A simple feedback for parallel operation of current controlled inverters involved in UPS

Author

Claire, J. C Le ; Lembrouck, G.

Author_Institution

Inst. de Recherche en Electron. et Electrotechnique, Saint-Nazaire

fYear

2007

fDate

2-5 Sept. 2007

Firstpage

1

Lastpage

10

Abstract

Thanks to the use of a novel modulation strategy, the inverters of a voltage source converter are under accurate current controls. Thanks to this strategy, the inverter gains are known. Then, the system open loop transfer function is deduced and a simple PID controller permits to target a good behaviour and a stable operation of the multi-inverter structure which could be involved in an UPS.

Keywords

electric current control; invertors; three-term control; uninterruptible power supplies; PID controller; UPS; current controlled inverters; modulation strategy; open loop transfer function; parallel operation; simple feedback; uninterruptible power supplies; voltage source converter; Control systems; Current control; Feedback; Master-slave; Pulse width modulation; Pulse width modulation inverters; Rectifiers; Transfer functions; Uninterruptible power systems; Voltage control; Current Source Inverter; Modulation strategy; Parallel operation; UPS; Voltage Source Converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications, 2007 European Conference on

Conference_Location

Aalborg

Print_ISBN

978-92-75815-10-8

Electronic_ISBN

978-92-75815-10-8

Type

conf

DOI

10.1109/EPE.2007.4417203

Filename

4417203