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针对传统蒸汽锅炉过热汽温和压力控制系统延迟大、稳定性差、参数时变慢等问题,通过采用负反馈串级控制对蒸汽锅炉的温度和压力控制系统进行重设计,并采用优化PI控制算法和增广矩阵法实现控制系统辨识与稳定性保证。测试结果表明:基于优化PI算法的温度和压力串级控制系统具有较快的系统响应速度,迅速的调节时间,强健的鲁棒性,具有优良的温度和压力控制品质。这为消失模白区用蒸汽锅炉节能技术及压调温控技术的研究提供了具体的实施方案。
Aiming at the problems of traditional steam boiler superheated steam temperature and pressure control system such as large delay, poor stability and slow parameters, the temperature and pressure control system of steam boiler was redesigned by negative feedback cascade control. The optimal PI control algorithm and Augmented Matrix Method to Realize Control System Identification and Stability Assurance. The test results show that the temperature and pressure cascade control system based on the optimized PI algorithm has faster system response speed, quick adjustment time, strong robustness and excellent temperature and pressure control quality. This provides a specific implementation plan for the research on energy saving technology of steam boiler and temperature control technology of pressure-controlled temperature in the lost white area.