To have a large lateral tolerance is crucial for commercialization of road‐powered electric vehicles (RPEVs). If you produce a large pick‐up to meet the large tolerance, then EMF will increase and efficiency will decrease. A good design that allows large tolerance as well as low EMF and high efficiency is therefore required. Self‐decoupled dual pick‐up coils for large lateral tolerance and low EMF for pedestrians are explained in this chapter.
Analytical models are developed that are applicable to any self‐decoupled coils, regardless of the coil types, such as single/dual pick‐ups and core/coreless coils. An optimum decoupling distance between adjacent pick‐up coils is determined and found to be independent of the existence of a core plate. Maximum load power over a large lateral tolerance is obtained for the optimum decoupling distance. The proposed models are so general that they can be applied to any self‐decoupled pick‐up coils for stationary charging and dynamic charging systems. Moreover, the self‐decoupled coils are compatible with any compensation method such as serial, parallel, and serial–parallel. A prototype system of 1.5 kW and Q = 60 for road‐powered electrical vehicles was implemented and showed fairly good agreement with the theoretical models and simulations. The measured lateral tolerance was 90 cm, which is about 1.5 times that of the coil width.
This chapter is based on the paper by S.Y. Choi, S.Y. Jeong, E.S. Lee, B.W. Gu, S.W. Lee, and C.T. Rim, “Generalized models on self‐decoupled dual pick‐up coils for a large lateral tolerance,” IEEE Trans. on Power Electronics, vol. 30, no. 11, pp. 6434–6445, November 2015.
Large Tolerance Design
2017-07-11
19 pages
Article/Chapter (Book)
Electronic Resource
English
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