本文選題：協(xié)調(diào)控制系統(tǒng)　切入點：線性矩陣不等式(LMIs)　出處：《華北電力大學(xué)》2017年碩士論文

【摘要】：協(xié)調(diào)控制系統(tǒng)是電站燃煤機組中非常重要的組成部分,是火電廠能夠安全、有效、自動化運行的有力保障,對燃煤機組的運行品質(zhì)有著重要的影響。隨著火電行業(yè)不斷的發(fā)展前進,500MW和1000MW的大型單元機組已經(jīng)成為電力系統(tǒng)的主力機組。同時,根據(jù)電網(wǎng)的負(fù)荷需求指令和電網(wǎng)的頻率偏差要求,電廠不僅需要保障機組本身的安全穩(wěn)定的運行,還要參加電網(wǎng)調(diào)峰、調(diào)頻,而這些要求的基礎(chǔ)是協(xié)調(diào)控制系統(tǒng)具有優(yōu)秀的控制能力。這些來自外界連續(xù)不斷的壓力,迫使電廠對協(xié)調(diào)控制系統(tǒng)的性能要求越來越高。本文基于H_∞控制方法和H_2控制方法,設(shè)計了基于線性矩陣不等式(LMIs)的電站燃煤機組協(xié)調(diào)控制系統(tǒng)。H_∞控制和H_2控制都屬于魯棒控制,能處理具有多變量、強耦合、大遲延、非線性、不確定干擾的系統(tǒng)控制問題。本文根據(jù)H_∞控制和H_2控制的算法推導(dǎo)出H_∞控制和H_2控制控制律,進一步設(shè)計了基于LMIs狀態(tài)反饋H_∞控制器和基于LMIs的狀態(tài)反饋H_2控制器,然后以500MW燃煤機組協(xié)調(diào)控制系統(tǒng)為被控對象,在100%、95%和50%三個工況下進行了仿真研究,最后進行對給定值的跟蹤測試和抗干擾性能仿真測試。最終的仿真結(jié)果表明,基于LMIs狀態(tài)反饋H_∞控制器和基于LMIs的狀態(tài)反饋H_2控制器都具有良好的控制品質(zhì)。
[Abstract]:The coordinated control system is a very important part of coal-fired units in power plants, and it is a powerful guarantee for the safe, effective and automatic operation of thermal power plants. With the continuous development of the thermal power industry, the large units of 500MW and 1000MW have become the main units in the power system. According to the demand instructions of the power grid and the frequency deviation requirements of the power network, the power plant not only needs to ensure the safe and stable operation of the unit itself, but also to participate in the peak shaving and frequency modulation of the power network. These requirements are based on the excellent control capability of the coordinated control system. The continuous pressure from outside forces the power plant to demand higher and higher performance of the coordinated control system. This paper is based on the Hinfinity control method and HAP2 control method. The coordinated control system. H _ 鈭，

本文編號：1674750