[논문]6상 영구자석 동기전동기의 고장대응운전을 위한 3상 구동시스템 전환 알고리즘

김성훈; 장원진; 조관열; 김학원

doi:10.6113/tkpe.2021.26.4.256

6상 영구자석 동기전동기의 고장대응운전을 위한 3상 구동시스템 전환 알고리즘
Three Phase Drive Transfer Algorithm for Fault Tolerance Control of Six-Phase PMSM 원문보기

전력전자학회 논문지 = The Transactions of the Korean Institute of Power Electronics, v.26 no.4, 2021년, pp.256 - 262

김성훈 (Dept. of Electronic Engineering, Korea Nat'l University of Transportation) , 장원진 (Dept. of Electronic Engineering, Korea Nat'l University of Transportation) , 조관열 (Dept. of Electronic Engineering, Korea Nat'l University of Transportation) , 김학원 (Dept. of Electronic Engineering, Korea Nat'l University of Transportation)

Abstract ▼ AI-Helper

Six-phase motors can be used in industrial applications, such as an electric vehicle, due to their high reliability and low current magnitude per phase. An asymmetrical PMSM with two sets of three-phase windings is a commonly used structure for six-phase motors, with each winding set demonstrating a phase difference of 30°. Although the asymmetrical PMSM presents low torque ripples, its dynamic torque response deteriorates due to coupled components in the two three-phase windings. The decoupled VSD control is applied to eliminate the coupling effect. Load ratio control of two inverters for the six-phase PMSM is proposed in this study. DQ currents are controlled on the basis of two synchronous reference frames, and the six-phase drive system can be changed to a three-phase drive system when one inverter presents fault conditions. The operation and effectiveness of the proposed algorithm is verified through simulation and experiments. The six-phase drive system is transferred to a three-phase drive system by changing the current reference of the second DQ reference frame. Moreover, control of both torque and speed exhibits satisfactory performance before and after the mode change.

주제어

표/그림 (12)

그림 Fig. 1. Asymmetrical six-phase motor winding.
그림 Fig. 2. Decoupled VSD synchronous frame.
표 TABLE I COMPARISON OF CONTROL METHODS
그림 Fig. 3. DQ axis Current when each 3-phase differ in amplitude.
그림 Fig. 4. Control system block diagram.
그림 Fig. 5. Speed, DQ current and phase current at normal condition.
그림 Fig. 6. Speed, DQ current and phase current at xyz inverter fault condition.
표 TABLE Ⅱ PARAMETER OF PMSM
그림 Fig. 7. Experiment setting.
그림 Fig. 8. DQ1 current (upper), DQ2 current (down), position, speed at 300 rpm acceleration
그림 Fig. 9. D2-Q1 current, CLR at normal condition.
그림 Fig. 10. D2-Q1 current, CLR at xyz inverter fault condition.

참고문헌 (7)

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상세보기
J. Karttunen, S. Kallio, P. Peltoniemi, P. Silventoinen, and O. Pyrhonen, "Dual three-phase permanent magnet synchronous machine supplied by two independent voltage source inverters," International Symposium on Power Electronics, Electrical Drives, Automation and Motion, Sorrento, pp. 741-747, 2012.
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상세보기
S. Kallio, M. Andriollo, A. Tortella, and J. Karttunen, "Decoupled d-q model of double star interior permanent magnet synchronous machines," IEEE Transactions on Industrial Electronics, Vol. 60, No. 6, pp. 2486-2494, 2013.

상세보기
M. Andriollo, G. Bettanini, G. Martinelli, A. Morini, and A. Tortella, "Analysis of double star permanent magnet synchronous generators by a general decoupled d-q model," IEEE International Electric Machines & Drives Conference, Antalya, pp. 7-12, 2007.
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