Title :
Challenges for capacitor voltage balancing in a cascaded h-bridge StatCom utilising finite control set Model Predictive Control
Author :
Marks, N.D. ; Summers, T.J. ; Betz, R.E.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Univ. of Newcastle, Newcastle, NSW, Australia
fDate :
Sept. 29 2013-Oct. 3 2013
Abstract :
Model Predictive Control (MPC) can provide performance benefits over established schemes in power electronic converter control. However, the implementation of the scheme changes the characteristics of the voltage and current control systems relative to established control methods and different approaches for control are required. This paper considers the implication of the speed of the stack voltage balancing scheme on the regulation of the capacitor voltages in a 5 level cascaded h-bridge StatCom. A dead-beat scheme with phase shifted carrier pulse width modulation (PSC-PWM) and a finite control set model predictive control (FCS-MPC) scheme are compared with simulation results.
Keywords :
PWM power convertors; electric current control; power capacitors; predictive control; static VAr compensators; voltage control; 5-level cascaded H-bridge STATCOM; FCS-MPC scheme; MPC; PSC-PWM; capacitor voltage balancing regulation; current control systems; dead-beat scheme; finite control set model predictive control; phase shifted carrier pulse width modulation; power electronic converter control; stack voltage balancing scheme; voltage control systems; Educational institutions; Predictive models; Simulation; Switches;
Conference_Titel :
Power Engineering Conference (AUPEC), 2013 Australasian Universities
Conference_Location :
Hobart, TAS
DOI :
10.1109/AUPEC.2013.6725409
