Shutdown control method, device and equipment for thermal power generating unit and storage medium

• Main Authors: YANG HUI, XU TAO, WANG XIN, ZHANG DUO, YU LONG, MA JUN, LI JINGYUE, WANG GUIBIN, WANG KAIJIE, KANG LEI, DING GANG, ZHUANG WEI, QIU GUOSHEN, ZHAI JINXING, ZHANG JIWEI, ZHANG JINGHUI, ZHOU ZUOFA, CHENG MING
• Format: Patent
• Language: Chinese; English
• Published: 24.11.2023
• Subjects: CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

The invention discloses a shutdown control method, device and equipment of a thermal power generating unit and a storage medium. The method comprises the following steps: determining a corresponding set value curve for target operation parameters of a thermal power generating unit in a first shutdown stage; in the second shutdown stage, attemperation water control parameters of the main steam and the reheat steam are determined for the thermal power generating unit; in a third shutdown stage, determining a target load point of at least one shutdown sub-operation for the thermal power generating unit; and in the fourth shutdown stage, PID control parameters of the main steam and the reheat steam are determined for the thermal power generating unit, and the thermal power generating unit is controlled to operate stably according to the PID control parameters. According to the technical scheme, the fluctuation amplitude of main parameters in the sliding parameter shutdown process is reduced, the response speed of