Interoperability　and　misalignment　tolerance　issues　are　two　urgent　problems　to　be　solved　in　electric　vehicles　wireless　charging　systems.　To　address　these　issues,　a　wireless　power　transfer　(WPT)　system　based　on　decoupled　mutually　spliced　double-D　(DD)　receiving　coils　is　proposed　in　this　article,　which　can　achieve　certain　interoperability　and　antimisalignment　performance.　These　two　receiving　coils　are　connected　in　series　via　the　rectifiers　on　the　dc　side,　resulting　in　the　total　equivalent　mutual　inductance　equal　to　the　sum　of　the　absolute　values　of　the　mutual　inductances　between　the　transmitting　coil　and　the　two　receiving　coils.　Compared　with　existing　works,　the　proposed　WPT　system　can　achieve　interoperability　and　misalignment　tolerance　with　different　transmitting　coils:　the　square　coil,　the　DD　coil　along　the　X-　or　Y-directions,　and　the　quadrupole　coil.　A　mathematical　model　and　an　experimental　prototype　are　developed　to　verify　the　effectiveness　of　the　proposed　scheme,　and　the　highest　efficiency　of　the　experimental　prototype　is　92.49%.　©　1986-2012　IEEE.