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Performance comparison of phase shifted PWM and sorting method for modular multilevel converters

M. Rejas ; L. Mathe ; P. Dan Burlacu ; H. Pereira ; A. Sangwongwanich ; Massimo Bongiorno (Institutionen för energi och miljö, Elteknik) ; R. Teodorescu
17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015, Geneva, Switzerland, 8-10 September (2015)
[Konferensbidrag, refereegranskat]

Modular Multilevel Converters (MMC) are the solution of preference in HVDC applications due to modularity, scalability, low losses and low filtering requirement. Carrier-based (PWM) and carrier-less (nearest level control) modulation can be applied. By using advanced sorting methods focusing on keeping the capacitor voltage ripple under some limit, unnecessary switching events are eliminated leading to reduced switching losses. This paper presents a comparison between the steady-state performances in terms of output voltage THD and equivalent switching frequency of the Phase Shifted Carrier PWM and NLC plus sorting methods.

Nyckelord: Counting circuits, Phase shift, Phase shifters, Power electronics, Capacitor voltage ripple, Modular multi-level converters, Output voltages, Performance comparison, Phase-shifted PWM, Reduced switching, Sorting method, Steady state performance, Power converters



Denna post skapades 2016-06-13. Senast ändrad 2016-08-26.
CPL Pubid: 237636

 

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Institutioner (Chalmers)

Institutionen för energi och miljö, Elteknik

Ämnesområden

Annan elektroteknik och elektronik

Chalmers infrastruktur