CAJ | 학술논문

基于永磁容错电机最优转矩控制系统,提出了一种改进型数字电流滞环控制算法.对传统数字滞环电流的跟随和脉动进行了数学分析,并推导了在一个采样周期内,通过改变占空比D可以使电流跟踪更好,谐波减少.仿真和实验结果表明,取D＜1的恒定占空比与传统数字滞环(D=1)相比,电流跟踪性能得到改善,正弦度更好,验证了该算法的可行性和优越性,该方法也适用于一般永磁电机数字电流滞环控制系统.
기우영자용착전궤최우전구공제계통,제출료일충개진형수자전류체배공제산법.대전통수자체배전류적근수화맥동진행료수학분석,병추도료재일개채양주기내,통과개변점공비D가이사전류근종경호,해파감소.방진화실험결과표명,취D＜1적항정점공비여전통수자체배(D=1)상비,전류근종성능득도개선,정현도경호,험증료해산법적가행성화우월성,해방법야괄용우일반영자전궤수자전류체배공제계통.
A modified digital hysteresis current control algorithm was proposed based on fault-tolerant permanent magnet motor (FTPMM) optimal torque control system.The track pulsation of current with traditional digital hysteresis was analyzed mathematically,also a algorithm was derived in a sampling period that the current track is better and it produces smaller harmonics by changing duty cycle D. The simulation and experiment results show that digital hysteresis control with D＜1 have better current track than traditional hysteresis control with D=1 and better sinusoid. which verify the feasibility and superiority of the algorithm. The algorithm is also suitable for digital current hysteresis control of a common permanent motor.