回热循环微型燃气轮机全工况状态反馈控制  

Total Operating Mode State Feedback Control of the Recuperative Cycle Microturbine

作　　者：段建东[1] 吴凤江[1] 赵克[1] 孙力[1] 

机构地区：[1]哈尔滨工业大学电气工程学院,哈尔滨150001

出　　处：《电工技术学报》2014年第3期213-221,共9页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(51107018);高等学校博士学科点专项科研基金(20102302120013);中央高校基本科研业务费专项资金(HIT.NSRIF.2010103)资助项目

摘　　要：传统的微型燃气轮机控制系统采用基于设计工况简化线性模型的转速闭环PI控制策略,回热器的加入导致传统转速闭环控制方案的动态响应变慢且有振荡。该文在推导考虑回热器的微型燃气轮机非线性模型的基础上,提出了全工况状态反馈转速闭环控制策略。利用线性化状态空间方程设计全工况固定收敛特性状态观测器和状态反馈控制律,使观测变量和状态变量的收敛特性不受变工况影响,保证全工况运行的稳定性和动态特性的一致性,给出了普遍性观测器和状态反馈控制律随负载变化的解析多项式公式。通过对设计实例的分析和仿真表明所提出的控制策略的正确性和可行性。Based on the simplified linear model of design condition the traditional microturbine control system adopted the PI control strategy, and added recuperator leeds to slow speed dynamic response and oscillation. This paper proposes total operating mode state feedback control strategy based on the derived nonlinear model of the recuperative cycle microturbine. The fixed convergence characteristic state observer and the state feedback control law were designed using linear state space model, which made the convergence characteristics of observation variables and state variables were not influenced by varying conditions. It guaranteed the operation stability and the consistency of dynamic characteristics under total operating mode. This paper gives generally analytical polynomial equations of observer and state feedback control law with load variation. The design example analysis and simulation results prove that the proposed control strategy is correct and feasible.

关 键 词：回热循环微型燃气轮机 全工况运行 状态反馈控制 状态观测器 固定收敛特性 

分 类 号：TK47[动力工程及工程热物理—动力机械及工程]