Title :
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
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;
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
DOI :
10.1109/EPE.2007.4417203
