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Study and analysis of voltage source converter control stability for HVDC system using different control techniques

Authors :
Dalia Rabie
Tomonobu Senjyu
Salem Alkhalaf
Yahia S. Mohamed
E.G. Shehata
Source :
Ain Shams Engineering Journal, Vol 12, Iss 3, Pp 2763-2779 (2021)
Publication Year :
2021
Publisher :
Elsevier, 2021.

Abstract

A Stable and highly reliable DC link voltage represents an important factor for efficient power transfer in high voltage direct current (HVDC) networks. In this framework, this paper investigates the control and stability analysis of voltage source converter (VSC) for DC link voltage regulation. To separately achieve the independent active and reactive power control, the system voltages and currents are represented in the synchronous reference frame. In order to optimally design the parameters of proportional-integral (PI) controller, the inner and outer loops’ transfer functions are thoroughly derived/developed. In addition,/moreover, in order to attain satisfactory/certain system performance, modulus optimum, symmetrical optimum pole placement control approaches are studied and implemented for the purpose of tuning the voltage/current controller gain parameters. In particular for the symmetrical optimum control method, the gain parameters of the DC-bus voltage are determined under different values of network impedance. Furthermore, the impact/influence of changing gain parameters on the DC-link voltage and poles/zeros movement are investigated. MATLAB/Simulink model is built and simulation studies are carried out to verify the introduced concepts.

Details

Language :
English
ISSN :
20904479
Volume :
12
Issue :
3
Database :
Directory of Open Access Journals
Journal :
Ain Shams Engineering Journal
Publication Type :
Academic Journal
Accession number :
edsdoj.1c1c1efc4ae46dcb63e944b91459af5
Document Type :
article
Full Text :
https://doi.org/10.1016/j.asej.2020.12.013