外文翻译----燃气锅炉控制系统

外文翻译----燃气锅炉控制系统内容摘要：

alarm, PLC issued interlock control signals, forced the dark Feng Motors, with winds of Electrical and grate the electrical shutdown, emergency boiler Boilers off Load, to ensure production safety. System hardware According to characteristics of the boiler and distribution, select PLC IPC and IPCPLCbased ponents of the three DCS control system, the position of the entire control system plans. With three Siemens S7300 series PLC control were three boilers, installed in the control room. PLC with Siemens Step7 software to the hardware configuration, all of the PID control, interlocking protection, volume control switch in the PLC are to achieve. PLC via Ether and three top industrial puter connected to the data collected at the top IPC transmission and reception of the top industrial puter data and control mands. The top four for IPC, also installed in the control room. Three of them as a parallel operation of the operator station, another station as an engineer. Upper IPC use the Siemens WinCC humanputer interface software for the establishment, and through humanputer interface for the next crew of all the parameters for remote settings and adjustments, monitor the operation of all equipment. WinCC script with the overall realization of fuzzy control algorithms, boiler efficiency of coalline realtime calculation and wind than selfoptimizing algorithm. Another choice of a distributed I / O modules ET200M from the station as the DP, through PROFIBUSDP fieldbus connected with the PLC, the three boilers used to control the sharing of ancillary equipment, such as: water treatment equipment, water supplement equipment, and constant Water pressure control. In addition to energy conservation, all the fans, pumps and motors are used Frequency Control, Drives Fujitsu General optional converter. System Software Design As more functional systems, high reliability requirements, software Design and the difficulty of the workload has bee very large. The mining system software Modular design approach used, the whole mission is divided into several subtasks, each Module and its functions are as follows: (1) to initialize module. The use of all the intermediate relay M, set When TD registers and data processing to initialize. The need for some To the initial parameter assignment. (2) TD200 humanputer interface module. The module is primarily concerned with humanputer Intelligence shows that the interface logic and configuration information on the use of TD200. (3) by tube, by judgement of the module. Determine when changes in the electric and Related logic. (4) electric input and exit of logic modules. According to in。