电网技术2017，Vol.41Issue(11)：3620-3623,4.DOI:10.13335/j.1000-3673.pst.2017.1301
考虑燃烧室压力动态的燃气轮机调速系统建模
Modeling of Gas TurbineSpeed Governors Considering Air Pressure Dynamics of Combustion Chamber
摘要
Abstract
In existing power system simulation software, varying regularitiesof air pressure incombustion chamber were not considered in primary frequency regulation (PFR) simulation using gas turbine speed governors system. This resulted in simulation error deviated from practice. Working characteristics of gas turbine in PFR wereanalyzed. It is found out that the bypass valve will in real-time adjust combustion chamber air-fuel ratio so that combustion stability of gas turbine was maintained, and the combustion chamber pressure and gas turbine poweroutput would be changed.A new simulation model of gas turbine speed governor was established,embodyingair pressure dynamic effect of combustion chamber.The air pressure of combustion chamber was modified with gas turbine nozzle action, and thenair-fuel ratio control process was carried on.Simulation and experiment results showed that the model can truly represent real frequency-governingpropertiesof gas turbine governors.关键词
燃气轮机/调速系统/燃烧室/建模/一次调频Key words
gas turbine/speed governor system/combustion chamber/modeling/PFR分类
信息技术与安全科学引用本文复制引用
韩志勇,武朝强,王官宏,李志强,周成..考虑燃烧室压力动态的燃气轮机调速系统建模[J].电网技术,2017,41(11):3620-3623,4.基金项目
国家电网公司总部科技项目(XT 71-16-030).Project Supported by State Grid Corporation of China (XT71-16-030). （XT 71-16-030）
