Decoupling control of thrust and attractive force of a LIM using a space vector control inverter. [Linear Induction Motor]

Journal Article · · IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6617447

Takahashi, I ^[1]; Ide, Yuji ^[2]

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1. Nagaoka Univ. of Technology (Japan)
2. Sanyo Denki Co., Ueda (Japan)

A new control method of magnetic levitation vehicles using linear induction motors is described. They can generate both thrust and attractive force. By selecting voltage vectors of PWM inverters appropriately, decoupling control between the thrust and attractive force is achieved. A module is constructed by four linear induction motors. The levitation control can be accomplished by detecting the gap length and controlling the attractive force of each linear induction motor. Ultrasonic wave sensors enable stoppage of the vehicle at any desired position using modified sliding mode control. Decoupling control between the thrust and attractive force was experimentally proved by the small model. The fluctuation of the gap length for the step change of the thrust is less than 0.1 mm. It would be suitable for low-speed vehicles such as urban transit systems.

• OSTI ID: 6617447
• Journal Information: IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers); (United States) Vol. 29:1, Part 1; ISSN 0093-9994; ISSN ITIACR
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320202 -- Energy Conservation
Consumption
& Utilization-- Transportation-- Railway
33 ADVANCED PROPULSION SYSTEMS
330300* -- Advanced Propulsion Systems-- Electric-Powered Systems
CONTROL
CONTROL EQUIPMENT
ELECTRIC GENERATORS
ELECTRIC MOTORS
ELECTRICAL EQUIPMENT
ENGINES
EQUIPMENT
INDUCTION GENERATORS
INVERTERS
LEVITATED TRAINS
MAGNETIC FIELDS
MASS TRANSIT SYSTEMS
MOTORS
TRAINS
TRANSPORTATION SYSTEMS
VEHICLES