DocumentCode :
726580
Title :
A simplified control architecture for three-phase inverters in modular UPS application with shunt active power filter embedded
Author :
Chi Zhang ; Guerrero, Josep M. ; Vasquez, Juan C.
Author_Institution :
Dept. of Energy Technol., Aalborg Univ., Aalborg, Denmark
fYear :
2015
fDate :
1-5 June 2015
Firstpage :
413
Lastpage :
420
Abstract :
In this paper, a simplified control architecture, including individual layer control and recover layer control, is proposed for a modular online uninterruptible power supply (UPS) system is presented. The parallel control algorithm of for the DC/AC modules are mainly concentrates on the active power sharing performance due to the existence of the shunt active power filter (APF). APF will deal with the reactive power brought by the nonlinear load to guarantee that all DC/AC modules are faced with a resistive type load. On the other hand, since there is no regulation on the UPS output voltage frequency or phase angle, the recovery layer control is only concerned with the amplitude of the UPS output voltage, which means that the working load of the communication network is reduced by half. Consequently, the reliability of the system is improved. Experimental results are presented in this paper in order to validate the proposed system architecture and control.
Keywords :
DC-AC power convertors; active filters; embedded systems; invertors; parallel algorithms; power filters; reactive power; reliability; uninterruptible power supplies; APF; DC-AC modules; UPS output voltage frequency; UPS system; active power sharing performance; communication network; modular online uninterruptible power supply; nonlinear load; parallel control algorithm; phase angle; reactive power; recovery layer control; resistive type load; shunt active power filter; simplified control architecture; three-phase inverters; Active filters; Delays; Harmonic analysis; Power harmonic filters; Resistors; Uninterruptible power systems; Voltage control; Modular UPS system; Simplified control architecure; shunt active power filter;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics and ECCE Asia (ICPE-ECCE Asia), 2015 9th International Conference on
Conference_Location :
Seoul
Type :
conf
DOI :
10.1109/ICPE.2015.7167819
Filename :
7167819
Link To Document :
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