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Abstract: Based on the direct torque control, combining the
characteristics of both state-flux-oriented control and rotor-flux
-oriented
control, the scheme of speed estimation for motor in detail and
calculation of related parameters are discussed. A simple and applicable
speed estimation method of AC motor is put forward. A simulation
experiment is carried out, it verifies the theory analysis is right and
practical.
Key words: Direct torque control State-flux-oriented control
Rotor-flux-oriented control Speed estimation Flux angle
CLC No: TM301.2
四川省科委自然科学基金课题(川教科199920).
Received 20030115, received in revised form 20030930
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