永磁同步电动机调速系统PI控制器参数整定方法

发布时间：2018-01-05 14:02

本文关键词：永磁同步电动机调速系统PI控制器参数整定方法　出处：《电工技术学报》2014年05期 　论文类型：期刊论文

【摘要】：针对永磁同步电机(PMSM)调速系统,基于PMSM调速系统的频域模型,推导出了电流和速度PI控制器参数的解析计算式,推导过程考虑了逆变器、死区、延时、反馈滤波器及其他非理想因素的影响,并结合工程实际,明确界定了电流环和速度环的开环截止频率和相位裕度的合理取值范围。根据系统性能要求,设定期望的电流环和速度环开环截止频率和相位裕度,通过所提出方法,可解析计算PI控制器参数;也可根据设定的PI参数,反计算系统的开环截止频率和相位裕度,对设定的PI参数的性能进行预评估。该整定方法建立了系统频域参数、控制器参数和系统时域性能的联系,整定目标直观明确,且参数物理意义明确,计算过程简单易实现。文中通过大量的仿真表明了所提出方法的正确性,实验结果也验证了该整定算法有效可行。
[Abstract]:For permanent magnet synchronous motor (PMSM) control system, PMSM control system based on frequency domain model, deduced the analytic formula of current and speed PI controller parameters are taken into account, inverter, dead time, time delay, feedback filter and other non ideal factors, and combined with the engineering practice, clearly defines the reasonable range open loop current loop and speed loop cut-off frequency and phase margin. According to the performance requirements of the system, set the desired current loop and speed loop open loop cut-off frequency and phase margin, the proposed method can analysis the parameters of PI controller; can also according to the PI parameters, the inverse computation of the open loop system the cut-off frequency and phase margin, pre assessment on the performance of the PI parameters. This method established the system frequency parameters, performance parameters and time domain controller system, setting the goal clear and intuitive. The physical meaning of the parameters is clear, the calculation process is simple and easy to implement. In this paper, the correctness of the proposed method is demonstrated by a large number of simulations, and the experimental results also verify that the algorithm is effective and feasible.

【作者单位】：北京航空航天大学自动化科学与电气工程学院;
【基金】：国家自然科学基金(50807002) 电力系统国家重点实验室(SKLD10KM05)资助项目
【分类号】：TM341
【正文快照】： 1引言永磁同步电机(PMSM)因具有高功率密度、高转矩惯量比和宽调速范围等优点,在工业机器人、数控机床和作动系统等运动控制领域得到了广泛应用[1,2]。工程中PMSM驱动系统多采用结构简单、易于实现、性能良好、对控制对象参数变化不敏感的PI控制器[3]。但若PI控制器的参数设置

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