Effect of Zero-Vector Placement in a Dual-Inverter Fed Open-End Winding Induction Motor Drive With Alternate Sub-Hexagonal Center PWM Switching Scheme

Three-level inversion can be achieved by the cascade connection of two two-level inverters to an open-end winding induction motor. Several space vector based pulsewidth modulation (PWM) control strategies have been proposed for this power circuit configuration in the past. It is known that space vec...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2008-05, Vol.23 (3), p.1584-1591
Main Authors: Somasekhar, V.T., Srinivas, S., Kumar, K.K.
Format: Article
Language:English
Subjects:
A.c. Machines
Applied sciences
Cascades
Circuits
Dual-inverter
Effects
Electrical engineering. Electrical power engineering
Electrical machines
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Exact sciences and technology
Induction motor drives
Induction motors
Mathematical analysis
open-end winding induction motor
Placement
Power electronics, power supplies
Pulse duration modulation
Pulse width modulation
Pulse width modulation inverters
Regulation and control
Sampling methods
Space technology
Space vector pulse width modulation
space vector pulsewidth modulation (SVPWM)
Support vector machines
Switching
Vector space
Vectors (mathematics)
Voltage
Winding
zero-sequence voltage
zero-vector
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Description
Summary:Three-level inversion can be achieved by the cascade connection of two two-level inverters to an open-end winding induction motor. Several space vector based pulsewidth modulation (PWM) control strategies have been proposed for this power circuit configuration in the past. It is known that space vector modulation offers a degree of freedom in its implementation with regard to the distribution of the zero-vector. In this paper, the effect of placement of zero-vector for the implementation of space vector based PWM techniques for a dual-inverter fed open-end winding induction motor drive is reported. Apart from constructing a consistent theoretical frame work, experimental results with continuous and discontinuous PWM are presented in this paper and all the cases are compared.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2008.921170