一种用于旋转变压器的合成位置解码技术,基于旋转器位置测量系统
Jun Cai1,2, Xiaolan Dou1, Zeyuan Liu3
1C-MEIC, CICAEET, and the School of Automation,Nanjing University of Information Science and Technology, Nanjing 210044, China.
The Review of scientific instruments
|April 25, 2024
概括
这项研究引入了一种用于电机控制的新型旋转变压器位置解码方案,消除了专门的芯片. 该方法准确地将模拟信号转换为各种平台的数字编码器输出.
科学领域:
- 电气工程 电气工程
- 控制系统 控制系统
- 机器人技术 机器人技术 机器人技术
背景情况:
- 旋转变压器对于电机驱动器的位置传感至关重要.
- 传统的解码方法通常依赖于专门的,昂贵的集成电路.
- 集成各种电机驱动平台需要灵活的位置解码解决方案.
研究的目的:
- 提出一个基于软件的旋转变压器位置解码方案.
- 为了消除对电机驱动控制中的专用解码芯片的需求.
- 通过一种新的信号转换方法,实现与各种电机驱动控制平台的兼容性.
主要方法:
- 设计了一个简单的模拟激发和信号调节电路.
- 使用软件解调和相锁循环 (PLL) 进行位置信号解码.
- 开发了一种单周期分区平均方法,用于将角度位置转换为类似A/B/Z编码器的信号.
主要成果:
- 拟议的方案成功解码了无需专门芯片的旋转变压器信号.
- 在STM32F407平台上的实验验证证证了该方案的有效性和准确性.
- 基于软件的方法显示了与传统基于芯片的解码结果相似的结果.
结论:
- 旋转变压器位置解码方案提供了一个具有成本效益和灵活的替代方案.
- 该方法适用于各种电机驱动控制应用.
- 基于软件的解码提高了不同硬件平台的适应性.
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