Magnetic resonance system, power recovery device and method for magnetic resonance system

The invention relates to a magnetic resonance system and a power recovery device and method for the magnetic resonance system. The system comprises a body coil, a direct current load and a power recovery device. The power recovery apparatus includes: at least one impedance matching circuit configured to receive a radio frequency signal reflected by a body coil; the at least one rectifying circuit is electrically connected with a corresponding impedance matching circuit in the at least one impedance matching circuit and is configured to rectify the radio frequency signal; the energy storage device is electrically connected with the at least one rectifying circuit, is configured to store the electric energy rectified by the at least one rectifying circuit and is used for supplying power to a direct-current load; and the first monitoring module is electrically connected with the energy storage device and is configured to monitor the charging state of the energy storage device. And each impedance matching circuit