多级离心压缩机防喘模型与防喘控制策略-控制与决策.PDF

第28 卷 第3 期 控 制 与 决 策 2013 年 3 月 Vol. 28 No. 3 Control and Decision Mar. 2013 文章编号: 1001-0920 (2013) 03-0439-06 多级离心压缩机防喘模型与防喘控制策略 褚 菲, 王福利, 王小刚, 董世建 ( 东北大学a. 信息科学与工程学院，b. 流程工业综合自动化国家重点实验室，沈阳110819) 摘 要: 以燃气-蒸汽联合循环发电机组煤气系统为背景, 基于压缩机能量损失机理建立多级离心压缩机系统防喘控 制模型, 并利用改进自适应遗传算法辨识机理模型中难以准确获得的参数. 基于此模型, 制定相应的防喘控制线确 定方法和防喘控制策略. 将所建立的防喘模型和防喘控制策略应用于实际的煤气系统中, 结果表明该防喘模型能准 确预测多级离心压缩机的性能, 所制定的防喘控制策略能有效防止喘振的发生, 取得了满意的控制效果. 关键词: 离心压缩机；改进自适应遗传算法；机理模型；防喘控制；联合循环发电机组 中图分类号: TH27 文献标志码: A Multi-stage centrifugal compressor model and anti-surge control strategy CHU Fei, WANG Fu-li, WANG Xiao-gang, DONG Shi-jian (a. College of Information Science and Engineering，b. State Key Laboratory of Integrated Automation for Process Industries ，Northeastern University ，Shenyang 110819，China ．Correspondent ：CHU Fei，E-mail ：chufeizhufei@ ) Abstract: Based on the background of gas-steam combined cycle power plant gas system of a steelworks, a mechanism model suitable for the anti-surge control design of compression system is established based on the loss mechanism of compressor. The improved adaptive genetic algorithm is applied to determine the important parameters of the model. Based on the developed model, the corresponding anti-surge control strategy is proposed. Applying the mechanism model and anti- surge control strategy to the practical gas system, the results show that the model has satisfactory prediction performance and the control strategy proposed can provide effective control in inhibiting the occurrence of compressor surge, and achieve good control effect. Key words: centrifugal compressor ；improved