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A new hybrid excitation permanent machine-doubly fed hybrid excitation permanent magnet synchronous machine without rotor winding is presented. The structure, mathematic model and operation principle of the machine are introduced. It is shown that excitation regulation can be realized by changing the current of stator control winding. The field control performance in the generator and motor operation...
A simple and intuitive Doubly Fed Induction Generator (DFIG) predictive rotor current control scheme is presented. Predictive control of an Indirect Matrix Converter (IMC) is combined with predictive rotor current control of a DFIG to achieve a very good dynamic response as the rotor currents smoothly follow the applied reference in a ±30% range of the generator nominal rpm. Simulation results are...
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