CAJ | 학술논문

主要研究了一种新的基于SVPWM的三相电压型整流器预测直接功率控制。这种预测直接功率控制以虚拟磁链为核心，省去了交流侧电压传感器，同时解决了传统的开关直接功率控制开关频率不固定的缺点，继承了传统直接功率控制无需旋转坐标变换，控制方案简单明确的特点。并且与其他改进方案相比，也不需要加入PI环节或是电压矢量定向环节。通过RT-LAB进行仿真，并与传统的控制方案进行对比，突出新控制方案在改善THD和控制功率波动方面的优越性。
주요연구료일충신적기우SVPWM적삼상전압형정류기예측직접공솔공제。저충예측직접공솔공제이허의자련위핵심，성거료교류측전압전감기，동시해결료전통적개관직접공솔공제개관빈솔불고정적결점，계승료전통직접공솔공제무수선전좌표변환，공제방안간단명학적특점。병차여기타개진방안상비，야불수요가입PI배절혹시전압시량정향배절。통과RT-LAB진행방진，병여전통적공제방안진행대비，돌출신공제방안재개선THD화공제공솔파동방면적우월성。
A novel predictive direct power control scheme of three-phase voltage rectifier based on SVPWM was presented. The predictive direct power control based on virtual flux can obtain a fixed switch frequency instead of variable switching frequency in conventional look-up table direct power control without AC voltage sensors, and it is stil simple and clear implemented in the stationary reference frame directly. It does not need PI control ers or voltage-oriented control ers compared to other developed control schemes. The simulations using RT-LAB was made. The results show the excellence of the improving the current THD and control ing the power fluctuation of the novel scheme compared to the traditional control schemes.