International Journal of Energy and Power Engineering
Volume 4, Issue 3, June 2015, Pages: 146-152
Received: Apr. 22, 2015;
Accepted: May 1, 2015;
Published: May 12, 2015
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M. Magesh Kumar, ME power system engineering, Chandy college of engineering, Tuticorin, India
R. Sundareswaran, AP/EEE Department, Chandy college of engineering, Tuticorin, India
Space Vector Modulation (SVM) based Direct Torque Control (DTC) scheme is used for a variable –speed direct drive Permanent Magnet Synchronous Generator (PMSG) in a wind power generation system. SVM Provides more flexibility for inverter voltage utilization, in order to compensate the torque and flux errors in a smoother way than conventional DTC. SVM based DTC maintains constant switching frequency and it can be applied using closed loop torque control, for minimization of torque ripple. Over the conventional Doubly Fed Induction Generator (DFIG), PMSG has several advantages. The PMSG based on Wind Energy Conversion System (WECS) can be connected to the turbine without gearbox. The gearbox causes in the cost of maintenance, and then it will decrease the weight of the nacelle. Additionally, the generators have a better efficiency and have been slightly cheaper. This provides maximum flexibility, enabling full real and reactive power control. The SVM-DTC regulated PMSG wind turbine can achieve fast torque response, relatively low torque ripples, and extracts the maximum power. The effectiveness of the SVM-DTC control scheme for PMSG has been demonstrated by MATLAB simulation.
M. Magesh Kumar,
PMSG Based Wind Energy Conversion with Space Vector Modulation, International Journal of Energy and Power Engineering.
Vol. 4, No. 3,
2015, pp. 146-152.
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