Combining Strategies to Compute the Loadability Margin in Dynamic Security Assessment of Power Systems

Author(s)

Bento, Murilo E. C. ; Ferreira, Daniela A. G. ; Grilo-Pavani, Ahda P. ; Ramos, Rodrigo A. ; IEEE

• Document type: Journal article
• Source: 2021 IEEE POWER & ENERGY SOCIETY GENERAL MEETING (PESGM); v. N/A, p. 5-pg., 2021-01-01.

Abstract

The load margin due to voltage instability and small-signal instability can be a valuable measure for the operator of the power system to ensure a continuous and safe supply of electricity. However, if this load margin was calculated without considering system operating requirements, then this margin may not be adequate. This article proposes an algorithm capable of providing the power system load margin considering the requirements of voltage stability, small-signal stability, and operational requirements, as limits of reactive power generation of synchronous generators in dynamic security assessment. Case studies were conducted in the 107-bus reduced order Brazilian system considering a list of contingencies and directions of load growth. (AU)

• FAPESP's process: 20/08256-8 - Operation planning of reactive power and voltage controls considering voltage stability constraints
• Grantee: Daniela Arantes Gomes Ferreira
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• FAPESP's process: 15/24245-8 - Fast Method for Dynamic Security Analysis of Power System Considering Small-Signal and Voltage Stability
• Grantee: Murilo Eduardo Casteroba Bento
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 18/20104-9 - Wide-area monitoring, dynamic security analysis and control of modern power system networks
• Grantee: Luís Fernando Costa Alberto
• Support Opportunities: Research Projects - Thematic Grants