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首页> 外文会议>2014 International Conference on Mechatronics and Control >ESO-based resolver to digital converter
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ESO-based resolver to digital converter

机译：基于ESO的旋变数字转换器

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摘要

Resolvers are rugged absolute position transducers which are widely used in various servo systems. The main shortcomings of resolvers are their nonlinear output signals, and therefore additional process is needed to obtain the linear angular signal. This paper presents a new resolver to digital converter (RDC) design method based on the extended state observer (ESO) with the advantages of noise insensitivity and higher tracking accuracy. An alternative demodulation strategy is also suggested where the output of resolver is sampled at two critical points. Such a treatment can realize demodulate resolver's output more accurately. Finally, simulation and experiment results are given with respect to a full FPGA digital system.
机译：旋转变压器是坚固的绝对位置传感器，广泛用于各种伺服系统中。旋转变压器的主要缺点是其非线性输出信号，因此需要额外的过程才能获得线性角信号。本文提出了一种基于扩展状态观测器（ESO）的解析器数字转换器（RDC）设计新方法，该方法具有噪声不敏感，跟踪精度高的优点。还建议了另一种解调策略，其中在两个关键点对解析器的输出进行采样。这样的处理可以更准确地实现对分解器输出的解调。最后，针对完整的FPGA数字系统给出了仿真和实验结果。

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