UPFC for enhancing power system reliability

Rajabi-Ghahnavieh, A ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1109/TPWRD.2010.2051822
  3. Abstract:
  4. This paper discusses various aspects of unified power flow controller (UPFC) control modes and settings and evaluates their impacts on the power system reliability. UPFC is the most versatile flexible ac transmission system device ever applied to improve the power system operation and delivery. It can control various power system parameters, such as bus voltages and line flows. The impact of UPFC control modes and settings on the power system reliability has not been addressed sufficiently yet. A power injection model is used to represent UPFC and a comprehensive method is proposed to select the optimal UPFC control mode and settings. The proposed method applies the results of a contingency screening study to estimate the remedial action cost (RAC) associated with control modes and settings and finds the optimal control for improving the system reliability by solving a mixed-integer nonlinear optimization problem. The proposed method is applied to a test system in this paper and the UPFC performance is analyzed in detail
  5. Keywords:
  6. Composite system reliability ; Optimal control mode and settings ; Unified power flow controller (UPFC) ; Bus voltage ; Comprehensive method ; Contingency screening ; Control modes ; Flexible AC transmission system ; Line flows ; Mixed-integer nonlinear optimization problems ; Optimal controls ; Power injection ; Power system operations ; Power system reliability ; Power systems ; Remedial actions ; System reliability ; Test systems ; Control ; Controllers ; Electric power transmission ; Flow control ; Integer programming ; Optimization ; Power converters ; Power electronics ; Reliability ; Electric control equipment
  7. Source: IEEE Transactions on Power Delivery ; Vol. 25, issue. 4 , 2010 , p. 2881-2890 ; ISSN: 8858977
  8. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5546960