Low frequency inter-area oscillations is one of the main concerns for power system operation and control therefore damping of inter-area oscillations is necessary for secure and reliable system operation. However, to enhance damping of the inter-area modes remote signal need to be measured and feedback to the power system stabilizers. This can be done by wide area measurements, through phasor measurement units (PMUs). The power system stabilizers in conjunction with PMUs provide adequate stability. Remote signals through PMUs are of great interest to damp out inter area oscillations. In this paper enhancing the damping of the inter-area modes using wide area measurements has been addressed. The power system stabilizers has been be designed, tested and validated on real time digital simulator (RTDS). The experimental results show the effectiveness of the proposed approach to damp out the low frequency inter-area oscillations.
I.A. Khan, M. A. Abido, Presented at 2012 Saudi Arabia Smart Grid Conference (SASG), Jeddah, Saudi Arabia, December 2012
KEYWORDS: Inter area oscillations, Phasor Measurement unit, Power system stabilizers, RTDS