火电供煤智能输配系统的研究与应用

Research and Application of Intelligent Coal Transportation and Blending System for Thermal Power Plant

针对火电厂现场煤粉输配需求,设计一种煤粉输配智能监控系统。系统按功能分为iFIX组态子系统、控制优化子系统、视频监控子系统和后台数据库管理子系统。分析配煤自动化的可编程逻辑控制、iFIX组态和优化控制过程,建立基于模糊决策的故障诊断和遗传算法的配煤和调度优化,采用VC++实现控制优化子系统功能以及各子系统间的通信。应用结果表明,该系统可实现煤粉输送控制自动化和优化混配智能化。

According to the operation requirement of coal transportation and blending in thermal power plant,an intelligence monitoring system of thermal power plant is proposed and whose architecture is designed four parts： iFIX subsystem,optimization control subsystem,video surveillance subsystem and database management subsystem.The procedure and function of three important processes,namely,Programmable Logic Controller（PLC） control,iFIX configuration and optimal control,are discussed in detailed.A set of fault diagnose strategy for equipment based on fuzzy decision-making and an operation schedule for coal blending based on Genetic Algorithm are established.Using Visual C＋＋ programming language,the optimization control subsystem and communication module are realized.Practical application indicates that automatic transportation and intelligence blending can be achieved by the system and its design is reasonable,reliable and available.