Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
권호 표지
DOI QR코드

DOI QR Code

Harmonic distortion estimation applicable to a low-end electricity meter for an electric vehicle charger

전기자동차 충전기용 보급형 전력량계에 적용 가능한 고조파 왜곡 추정 알고리즘

  • Ukhyun, Kim (Department of Electronic Engineering, Gangneung-Wonju National University) ;
  • Kyungeun, Kim (Department of Electronic Engineering, Gangneung-Wonju National University) ;
  • Sangwook, Park (Department of Electronic Engineering, Gangneung-Wonju National University) ;
  • Young Lae, Kim (Department of Electronic Engineering, Gangneung-Wonju National University) ;
  • Jooyoung, Jeon (Department of Electronic Engineering, Gangneung-Wonju National University)
  • Received : 2022.12.17
  • Accepted : 2022.12.22
  • Published : 2022.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, a Goertzel-based algorithm was proposed to calculate the amount of power by estimating the harmonic components generated during charging of the electric vehicle up to a very high order, allowing it to be applied to a low-cos electricity meter with low computing power. Using the proposed algorithm, it is verified through simulation for a simple example signal that even large-order harmonics can be sufficiently considered when wattage is measured.

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 전력량 계량시 큰 차수의 고조파까지 충분히 고려할 수 있음을 간단한 예제 신호에 대해 시뮬레이션을 통해 검증하였다.

Keywords

Acknowledgement

This work was supported by Korea Evaluation Institute of Industrial Technology (KEIT) grant funded by the Korea government (MTIE) (No.20016533)

References

  1. Jae-Jo Lee, "Ttrends in international standardization of electric vehicle charging infrastructure and domestic regulations," KIPE(Korean Institute of Power Electronics) Magazine, vol.27, issue2, pp.50-55, 2022.
  2. Hyeong-Jin Kim, "Single-phase/three-phase combined non-electrolytic capacitor High-efficiency, high-power density electric vehicle charger," KIPE (Korean Institute of Power Electronics) Magazine, vol.26, issue.5, pp.64-69, 2021.
  3. "Electric Vehicle Charger Technical Standards," Notification of the Ministry of Trade, Industry and Energy, no.2020-017, 2020.
  4. Horlick ompany, "Horlick ompany", https://horlick.com/
  5. Ji-Hun Kim, Hyeong-Wook Sim, Seong-Chul Ju, Jae-Won Lee, Chul-Hwan Kim, "Analysis of Harmonic Effects due to Charging of Electric vehicles," Proceedings of the KIEE Conference, pp.79-80, 2011. DOI: 10.1109/IGESC.2017.8283460
  6. Goertzel, G., "An Algorithm for the Evaluation of Finite Trigonometric Series," American Mathematical Monthly, vol.65 no.1, pp.34-35, 1958. DOI: 10.2307/2310304