Adjustment and research on the nozzle governing ultra-supercritical unit's operation mode

[摘要] The mixed-valve sequence of an ultra-supercritical steam turbine designed by the manufacturer is only applicable to basic load. The best initial steam pressure corresponding to the different load under the sequence-valve sequence is determined by field optimization test, which can improve the operating economy and the frequency-modulation response capability under partial load.

[发布机构] Jiang Xi Electric Power Science and Research Institute, Nanchang Jiangxi Province; 330096, China^1

[效力级别] 生态环境科学

[关键词] Field optimization;Modulation response;Operating economy;Operation mode;Partial load;Steam pressures;Supercritical steam turbines;Ultra-supercritical units