Title :
Robust design of fixed-parameter power system stabilisers over a wide range of operating conditions
Author :
Gibbard, Michael J.
Author_Institution :
Dept. of Electr. & Electron. Eng., Adelaide Univ., SA, Australia
fDate :
5/1/1991 12:00:00 AM
Abstract :
The approach of M.J. Gibbard (see Proc. IEE, vol.135(4), pt.C, p.276-84, July 1988) for the coordinated design of power system stabilizers (PSSs) in multimachine power systems is further developed. The aim of the approach is to provide, through the action of the stabilizer, an electrical damping torque proportional to speed perturbations, i.e. Δdi(s)=Di Δωi(s). The stabilizer network is designed to compensate for the torque-reference voltage transfer function ΔPei(s)/Δνri (s). It is demonstrated that this transfer function remains more or less invariant over a wide range of operating conditions. As a result, it is shown that the design approach yields fixed-parameter PSSs which are robust over a wide range of conditions
Keywords :
compensation; control system synthesis; damping; electric machines; power system control; stability; torque control; transfer functions; voltage control; compensation; control system synthesis; design; electrical damping torque; fixed-parameter power system stabilisers; multimachine power systems; operating conditions; speed perturbations; torque-reference voltage transfer function; Australia; Damping; Power engineering and energy; Power system modeling; Power system stability; Power systems; Robustness; Torque; Transfer functions; Voltage;
Journal_Title :
Power Systems, IEEE Transactions on
