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Performance Comparison between Steam Injected Gas Turbine and Combined Cycle during Frequency Drops

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Author

Summary, in English

Single-shaft gas turbine and its cycles are sensitive to frequency drops and, therefore, sudden change loads or large frequency dips might affect their stability. This phenomenon is related to the reduction of the air mass flow passing through the machine during the frequency dips, which might lead to an interaction between governor and temperature control loop. In this paper, the performance of the combined cycle and steam-injected gas turbine are studied during frequency dips and transient maneuvers. For this purpose, two similar units are developed based on these cycles and their performances are studied in different scenarios. The simulation results show that the steam injected gas turbine has a better performance during frequency drops and it can handle relatively larger change loads.

Publishing year

2015

Language

English

Pages

7582-7592

Publication/Series

Energies

Volume

8

Issue

8

Document type

Journal article

Publisher

MDPI AG

Topic

  • Energy Engineering

Keywords

  • combined cycle
  • wet cycle
  • STIG turbine
  • frequency control

Status

Published

ISBN/ISSN/Other

  • ISSN: 1996-1073