动力工程学报
動力工程學報
동력공정학보
JOURNAL OF POWER ENGINEERING
2009年
12期
1105-1109,1122
,共6页
电站锅炉%再热汽温%非线性不确定性%时滞系统%状态空间%鲁棒 H∞控制%LMI
電站鍋爐%再熱汽溫%非線性不確定性%時滯繫統%狀態空間%魯棒 H∞控製%LMI
전참과로%재열기온%비선성불학정성%시체계통%상태공간%로봉 H∞공제%LMI
power plant boiler%reheat steam temperature%nonlinear uncertainty%time-delay system%state space%robust H∞ control%LMI
为了提高电站锅炉再热汽温的控制品质,改善目前锅炉再热汽温控制的技术,讨论了基于非线性状态空间模型的锅炉再热汽温控制系统的鲁棒 H∞控制方法.通过建立锅炉再热汽温控制系统的非线性时滞不确定性状态空间模型,利用鲁棒 H∞控制方法,给出了其状态变量控制器的设计,结果由线性矩阵不等式(LMI)描述.控制器是否存在取决于LMI是否可解,所得控制器不需要调整额外的参数.通过仿真研究,验证了本方法的有效性.
為瞭提高電站鍋爐再熱汽溫的控製品質,改善目前鍋爐再熱汽溫控製的技術,討論瞭基于非線性狀態空間模型的鍋爐再熱汽溫控製繫統的魯棒 H∞控製方法.通過建立鍋爐再熱汽溫控製繫統的非線性時滯不確定性狀態空間模型,利用魯棒 H∞控製方法,給齣瞭其狀態變量控製器的設計,結果由線性矩陣不等式(LMI)描述.控製器是否存在取決于LMI是否可解,所得控製器不需要調整額外的參數.通過倣真研究,驗證瞭本方法的有效性.
위료제고전참과로재열기온적공제품질,개선목전과로재열기온공제적기술,토론료기우비선성상태공간모형적과로재열기온공제계통적로봉 H∞공제방법.통과건립과로재열기온공제계통적비선성시체불학정성상태공간모형,이용로봉 H∞공제방법,급출료기상태변량공제기적설계,결과유선성구진불등식(LMI)묘술.공제기시부존재취결우LMI시부가해,소득공제기불수요조정액외적삼수.통과방진연구,험증료본방법적유효성.
To advance the power plant boiler reheat steam temperature control quality and improve its control technology, robust H∞ technology for boiler reheat steam temperature control system, based on nonlinear state space model, was discussed. By modeling the system with nonlinear uncertainty time-delay state space model, using robust H∞ technology, a state variable controller was designed. The results were described by linear matrix inequalities (LMI). The existent possibility of controller having no use for tuning extra parameters is decided by whether the LMI is solvable. Simulation results show the validity of this method.
