A DTC Algorithm for Induction Motor Drives with 3-level Diode-Clamped Inverters
This paper presents a novel Direct Torque Control (DTC) algorithm for induction motor electrical drives supplied by 3-level diode clamped inverters. It is the natural extension of the classic Switching Table (ST) based DTC, modified for a 3-level inverter supply. It presents also a very simple algor...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
ESRGroups
2005-12-01
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| Series: | Journal of Electrical Systems |
| Subjects: | |
| Online Access: | http://journal.esrgroups.org/jes/papers/1_4_2 |
| Summary: | This paper presents a novel Direct Torque Control (DTC) algorithm for induction motor electrical drives supplied by 3-level diode clamped inverters. It is the natural extension of the classic Switching Table (ST) based DTC, modified for a 3-level inverter supply. It presents also a very simple algorithm for the minimization of the capacitor voltage ripple. Results obtained with numerical simulations show that the employment of a 3-level inverter in such a control scheme permits to obtain the same dynamical performances as those obtained with a 2-level inverter with resulting lower torque and flux ripples as well as a lower harmonic content in the stator voltages and currents. Some considerations about the consequent benefits as for EMC of this drive are also presented. |
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| ISSN: | 1112-5209 |