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The modeling and control of a variable speed cascaded doubly fed induction generator feeding an isolated grid in aircraft application is presented. Despite the complexity of the generator an efficient controller can be elaborated based on the theory of a unified reference frame vector representation. An indirect decoupled vector control of terminal voltage is implemented using field orientation techniques...
A synchronous machine model with saturation and cross saturation and an arbitrary rotor network representation that uses a voltage-behind-reactance representation for both the stator windings and the field winding of the machine is proposed. This allows the stator windings and the field winding to be represented as branches in a circuit solver, permitting straightforward simulation with connected...
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