有机朗肯循环中蒸发器的建模与控制  

The Modeling and Control of Evaporator in Organic Rankine Cycle System

作　　者：楼赣菲[1] 樊楼英[1] 沈伟华[1] LOU Ganfei;FAN Louying;SHEN Weihua(Faculty of Engineering,Lishui University,Lishui 323000,Zhejian)

机构地区：[1]丽水学院工学院,浙江丽水323000

出　　处：《丽水学院学报》2018年第5期69-75,共7页Journal of Lishui University

基　　金：浙江省高等教育教学改革项目"学为导向教学模式构建的研究与实践--以‘电力拖动自动控制系统’课程为例"(jg20160188);浙江省课堂教学改革项目"基于MATLAB的‘信号与系统’课堂教学模式改革的研究与实践"(kg2015440)

摘　　要：有机朗肯循环是目前工业余热回收的一种常用技术手段,其中蒸发器是该循环的主要组成部分。由于不稳定的工业余热会导致蒸发器的操作条件偏离设定值,甚至违反安全约束,所以很有必要对蒸发器的操作条件进行控制,使之满足安全约束的要求。基于移动边界原理对蒸发器进行了机理建模,并在基本PI控制的基础上分别结合静态前馈和动态前馈对蒸发器的控制进行了仿真研究,结果表明采用动态前馈辅助的PI控制器抗干扰能力最好。Organic Rankine cycle is currently a common industrial waste heat recovery technology and the evaporator is the most important component of the cycle. Since the operating conditions of the evaporator might deviate from the set values due to the unstable industrial waste heat and might even violate the safety constraints, it is necessary to control the operating conditions of the evaporator to meet the requirements of safety constraints. The mechanism of the evaporator was modeled based on the principle of moving boundary and the simulation study was conducted on the basis of PI control integrated with the static and dynamic feedforward. The results show that the dynamic feedforward PI control has best anti-interference ability.

关 键 词：有机朗肯循环 蒸发器建模 前馈控制 

分 类 号：TK115[动力工程及工程热物理—热能工程]