Research of elevator energy feedback system based on converters using SVPWM

Author

Liu, Yi-qiu ; Wang, Xiao-Hong ; Tian, Lian-fang

Author_Institution

Coll. of Autom. Eng., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

fYear

2011

fDate

16-18 Dec. 2011

Firstpage

998

Lastpage

1002

Abstract

PWM rectifiers and inverters can be used in elevator drivers to achieve bidirectional energy flow and thus to save energy. A double-PWM converter is used to develop an elevator energy feedback system. This paper elaborates the mathematical model of the three-phase-voltage-source (VSR) PWM rectifier, the structure of dual-closed-loop control system, the control strategy of the space vector modulation and its realization in the elevator energy feedback system. It also demonstrates the simulation model of the system based on Matlab/Simulink. Finally, parameters in the running experiments are presented showing that the system can stabilize the DC bus voltage while keeping high power-factor either in the rectifier mode or in the inverter mode.

Keywords

PWM invertors; PWM power convertors; PWM rectifiers; closed loop systems; energy conservation; lifts; load flow; power factor; voltage control; voltage regulators; DC bus voltage stability; Matlab; PWM converter; PWM inverter; SVPWM; Simulink; bidirectional energy flow; closed loop control system; elevator energy feedback system; energy saving; mathematical model; power factor; space vector modulation; voltage source PWM rectifier; Control systems; Elevators; Mathematical model; Pulse width modulation; Rectifiers; Vectors; Voltage control; Elevator energy feedback; PWM rectifier; space vector modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Transportation, Mechanical, and Electrical Engineering (TMEE), 2011 International Conference on

Conference_Location

Changchun

Print_ISBN

978-1-4577-1700-0

Type

conf

DOI

10.1109/TMEE.2011.6199372

Filename

6199372