The frequency converter losses

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Table of contents

1. Background
1.1 Introduction
1.2 The general theory of electrical machines
1.3 Problem formulation
2. Aim
3. Method
3.1 Simulation preparations
3.2 Simulating and starting the motor in Matlab
3.2.1 The induction motor model
3.2.2 Creating the subsystem:
3.3 The starting method VVVF simulation
3.3.1 Frequency converter losses
3.3.2 Simulating at f = 17 Hz
3.3.3 Simulating at f = 23 Hz
3.3.4 Simulating at f = 35 Hz
4. Discussion and conclusions
4.1 VVVF results
4.2 Direct starting results
4.3 Soft starting results
4.4 General clarification of all the starting methods
4.5 Conclusions
References
Appendix