abstract

• This paper presents the modelling and control of the three-phase grid-connected modular multilevel converter. Based on the obtained model, a combined controller is proposed with the aim to regulate and balance the total energy on each converter phase, minimize circulating currents, and inject a current in phase with the grid voltage. For this, the proposed controller builds a reference for each arm of the modular multilevel converter, which then can be used in a proper modulation scheme to obtain the switching sequence for each submodule of the converter. Numerical results are presented to validate the proposed control scheme. © 2015 IEEE.

authors

• Catzin-Contreras G.A.
• Escobar G.
• Lopez-Sanchez M.J.
• Valdéz Fernández Andrés Alejandro

publication date

• 2016-01-01

published in

• 2015 IEEE International Autumn Meeting on Power, Electronics and Computing, ROPEC 2015  Proceedings

keywords

• high voltage direct current; Modular multilevel converter; phase-shift carrier-based pulse-width modulation Controllers; DC power transmission; HVDC power transmission; Modulation; Phase shift; Phase shifters; Pulse width modulation; Voltage control; Circulating current; High voltage direct current; Model-based controller; Modelling and controls; Modular multilevel converters; Modulation schemes; Numerical results; Switching sequence; Power converters

Digital Object Identifier (DOI)

• 10.1109/ROPEC.2015.7395153

start page

end page