随着计算机技术在电力系统中的应用日益普及,电站仿真技术这一新兴学科近年来在国内外蓬勃兴起,为了能够准确地描述热力设备动态过程,建立一套合理的数学模型成了问题的关键。作为电站热力设备的主要组成部分之一——汽轮机,其中间级组的损失与效率的计算,如何由正常工况推广到全工况,特别是低负荷,到目前为止,还没有见到有关能够进行准确计算的通用公式,即 With the increasing popularity of computer technology in power systems, the emerging discipline of power station simulation technology has been booming at home and abroad in recent years. In order to accurately describe the dynamic process of thermal equipment, establishing a reasonable mathematical model is the key issue . As one of the main components of power plant thermal equipment - steam turbine, the calculation of the loss and efficiency of its intermediate stage group is extended from normal working condition to full working condition, especially at low load. So far, no relevant information has been found A general formula that enables accurate calculations, that is