The Design And Study Of The Computer Supervision And Control System In Central Heating Power Station

The local central heating is become one of the necessary steps for city modernization in the north of China, it is more and more important that how to manage and control the heating network with scientific method as the heating network expands gradually.The Distributed Computer Supervision and Control System of Central Heating solves the problem of heating network management and control with better effects.This paper takes the central heating system of Heating company in ShiHeZi city as its research object. On the basis of basic heating theory, the computer applications technology, the central heating system was analyzed and studied. According to the characteristics of collect heating system, the computer control mechanism and method are developed. The heating adjustment means of different flux in several period is selected.The hardware realization and the software programming with AT89C51 chip microcomputer are givenThe central heating system is a complicated controlled object. It is difficult to apply general PID control to temperature of secondary water of the heating power station with the indeterminate nonlinear and changing parameter characteristics By self-adjusting three parameters K_p K_j K_d on line the Fuzzy -PID controller has better response rate and stability property than the general PID controller. The control algorithm is studied and simulated using MATLAB software. The result of simulation indicated that the control system has small exceeding value and good stability when use this control algorithm.