关于汽轮发电机组热经济学边际成本的研究  

A STUDY ON THE THERMOECONOMIC MARGINAL COSTS OF STEAM TURBO-GENERATOR UNIT

作　　者：张晓东[1] 王加璇[1] 高波 

机构地区：[1]华北电力大学,北京102206 [2]北京许继电气有限公司,北京100085

出　　处：《中国电机工程学报》2003年第5期140-143,160,共5页Proceedings of the CSEE

基　　金：国家973基金项目(G2000026307)~~

摘　　要：该文以典型的多联产汽轮机组元为例,研究了复杂能量系统的热经济学成本分析方法,特别是当子系统有多股输出能流时,边际成本的分摊计算问题,并分析了边际成本与平均成本之间的关系。在热经济学结构理论的框架内,对各股能流的边际成本及其与该股能流的单位边际火用耗之间的依存关系作了探讨。单位边际耗的计算取决于组元的物理特性方程,该文分析了影响汽轮机组元运行特性的主要因素,并通过分析实际机组的能耗特性数据,指出了利用运行数据实时建立组元特性方程的方法以及应该注意的一些问题。The thermoeconomic costs analysis of acomplex thermal power system is studied. Much more attention is paid to the analysis method for marginal costs allocation in subsystem containing an energy flow bifurcation. A typicalexample is cogeneration steam turbine. The relationshipbetween marginal and average costs is analyzed. Thedependence relationship between marginal costs of a streamand its unit marginal exergy consumption is discussed within the framework of Structural Theory. The calculation of unit marginal exergy consumption of a stream is subject to thecharacteristic equation of the component the stream belongs to. A scheme for getting characteristic equations based onoperation data is introduced with consideration of theparameters that mostly affect the operation characteristics. The energy consumption curves of a real plant are provided as an example. Some problems worthy to pay more attention are also recommended.

关 键 词：汽轮发电机组 热经济学 边际成本 微增特性 热力学 数学模式 

分 类 号：TM311[电气工程—电机]