전기자동차 충전기용 보급형 전력량계에 적용 가능한고조파 왜곡 추정 알고리즘
Harmonic distortion estimation applicable to a low-end electricity meter for an electric vehicle charger
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초록
본 논문에서는 전기자동차 충전시 발생하는 고조파 성분을 매우 높은 차수까지 추정하여 전력량을 계산하되 낮은 연산능력을 가지는 저가의 보급형 전력량계에서도 구동 가능하도록 Goertzel 기반 알고리즘을 제안하였다. 제안된 알고리즘을 사용하여 전력량계량시 큰 차수의 고조파까지 충분히 고려할 수 있음을 간단한 예제 신호에 대해 시뮬레이션을 통해 검증하였다.
Abstract
In this paper, a Goertzel-based algorithm was proposed to calculate the amount of power by estimating theharmonic components generated during charging of the electric vehicle up to a very high order, allowing it to beapplied to a low-cos electricity meter with low computing power. Using the proposed algorithm, it is verifiedthrough simulation for a simple example signal that even large-order harmonics can be sufficiently consideredwhen wattage is measured.
참고문헌 (6)
- Jae-Jo Lee, "Ttrends in international standardization of electric vehicle charging infrastructure and domestic regulations", Korean Institute of Power Electronics Magazine, 27(2), pp.50~55 (2022)
- Hyeong-Jin Kim, "Single-phase", three-phase combined non-electrolytic capacitor High-efficiency, high-power density electric vehicle charger, 2021, pp.26(5), 64~69
- "Electric Vehicle Charger Technical Standards", Notification of the Ministry of Trade, Industry and Energy, ~ (2020)
- "Horlick ompany"[URL]
- Ji-Hun Kim, "Analysis of Harmonic Effects due to Charging of Electric vehicles", Proceedings of the KIEE Conference, pp.79~80 (2011)
- Gerald Goertzel, "An Algorithm for the Evaluation of Finite Trigonometric Series", The American Mathematical Monthly, 65(1), pp.34~35 (1958), JSTOR[DOI]