触点动态接触电阻时间序列混沌预测

发布时间：2018-03-23 14:03

本文选题：动态接触电阻　切入点：时间序列　出处：《电工技术学报》2014年09期

【摘要】：触点电接触性能的稳定性直接影响继电器乃至整个系统的可靠性,而接触电阻是表征触点电接触性能的重要参数之一,基于混沌理论对触点动态接触电阻峰值时间序列进行分析,并验证了混沌预测的有效性。首先对动态接触电阻峰值时间序列数据进行相空间重构,确定了接触电阻序列的最佳嵌入维数m和延迟时间?。在说明动态接触电阻峰值时间序列具有混沌特性的基础上,根据最大Lyapunov指数对触点动态接触电阻峰值时间序列进行了混沌预测,并给出了混沌预测的可靠范围。预测结果与试验数据对比发现,混沌预测短期效果较好。本文分析了触点动态接触电阻峰值时间序列的混沌特性,为触点电接触可靠性研究提供了新思路。
[Abstract]:The stability of contact contact performance directly affects the reliability of relay and even the whole system, and contact resistance is one of the important parameters to characterize the contact performance. Based on chaos theory, the peak time series of contact dynamic contact resistance is analyzed, and the validity of chaotic prediction is verified. Firstly, the phase space reconstruction of dynamic contact resistance peak time series data is carried out. The optimum embedding dimension m and delay time of contact resistance sequence are determined. On the basis of the chaotic characteristic of the peak time series of dynamic contact resistance, the chaotic prediction of the peak time series of contact dynamic contact resistance is carried out according to the maximum Lyapunov exponent. The reliability range of chaotic prediction is given. Compared with experimental data, chaotic prediction results show that the short-term effect of chaotic prediction is better. The chaotic characteristics of contact dynamic contact resistance peak time series are analyzed in this paper. It provides a new idea for the study of contact reliability.
【作者单位】：河北工业大学电磁场与电器可靠性省部共建重点实验室;
【基金】：国家自然科学基金(61072100、51377044) 天津市自然科学基金(12JCYBJC12400) 河北省高等学校科学技术研究重点(ZD2010119) 河北省高等学校创新团队领军人才培育计划(LJRC003)资助项目
【分类号】：TM58

【相似文献】