CAJ | 학술논문

在矢量控制的永磁同步电机控制系统中,d轴和q轴电流的控制一般是根据电机数学模型推导的最佳性能轨迹,如恒力矩区的每安培电流最大力矩控制和弱磁区的最大功率控制.文中通过大量的实验,研究了当电机模型使用了不精确的各种电机参数后,对永磁同步电机的性能产生的不同影响.
재시량공제적영자동보전궤공제계통중,d축화q축전류적공제일반시근거전궤수학모형추도적최가성능궤적,여항력구구적매안배전류최대력구공제화약자구적최대공솔공제.문중통과대량적실험,연구료당전궤모형사용료불정학적각충전궤삼수후,대영자동보전궤적성능산생적불동영향.
In vector-controlled PM brushless ac drives,the d-axis and q-axis currents ale controlled according to optimal currentprofilesderivedfromamathematicalmodel,usuallyfor maxllnunl torque per ampere in the constant torque operating range and maximum power in the fieM—weakening range．In this paper,the effect of inaccuracies in the motor parameters which are used to derive the optimal CUlTent profiles is investigated experimentally,with particular reference to the field-weakening performance.