Wireless electric energy transmission system and constant-current and constant-voltage control method thereof

The invention provides a wireless electric energy transmission system, which comprises a DSP processor, a wireless electric energy transmission device, and a change-over switch controller, a current acquisition circuit and a voltage acquisition circuit which are connected between the DSP processor and the wireless electric energy transmission device; the wireless power transmission device is arranged on a transmitting module to form a primary side LCC compensation network with change-over switches S1 and S2 and a primary side series compensation network with a change-over switch S3, and a secondary side LCC compensation network is formed on a receiving module; the change-over switch controller is connected with the change-over switches S1, S2 and S3; and the DSP processor issues a constant-current charging control instruction to the change-over switch controller, so that the change-over switch controller switches on the change-over switches S1 and S2 and switches off the change-over switch S3, and a bilateral