| 汽包水位调节异常的分析与处理 |
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| 引用本文： | 黄卫剑,王媛,赖朴溪. 汽包水位调节异常的分析与处理[J]. 广东电力, 2010, 23(2): 67-70 |
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| 作者姓名： | 黄卫剑 王媛 赖朴溪 |
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| 作者单位： | 广东电网公司电力科学研究院,广东,广州,510600;珠江电厂,广东,广州511457 |
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| 摘 要： | 针对某电厂300MW机组汽包水位出现调节异常现象的问题,分别分析汽包水位调节异常时的汽包水位调节过程、总给水流量调节过程、各水泵入口流量调节和电动泵泵速调节过程,确定了汽包水位调节异常的原因是给水流量调节器调节作用过强所致。为此,将总给水流量比例-积分-微分(proportional-integral-derivative,PID)调节器的积分时间由原来的30s修改为2min,汽包水位出现调节异常现象的问题得到解决,并提出了提高多级串级系统调节稳定性的建议。
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| 关 键 词： | 汽包水位 给水流量 转速 串级调节系统 |
Analysis and Treatment of Drum Level Regulation Abnormality |
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| HUANG Wei-jian,WANG Yuan,LAI Pu-xi. Analysis and Treatment of Drum Level Regulation Abnormality[J]. Guangdong Electric Power, 2010, 23(2): 67-70 |
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| Authors: | HUANG Wei-jian WANG Yuan LAI Pu-xi |
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| Affiliation: | 1.Electric Power Research Inst.of Guangdong Power Grid Corp.;Guangzhou;Guangdong 510600;China;2.Zhujiang Power Plant;Guangdong 511457;China |
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| Abstract: | In view of the drum level regulation abnormality of a 300 MW unit,the abnormal phenomena of drum level control,total feed water flow control,water pump inlet flow control and motor-driven pump speed adjustment are analysed.It is confirmed that the drum level control abnormality is caused by the excessive regulation of feed water flow regulator.Accordingly,the integral time of proportional-integral-derivative(PID) regulator of total feed water flow is amended from 30 s to 2 min to solve the problem of drum l... |
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| Keywords: | drum level feed water flow rotational speed cascade control system |
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