火电厂 660mw 超临界机组主汽压力波动异常分析及处理措施研究

Key Points

• The study aims to analyze and propose solutions for abnormal main steam pressure fluctuations in supercritical units.
• Analyzed factors affecting steam pressure fluctuations, such as valve switching and fuel-water ratio imbalance.
• Implemented gain-scheduling control to optimize PID parameters.
• Enhanced emergency responses for equipment failures, including safety valve operations.
• Main steam pressure fluctuation amplitude significantly reduced.
• Duration of fluctuations shortened, improving unit safety and stability.
• Economic performance of the unit enhanced through optimized operations.