Recently, planar omnidirectional wireless power transfer has gained extensive attention, especially in consumer electronics benefiting from ease to integration with furniture. In such application, angular misalignment occurs frequently. However, for the existing literature, the modelling and effects of angular misalignment are not investigated completely. Targeting at this, this article conducts modelling of a planar omnidirectional wireless power transfer system with three sets of planar coils. Afterwards, the Ns effect is investigated and simulation is conducted to verify the correctness of the modelling process. Finally, in the experiment, three sets of coils are fabricated and the transfer efficiency are measured under orientation and angular misalignment at 6.78MHz. When charging the mobile phone and electronic watch receivers, the overall efficiency is 69%-78% and 55%-65%, considering the orientation and angular misalignment.
