Sliding Mode Predictive Control of Main Steam Pressure in Coal-fired Power Plant Boiler*

Chin.J.Chem.Eng. ›› 2012, Vol. 20 ›› Issue (6): 1107-1112.

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Sliding Mode Predictive Control of Main Steam Pressure in Coal-fired Power Plant Boiler^*

SHI Yuanhao, WANG Jingcheng, ZHANG Yunfeng

Department of Automation, Shanghai Jiao Tong University, and Key Laboratory of System Control and Information Processing, Ministry of Education, Shanghai 200240, China

Received:2012-04-21 Revised:2012-07-26 Online:2012-12-28 Published:2012-12-28
Supported by:
Supported by the National Natural Science Foundation of China (61174059;60934007;61233004);the National Basic Research Program of China (2013CB035406);Shanghai Rising-Star Tracking Program (11QH1401300)

Sliding Mode Predictive Control of Main Steam Pressure in Coal-fired Power Plant Boiler^*

史元浩, 王景成, 章云锋

Department of Automation, Shanghai Jiao Tong University, and Key Laboratory of System Control and Information Processing, Ministry of Education, Shanghai 200240, China

通讯作者: WANG Jingcheng,E-mail:jcwang@sjtu.edu.cn
基金资助:
Supported by the National Natural Science Foundation of China (61174059;60934007;61233004);the National Basic Research Program of China (2013CB035406);Shanghai Rising-Star Tracking Program (11QH1401300)

Abstract

Abstract: Since the combustion system of coal-fired boiler in thermal power plant is characterized as time varying,strongly coupled,and nonlinear,it is hard to achieve a satisfactory performance by the conventional proportional integral derivative (PID) control scheme.For the characteristics of the main steam pressure in coal-fired power plant boiler,the sliding mode control system with Smith predictive structure is proposed to look for performance and robustness improvement.First,internal model control (IMC) and Smith predictor (SP) is used to deal with the time delay,and sliding mode controller (SMCr) is designed to overcome the model mismatch.Simulation results show the effectiveness of the proposed controller compared with conventional ones.

Key words: coal fired power plant boiler, combustion system, main steam pressure, sliding mode control, Smith predictor, internal model control

摘要： Since the combustion system of coal-fired boiler in thermal power plant is characterized as time varying,strongly coupled,and nonlinear,it is hard to achieve a satisfactory performance by the conventional proportional integral derivative (PID) control scheme.For the characteristics of the main steam pressure in coal-fired power plant boiler,the sliding mode control system with Smith predictive structure is proposed to look for performance and robustness improvement.First,internal model control (IMC) and Smith predictor (SP) is used to deal with the time delay,and sliding mode controller (SMCr) is designed to overcome the model mismatch.Simulation results show the effectiveness of the proposed controller compared with conventional ones.

关键词: coal fired power plant boiler, combustion system, main steam pressure, sliding mode control, Smith predictor, internal model control

SHI Yuanhao, WANG Jingcheng, ZHANG Yunfeng. Sliding Mode Predictive Control of Main Steam Pressure in Coal-fired Power Plant Boiler^*[J]. Chin.J.Chem.Eng., 2012, 20(6): 1107-1112.

史元浩, 王景成, 章云锋. Sliding Mode Predictive Control of Main Steam Pressure in Coal-fired Power Plant Boiler^*[J]. Chinese Journal of Chemical Engineering, 2012, 20(6): 1107-1112.

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Sliding Mode Predictive Control of Main Steam Pressure in Coal-fired Power Plant Boiler^*

Sliding Mode Predictive Control of Main Steam Pressure in Coal-fired Power Plant Boiler^*

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