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Comparative Analysis of Random Modulation Strategies for High-order Harmonic Suppression in Permanent Magnet Servo Drive Systems
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Jingxuan HE1, Lei YANG2, 3, Yuping HUANG2, 3, Jiating ZHU2, 3, Feifei BU1
Missiles and Space Vehicles | 2025, 48(4) : 18 - 25
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Missiles and Space Vehicles | 2025, 48(4): 18-25
• Servo Technology •
Comparative Analysis of Random Modulation Strategies for High-order Harmonic Suppression in Permanent Magnet Servo Drive Systems
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Jingxuan HE1, Lei YANG2, 3, Yuping HUANG2, 3, Jiating ZHU2, 3, Feifei BU1
Affiliations
  • 1. Nanjing University of Aeronautics and Astronautics, College of Automation Engineering, Nanjing, 210016
  • 2. Beijing Institute of Precision Mechatronics and Controls, Beijing, 100076
  • 3. Innovation Center for Control Actuators, Beijing, 100076
Published: 2025-08-25 doi: 10.7654/j.issn.2097-1974.20250402
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To address the issue of harmonic concentration near fixed switching frequencies caused by high-speed switching actions in traditional PWM strategy, the random modulation strategies in the PMSM servo drive system are studied. On the basis of conventional RSF-PWM strategy, DRM-PWM strategy enhances EMC by introducing randomization of the zero-vector action time. However, this strategy struggles to balance EMI suppression effectiveness with system control performance. Subsequently, MARSF-SVPWM strategy is investigated, with a focus on comparing and analyzing the two modulation strategies. Compared to DRM-PWM strategy, MARSF-SVPWM strategy maintains overall spread spectrum range and average switching frequency while narrowing the distribution range of differences between adjacent switching frequencies, thereby further reducing harmonic peaks. Simulation and experimental results demonstrate that MARSF-SVPWM strategy achieves better harmonic dispersion performance compared to DRM-PWM, and maintains a lower impact on system control performance, optimizing the EMI suppression effect.

servo drive system  /  space vector pulse width modulation  /  DRM-PWM  /  MARSF-SVPWM  /  electromagnetic interference
Jingxuan HE, Lei YANG, Yuping HUANG, Jiating ZHU, Feifei BU. Comparative Analysis of Random Modulation Strategies for High-order Harmonic Suppression in Permanent Magnet Servo Drive Systems[J]. Missiles and Space Vehicles, 2025 , 48 (4) : 18 -25 . DOI: 10.7654/j.issn.2097-1974.20250402
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Article Info
doi: 10.7654/j.issn.2097-1974.20250402
  • Receive Date：2025-04-09
  • Online Date：2025-10-27
  • Published：2025-08-25
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History
  • Received：2025-04-09
  • Revised：2025-05-24
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Affiliations
    1. Nanjing University of Aeronautics and Astronautics, College of Automation Engineering, Nanjing, 210016
    2. Beijing Institute of Precision Mechatronics and Controls, Beijing, 100076
    3. Innovation Center for Control Actuators, Beijing, 100076
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表12种不同金属材料的力学参数
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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