火力发电厂性能计算与能损分析的研究与实现

对火力发电厂能损分析中的一些重要问题进行了探讨，包括能损分析比较原理，应达值及基准工况的选取，求解湿蒸汽焓值的改进方法以及母管制机组中的义务分配等，提出了以实际运行工况为基准的偏差分析方法，避免了对变工况模型的依赖以及由于模型不完善可能导致的误差，具有真实反映机组性的优点，最后介绍了一种简便易行的能 分析系统的实现方案，并展示了某100MW机组的能损分析计算结果。

Research and Realization of Performance Evaluation System of Thermal Power Plant

Some important issues in the development of performance evaluation of thermal power plants are discussed, including the criteria for performance comparison, the selection of ideal load case and corresponding performance values, the improved method for the determination of wet steam enthalpy in the last stages of steam turbine and so on. A new difference analysis method is put forward. Its idea is to use the real operation case as comparison standard rather than using a conceived ideal case and avoids the dependence on suspicious off-design model. Finally, the paper introduced a practical engineering scenario for the implementation of performance evaluation system in thermal power plant and the analysis results of a 100MW unit were shown.