High-voltage electric field fresh keeping equipment with adjustable frequency and fresh keeping method of high-voltage electric field fresh keeping equipment

The invention provides high-voltage electric field fresh keeping equipment with adjustable frequency and a fresh keeping method based on an induction electric field technique. The fresh keeping equipment and the fresh keeping method are combined with other refrigeration equipment to be mainly applied to fresh keeping of various fresh products such as vegetables, fruits, meat, seafoods and transplanted organs, under the refrigeration or frozen environment. The electric field fresh keeping equipment comprises an electric leakage switch, an electric field control box and a discharge plate, wherein the electric leakage switch is sequentially connected with the electric field control box and the discharge plate, and the electric field control box mainly comprises a rectifier wave filtering module, an auxiliary power supply module, a control module, an inversion module, a voltage boosting module and a matching network. According to the fresh keeping method, the induction electric field technique is applied to fresh