永磁辅助磁阻同步电机伺服控制策略研究  

Research on the Servo Control Strategy of Permanent Magnet Assisted Synchronous Reluctance Motor

作　　者：李新华[1] 张杨[1] 王晓光[1] 赵云[1] 

机构地区：[1]湖北工业大学,武汉430068

出　　处：《微特电机》2016年第9期4-6,14,共4页Small & Special Electrical Machines

摘　　要：与钕铁硼永磁同步伺服电机相比,永磁辅助磁阻同步伺服电机制造成本低;转子开槽多,质量轻,惯量小;气隙磁密低,电机高速失控时不存在过压风险,且弱磁性能好。因此,永磁辅助磁阻同步伺服电机的性价比高,在伺服控制领域有良好应用前景。针对永磁辅助磁阻同步伺服电机的特点,根据电机的数学模型对控制策略进行了优化,提出磁链补偿的控制算法和弱磁控制策略,使得电机的电磁转矩与电流呈线性关系,在恒转矩区和扩速区均实现了电机转矩最大控制,并拓宽了调速范围。实验结果验证了所提出控制算法的有效性。Compared with Nd Fe B permanent magnet synchronous servo motor,permanent magnet reluctance servo motor has the advantages of low manufacturing cost,light weight,smaller inertia as more slotted rotor,no risk of over voltage when the motor speed is out of control and easy weakening for low flux density. As a result,permanent magnet reluctance servo motor has good performance with low cost and has a good prospect in the field of servo control. Based on the characteristics of permanent magnet assisted synchronous reluctance servo motor,the control strategy was optimized according to a mathematical model of the motor,flux compensation control algorithm and flux weakening control strategy were proposed.Therefore,the electromagnetic torque and current of the motor is linear and the maximum torque control is achieved in the constant torque region and expansion velocity zones for a broader speed range. Experimental results demonstrate the effectiveness of the proposed control algorithm.

关 键 词：永磁辅助磁阻同步电机 伺服控制 磁链补偿 

分 类 号：TM351[电气工程—电机] TM352