Treffer: Small-signal averaged model and simple control of a high-power-factor three- phase/switch/level fixed-frequency PWM rectifier for high-power telecommunications
Energy Conversion and Power Electronics 1100 Rue Notre-Dame West, Montreal, Quebec, H3C 1K3, Canada
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Telecommunications and information theory
Weitere Informationen
This paper presents a new small-signal model of a three-phase three-switch three-level boost-type rectifier operating with a fixed switching frequency. The proposed model is obtained by linearizing the (d,q)-averaged representation of the converter in the neighborhood of a desired unity-power-factor operating point. The linearized model is expressed both in the time domain, using the state representation, and the frequency domain by computing the corresponding transfer functions. These latter are then used into the design of linear-control-based regulators in order to ensure the convergence and stability of the system around the desired set point. The control system is implemented numerically using Matlab/Simulink, and simulation experiments are carried out in order to test and verily its tracking and regulation performance, as well as its robustness towards load or mains source disturbance.