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

燃煤电站锅炉主蒸汽压力滑模预测控制(英文)

作　　者：史元浩 王景成 章云锋 

机构地区：[1]Department of Automation,Shanghai Jiao Tong University,and Key Laboratory of System Control and Information Processing,Ministry of Education

出　　处：《Chinese Journal of Chemical Engineering》2012年第6期1107-1112,共6页中国化学工程学报（英文版）

基　　金：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)

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.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 

分 类 号：TK223.7[动力工程及工程热物理—动力机械及工程]