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A Review on the Direct Torque Control of Induction Motors
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| Author(s) |
Domenico Casadei, Giovanni Serra, Angelo Tani, Luca Zarri |
| Abstract |
Among all control methods for induction motor
drives, Direct Torque Control (DTC) seems to be particularly
interesting being independent of machine rotor parameters and
requiring no speed or position sensors. The DTC scheme is characterized
by the absence of PI regulators, coordinate transformations,
current regulators and PWM signals generators. In spite of
its simplicity, DTC allows a good torque control in steady state
and transient operating conditions to be obtained. However, the
presence of hysteresis controllers for flux and torque could determine
torque and current ripple and variable switching frequency
operation for the voltage source inverter. This paper is
aimed to analyze DTC principles, the strategies and the problems
related to its implementation and the possible improvements. |
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| Filename: | 120 |
| Filesize: | 732.5 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-02-08 by System |
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