지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2024.8
- 수록면
- 253 - 262 (10page)
- DOI
- 10.6113/TKPE.2024.29.4.253
이용수
초록· 키워드
오류제보하기
The extensive use of inverters and variable frequency drives (VFDs) introduce harmonics because of pulse width modulated signals. These harmonics reduce power quality, increase losses, and affect the safety of the motor drive system making harmonic detection inevitable. The recent surge in induction motor-based electric vehicles (EVs) also forces the need for a harmonic detection method for proper monitoring. However, the conventional methods used for harmonic extraction mostly relate to the Fourier transform, lock-in amplifier, and other modified versions. These methods show a deterioration in the component extraction performance in an environment with disturbances such as frequency drift, DC offset, and high distortion. In addition, these methods need high computational power and large storage memory. To rectify the limitations of the conventional method, this article proposes a novel frequency adaptive fundamental and harmonic detection method for motor drive systems with a digital lock-in amplifier-based frequency-locked loop (DLIA-FLL). This method, with the capability to track fundamental frequency to provide accurate results in an environment with DC offset, frequency drift, and high distortion, can help with efficient monitoring and safe operation of the motor drive system. Mathematical modeling of the proposed method along with experimental evaluation results are presented. ZERA COM3003 is used as a reference instrument for comparative analysis.
목차
Abstract
1. Introduction
2. Modeling of Proposed Method
3. Validation of Proposed DLIA-FLL
4. Conclusion
References
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