The Optimal Steam Pressure of Thermal Power Plant in a Given Load

Yong Hu, Ji-zhen Liu, De-liang Zeng, Wei Wang, Ya-zhe Li

North China Electric Power University, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, Beijing, China.

DOI: 10.4236/epe.2013.54B054                

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.

Keywords

Given Load; Pressure Optimization; Variable Condition; Thermal Power Plant

Conflicts of Interest

The authors declare no conflicts of interest.

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