Junfeng LI, Xiangbo XU, Shao CHEN, Xianzhang WANG, Lei FU, Yahui ZHU. Harmonic vibration suppression in active magnetic bearing systems with adaptive notch filter and repetitive control[J]. Optics and Precision Engineering, 2024, 32(4): 524

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- Optics and Precision Engineering
- Vol. 32, Issue 4, 524 (2024)

Fig. 1. Structure of an AMB rotor system

Fig. 2. Schematic diagram of a coordinate a system

Fig. 3. Schematic diagram of an AMB rotor system with mass imbalance and sensor runout

Fig. 4. Control block diagram of an AMB rotor system with compound method

Fig. 5. Block diagram of the repetition controller G r c ( s ) ![]()
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Fig. 6. Functional block diagram of G A N F ( s ) ![]()
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Fig. 7. Functional block diagram of G c m ( s ) ![]()
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Fig. 8. Phase-frequency characteristic of S 0 ( s ) ![]()
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,S 1 ( s ) ![]()
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and S 2 ( s ) ![]()
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Fig. 9. Experiment system of magnetically suspended rotor

Fig. 10. FFT simulation results of i x ![]()
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and f x ![]()
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before and after algorithm suppression when the speed is 200 Hz

Fig. 11. FFT experimental results of i x ![]()
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and f x ![]()
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before and after algorithm suppression when the speed is 200 Hz
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Table 1. Parameter of magnetically suspended rotor
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Table 2. 转速200 Hz时算法抑制前后的FFT实验结果
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Table 3. 转速250 Hz时算法抑制前后的FFT实验结果

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