Resonant–Repetitive Combined Control for Stand-Alone Power Supply Units

Alessandro Lidozzi, Chao Ji, Luca Solero, Pericle Zanchetta, Fabio Crescimbini
2015 IEEE transactions on industry applications  
Pericle (2015) Resonant-Repetitive combined control for stand-alone power supply unit. IEEE Transactions on Industry Applications, 51 (6). pp. 4653-4663. ISSN 0093-9994 Access from the University of Nottingham repository: http://eprints.nottingham.ac.uk/33129/1/Resonant-Repetitive%20Combined%20Control %20for%20Stand-Alone%20Power%20Supply%20Units.pdf Abstract-This paper investigates a combined Resonant-Repetitive (RR) control structure for a three phase four leg DC/AC converter power supply.
more » ... RR control configuration is composed by a resonant controller tuned at the system fundamental frequency working in conjunction with a plug-in type repetitive controller. The resonant part of the control scheme is used to assure prompt tracking of the inverter output voltage as well to achieve as fast as possible system response to load variations; to this purpose, it is tuned at the fundamental frequency. At the same time, the resonant controller is able to stabilize the system without the necessity of any further additional controller; the repetitive part of the scheme is implemented for the fine regulation at the system harmonic frequencies. The proposed control configuration is used to regulate the power supply output voltage providing very good tracking of the output voltage reference even in the presence of a non-linear load. Experimental validation from a 40 kVA converter prototype is presented to validate the operation of the proposed converter and control.
doi:10.1109/tia.2015.2458960 fatcat:atotm7webnc4xa25r2puue7vuq