DocumentCode :
24341
Title :
A Detailed Governor-Turbine Model for Heavy-Duty Gas Turbines With a Careful Scrutiny of Governor Features
Author :
Balaghi Enalou, Hossein ; Abbasi Soreshjani, Eshagh
Author_Institution :
Mapna Turbine Eng. & Manuf. Co. (TUGA), Tehran, Iran
Volume :
30
Issue :
3
fYear :
2015
fDate :
May-15
Firstpage :
1435
Lastpage :
1441
Abstract :
Due to substantial use of gas turbines and their highly dynamic behavior, they have a profound impact on electrical grid. Although the control philosophies of various turbines are almost the same, there are some nuances in governor systems. As long as these details affect system response in extremely dynamic phenomena such as load rejection, they should be included in models. In this paper, the governor system is subjected to careful scrutiny; tasks of controllers are classified schematically and some special features such as back-tracing and feed-forward are discussed. The turbine is also modeled and a function is developed to calculate turbine exhaust gas temperature. The proposed governor-turbine model is validated by test results and a comparative analysis shows that the back-tracing method prevents wind-up phenomenon and the feed-forward method improves stability and response time.
Keywords :
feedforward; gas turbines; load regulation; power grids; power system stability; back-tracing method; electrical grid; exhaust gas temperature; feedforward method; governor feature careful scrutiny; governor heavy-duty gas turbine; governor systemstability improvement; response time improvement; wind-up phenomenon prevention; Fuels; Load modeling; Rotors; Stability analysis; Temperature measurement; Thermal stability; Turbines; Dynamic modeling; gas turbine; governor;
fLanguage :
English
Journal_Title :
Power Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8950
Type :
jour
DOI :
10.1109/TPWRS.2014.2342253
Filename :
6876227
Link To Document :
بازگشت