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
- 저널정보
- 대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.11 No.1
- 발행연도
- 2016.1
- 수록면
- 157 - 166 (10page)
이용수
초록· 키워드
오류제보하기
In this paper, a new sag and peak voltage detector is proposed for a single-phase inverter using delta square operation. The conventional sag detector is from a single-phase digital phaselocked loop (DPLL) that is based on d-q transformations using an all-pass filter (APF). The d-q transformation is typically used in the three-phase coordinate system. The APF generates a virtual qaxis voltage component with a 90° phase delay, but this virtual phase cannot reflect a sudden change in the grid voltage at the instant the voltage sag occurs. As a result, the peak value is drastically distorted, and it settles down slowly. A modified APF generates the virtual q-axis voltage component from the difference between the current and the previous values of the d-axis voltage component in the stationary reference frame. However, the modified APF cannot detect the voltage sag and peak value when the sag occurs around the zero crossing points such as 0° and 180°, because the difference voltage is not sufficient to detect the voltage sag. The proposed algorithm detects the sag voltage through all regions including the zero crossing voltage. Moreover, the exact voltage drop can be acquired by calculating the q-axis component that is proportional to the d-axis component. To verify the feasibility of the proposed system, the conventional and proposed methods are compared using simulations and experimental results.
목차
Abstract
1. Introduction
2. System Configuration
3. Simulation Results
4. Experimental Results
5. Conclusion
References
참고문헌 (11)
참고문헌 신청
R. Naidoo, P. Pilay, “A New Method of Voltage Sag and Swell Detection,” IEEE Trans. on Power Delivery, Vol. 22, No. 2, pp. 10561063, Apr. 2007.
N. Woodley, L. Morgan, A. Sundaram, “Experience with an inverter-based dynamic voltage restorer,” IEEE Trans. on Power Delivery, Vol. 14, No. 3, pp. 11811186, July. 1999.
W. Lee, D. Lee, T. Lee, “New Control Scheme for a Unified Power Quality Compensator-Q with Minimum Active Power Injection,” IEEE Trans. on Power Delivery, Vol. 25, No. 2, pp. 10681076, Apr. 2010.
W. Lee, W. Lee, T. Lee, “Integrated inverter system for compensation of Power Quality events,” Power Electronics Specialists Conference, pp. 37543759, June. 2008.
N. Tuaboylu, E. Collins, P. Chaney, “Voltage Disturbance Evaluation Using the Missing Voltage Technique”, Harmonics and Quality of Power, Vol. 1, pp. 577582, 1998.
N. Woodley, L. Morgan, A. Sundaram, “Experience with an inverter-based dynamic voltage restorer,” IEEE Trans. on Power Delivery, Vol. 14, No. 3, pp. 11811186, July. 1999.
W. Lee, D. Lee, T. Lee, “New Control Scheme for a Unified Power Quality Compensator-Q with Minimum Active Power Injection,” IEEE Trans. on Power Delivery, Vol. 25, No. 2, pp. 10681076, Apr. 2010.
W. Lee, W. Lee, T. Lee, “Integrated inverter system for compensation of Power Quality events,” Power Electronics Specialists Conference, pp. 37543759, June. 2008.
N. Tuaboylu, E. Collins, P. Chaney, “Voltage Disturbance Evaluation Using the Missing Voltage Technique”, Harmonics and Quality of Power, Vol. 1, pp. 577582, 1998.
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