Title :
Performance of power oscillation damping controllers with different static load characteristics
Author :
Modi, Nilesh ; Saha, Tapan Kumar ; Mithulananthan, N.
Author_Institution :
Sch. of Inf. Technol. & Electr. Eng., Univ. of Queensland, Brisbane, QLD, Australia
Abstract :
Low-frequency inter-area oscillations are threat to secure operation of power systems. Power system stabilizer and Power oscillation damping controllers are used to provide damping to oscillatory modes. Such oscillatory modes, inter-area modes in particular, are significantly affected by change in operating conditions and load characteristics. In this paper, influence of load characteristics on performance of two distinct power oscillation damping controllers is being examined. The interaction between load characteristic and performance of power oscillation damping controller is explored in terms of damping contribution by individual controller on inter-area mode. Eigenvalue analysis approach is used to evaluate the performance of power oscillation controllers, which are designed based on residue compensation technique and H∞ loop-shaping technique respectively. This paper also addresses the dynamic behaviour of the two controllers under different operating conditions and load characteristics.
Keywords :
H∞ control; control system synthesis; damping; eigenvalues and eigenfunctions; load regulation; oscillations; power system security; power system stability; H∞ loop-shaping technique; eigenvalue analysis; interarea mode; load characteristics; low frequency interarea oscillation; oscillatory mode; power oscillation damping controller; power system secure operation; power system stabilizer; residue compensation technique; static load characteristics; Damping; Load modeling; Mathematical model; Oscillators; Power system dynamics; Power system stability; Static VAr compensators; Inter-area Oscillation; Load Characteristics; Power Oscillation Damping Controller; Small-signal Stability;
Conference_Titel :
Power and Energy Society General Meeting, 2011 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4577-1000-1
Electronic_ISBN :
1944-9925
DOI :
10.1109/PES.2011.6039016