基于忆阻器非线性特性的无速度传感器电机转速混沌检测新技术

项目名称： 基于忆阻器非线性特性的无速度传感器电机转速混沌检测新技术

项目编号： No.51277035

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 电工技术

项目作者： 杨汝

作者单位： 广州大学

项目金额： 85万元

中文摘要： 随着对电机控制性能要求的提高，特别是对低速性能要求的提高，如何解决极低转速的检测，便成为高性能电动机控制领域的关键性课题，本项目利用混沌的初值敏感和参数敏感彻底、高效、低成本地解决了这个难题。 本项目利用混沌的初值敏感和参数敏感完成噪声背景下电机转速微变量的测量。基于符号动力学理论高精度地表述无速度传感器电机转速；根据混沌分叉理论选取无速度传感器电机的最佳混沌检测阈值；运用混沌状态迁移识别得到无速度传感器电机转速微变量的高精度检测；应用忆阻器的非线性特性建立混沌振子，将忆阻器与交叉开关阵列技术结合，在一定的范围内，对电路的拓扑或参数进行重构，简化转速宽范围测量的混沌振子；并利用广义胞映射分析无速度传感器混沌测速系统的噪声免疫性。 本项目运用近年混沌非线性科学的研究成果从机理上研究无速度传感器电机噪声背景下转速的高精度宽范围混检测，彻底解决极低转速测不准的难题，是一种全新的理论和技术。

中文关键词： 符号动力学；初值敏感；无速度传感器电机；胞映射；忆阻器

英文摘要： With the improvement of control performance of motor, especially the performance of low speed, how to detect the extremely low speed has become a key task in the field of high-performance motor control. Based on chaos sensitivity of initial values and parameters the proposal solves the task thoroughly 、high-efficiency and low-cost. The proposal fulfills detection of minute variety of motor speed under noise background based on chaos sensitivity of initial values and parameters. High-precise formulations of the speed of sensor less motor are gotten based on symbolic dynamics; The best thresholds of chaos detedtion of motor speed are gained by the theory of chaos bifurcation; The technology of discrimination of chaos state transition is used to gain high-precise measurement of speed; the nonlinear characteristics of memrior are used to establish chaos oscillator, The integration of memrior and the technology of cross switch display can reconfiguration the topology of circuit and parameters, simplify the chaos oscillator used in wide-scope speed measurement. The generalized cell mapping is used to analyze the noise immunity in the chaos speed detection of sensor less motor. The proposal utilizes the recent achievements of chaos theory; it researches high-precise wide-scope chaos speed detection of sensor less moto

英文关键词： Symbolic dynamics；Sensitive to initial value；Speed sensorless motor；Cell mapping；Memory device