Study On Integrated Optimization Of The Auxiliary Power Ratio And Its Application In WuJin No.2 Power Plant

Thermal power generation is the key approach of power generation in China.The auxiliary power ratio in thermal power plants is one of the main indexes that could measure energy consumption level of thermal generator units.With the marketization of electricity market in China,except for securing electricity supply,power generation enterprises must also consider to increase benefits by improving productive efficiency and reducing costs.Based on studying 2×600MW unit of Wu Jing No.2 Power Plant,this thesis sets forth an intensive research on auxiliary power ratio integrated optimization and corresponding application.Firstly,based on the formation of auxiliary power of Wujing No.2 Thermal Power Plant,and the summary of various factors that could impact the auxiliary power,the potential of their energy conservation extent were induced.Secondly,analysis and summarizes a series of energy conservation measures that aimed at those various factors by in terms of energy conservation reformation of the thermodynamic systems,the applications of the frequency conversion systems and the operation optimized Measures.Finally,through the comparison of energy conservation effect prior to and after the optimization,the estimates of the energy conservation extent resulting from these optimization approach and based on practical engineering experience,improves the conventional estimation approach on auxiliary power and calculates the result after its integrated optimizations.After comparing the estimated results with the measured results and conducting the modification based on the loading rate,puts forward an estimation approach with lower error rate that is also able to reflect the realities.The proposed integrated optimization and estimation approach of the auxiliary power ratio can be used as a valuable reference in the similar power plant units in China.