1000 MW机组变频发电机项目热经济性分析

Thermal Economic Analysis of 1000 MW Unit Variable Frequency Generators

为考察1 000 MW机组变频发电机的热经济性,调研了上海某厂两台1 000 MW机组变频发电机项目,结合安徽某电厂二期正在扩建的两台1 000 MW机组,初步拟定变频发电机项目方案,运用定流量分析法计算其热经济性,结果表明实施变频发电机项目,机组上网净功减少,理论供电标准煤耗率有所上升.建议缓建变频发电机项目.

In order to study the thermal economic characteristics of a 1 000 MW-unit variable frequency generator,this paper examines two 1 000 MW units of variable frequency generators in a Shanghai factory.An initial plan for a variable frequency generator project is devised based on two 1 000 MW units of an Anhui power plant,the second expansion phase of which is now in construction. The steady flow analysis method is adopted to calculate its thermal economic characteristics.The results show that the application of this plan increases the network power of the unit,and that the theoretical standard coal consumption rate of power supply will rise.It is thus advised that construction of variable frequency generator projects should be suspended.