전기자동차 모델링 및 확장 칼만필터를 이용한 배터리 SOC 추정에 관한 연구
- Alternative Title
- A Study on EV Modeling and Battery SOC Estimation Using Extended Kalman Filter
- Abstract
- In order to improve battery state of charge (SOC) estimation methods, this research developed an electric vehicle (EV) model using Matlab/Simulink software and compared the modelled performance with test data of an EV developed for actual use. To develop a 28 kW EV using an induction motor, a gearbox with a 1 : 5.5 ratio was used in the powertrain. We utilized an 11.1 kWh battery pack, which included a battery management system (BMS), using 20x2 lithium-polymer battery cells. An on-board charger (OBC) with 220V (AC) input and 22A output was used to charge the battery pack. The technical specifications were obtained through various experiments.
Accurate estimation of battery SOC is one of the key problems in a BMS. This paper proposes a battery SOC estimation method using an extended Kalman filter for lithium-polymer batteries. An electric circuit model (ECM) was set up to represent different degrees of parameter shift due to chemistry, charging, discharging, temperature, and age. Numerical simulation and hardware test results indicate that the proposed algorithm is very useful with respect to improving the accuracy of battery SOC estimation.
- Author(s)
- 양승용
- Issued Date
- 2017
- Awarded Date
- 2017. 8
- Type
- Dissertation
- URI
- http://dcoll.jejunu.ac.kr/jsp/common/DcLoOrgPer.jsp?sItemId=000000008194
- Alternative Author(s)
- Yang, Seung Yong
- Affiliation
- 제주대학교 대학원
- Department
- 대학원 에너지응용시스템학부 전기공학전공
- Advisor
- 김호찬
- Table Of Contents
- 그 림 목 차 ⅱ
표 목 차 ⅲ
SUMMARY ⅳ
Ⅰ. 서론 1
Ⅱ. 28 kW급 전기자동차 구성 3
2.1 28 kW급 전기자동차 개요 3
2.2 인덕션 모터 4
2.3 리튬 폴리머 배터리 6
2.4 BMS 7
Ⅲ. 전기자동차 모델링 및 성능 분석 10
3.1 Matlab/Simulink를 사용한 전기자동차 모델링 10
3.2 시뮬레이션 결과 및 전기자동차 운행 성능 분석 16
Ⅳ. 확장 칼만 필터를 이용한 배터리 SOC 추정 24
4.1 배터리의 전기적 등가회로 모델 24
4.2 확장 칼만 필터를 이용한 배터리 SOC 추정 28
V. 결론 34
참 고 문 헌 35
- Degree
- Master
- Publisher
- 제주대학교 일반대학원
- Citation
- 양승용. (2017). 전기자동차 모델링 및 확장 칼만필터를 이용한 배터리 SOC 추정에 관한 연구
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Appears in Collections:
- Faculty of Applied Energy System > Electrical Engineering
- 공개 및 라이선스
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