Power system multi-parameter small signal stability analysis based on 2nd order perturbation theory
A novel method to analyze low-frequency oscillation modes is proposed. Estimate accurately even several uncertain parameters in the system change largely. The methods avoids the burdensome derivation calculation of 2nd order sensitivity. Saving calculating time by avoiding solving complicated high-dimensional state matrix. More accurate compared with the 1st order perturbation theory.
2nd order perturbation theory low-frequency oscillation mode analysis sensitivity matrix