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논문 기본 정보

자료유형
학술저널
저자정보
Jin-Woo Jung (Dongguk University) Dong Quang Dang (Dongguk University) Nga Thi-Thuy Vu (Dongguk University) Jackson John Justo (Dongguk University) Ton Duc Do (Dongguk University) Han Ho Choi (Dongguk University) Tae Heoung Kim (Gyeongsang National University)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.15 No.3
발행연도
2015.5
수록면
753 - 762 (10page)

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초록· 키워드

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This paper presents a nonlinear sliding mode control (SMC) scheme with a variable damping ratio for interior permanent magnet synchronous motors (IPMSMs). First, a nonlinear sliding surface whose parameters change continuously with time is designed. Actually, the proposed SMC has the ability to reduce the settling time without an overshoot by giving a low damping ratio at the initial time and a high damping ratio as the output reaches the desired setpoint. At the same time, it enables a fast convergence in finite time and eliminates the singularity problem with the upper bound of an uncertain term, which cannot be measured in practice, by using a simple adaptation law. To improve the efficiency of a system in the constant torque region, the control system incorporates the maximum torque per ampere (MTPA) algorithm. The stability of the nonlinear sliding surface is guaranteed by Lyapunov stability theory. Moreover, a simple sliding mode observer is used to estimate the load torque and system uncertainties. The effectiveness of the proposed nonlinear SMC scheme is verified using comparative experimental results of the linear SMC scheme when the speed reference and load torque change under system uncertainties. From these experimental results, the proposed nonlinear SMC method reveals a faster transient response, smaller steady-state speed error, and less sensitivity to system uncertainties than the linear SMC method.

목차

Abstract
I. INTRODUCTION
II. STATE SPACE MODEL OF AN IPMSM WITH SYSTEM UNCERTAINTIES
III. NONLINEAR SLIDING SURFACE DESIGN
IV. NONLINEAR SLIDING MODE SPEED CONTROLLER DESIGN
V. SYSTEM UNCERTAINTIES OBSERVER DESIGN
VI. NUMERICAL EXAMPLE
VII. CONCLUSION
REFERENCES

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UCI(KEPA) : I410-ECN-0101-2016-560-001464295