| Abstract |
Modified Trapezoidal Modulation is applied for voltage source converter (VSC) used for wind powergeneration. It reduces the switching loss of the VSC. The simulation feasibility study of the induction generatorsystem has shown that the cost of the converter system can be reduced. The MTM is effective to reduce theswitching loss in the VSC used for exciting the induction generator. The reduction of the total loss inthe VSC is about 30\%. However the generation of harmonic components may have some negativeeffects. They generate the torque ripple in the induction generator and may cause the fatigue collapsefrom the repeated oscillation of the shaft. In the previous investigation, the fixed value of the _ can befound to reduce the torque ripple. This paper shows that the existence of the PFC converter and othercircuits cause the change of the condition depending on the value of _ and the slip s of the inductiongenerator. It is shown by the simulation, that there are the optimum variables, _ and s. |
