冷凝式燃气热水器水温变参数PID控制方法  

Control Method of Variable Parameter PID for Water Temperature in Condensing Gas Water Heater

作　　者：刘永芳[1] 冯良[1] 鲁泓[1] 阿迪拉.木依都力 黄博洲[1] 

机构地区：[1]同济大学机械与能源工程学院暖通空调及燃气研究所,上海201804

出　　处：《煤气与热力》2013年第10期13-16,25,共5页Gas & Heat

摘　　要：以阶跃响应实验得到的各水流量下冷凝式燃气热水器的水温控制传递函数模型为基础,提出了基于水流量的变参数PID控制算法。对不同水流量下水温控制系统的PID参数进行Matlab仿真优化整定和实验整定。在测试平台上对整定后的PID参数进行测试,在水流量扰动情况下,可以实现较好的温度控制,达到了燃气热水器水温控制系统的性能要求。Based on the transfer function model for water temperature in condensing gas water heater under different water flow rates, which is obtained by the step response experiment, the variable parameter PID control algorithm based on water flow rate is pro- posed. The Matlab optimized setting and experimental setting of PID parameter for water temperature control system under different water flow rates are performed. The set PID parameter is tested on the test platform. Excellent temperature control can be obtained under disturbance of water flow, which meets the performance requirements of water temperature control system of gas water heater.

关 键 词：阶跃响应 冷凝式燃气热水器 变参数PID 水温控制 

分 类 号：TU996[建筑科学—供热、供燃气、通风及空调工程]