TITLE:
Performance of PSS to Damp Power Oscillations Caused by an HVDC Link in AC-DC Power System
AUTHORS:
Mokhtar Benasla, Tayeb Allaoui, Mostefa Brahami
KEYWORDS:
HVDC; PSS; AC-DC Power Systems; Power System Stability
JOURNAL NAME:
Energy and Power Engineering,
Vol.6 No.1,
January
22,
2014
ABSTRACT: HVDC (High
Voltage Direct Current) systems are increasingly being applied to improve power
system operation and controllability. However, inappropriate setting of HVDC
controller may have a detriment effect on the system performance. Generally, PSS (Power System Stabilizer)
is known as a simple concept, easy to perform, and computationally effective to
enhance damping of power system oscillations through excitation control of synchronous generator. This paper examines the
effectiveness of the PSS to enhance the dynamic performance of AC-DC power
systems and to compensate the negative damping of HVDC system. The dynamic
performance is evaluated by examining the system response to various disturbances.
In order to ensure the reliability of the simulation test results as well as the performance of the PSS,
detailed HVDC modeling is adopted using SimPowerSystems toolbox in the MATLAB,
and some important conclusions are drawn.