CAJ | 학술논문

为更好地实现三相电压型整流器数字化控制,从三相电压型PWM整流器(VSR)主电路拓扑结构出发,以数字化控制技术为切入点,以TMS320LF2812为控制核心,根据一种空间矢量算法,简化了DSP芯片的软件设计.并在此基础上给出了由DSP芯片控制的三相电压型PWM整流器的控制系统.详细介绍了交流电压采样、直流电压检测、IPM驱动电路、PI调节器、空间矢量脉宽调制(SVPWM)等控制模块的设计流程及相应的软件控制框图.最后利用Matlab/simulink工具箱建立了三相电压型PWM整流器的仿真模型,并进行了仿真.仿真结果证明:基于DSP控制的三相电压型整流器实现了单位功率因数控制,具有优良的动态和静态性能.
위경호지실현삼상전압형정류기수자화공제,종삼상전압형PWM정류기(VSR)주전로탁복결구출발,이수자화공제기술위절입점,이TMS320LF2812위공제핵심,근거일충공간시량산법,간화료DSP심편적연건설계.병재차기출상급출료유DSP심편공제적삼상전압형PWM정류기적공제계통.상세개소료교류전압채양、직류전압검측、IPM구동전로、PI조절기、공간시량맥관조제(SVPWM)등공제모괴적설계류정급상응적연건공제광도.최후이용Matlab/simulink공구상건립료삼상전압형PWM정류기적방진모형,병진행료방진.방진결과증명:기우DSP공제적삼상전압형정류기실현료단위공솔인수공제,구유우량적동태화정태성능.
The software design of its control core,DSP TMS320LF2812,is simplified by applying the digital control technology and space vector algorithm to better implement the digital control of a three-phase VSR (Voltage Source Rectifier) according to its main circuit topology,based on which,the DSP-based control system of three-phase voltage-type PWM rectifier is given. The design and relevant block diagrams are detailed for the control modules of AC voltage sampling,DC voltage detection,IPM drive circuit,PI regulator,SVPWM(Space Vector Pulse Width Modulation),etc. Its simulation model is established in Matlab /Simulink and the simulative results show that,the DSP-controlled VSR implements unity power factor control with excellent dynamic and static performance.