摘要
研究了无刷直流电动机换相转矩波动的抑制问题,提出了将模糊控制器与电流滞环控制器相结合的控制方法．当电机换相时．某相电流上升的速率与另一相电流下降的速率产生偏差,采用模糊电流滞环控制器进行控制,实现回路总电流幅值不变,达到抑制换相转矩波动的目的．系统突加负载后,经智能模糊控制,系统在较短时间内达到新的平衡,仿真结果表明该方法较传统电流滞环控制具有更好的动态与静态特性．
To minimize commutation torque ripple for brushless DC motor （BLDCM）, a controller method which combines fuzzy controller with current hysteresis controller is presented. During the phase commutation of the BLDCM, if the rise velocity of one phase eurrent is unequal to the fall velocity of another one, the fuzzy current hysteresis controller will work to keep the total current amplitude unchanged in the circuit, which can restrain the commutation torque ripple, When the load suddenly increases, by intelligent fuzzy control, the system comes into a new equilibrium in a short time. The simulation shows that the proposed method has better dynamic and static characteristics than the traditional one.
出处
《天津大学学报》
EI
CAS
CSCD
北大核心
2006年第9期1105-1109,共5页
Journal of Tianjin University(Science and Technology)
基金
天津大学"面向21世纪教育振兴行动计划"资助项目.
