Identification of critical cutsets for static collapse analysis

Brian C. Raczkowski, Peter W. Sauer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper deals with Static Transfer Stability Limits (STSLs) of network branches, cutsets of network branches, and their relation to power flow Jacobian singularity. A minimal cutset is a grouping of system branches that - if removed from the system - separates the seller and buyer for a given transaction into two separate subsystems (islands) of the original network while containing no unnecessary branches in the grouping. Originally, it was proposed to define a critical cutset as a minimal cutset of system branches that exactly reaches its own cutset STSL (CSTSL) at the instant of power flow Jacobian singularity. However, it is shown that line inductive losses can reveal more information. A critical cutset is defined as the transfer loss stability limit (Critical Cut TLSL) as the point of system collapse. This paper proposes a conjecture that at least one minimal cutset in a power system is the critical cutset for a given transfer. Multiple power system models are analyzed to experimentally support the conjecture.

Original languageEnglish (US)
Title of host publication2007 iREP Symposium- Bulk Power System Dynamics and Control - VII, Revitalizing Operational Reliability
DOIs
StatePublished - Dec 1 2007
Event2007 iREP Symposium- Bulk Power System Dynamics and Control - VII, Revitalizing Operational Reliability - Charleston, SC, United States
Duration: Aug 19 2007Aug 24 2007

Publication series

Name2007 iREP Symposium- Bulk Power System Dynamics and Control - VII, Revitalizing Operational Reliability

Other

Other2007 iREP Symposium- Bulk Power System Dynamics and Control - VII, Revitalizing Operational Reliability
CountryUnited States
CityCharleston, SC
Period8/19/078/24/07

Keywords

  • Cutsets
  • Island
  • Jacobian singularity
  • Line Static Transfer Stability Limit (STSL)
  • Static collapse
  • Voltage stability

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Control and Systems Engineering

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  • Cite this

    Raczkowski, B. C., & Sauer, P. W. (2007). Identification of critical cutsets for static collapse analysis. In 2007 iREP Symposium- Bulk Power System Dynamics and Control - VII, Revitalizing Operational Reliability [4410565] (2007 iREP Symposium- Bulk Power System Dynamics and Control - VII, Revitalizing Operational Reliability). https://doi.org/10.1109/IREP.2007.4410565