永磁同步电机开环控制系统稳定性的数学推导与分析

发布时间：2018-03-23 04:33

本文选题：永磁同步电机　切入点：小扰动模型　出处：《电工技术学报》2014年S1期 　论文类型：期刊论文

【摘要】：永磁电机开环控制系统容易出现不稳定的震荡现象。以三相永磁同步电机开环控制系统为例,推导了系统的小扰动数学模型。根据线性系统理论中状态转移矩阵特征根判别稳定性的方法,详细分析了转速、定子电阻、定子电感、励磁磁链、转动惯量以及负载等参数变化时对系统稳定性的影响规律并进行了实验验证。此推导和分析过程可以推广至其它永磁同步电机系统中,结论有助于此类系统参数合理设计与稳定运行。
[Abstract]:The open loop control system of permanent magnet motor is prone to unstable oscillation. Taking the open loop control system of three phase permanent magnet synchronous motor as an example, The small disturbance mathematical model of the system is derived. According to the characteristic roots of the state transfer matrix in the linear system theory, the rotational speed, stator resistance, stator inductance, excitation flux are analyzed in detail. The influence of moment of inertia and load on the stability of the system is verified by experiments. This derivation and analysis process can be extended to other permanent magnet synchronous motor (PMSM) systems. The conclusion is helpful to the reasonable design and stable operation of the system parameters.
【作者单位】：海军工程大学电气工程学院;
【基金】：国家自然科学基金重点资助项目(51177171)
【分类号】：TM341

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