The Design And Simulation Of Grid-Connected Inverter For Permanet Magnet Wind Turbine Generator

With the increasement of the energy consuming, worsening of ecosystem environment and the exaltation of the human environmental protection consciousness, many countries around the world are looking for a kind of developing and new energies without pollution positively. The wind energy is used as a kind of efficient new energy whithout pollution, a kind of substitute of the normal regulations energy of this century. Currently,wind energy grid connected generates electricity the technique among them have become the most prospected, turn to the main form of the renewable energy application.Today,MW wind generators substitute 600kw generators gradually and become the popular units of international market of wind power generation.The trends of units are variable speed constant frequency and large-scale and pitch control.There are many different generators which are variable speed constant frequency generator.In this paper the unit is fully-fed magnet wind turbine Generator.The magnet wind turbine generator grid-connected inverter is the key component of connected system.The main function of this component is inverting the DC to three-level volage and connecting the electric net.In the hardware aspects,this text analyses the voltage-source inverter and current-source inverters.In the same time this paper gives the strongpoints and weakness of them.In order to find the best way to induce the harmonic,the paper gives three control strategy, that is the voltage-source inverter adopt space vector PWM(SVPWM)and singual PWM(SPWM) and three-level inverter adopt singual PWM(SPWM). Then the paper makes use of MATLAB to simulate power electric and gives the way to control active power and reactive power.In the sofeware aspects,the text introduces DSP chip TMS320F2812 and space vector PWM(SVPWM) and programming with c language on CCS2.0 software.