基于双闭环控制结构的再热汽温控制方法、系统及设备
By employing a reheat steam temperature control method with a dual closed-loop control structure, utilizing an integral-enhanced PID controller and a predictive loop PID controller, the problem of unmeasurable intermediate variables in reheat steam temperature control is solved, achieving accurate prediction and rapid response of reheat steam temperature and improving control performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUODIAN NANJING ELECTRIC POWER TEST RES CO LTD
- Filing Date
- 2023-08-18
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the traditional PID controller has the problem of unmeasurable intermediate variables in its preparation method and system, and its application in reheat steam temperature control, which makes it difficult to apply the cascade PID control method to reheat steam temperature control.
A reheat steam temperature control method based on a dual closed-loop control structure is adopted, including an integral-enhanced PID controller, a predictive loop PID controller, a nominal model of a slow-changing element, a nominal model of a fast-changing element, and an error compensator. By predicting intermediate variables and compensating for errors, real-time feedback control of reheat steam temperature is achieved.
It achieves accurate prediction and rapid response of reheat steam temperature, overcomes system errors and disturbances, and improves control performance and response speed.
Smart Images
Figure CN116880156B_ABST