CAJ | 학술논문

提出一种用于永磁同步电动机的基于磁链误差矢量补偿的直接转矩控制(EFVC-DTC)策略,给出了磁链误差矢量的估计算法,并将该控制策略下的稳态和动态运行性能与常规DTC进行比较.仿真及实验结果表明EFVC-DTC可以使电力开关器件工作在基本固定的频率上,磁链和转矩脉动显著减小,比常规DTC具有更优越的稳态性能,而动态转矩响应几乎与常规DTC相同.
제출일충용우영자동보전동궤적기우자련오차시량보상적직접전구공제(EFVC-DTC)책략,급출료자련오차시량적고계산법,병장해공제책략하적은태화동태운행성능여상규DTC진행비교.방진급실험결과표명EFVC-DTC가이사전력개관기건공작재기본고정적빈솔상,자련화전구맥동현저감소,비상규DTC구유경우월적은태성능,이동태전구향응궤호여상규DTC상동.
A modified direct torque control strategy based on error flux linkage vector compensation (EFVC-DTC) for permanent magnet synchronous machines (PMSM) is presented. The theoretical background of EFVC-DTC is introduced and an algorithm to estimate the flux linkage error is proposed. The steady state and dynamic performances of EFVC-DTC have been compared with those of the conventional direct torque control (DTC). The simulation and experimental results confirm that both flux linkage and torque ripples are significantly reduced in EFVC-DTC with a fixed switching frequency while the dynamic torque response isalmost as good as the basic DTC.