Discrete self-charging elevator energy feedback device

The invention discloses a discrete self-charging elevator energy feedback device, wherein a diode triphase uncontrollable rectification module (1) is respectively connected with a triphase electric network (100) and a self-charging circuit (2) which is connected with a voltage stabilizing filter capacitor (4), the voltage stabilizing filter capacitor (4) is respectively connected with an energy consuming brake unit (3), an inverter module (5) and an isolating diode (6) that is connected with an energy feedback unit (7) in series, and the energy feedback unit (7) is sequentially connected witha higher harmonic filter (8) and the triphase electric network (100). The discrete self-charging elevator energy feedback device disclosed in the invention can realize effective use of the reclaimed energy of the elevator, enhance the safety of the elevator in operation and prolong the service life of the elevator, is low in manufacture cost and suitable for large-scale promotion and application and has momentous production practice significance.