Title :
Analytical Investigation of an Induction Motor Fed From Four-Switch VSI With a New Space Vector Modulation Strategy
Author_Institution :
Dept. of Electr. Eng. & Autom., Tech. Fac. of CZU in Prague
Abstract :
In this paper, an analytical model with a new space-vector modulation strategy for a four-switch (B4), inverter feeding an induction motor drive is derived. The proposed modulation strategy for the B4 operation has the same symmetry as in a classical B6 inverter. The analysis is based on a novel space-vector decomposition technique. The analytical results of the machine are accomplished in an alphabeta complex plane by space vector decomposition and by using a mixed p-z approach. As shown, good agreement exists between the analytically calculated waveforms and the experimentally determined ones. Therefore, the proposed analytical model becomes a very useful method for motor investigation under unbalanced as well as balanced supply conditions
Keywords :
induction motor drives; invertors; switching convertors; four-switch VSI; induction motor drive; mixed p-z approach; space vector decomposition technique; space vector modulation strategy; Analytical models; Capacitors; Functional analysis; Induction motor drives; Induction motors; Pulse width modulation inverters; Switches; Switching frequency; Torque; Voltage; Induction motors; PWM; inverters; modeling; time-domain analysis;
Journal_Title :
Energy Conversion, IEEE Transactions on
DOI :
10.1109/TEC.2005.858067