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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2018.10
- 수록면
- 202 - 206 (5page)
이용수
초록· 키워드
오류제보하기
It is challenging to identify the time constants of the second order system via the sole step response, especially in the presence of the measurement noise. It is revealed that the responses behaves quite close to each other provided that the sum of time constants is fixed. To this end, this paper aims to develop a hybrid identification method that combines the characteristics in both time and frequency domain. The starting point has been the non-dimensionalization of the open-loop step response. A critical time at which the scaled amplitude equals 0.7 is chosen as the first characteristic parameter. The frequency at which the phase lag equals 90o is chosen as the second characteristic parameter. The time constants can be readily obtained by solving the equations describing the characteristic parameters. Illustrative examples show the superiority of the proposed hybrid method over the conventional time-domain “two-point” method.
목차
Abstract
1. INTRODUCTION
2. BACKGROUND AND DIMENSIONLESS STEP RESPONSE
3. SECOND-ORDER MODEL IDENTIFICATION
4. ILLUSTRATIVE EXAMPLES
5. CONCLUSION
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2018-003-003538209