The installation of the elevator ARD(Automatic Rescue Device) system has been forced into law in
these days in order to safely rescue passengers during power failure. The configuration of the ARD system
consists of energy storage device, power converter and control systems. The EDLC(Electric Double Layer
Capacitor) are used as energy storage device for rapid charge/discharge purposes. The power conditioning
system (PCS) consists of bi-directional converter, 3-phase converter and control system. The dead-beat
control system is adopted for most systems however it requires complex mathematical calculations, the high
performance microprocessors are mandatory and thus it can be a cause of high manufacturing cost. In this
paper the new control method for average current mode control is presented for simple structure. The
control algorithm is applied to the single phase system and then expands to three phase system to meet the
sysem requirements. The mathematical modeling using average modeling method is presented and analysed
by PSIM computer simulation to verifie the validity of the proposed control methods.