基于储备池计算的电机系统混沌预测与同步研究

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振动与冲击 ›› 2021, Vol. 40 ›› Issue (16) : 199-203.

论文

陈豪昌,韦笃取

作者信息 +

Chaos prediction and synchronization of a motor system based on reservoir computing

CHEN Haochang,WEI Duqu

Author information +

文章历史 +

摘要

已有的研究表明电机系统在某些参数及工作条件下会出现的混沌振荡，是电机运行失稳的重要因素之一。因此研究电机系统混沌预测,为及早提出保护措施,确保电机系统稳定运行具有重要意义。提出一种基于储备池计算的机器学方法对永磁同步电机(PMSM)的混沌行为进行预测,研究结果表明一个训练好的神经网络,即使在电机系统数学模型未知的情况下,只依据状态变量的时间序列数据也能预测系统的混沌行为,并且只需要通过一个状态变量就能够实现受训神经网络与电机系统之间的混沌同步。此外，该方法对外界环境扰动具有鲁棒性。以永磁同步电动机为例,利用数值仿真验证了该方法的有效性。

Abstract

The existing literature shows that a motor system will appear chaotic oscillation when their systemic parameters fall into a certain area or under some operating conditions, which can lead to the instability and the collapse of the system.Therefore, it is of great significance to study the chaos prediction and make a protection measure to ensure the stable operation of the motor system.The paper proposed a mechanical method based on reservoir computing to predict the chaotic behavior of a permanent magnet synchronous motor (PMSM).The research results show that even if the mathematical model of the motor system under the condition is unknown, a trained neural network can predict chaotic behavior of the motor system only based on time series data of state variables.It was also found that reservoir computing can realize chaos synchronization between the trained neural network and the motor system by sending just a single variable.In addition, the method is robust to external environmental disturbances.Lastly, taking the permanent magnet synchronous motor as an example, the effectiveness of the proposed method was verfied by means of numerical simulation.

导出引用

陈豪昌,韦笃取. 基于储备池计算的电机系统混沌预测与同步研究[J]. 振动与冲击, 2021, 40(16): 199-203

CHEN Haochang,WEI Duqu . Chaos prediction and synchronization of a motor system based on reservoir computing[J]. Journal of Vibration and Shock, 2021, 40(16): 199-203

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