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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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超临界600mw机组锅炉负荷控制策略优化
, PP. 113-115
Keywords: 超临界,600mw机组,锅炉负荷控制,煤质自校正,中间点温度,给煤量,给水流量
Abstract:
针对某超临界600mw机组锅炉煤质变化、磨煤机一次风量测量不准确,使得锅炉负荷难以自动控制的问题,在分析给煤量跟踪给水流量和给水流量跟踪给煤量2种锅炉负荷控制策略的基础上,采用在控制中增加煤质自校正功能的方法,对给水流量跟踪给煤量锅炉负荷控制策略进行了优化。实际应用结果表明,在自动发电控制(agc)方式且机组大幅度变负荷工况下,锅炉负荷控制系统能够以1.0～1.5%/min的速率响应agc指令,并将主蒸汽压力、温度控制在±0.4mpa和±4℃内,满足dl/t774―2004标准的要求。
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