Abstract
This paper presents modular permanent magnet (PM) motor drives for automotive traction applications. A partially modularized drive system consisting of a single PM motor and multiple inverters is described. The motor has multiple three-phase stator winding sets and each winding set is driven with a separate three-phase inverter module. A truly modularized inverter and motor configuration based on an axial-gap PM motor is then introduced, in which identical PM motor modules are mounted on a common shaft and each motor module is powered by a separate inverter module. The advantages of the modular approach for both inverter and motor include: 1) power rating scalability - one design meets different power requirements by simply stacking an adequate number of modules, thus avoiding redesigning and reducing the development cost, 2) increased fault tolerance, and 3) easy repairing. A prototype was constructed by using two inverters and an axial-gap PM motor with two sets of three-phase stator windings, and it is used to assist the diesel engine in a hybrid electric vehicle converted from a Chevrolet Suburban. The effect of different pulse-width-modulation strategies for both motoring and regenerative modes on current control is analyzed. Torque and regenerative control algorithms are implemented with a digital signal processor. Analytical and initial testing results are included in the paper.
Original language | English |
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Pages | 119-124 |
Number of pages | 6 |
State | Published - 2001 |
Event | 27th Annual Conference of the IEEE Industrial Electronics Society IECON'2001 - Denver, CO, United States Duration: Nov 29 2001 → Dec 2 2001 |
Conference
Conference | 27th Annual Conference of the IEEE Industrial Electronics Society IECON'2001 |
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Country/Territory | United States |
City | Denver, CO |
Period | 11/29/01 → 12/2/01 |