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首页> 外文期刊>IEEE / ASME Transactions on Mechatronics >Sensorless Temperature Estimation and Control of Shape Memory Alloy Actuators Using Thermoelectric Devices
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Sensorless Temperature Estimation and Control of Shape Memory Alloy Actuators Using Thermoelectric Devices

机译:使用热电器件的形状记忆合金致动器的无传感器温度估算和控制

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摘要

A method for feedback control of the temperature of shape memory alloy (SMA) actuators without using dedicated temperature sensors is presented in this paper. Thermoelectric devices (TEDs) are used to simultaneously sense and control the SMA temperature by alternating between driving the TEDs via the Peltier effect and measuring the local temperature difference across the TEDs via the Seebeck effect. A low-order ARX model that estimates the SMA temperature is derived. This model is used for feedback control of the SMA temperature in lieu of an external temperature sensor. A controller is implemented, which demonstrates the performance of the estimation technique. This method will enable the production of large arrays of TED-driven SMA tendon actuators, particularly for large DOF robotic systems.
机译:本文提出了一种无需使用专用温度传感器即可对形状记忆合金(SMA)执行器进行温度反馈控制的方法。热电设备(TED)用于通过珀尔帖效应驱动TED和通过塞贝克效应测量TED两端的局部温差之间的交替来同时感测和控制SMA温度。推导出估计SMA温度的低阶ARX模型。该模型代替外部温度传感器用于SMA温度的反馈控制。实现了一个控制器,该控制器演示了估算技术的性能。这种方法将能够生产大阵列的TED驱动的SMA腱执行器,特别是用于大型自由度机器人系统。

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