考虑环境温度变化时燃气轮机控制策略优化选择

摘要

For a simple cycle three-shaft gas turbine, a thermodynamic model of a three-shaft gas turbine was established with object-oriented modeling concept and modular modeling method, and steady state per- formance simulation under different ambient temperature was carried out. In the two operation conditions of 1.0 and 0.35, the effect of ambient temperature on thermodynamic parameters, specific power and thermal efficiency of gas turbine under four different control strategies were analyzed, and the calculated results were compared with the gas turbine rig test data. The resuhs showed that effect of ambient temperature on three-shaft gas turbine is different under different control strategy and different operation conditions, and relevant factors must be considered to select the appropriate control strategy.%针对某型简单循环三轴燃气轮机，基于面向对象的建模理念，运用模块化建模方法，建立了三轴燃气轮机的热力学模型，开展了环境温度变化时的稳态性能仿真。在1．00和O．35两种工况下，分析了四种不同控制策略下，环境温度对燃气轮机重要监控参数及装置的比功率、热效率等的影响，并将计算结果与燃气轮机台架试车实际数据进行了对比分析。结果表明：不同控制策略及不同工况下，环境温度对三轴燃气轮机的影响程度不同，需要综合考虑相关因素，以选择相应的控制策略。