Abstract
In this paper, the parametric sensitivities of structure-preserving power system model are derived. The parametric sensitivities give the sensitivities of an equilibrium point with respect to a particular parameter of interest. A new invariant subspace parametric sensitivity (ISPS) is derived by projecting the total parametric sensitivity onto a particular eigenspace of interest. The ISPS provides the sensitivity of system stability. At a particular eigensubspace, ISPS of all the parameters under consideration are represented by a right eigenvector multiplied by a scalar a. Then the parameter which has the most influence on the subspace can be determined by selecting the largest value of a. The methodology is applied to a New England 39-bus system to identify components and parameters that are responsible for a possible system instability.
Original language | English |
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Pages (from-to) | 845-850 |
Number of pages | 6 |
Journal | IEEE Transactions on Power Systems |
Volume | 11 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1996 |
Externally published | Yes |
Bibliographical note
Funding Information:is supported by all the
Keywords
- Bifurcation
- Invariant subspace
- Parametric sensitivity
- Structure-preserving models
- Voltage stability
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering