POLITECHNIKA WARSZAWSKA

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6. ANN sensorless Field Oriented Conrol of IM Fig. 6.2. Block diagram of induction motor in x--y field coordinates These considerations give us the following analogies: • i sx component of the stator current vector in induction motor corresponds to the exciting current in the separately excited dc motor, • i sy component of the rotor current vector in induction motor corresponds to the armature current in the separately excited dc motor. 123
6. ANN sensorless Field Oriented Conrol of IM The basic control properties of induction motor can be presented as: • The relationship between i sx component and rotor flux ψ r is not static. The dynamic is represented by the first order system with the rotor time constant T r , where: x T r r = TN (6.8) rr therefore, i sx component is equal to the magnetizing current iMr ψ = r (6.9) xM only in steady state, • The torque m and flux ψ r are dependent on the stator current vector i s and cannot be controlled independent, • It is good idea to make decoupling, in such a way, that the change of i sx component does not influence on i sy component and vice versa. In this case we can control rotor flux using i sx control signal, and torque using i sy . If we additionally keep the value of i sx as constant, the situation is analogous to the separately excited dc motor. 124
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POLITECHNIKA WARSZAWSKA WARSAW UNIV
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Contents 1. Introduction 4 2. Mathe
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1. Introduction 1. INTRODUCTION The
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1. Introduction In the author’s o
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2. Mathematical description of indu
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3. Basics of Artificial Neural Netw
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4. ANN based Current Controllers (C
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4. ANN based Current Controllers 4.
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4. ANN based Current Controllers Ta
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4. ANN based Current Controllers Th
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4. ANN based Current Controllers As
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4. ANN based Current Controllers Fi
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Page 171 and 172: References REFERENCES Books and Ove
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References [66] A. Tripathi and P.
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References [97] J. W. Kolar, H. Ert
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References [129] M. P. Kazmierkowsk
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A1. Description of the simulation p
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A2. Laboratory setup A2. Laboratory
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A2. Laboratory setup A2.3. dSpace D
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A2. Laboratory setup Offset calibra
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A2. Laboratory setup consists of an
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A3. Motor parameters A3. MOTOR PARA
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A4. Notation - u s - stator voltage
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POLITECHNIKA WARSZAWSKA

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