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IMPLEMENTATION OF VECTOR CONTROL STRATEGIES FOR A VARIABLE SPEED DOUBLY-FED INDUCTION MACIIlNE FOR WIND GENERATION SYSTEM
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| Author(s) |
R.S. Pena; J.C. Clare; G.M. Asher |
| Abstract |
An implementation of a PWM Scherbius scheme for a doubly-fed induction machine (DFIM) driven by a wind turbine is presented. Two back-to-back voltage-fed current-regulated inverters are used allowing sub and super synchronous operation with low distortion currents.
The machine is controlled using a vector control technique choosing a referenc1e frame oriented along the stator flux vector position leading to an independent control of the electrical
torque and the rotor excitation current. The front-end converter is also controlled using a vector control approach with a reference frame aligned along the stator voltage vector position resulting in an independent control of the active and reactive power flow between the supply and the converter. The control strategies are tested with the machine working as a variable speed constant frequency generator driven by a wind turbine. Two approaches for optimum speed tracking of the wind turbine are implemented. Experimental results for a prototype
system are presented. |
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| Filename: | Unnamed file |
| Filesize: | 488.4 KB |
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| Type |
Members Only |
| Date |
Last modified 2018-04-10 by System |
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