The invention discloses a wide-range power adjustable
wireless electric energy transmission system and a control method thereof. The
system comprises a DC power supply, a high-frequency inversion unit, a fundamental wave energy path, a
harmonic wave energy path, a rectification and filtering unit, a primary side
control unit and a
secondary side control unit. The load needs different output power of the
system, the
power transmission characteristic of the fundamental wave energy path is different from that of the
harmonic wave energy path, and the switching
modes of a fundamental wave bidirectional switch S1 in the fundamental wave energy path and a
harmonic wave bidirectional switch S2 in the harmonic wave energy channel are controlled; and thus, the
system works in a mode that the fundamental wave energy path supplies power independently, a mode that the harmonic wave energy path supplies power independently, and a mode that the fundamental wave energy path and the harmonic wave energy path supply power in parallel, and the output power can be adjusted in a wide range. The system and control method thereof have the advantages that the fundamental wave energy path and the harmonic wave energy path can work in a coordinated manner, the
utilization rate of power energy is improved, and the output power can be adjusted in the wide range on the premise that no complex
control circuit is arranged additionally.