A Study On The Control System Of Parallel Coursing Boilers' Main-Pipeline Pressure Based On Multiple-Agent System

In main-pipeline power plant, main-piping pressure is primary controlled object. Considering safety, it must be controlled in a fixed range. However, because main-piping pressure has the characteristic of great delay, the common control system of main-pipeline pressure can't accomplish the control task perfectly. Agent is a new technique of Distributed Artificial Intelligence. Distributed Hierarchical Architecture of Multiple-Agent Intelligent Control System (ABICS) is one of developing directions of solving the problem about complex control system, which is distributed in geography and is dispersive in control function. This paper tries to design a new control system of parallel coursing boilers' main-pipeline pressure with the theory of Agent. Furthermore, Load optimizing distribution of main-pipeline unit is one of problems in the running of main-pipeline power plant. Load optimizing distribution of main-pipeline unit involves two energy, heat and electricity. Moreover, there is very great difference between boilers and turbines' dynamic characteristics of main-pipeline unit. Therefore, we must use different projects of load optimizing distributing between boilers and turbines. Artificial Immune Arithmetic simulates the principle of biological immune system, it is a self-adapted and global optimization method with random searching. This paper tries to distribute main-pipeline unit's load with Immune Arithmetic. The main contents of the paper are as follows:Study on dynamic mathematic model of parallel coursing boilers.Building dynamic mathematic model of paratactic running boilers by analyzing mechanism is the base of farther research. During building model, models of furnace, drum and super-heater are the same to power unit's ones. The main different is the model of main-pipeline. This paper deals with main-pipeline as a object, which is not only concentrated but also distributed. When getting transfer functions of models, we'll simulate them by Simulink.Building the structure of ABICSThis paper introduces the theory of Agent in detail, including Agent's conception, structure and model. Besides, it describes all characteristics of Agent newly from the view of Control Theory. It discusses the performance of ABICS with a simulating example in detail. ABICS is one of bases of the control system of parallel coursing boilers' main-pipeline pressure based on MAS, which is proposed in this paper. Designing the control system of parallel coursing boilers' main-pipeline pressure based on MAS.One of main contents of this paper is designing the control system of main-pipeline pressure based on MAS. This paper brings out a improved control system of main-pipeline pressure firstly. Then this paper designs a new control system of main-pipeline pressure based on it and the theory of multiple-Agent. It includes the design of main architecture of the control system, functions, architectures and running rules of Agents in the system. Besides, the control system is simulated to test all performances.Solving the problem of load optimizing distribution of main-pipeline unit with Immune Arithmetic.The other main content of this paper is getting the best project of load optimizing distribution of main-pipeline unit. This paper distributes main-pipeline unit's load with Immune Arithmetic. Comparing to other projects of distributing load, IA has more advantages.Building a simulated plane of industrial control system based on Matlab, Excel, InTouch.This paper builds a simulated plane based on Matlab, Excel and InTouch, on which Matlab combines industrial control software to simulate actual object's running status. Besides, This paper simulates the dynamic mathematic model of parallel coursing boilers on the plane.