winding PMSM System.

Authors :
Sun, Dan
Zheng, Zhihao
Lin, Bin
Zhou, Wenzhi
Chen, Min
Source :
IEEE Transactions on Energy Conversion; Sep2017, Vol. 32 Issue 3, p857-865, 9p
Publication Year :
2017

Abstract

This paper proposes a hybrid pulse width modulation (PWM) based field weakening control strategy for a hybrid-inverter-driven open-winding (OW) permanent magnet synchronous motor (PMSM) system. The hybrid-inverter consists of two voltage source inverters, one is connected to a dc voltage source and named as main inverter (MI), and the other is connected to a floating capacitor and called compensation inverter (CI). A novel hybrid PWM technique is proposed for the hybrid-inverter, in which a double-vector-based PWM is applied to the MI to reduce the switching frequency, and the conventional space vector PWM is applied to the CI to compensate the reactive power. Furthermore, a field weakening (FW) control strategy based on the hybrid PWM technique is proposed to better utilize the dc-link voltage and extend the operation range of the OW-PMSM system. Simulation and experimental studies are carried out to verify the high efficiency and wide speed range of the proposed strategy. [ABSTRACT FROM PUBLISHER]

Details

Language :
English
ISSN :
08858969
Volume :
32
Issue :
3
Database :
Complementary Index
Journal :
IEEE Transactions on Energy Conversion
Publication Type :
Academic Journal
Accession number :
124764911
Full Text :
https://doi.org/10.1109/TEC.2017.2676020