Modeling combined-cycle power plant for simulation of frequency excursions

Author

Kunitomi, Kazuyoshi ; Kurita, Atsushi ; Tada, Yasuyuki ; Ihara, Satoru ; Price, William W. ; Richardson, Leon M. ; Smith, Gordon

Author_Institution

Electr. Power R&D Center, Tokyo Electr. Power Co. Inc., Japan

Volume

18

Issue

2

fYear

2003

fDate

5/1/2003 12:00:00 AM

Firstpage

724

Lastpage

729

Abstract

The maximum continuous power output of a combined-cycle power plant depends on the system frequency and the ambient temperature. The temperature control of a gas turbine limits the exhaust temperature by reducing the fuel flow as the airflow decreases with the shaft speed. In this paper, a simple model of a combined-cycle power plant is derived from a detailed design model for an example plant. The model is suitable for long-term simulation of power system dynamic performance involving abnormal frequency conditions.

Keywords

boilers; combined cycle power stations; gas turbines; steam turbines; temperature control; abnormal frequency conditions; ambient temperature; combined-cycle power plant; combined-cycle power plant modeling; exhaust temperature limiting; frequency excursions simulation; fuel flow reduction; gas turbine; gas turbines; heat recovery steam generators; long-term simulation; maximum continuous power output; power system dynamic performance; steam turbines; temperature control; Frequency; Fuels; Power generation; Power system dynamics; Power system modeling; Power system simulation; Shafts; Temperature control; Temperature dependence; Turbines;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/TPWRS.2002.807112

Filename

1198307