Because　of　its　reliability　and　flexibility,　wireless　power　transfer　(WPT)　has　become　a　hit　in　recent　years.　In　some　typical　applications　of　WPT,　such　as　electric　vehicles,　the　current　mainstream　charging　power　level　cannot　meet　user＇s　charging　needs.　Thus,　it　is　necessary　to　develop　high-power　wireless　charging　technology.　Modularization　is　considered　as　a　possible　solution　to　realize　high-power　WPT.　The　structure　of　coupled　coils　and　the　modular　design　of　magnetic　couples　are　closely　related　to　the　performance　of　a　modular　WPT　system.　When　the　mainstream　planar　coils　are　applied　to　the　modular　WPT　system,　the　coupling　coefficient　of　the　system　is　not　ideal.　In　order　to　solve　this　problem,　two　modular　WPT　arrangements　with　flat　solenoid　coils　are　proposed　in　this　paper.　The　factors　affecting　the　transferred　power　of　a　modular　WPT　system　are　analyzed.　The　electromagnetic　modeling　and　simulation　of　the　proposed　modular　arrangements　are　carried　out,　and　the　feasibility　of　the　proposed　arrangements　is　verified.　©　2022　IEEE.