| Title |
The Vibration Suppression using Reactive Power Compensator for Speed Control of Parallel Connected Dual Fan Motors fed by a Single Inverter |
| Authors |
윤철(Yun, Chul) ; 권우현(Kwon, Woo-Hyen) ; 조내수(Cho, Nae-Soo) |
| DOI |
https://doi.org/10.5370/KIEE.2016.65.12.2008 |
| Keywords |
Dual Fan Motors ; SIMM ; Select control ; Reactive Power Compensator |
| Abstract |
This paper proposes analysis and suppression method for reactive power vibration of the slave motor caused by back-EMF mismatch between the master and the slave motor and stator resistance during middle-low speed operation. The master and slave motors are parallel connected dual SPMSMs(Surface mounted Permanent Magnet Synchronous Motors) fed by a single inverter. To suppress vibration of reactive power, RPC(Reactive Power Compensator) proposed in this paper analyzes flux-axis current vibration of the slave motor that occurs in middle-low speed operation using a mathematical model of the fan motor. And RPC adds vibration components detected from flux-axis current of the slave motor to flux-axis current of the master motor. The results of experiment conducted verify the efficacy of the proposed method. |