改进自适应遗传算法下余热锅炉过热蒸汽温度控制方法  

Improved Adaptive Genetic Algorithm for Superheated Steam Temperature Control of Waste Heat Boiler

作　　者：袁俊球 王迪 邓中诚 张茜颖 YUAN Junqiu;WANG Di;DENG Zhongcheng;ZHANG Qianying(Changzhou Jintanjinneng Power Co.Ltd.,Changzhou 213200,China)

机构地区：[1]常州金坛金能电力有限公司,江苏常州213200

出　　处：《工业加热》2024年第10期35-38,共4页Industrial Heating

摘　　要：余热锅炉过热蒸汽温度常受到多种干扰和不确定因素的影响,导致温度波动较大,难以实现稳定控制。为此,提出改进自适应遗传算法下余热锅炉过热蒸汽温度控制方法。利用过热蒸汽温度、锅炉负荷参数定义余热锅炉过热蒸汽温度控制方程,引入改进自适应遗传算法,通过自适应调整交叉和变异概率提升遗传算法的收敛速度,获取最优适应度函数,代入余热锅炉过热蒸汽温度控制方程中,实现蒸汽温度最优控制。通过对比实验验证得出,该方法的收敛性能好,对余热锅炉过热蒸汽温度控制的超调量为2.6℃,响应速度为1.8 s,证明该方法对余热锅炉过热蒸汽温度控制的稳定性及精度较好。The temperature of superheated steam in waste heat boilers is often affected by various disturbances and uncertain factors,resulting in significant temperature fluctuations and difficulty in achieving stable control.Therefore,an improved adaptive genetic algorithm based su-perheated steam temperature control method for waste heat boilers is proposed.Using the superheated steam temperature and boiler load pa-rameters to define the control equation for the superheated steam temperature of the waste heat boiler,an improved adaptive genetic algorithm is introduced.By adaptively adjusting the crossover and mutation probabilities,the convergence speed of the genetic algorithm is improved,and the optimal fitness function is obtained.It is substituted into the control equation for the superheated steam temperature of the waste heat boiler to achieve the optimal control of the steam temperature.Through comparative experimental verification,it was found that the conver-gence peformance of this method is good.The overshoot for contrlling the superheated steam temperature of the waste heat boiler is 2.6 C,and the response speed is 1.8 seconds.This proves that the method has good stability and accuracy for controlling the superheated steam tem-perature of the waste heat boiler.

关 键 词：改进自适应遗传算法 余热锅炉 自适应交叉 过热蒸汽 温度控制 变异概率 

分 类 号：TM621[电气工程—电力系统及自动化]