April 2019
Oxidation Communications;2019, Vol. 42 Issue 2, p249
Academic Journal
Out of all renewable energy sources, wind energy seems to be prominent and quite promising for electric power generation. Wind energy conversion system (WECS) has been found to be economic, compared to the cost of fossil fuels which are rising at a much faster rate. Therefore, the research of WECS has regained importance, as they are particularly suitable for wind power plants. This thesis presents the modelling and simulation of variable speed wind turbine driven Permanent magnet synchronous generator (PMSG) connected to grid through Matrix converter (MC). MC is used to convert three phase Alternating current (AC) variable frequency variable rotor voltages into constant frequency AC voltage. Modelling of PMSG is done using its dynamic equations and then MC is integrated for the direct conversion to constant frequency, variable voltage output. The simulation of a 1hp PMSG-based Grid Connected Wind Energy Conversion System (GCWECS) is carried out using MATLAB/SIMULINK. Thus by using the single stage conversion the harmonics produced in the WECS is considerably reduced. By proper switching of MC, the output frequency of the PMSG in grid side is 50 Hz and the voltage is constant even the input is variable frequencies.


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