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

Ain Shams Engineering Journal

Tomonobu Senjyu¹  Yahia S. Mohamed²  Dalia Rabie³  E.G. Shehata³  Salem Alkhalaf⁴ 

[1] Corresponding author.;Department of Computer, College of Science and Arts in Ar-Rass, Qassim University, Ar Rass, Saudi Arabia;Department of Electrical Engineering, Minia University, El-Minia 61517, Egypt;Faculty of Engineering, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami, Okinawa 903-70213, Japan;

关键词: Control techniques;    HVDC;    High impedance grid;    Manual tuning;    Modulus optimum;    Symmetrical optimum;   

DOI  :  

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown