As an improved solution to the I‐type power supply rail, as explained in the previous chapter, a dq I‐type power supply rail is introduced in this chapter. The single‐phase I‐type power supply rail for on‐line electric vehicles (OLEVs) has a very narrow power supply rail with 10 cm width and exposes pedestrians to a very low electromagnetic field due to its alternatively arranged magnetic poles along the driving direction of electric vehicles; however, it has a major drawback: sinusoidal variation of the induced pick‐up voltage depending on pick‐up positions on the power supply rail along the driving direction. To overcome this disadvantage, a dq‐power supply rail fed by two high‐frequency AC currents of the d‐phase and q‐phase is introduced in this chapter. The d‐phase and q‐phase magnetic poles are alternatively arranged in a line; hence, the induced voltage of a pick‐up becomes spatially uniform. The power invariant characteristic of the proposed scheme has been verified by analysis, simulations, and experiments. A practical winding method is suggested as well.

    This chapter is based on the paper by C. Park, S. Lee, S.‐Y. Jeong, G.H. Cho, and C.T. Rim, “Uniform power I‐type inductive power transfer system with DQ‐power supply rails for on‐line electric vehicles,” IEEE Trans. on Power Electronics, vol. 30, no. 11, pp. 6446–6455, November 2015. Readers should gain much insight from the dq‐power supply rail.


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    Title :

    Narrow‐Width Dual‐Phase Power Rail (I‐type)


    Contributors:
    Rim, Chun T. (author) / Mi, Chris (author)


    Publication date :

    2017-07-11


    Size :

    16 pages




    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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