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Vector Control(VC) and Direct Power Control (DPC) of Doubly Fed Induction Generator(DFIG) is studied in this paper. Grid connection and steady state running for DFIG are discussed based on VC and DPC. Two kinds of control strategies of DFIG both have good performance during the cutting-in grid. This paper uses instantaneous reactive power theory of three-phase circuits to the DFIG control. DPC idle...
In this paper, according to the characteristic of AC-excited variable speed constant frequency wind turbine generation, stator voltage orientation vector control strategy is adopted in double-fed induction generator (DFIG). Firstly, the paper studies the running characters of DFIG, and the principle of DFIG under no-load cutting-in condition. Then according to the mathematical model of DFIG under...
In order to achieve the target of no-load cutting-in smoothness and security of double-fed induction wind generator, a control strategy based on combination of integral variable structure control and field-oriented vector control is presented. So as to get a better dynamic performance and robustness in disturbance, the sliding model variable structure controller is used to control rotor current before...
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