CAJ | 학술논문

针对传统的异步电动机直接转矩控制中存在低速运行时电动机转矩脉动较大的问题，提出了一种基于模糊控制的直接转矩控制系统模型。该模型采用三输入单输出的结构，将磁链相位角、磁链幅值误差和转矩误差作为模糊变量，并对其进行模糊分级，以此达到优化空间电压矢量选择的目的。并在Matlab/simulink中进行仿真，结果表明该方法有效的减小了转矩脉动，同时有更好的速度响应。
침대전통적이보전동궤직접전구공제중존재저속운행시전동궤전구맥동교대적문제，제출료일충기우모호공제적직접전구공제계통모형。해모형채용삼수입단수출적결구，장자련상위각、자련폭치오차화전구오차작위모호변량，병대기진행모호분급，이차체도우화공간전압시량선택적목적。병재Matlab/simulink중진행방진，결과표명해방법유효적감소료전구맥동，동시유경호적속도향응。
In the direct torque control of traditional asynchronous motor, there lies a big problem of its ripple when it is running at a low speed. Hence a model is put forward of direct torque control based on fuzzy control. The model adopts the structure of the three inputs and single output with the flux linkage phase angle and flux linkage amplitude error and the torque error as fuzzy variables. Fuzzy classification is also used for them to achieve the goal of optimization of space voltage vector selection. And Matlab/simulink is used in the simulation. The results show that this method effectively reduces the torque ripple, and at the same time a better speed in response can be achieved.