| 带前馈补偿的主汽温DMC-PID串级控制策略 |
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| 引用本文： | 杨彦波,王 振.带前馈补偿的主汽温DMC-PID串级控制策略[J].防灾减灾工程学报,2014(3):51-55. |
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| 作者姓名： | 杨彦波 王 振 |
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| 作者单位： | 国网宁夏电力公司电力科学研究院, 宁夏 银川 750011;中国科学技术大学自动化系, 安徽 合肥 230026 |
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| 摘 要： | 针对某发电厂 300 MW 机组的主汽温控制系统目前采用的比例-积分-微分(Propor-tion-integration-differentiation,PID)串级控制方式,因对象工艺繁杂、时间延迟大,且扰动影响因素多(负荷、压力、给水温度和流量),导致模型辨识复杂、控制手段实施难度大的问题,基于动态矩阵控制算法,提出一种带前馈补偿的主汽温度串级控制策略。现场应用表明:该方法在负荷不稳定时具有较好的控制效果。
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| 关 键 词： | 动态矩阵控制(Dynamic Matrix Control DMC) DMC-PID 前馈补偿 主汽温 |
The strategy of cascaded DMC-PID with feed-forward compensation in main steam temperature control system |
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| YANG Yanbo,WANG Zhen.The strategy of cascaded DMC-PID with feed-forward compensation in main steam temperature control system[J].Journal of Disaster Prevent and Mitigation Eng,2014(3):51-55. |
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| Authors: | YANG Yanbo WANG Zhen |
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| Institution: | Power Science Research Institute of State Grid Ningxia Power Co.,Yinchuan Ningxia 750011 ,China; Automatization Department of China Science and Technology University,Hefei, 230026 ,China |
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| Abstract: | The main steam temperature control system of 300 MW unit in a power plant presentlyuses Proportion-integration-differentiation (PID)cascaded way,lead to the complex of the modelidentification and uneasy implemention of the control ways for the factors of complex technicprocess,time delay big and a lot of disturbances (varying load,pressure,feed water temperatureand flow),based on dynamic matrix control calculation method,puts forward a cascaded controlstrategy of main steam temperature with feed-forward compensation. The practical application showsthat the method has better control effect when the load is unsteady. |
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