IGCC气化炉控制方案的仿真研究  

Simulation Study of IGCC Gasifier Control Versions

作　　者：魏静[1] 刘晓玲[1] 张力[1] 吴科 

机构地区：[1]山东电力工程咨询院有限公司,山东济南250013 [2]南京国电南自美卓控制系统有限公司,江苏南京210003

出　　处：《热能动力工程》2012年第2期170-175,261-262,共6页Journal of Engineering for Thermal Energy and Power

摘　　要：针对ALSTOM气化炉的非线性、多变量动态特性,提出了两种基于常规PID控制器的气化炉多变量控制方案,这两种方案采用不同的操纵变量-被控变量配对并设计了相应的前反馈控制器。对两种控制方案进行了详细的多工况仿真测试,测试结果表明:方案一只要在适当放宽煤量改变速率限制的情况下,不仅可以满足ALSTOM气化炉的基准测试要求,而且各项控制指标均优于方案二;方案二能严格满足各项基准测试要求,但系统总的动态控制品质逊于方案一。与许多复杂控制算法(例如模型预测控制)不同,所研究的控制方案基于常规PID控制,便于工程实现,对工业应用具有更好的指导意义。In the light of such dynamic characteristics of Alstom gasifiers as non-linear and multi-variable,two multi-variable control versions based on conventional PID controllers were proposed,which adopted different manipulation variables-controlled variable pairing and for which a corresponding forward feed controller was designed.A simulation test of the versions was perfomed in detail under several operating conditions.The test results show that Version No.1:only under the condition that the coal quantity is properly widened and the limit of the coal feed rate is changed,not only the reference test requirements for Alstom gasifiers can be met but also various control indexes are superior to those of Version No.2.Version No.2:it can strictly meet various reference test requirements,however,the overall dynamic control quality of the system is inferior to that of Version No.1.Different from many complex control algorithms(for example,model prediction-based control),the control versions under discussion are based on conventional PID control,facilitating the accomplishment in engineering projects and offering better guide for industrial applications.

关 键 词：ALSTOM气化炉 非线性 多变量 PID控制器 分散控制 

分 类 号：TK323[动力工程及工程热物理—热能工程]