An Improved Control Method for a DFIG in a Wind Turbine under an Unbalanced Grid Voltage Condition
This paper presents a control method, which reduces the pulsating torque and DC voltage problems of a doubly fed induction generator (DFIG)-based wind turbine system. To reduce the torque and power ripple, a current control scheme consisting of a proportional integral (PI) controller is presented in...
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| Veröffentlicht in: | Journal of electrical engineering & technology 2010, Vol.5 (4), p.614-622 |
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| container_title | Journal of electrical engineering & technology |
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| creator | Lee, Sol-Bin Lee, Kyo-Beum Lee, Dong-Choon Kim, Jang-Mok |
| description | This paper presents a control method, which reduces the pulsating torque and DC voltage problems of a doubly fed induction generator (DFIG)-based wind turbine system. To reduce the torque and power ripple, a current control scheme consisting of a proportional integral (PI) controller is presented in a positive synchronously rotating reference frame, which is capable of providing precise current control for a rotor-side converter with separated positive and negative components. The power theory can reduce the oscillation of the DC-link voltage in the grid-side converter. In this paper, the generator model is examined, and simulation results are obtained with a 3 kW DFIG-based wind turbine system to verify the proposed control strategy. |
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| ispartof | Journal of electrical engineering & technology, 2010, Vol.5 (4), p.614-622 |
| issn | 1975-0102 2093-7423 |
| language | kor |
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| source | EZB-FREE-00999 freely available EZB journals |
| title | An Improved Control Method for a DFIG in a Wind Turbine under an Unbalanced Grid Voltage Condition |
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