Power system loading margin enhancement by optimal STATCOM integration – A case study

Sasidharan Sreedharan, Tibin Joseph, Sebin Joseph, Chittesh Veni Chandran, Vishnu J, Vipin Das P

Research output: Contribution to journalArticlepeer-review

Abstract

Safe and secure network operation with acceptable voltage level has become a challenging task for utilities requiring corrective measures to be implemented. Network upgrades using Flexible Alternating Current Transmission System devices are being considered to serve this purpose. To this end, static loading margin enhancement by optimal static synchronous compensator (STATCOM) allocation to enhance the power transfer capability with minimal voltage variation is presented. Maximum loadability is formulated as an optimization problem, subjected to voltage and small-signal stability constraints. Stability indices are presented and incorporated with the optimization problem to ensure secure operation under maximum loading. The scheme is executed with the IEEE system and an Indian utility network. Improved voltage regulation with different loading condition was achieved for both test networks, with the service rendered by the optimally placed STATCOM. Moreover, it facilitates an additional 50% capacity release in both test systems for hosting the active power and loads.

Original languageEnglish
Article number106521
JournalComputers and Electrical Engineering
Volume81
DOIs
Publication statusPublished - Jan 2020
Externally publishedYes

Keywords

  • Genetic algorithm
  • Hosting capacity
  • Loading margin
  • Optimal placement
  • Optimization algorithms
  • Power system security and stability

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