This paper proposes the use of energy methods in an on-line environment to aid in the assessment of system voltage stability. The application of energy methods to voltage stability is first reviewed. A fast algorithm then is presented for determining the low voltage power flow solutions with lowest associated energy measures. The use of these measures to assess voltage security is discussed for use both on-line and in contingency analysis. The technique is demonstrated on a 415 bus system.
- Voltage stability voltage collapse power flow
- security assessment
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering