Patent ID: 8207631

Claim:
Power control of a transport system, the power control comprising: an electric motor for moving the transport appliance; a power supply appliance of the motor, the power supply including an intermediate circuit and said power supply appliance being fitted between a power source and the electric motor, and a network rectifier fitted between said power source and the intermediate circuit such that the rectifier is configured to supply braking power returning from the electric motor the power source, the network rectifier being single-phase and including only one choke and only one changeover switch; and wherein the network rectifier is fitted to the intermediate circuit via diodes connected to positive and negative intermediate circuit busbars; the power source is formed of a single-phase or multiphase AC electricity system including a neutral wire, said choke is fitted between the phase of the AC electricity system and a center point of said changeover switch, at least two capacitors in series are connected in parallel with said changeover switch, and said neutral wire is connected to a center point of the capacitors.