Model predictive control of an ACtoAC converter with input and output LC filter
Conference Paper
The use of finite state model predictive control (FSMPC) is investigated for an ACtoAC converter with LC output filter for voltage regulation applications. The equivalent input inductance of the source is included in the model of the converter which results in a second equivalent LC filter at the input. This introduces oscillations in the system. FSMPC is used to add control to the input without the need for complex control loops. Furthermore, evaluating and switching the system at equidistant instants in time, causes the average switching frequency to decrease for certain voltage references. A new prediction method is proposed to maintain the average switching frequency, which improves the THD of the output voltage. Simulation results are provided to verify the performance of the proposed prediction method. © 2011 IEEE.
Related items
Showing items related by title, author, creator and subject.

Finiteset model predictive control with heuristic voltage vector preselection for higher prediction horizons
Stolze P.; Landsmann P.; Kennel R.; Mouton T. (2011)

Finiteset model predictive control of a flying capacitor converter with heuristic voltage vector preselection
Stolze P.; Landsmann P.; Kennel R.; Mouton T. (2011)This paper presents a finiteset model predictive strategy for current control of a resistiveinductiveactive load with a threephase threelevel flying capacitor converter. A heuristic method is used to reduce the ...

Model predictive control of ACtoAC converter voltage regulator
Chewele, Youngie Klyv (Stellenbosch : Stellenbosch University, 201404)ENGLISH ABSTRACT: The development of fast and efficient processors, programmable devices and high power semiconductors has led to the increased use of semiconductors directly in the power supply path in order to achieve ...

Supervisory control and sliding mode control of a medium voltage direct ACAC electronic voltage regulator
Abrie, Dewald Johan (Stellenbosch : Stellenbosch University, 201303)ENGLISH ABSTRACT: As control problems become more and more complex, techniques are required that surpass the capabilities of simple controllers that are linearized about certain parametric set points. Controllers that can ...

Finiteset model predictive control with heuristic voltage vector preselection for higher prediction horizons
Stolze P; Landsmann P; Kennel RM; Mouton HduT (2011)

Conductor Corona Noise Prediction on High Voltage AC Lines
Urban RG; Reader HC; Holtzhausen JP; Hubbard R; Britten AC; Smith DC (2005)

Finiteset model predictive control of a flying capacitor converter with hysteresis voltage balancing,
Stolze P; Landsmann P; Kennel RM; Mouton HduT (2011)

Sliding mode control for a threephase shunt active power filter utilizing a fourleg voltage source inverter
Gous, M. G. F.; Beukes, H. J. (2004)A sliding mode control strategy for a threephase shunt active power filter utilizing a fourleg voltage source inverter is presented. An accurate dynamic system model is developed in the dq0 space, which takes the effect ...

Electricity theft detection on a low voltage reticulation environment
Doorduin, Riaan (Stellenbosch : University of Stellenbosch, 200412)ENGLISH ABSTRACT: Electricity theft in South Africa has become a major problem. This led to several developments from both industries and research institutes to counter these actions. Since equipment is already installed ...

A singleclock asynchronous input COSL setreset flipflop and SFQ to voltage state interface
Fourie C.J.; Perold W.J. (2005)Although published research in COSL has stagnated, it remains a useful logic family for interfacing the much faster RSFQ family to hotlogic circuits. COSL has always been plagued by the absence of latches, and previous ...

Complementary output switching logic  A new superconducting voltagestate logic family
Perold W.J.; Jeffery M.; Wang Z.; Van Duzer T. (1996)A new superconducting logic family, complementary output switching logic (COSL), is proposed. The family consists of AND, NAND, OR, NOR, and XOR gates. The performance of the gates is predicted with a procedure that evaluates ...

Predictive torque control of an induction machine fed by a neutral point clamped inverter
Stolze P.; Bauer F.; Landsmann P.; Kennel R.; Mouton T. (2011)

Predictive torque control of an induction machine fed by a flying capacitor converter
Stolze P.; Du Toit D.; Tomlinson M.; Kennel R.; Mouton T. (2011)

Model predictive control of a flying capacitor converter with output LC filter for UPS applications
Stolze P.; Du Toit D.; Tomlinson M.; Kennel R.; Mouton T. (2011)

A prospective study on the predictive value of normal sperm morphology as evaluated by computer (IVOS)
Kruger T.F.; Lacquet F.A.; Sarmiento C.A.S.; Menkveld R.; Ozgur K.; Lombard C.J.; Franken D.R. (1996)Objective: To evaluate the IVOS (Hamilton Thorne Research Version 2.1 Dimension Program, Beverly, MA) system's ability to predict fertilization in vitro in a prospective study. Design: A prospective clinical study. Setting: ...

Depressive symptoms at baseline predict fewer negative symptoms at followup in patients with firstepisode schizophrenia
Oosthuizen P.; Emsley R.A.; Roberts M.C.; Turner J.; Keyter L.; Keyter N.; Torreman M. (2002)There is uncertainty regarding the prognostic value of depressive symptoms in schizophrenia, having previously been associated with both favourable and poor outcome. This study investigated the relationship between baseline ...

Prediction of functional reserves after lung resection: Comparison between quantitative computed tomography, scintigraphy, and anatomy
Bolliger C.T.; Guckel C.; Engel H.; Stohr S.; Wyser C.P.; Schoetzau A.; Habicht J.; Soler M.; Tamm M.; Perruchoud A.P. (2002)Background and Objectives: We prospectively compared five techniques to estimate predicted postoperative function (ppo F) after lung resection: recently proposed quantitative CT scans (CT), perfusion scans (Q), and three ...

Value of different staging systems for predicting neurological outcome in childhood tuberculous meningitis
Van Toorn R.; Springer P.; Laubscher J.A.; Schoeman J.F. (2012)BACKGROUND: The stage of tuberculous meningitis (TBM) at presentation is strongly associated with prognosis. OBJECTIVE: To compare different staging systems for TBM in predicting outcome. METHODS: The associations of ...

The value of ultrasound examination of the lungs in predicting bronchopulmonary dysplasia
Pieper C.H.; Smith J.; Brand E.J. (2004)Background: Bronchopulmonary dysplasia (BPD) is one of the most serious complications of neonatal mechanical ventilation. Early diagnosis may influence treatment options such as early steroid administration. Objective: To ...

Predictive control of a seriesinput, paralleloutput, backtoback, flyingcapacitor multilevel converter
Du Toit, Daniel Josias (Stellenbosch : Stellenbosch University, 201112)ENGLISH ABSTRACT: This thesis investigates the viability of constructing a solidstate transformer (SST) with a seriesinput, paralleloutput connection of fullbridge, threelevel yingcapacitor converters. It focusses ...