燃机电厂高压汽包水位自动控制优化浅析  

The Optimization of Automatic Control of Drum Level in Gas Turbine Power Plant

作　　者：阮雷钧 金智伟 胡方明 Ruan Leijun;Jin Zhiwei;Hu Fangming(Zhejiang Zheneng Changxing Power Plant Co.,Ltd.,Zhejiang,Changxing,313100,China;Huaneng Tongxiang Gas Turbine Thermal Power Co.,Ltd.,Zhejiang,Tongxiang,314513,China;Hangzhou Zhongxingda Technology Co.,Ltd.,Hangzhou,310052,China)

机构地区：[1]浙江浙能长兴发电有限公司,浙江长兴313100 [2]华能桐乡燃机热电有限责任公司,浙江桐乡314513 [3]杭州中兴达科技有限公司,杭州310052

出　　处：《仪器仪表用户》2022年第9期82-85,共4页Instrumentation

摘　　要：结合节能降耗要求优化高压汽包水位控制方案,优化后控制策略为高压给水泵控制高压汽包水位,高压给水调阀控制给水母管压力。优化控制后,将减少高压给水调节阀节流损失,降低高压给水泵电耗。控制优化综合考虑机组投入AGC模式与锅炉定排时对高压汽包水位造成较大的扰动,通过增加指令前馈与流量前馈等逻辑优化,保证高压汽包水位调节全过程自动投入。The control scheme of high-pressure drum level is optimized according to the requirements of energy saving.The optimized control strategy is that the high-pressure feedwater pump controls the high-pressure drum level,and the high-pressure feedwater regulating valve controls the pressure of the main feedwater pipe.After optimization,the throttling loss of the high-pressure feedwater regulating valve and the power consumption of the high-pressure feedwater pump is both reduced.The optimized control strategy comprehensively considers the large disturbance to the high-pressure drum level when the unit is put into the AGC mode or the boiler is intermission-draining.By adding logic optimizations such as command feedforward and flow feedforward,the automatic adjustment of the high-pressure drum level in the whole process is guaranteed.

关 键 词：节能降耗 优化控制方案 前馈 减少节流损失 降低电耗 

分 类 号：TK223.7[动力工程及工程热物理—动力机械及工程]