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| Assessment of PSS Performance for Damping Low Frequency Oscillations in Power System |
Bahaaldeen Mohammed , Badreldeen Abdallah, Mohammed Elmubarak Adam , Abubakr Mustafa , Osman Osman , Azzam Abdlmoneam, Mohammed Mohammed
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Abstract:
The power system consists of a number of synchronous generators in different power stations that rotate at synchronous speeds to feed the required loads in the case of stability. However, when these loads change or fault occurs that cause the swing of these machines due to unequal of input and output capacity of generators, the effect of this oscillation may transfer from one machine to another through the network of the system, which leads to the increase of the oscillation of some machines and out of service or damp this swing and return to stability by using one of the damping controller. In this research, the performance and efficiency of (PSS) was studied by applying it to (3-machine 9-bus) by finding the eigenvalues and time domain simulation under different operating conditions represent the system's response to low oscillations which came from low change in mechanical input capacity, The results of eigenvalue analysis and time domain proved efficient and effective of PSS in enhancing stability and increasing the percentage of damping ratio.
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