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Abstract
In this article, a direct grid-connected servo system without a dc-link capacitor is proposed for multiphase machines. First, the modeling and field-oriented control are elaborated for the direct grid-connected multiphase servo system. Then, the space current vector modulation and the vector coordination under pulsewidth-modulated (PWM) dc-link voltage are introduced, which is to ensure the safe current commutation. Moreover, the torque and harmonic current control are implemented independently with vector space decomposition. Finally, both simulation and experimental results are given to verify the effectiveness and validity of the proposed servo system.
| Original language | English |
|---|---|
| Article number | 7500106 |
| Number of pages | 6 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 56 |
| Issue number | 1 |
| Online published | 20 Dec 2019 |
| DOIs | |
| Publication status | Published - Jan 2020 |
Funding
ACKNOWLEDGMENT This work was supported in part by the ITF Tier3 of Innovation and Technology Commission (ITC) of HKSAR, China, under Project ITS/353/16 and in part by the Research Grants Council of HKSAR, China, under Project CityU21201216.
Research Keywords
- Field-oriented control
- grid connected
- multiphase machine
- permanent-magnet motor
- servo system
RGC Funding Information
- RGC-funded
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- 1 Finished
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ECS: Development of Novel High-performance Double-stator Motor Drives for Direct-drive Robotics
LIU, C. (Principal Investigator / Project Coordinator)
1/10/16 → 15/09/20
Project: Research