The Optimal Steam Pressure of Thermal Power Plant in a Given Load ()
Abstract
As the large change of the grid load, many large capacity units of our country had to change the load in order to meet the gird need. When a thermal power plant receives a given load instruction from the grid, it is necessary to set an optimal steam pressure to maintain the high efficiency of the plant. In the past optimization methods, during the process of calculation, the output of the turbine often changed, it was hard to maintain the output constant. Therefore, in combination with the theory of variable condition of turbine, calculation of governing stage and the matrix equation of thermal power system, an optimization method were put forward and an optimal solution was got in a given load.
Share and Cite:
Y. Hu, J. Liu, D. Zeng, W. Wang and Y. Li, "The Optimal Steam Pressure of Thermal Power Plant in a Given Load,"
Energy and Power Engineering, Vol. 5 No. 4B, 2013, pp. 278-282. doi:
10.4236/epe.2013.54B054.
Conflicts of Interest
The authors declare no conflicts of interest.
References
[1]
|
C. F. Zhang and Y. H. Cui, “The Distinguishing Theory of Critical State of Turbine and Improved Flugel Formula,” Science in china Series E, Vol. 33, No. 3, 2003, pp. 264-272.
|
[2]
|
L. X. Zhou and M. Hua, “Method for Calculating Main Steam Pressure and Heat Rate Correction Curves Under Off-design Operating Conditions,” Journal of Engineering for Thermal Energy and Power, Vol. 26, No. 3, 2011, pp. 351-353.
|
[3]
|
Z. P. Yang and Y. P. Yang, “Sensitivity Analysis on Energy Consumption of Exhaust Steam Pressure of 1000 MW Steam Turbine Unit, ” East China Electric Power, Vol. 39, No. 2, 2011, pp. 2064-2067
|
[4]
|
S. L. Yan and C. F. Zhang, “The Steam-Water Distribution General Matrix Equation of Thermal System for the Coal-Fired Power Unit,” Proceedings of the CSEE, Vol. 20, No. 8, 2000, pp.69-73.
|
[5]
|
N. Zhao, “The Research of the Relation between Pressure Rate and Flow and the Target Value of the Thermal Parameters under Variable Working Conditions of Steam Turbine,” North China Electric Power University, 2008.
|
[6]
|
P. Li and M. Hua, “Research on Target Value of BFPT Parameters for Sliding Pressure Operation Unit,” Thermal Turbine, Vol. 39, No. 4, 2010, pp. 251-254.
|
[7]
|
C. F. Zhang and H. J. Wang, “Quantitative Research of Optimal Initial Operation Pressure for the Coal-fired Power Unit Plant,” Proceedings of the CSEE, Vol. 26, No. 4, 2006, pp. 36-40.
|