车载飞轮电池用电涡流传感器的研究

发布时间：2018-11-10 08:59

【摘要】：电涡流传感器是一种非接触测量传感器,具有其他传感器无可比拟的优点。本文以满足支承车载飞轮电池的磁悬浮轴承系统的使用要求为目的,对电涡流传感器进行了研究。阐述了电涡流传感器的工作原理,利用ANSYS软件,建立了电涡流传感器探头的参数化有限元模型。通过理论推导与有限元模型仿真分析相结合的方法,分析了探头参数对电涡流传感器输出的影响,并确定了探头的最优设计参数。提出利用印制电路板的多层螺旋导线作为探头线圈,制作了基于印制电路板的电涡流传感器探头。提出了电涡流传感器的电磁干扰、温漂和时漂的解决方案。设计了在径向方向放置探头获取转子轴向振动信息的结构方案以及相应的传感器二次转换电路。静态和动态特性测试结果表明,本文所研制的电涡流传感器的线性测量范围为0.8mm,灵敏度为7v/mm,带宽为1.6KHZ,基于印制电路板的电涡流传感器探头制作简单,一致性较好。实验结果表明,采用本文提出的解决方案,能够有效抑制电涡流传感器的电磁干扰、温漂和时漂,传感器输出稳定性明显提高,采用本文设计的结构方案以及相应的传感器二次转换电路可以实现在径向方向测量转子的轴向位移。车载飞轮电池的运行结果表明,本文所研制的电涡流传感器能够满足其磁悬浮轴承系统的使用要求。
[Abstract]:Eddy current sensor is a non-contact measurement sensor, which has unparalleled advantages over other sensors. In this paper, the eddy current sensor is studied in order to meet the requirements of the magnetic bearing system supporting the vehicle flywheel battery. The working principle of eddy current sensor is expounded and the parameterized finite element model of eddy current sensor probe is established by using ANSYS software. The influence of probe parameters on the output of eddy current sensor is analyzed by combining theoretical derivation and finite element model simulation. The optimum design parameters of the probe are determined. The multilayer spiral wire of printed circuit board (PCB) is used as probe coil to fabricate eddy current sensor probe based on printed circuit board (PCB). The solutions of electromagnetic interference, temperature drift and time drift of eddy current sensor are presented. The structure of the rotor axial vibration information was designed by placing the probe in the radial direction and the corresponding secondary conversion circuit of the sensor was designed. The test results of static and dynamic characteristics show that the linear measurement range of the eddy current sensor is 0.8 mm, the sensitivity is 7 v / r mm, the bandwidth is 1.6 KHZ, and the eddy current sensor probe based on printed circuit board is simple to fabricate. Consistency is better. The experimental results show that the proposed solution can effectively suppress the electromagnetic interference of the eddy current sensor, temperature drift and time drift, and the output stability of the sensor is obviously improved. The axial displacement of the rotor can be measured in the radial direction by using the structural scheme designed in this paper and the corresponding secondary conversion circuit of the sensor. The results of vehicle flywheel battery operation show that the eddy current sensor developed in this paper can meet the requirements of the magnetic bearing system.
【学位授予单位】：南京航空航天大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U463.633;TP212

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