MA Tiansheng,MENG Yun.Research on Design Technology of High Precision Resolver[J].MICROMOTORS,2023,56(11):1-6.
高精度旋转变压器设计技术研究
- Title:
- Research on Design Technology of High Precision Resolver
- Keywords:
- resolver; finite element simulation; THD; electrical accuracy
- 文献标志码:
- A
- 摘要:
- 针对传统的旋转变压器磁路法设计的不足，提出了一种高精度旋转变压器设计技术研究方法。根据Maxwell软件对旋转变压器磁路有限元仿真分析结果，结合Matlab软件采用极值采样及三次样条插值法对输出信号包络线实现精准提取，进而有效评估输出信号正弦性；运用多角度电磁仿真分析方法以及输出信号“正反切法”并结合Matlab软件实现旋转变压器全角度电气精度解算，进而有效评估旋转变压器转子不同位置下电气精度值。试验结果对比8种不同基座号、不同励磁条件下的旋转变压器实际测试结果，证明其有效性。
- Abstract:
- In response to the shortcomings of traditional magnetic circuit design for resolver, a high-precision modern design method for resolver was studied. Maxwell software was used for finite element simulation of resolver magnetic circuit, and combined with Matlab software, extreme value sampling and cubic spline interpolation were used to accurately extract the envelope of output signal, so as to effectively evaluate the sine of output signal; Using multi-angle electromagnetic simulation analysis method and the "forward and reverse tangent method" of the output signal of the resolver, combined with Matlab software, to achieve the calculation of the electrical accuracy of the resolver at all angles, and effectively evaluate the electrical accuracy values of the resolver rotor at different positions. The experimental results were compared with the actual test results of resolver under 8 different base numbers and excitation conditions, proving its effectiveness.
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