CAJ | 학술논문

为了提高内置式永磁同步电机(IPMSM)直接转矩控制系统的动态品质及鲁棒性，使系统在暂态、稳态过程中具有更优良的特性，提出了将直接转矩控制与线性-滑模变结构控制相结合的策略，分别采用转矩、磁链线性(PI)-滑模控制器取代了传统直接转矩控制中的滞环或PI控制器，该控制器分别根据转矩、磁链给定量与反馈量的误差动态调节平衡增益，使其实现线性控制与滑模开关控制的平衡关系，满足系统的控制需求。理论分析及实验结果表明，这种控制策略可极大地减小了磁链及转矩脉动，增大了调速范围，同时仍保持直接转矩控制固有的转矩快速响应特征，在负载恒定或突变条件下系统具有快速跟踪、鲁棒性强的优点，有效改善了系统的动、静态运行性能。
위료제고내치식영자동보전궤(IPMSM)직접전구공제계통적동태품질급로봉성，사계통재잠태、은태과정중구유경우량적특성，제출료장직접전구공제여선성-활모변결구공제상결합적책략，분별채용전구、자련선성(PI)-활모공제기취대료전통직접전구공제중적체배혹PI공제기，해공제기분별근거전구、자련급정량여반궤량적오차동태조절평형증익，사기실현선성공제여활모개관공제적평형관계，만족계통적공제수구。이론분석급실험결과표명，저충공제책략가겁대지감소료자련급전구맥동，증대료조속범위，동시잉보지직접전구공제고유적전구쾌속향응특정，재부재항정혹돌변조건하계통구유쾌속근종、로봉성강적우점，유효개선료계통적동、정태운행성능。
In order to improve the robustness and performance of the permanent magnet synchronous machine drives system based on the direct torque control method,a direct torque and linear sliding-mode variable structure control of PMSM drive is presented. The drive employs two new controllers, to replace conventional hysteresis controllers, to improve response of the drive and to reduce the impulsive motion of the torque and flux by regulation the balance gain between the linear and nonlinear sliding-mode. Theoretical analysis and experiments confirm the strong robustness and the ability of tracking load variation quickly, preserve quickly dynamic torque response merit, which effectively improves dynamic and static performance.