Abstract

The control of Doubly-Fed Induction Generator can be achieved through various techniques. At present, many works published in the literature show the application of Voltage Source Converter in conjunction with Doubly-Fed Induction Generator. Recently published articles rarely involve the operational characteristics and technical aspects of the Doubly-Fed Induction Generator Current Source Converter systems. The dissertation presents a new development of control methods for Doubly-Fed Induction Generator connected to Current Source Converter. Four novel non-linear multiscalar control methods for power flow for Doubly-Fed Induction Generator connected to Current Source Converter are proposed by the author. The main contributions are new feedback that allow linearization of the nonlinear object and decoupling in active and reactive power control paths. Furthermore, new control algorithms allow to independently regulate the stator active and reactive powers. The entire development cycle is presented, which includes simulations as well as experimental tests of the implemented control methods for the complete generator system. Their responses to changes in active and reactive power, transition through synchronous speed as well as grid voltage dips were analyzed.

Author (1)