In this paper, a fast method of evaluating the transient stability of power systems using a topological energy function is presented. This is applicable to the case when the load buses are uncoupled and for a class of nonlinear voltage dependent loads. A topological energy function (TEF), using centre of angle (COA) formulation, is used for computation of the stability region. A power Invariant transformation is presented which leads to the decoupling of load buses in a practical system with connected load buses. Although the load characteristics do not remain invariant under this transformation, approximations can be introduced to facilitate the analysis. A numerical example is precentod to illustrate the application of the method. © 1986 by Hemisphere Publishing Corporation.
| dc.contributor.author | Padiyar, K.R. | |
| dc.contributor.author | Sastry, H.S.Y. | |
| dc.date.accessioned | 2026-02-05T11:00:44Z | |
| dc.date.issued | Fast evaluation of transient stability of power systems using a structure preserving energy function | |
| dc.description.abstract | 1986 | |
| dc.identifier.citation | Electric Machines and Power Systems, 1986, 11, 5, pp. 421-441 | |
| dc.identifier.issn | 0731356X | |
| dc.identifier.uri | https://doi.org/10.1080/07313568608909198 | |
| dc.identifier.uri | https://idr.nitk.ac.in/handle/123456789/28124 | |
| dc.subject | ELECTRIC NETWORKS - Transients | |
| dc.subject | SYSTEM STABILITY | |
| dc.subject | CENTER OF ANGLE (COA) | |
| dc.subject | POWER FLOW EQUATIONS | |
| dc.subject | POWER INVARIANT TRANSFORMATION | |
| dc.subject | TOPOLOGICAL ENERGY FUNCTION | |
| dc.subject | TRANSIENT STABILITY | |
| dc.subject | ELECTRIC POWER SYSTEMS | |
| dc.title | In this paper, a fast method of evaluating the transient stability of power systems using a topological energy function is presented. This is applicable to the case when the load buses are uncoupled and for a class of nonlinear voltage dependent loads. A topological energy function (TEF), using centre of angle (COA) formulation, is used for computation of the stability region. A power Invariant transformation is presented which leads to the decoupling of load buses in a practical system with connected load buses. Although the load characteristics do not remain invariant under this transformation, approximations can be introduced to facilitate the analysis. A numerical example is precentod to illustrate the application of the method. © 1986 by Hemisphere Publishing Corporation. |