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1、资料内容仅供您学习参考，如有不当或者侵权，请联系改正或者删除。5电气控制系统5.1 GENERAL DESCRIPTION总体描述This chapter describes Solar Turbines Turbotronic? -based electricalcontrol system.本章描述索拉透平机组的电气控制系统。Control of operating parameters such as temperatures, pressures, flow, speed and vibration is critical to prevent damage to turbine en
2、gine and driven equipment. Startup and shutdown require controlled sequenced processes温.度、 压力、 流量、 速度及振动等操作参数的控制对防止透平发动机及驱动设备受到损伤是非常重要的。起动和关断要求可控的程序处理。A programmable logic controller (PLC), a computer adapted for control tasks, controls turbine engine package systems. (PLCs are often described as pr
3、ocessors, microprocessors, controllers, and combinations of these terms.) The PLC reads input device status such as control panel pushbuttons, makes decisions, and sets output devices such as indicators, positioners, or heating coils. Pressure and temperature sensors, speed and vibration pick-ups, a
4、nd other sensors transfer measured data to the PLC through analog input modules. Switch settings and other two-state inputs are sent, through discrete input modules, to the PLC. The PLC evaluates these inputs and sends commands, through output modules, to资料内容仅供您学习参考，如有不当或者侵权，请联系改正或者删除。control device
5、s such as positioners and solenoids. Communication modules accommodate data transmission between control system devices using dissimilar data formats, for example control datatransmitted to the PLC over the Ethernet or along data networks.可编程序控制器 ( PLC) 是适合工业控制的计算机。控制透平发动机装置系统 ( PLC 常描述为处理器、微处理器、控制器
6、和这些术语的组合) 。 PLC 读取控制盘按钮的收入设备的状态, 做出决定。设置诸如指示器、 定位器或者热脱扣等输出设备。压力和温度传感器、速度和振动选择器及其它传感器将测得的数据经过模拟输入模块传输给 PLC。开关及其它双状态输入信号经过离散输入模块传输给PLC。 PLC 评估这些输入信号, 经过离散输出模块, 发送命令控制诸如定位器和电磁阀等输出设备。 通讯模块提供控制系统与使用不同数据格式的设备之间的数据传输 , 例如 , 经过以太网或者数据网控制传输到 PLC 的数据。Figure 5.1.1 is a simplified block diagram of the primary c
7、ontrol system. 图 5.1.1 为主控制系统的简化块图。资料内容仅供您学习参考，如有不当或者侵权，请联系改正或者删除。Figure 5.1.1 Electrical Control System - Block Diagram图 5.1.1 电气控制系统块图Key for Figure 5.1.1图 5.1.1 的关键词1Display Computer2Turbine Control Panel显示计算机透平控制盘3Digital Display Terminal4I/O Chassis Assembly数字显示终端I/O 机架装置5 Flex I/O? Modules分布式
8、I/O 模块Control and support equipment are housed in junction boxes or other nonhazardous areas. Instrumentation and control devices are in and资料内容仅供您学习参考，如有不当或者侵权，请联系改正或者删除。around the turbomachinery package.控制与支撑设备安装在接线箱和其它非危险区域。仪表与控制设备安装在透平机组的内部和附近。This chapter includes sections:本章包括以下章节:? 5.2 - Func
9、tional Description 功能描述? 5.3 - Component Descriptions 组件描述? 5.4 Software 软件? 5.5 Maintenance 维护Drawings for use with this manual section include: 本手册包括的图表为 :? Electrical Schematic (149480) 电气简图? Turbotronic Software Documentation (a floppy disk) 透平软件文档( 一张磁盘 )? Wiring Diagram (149481) 接线图5.2 FUNCTIO
10、NAL DESCRIPTION功能描述This section overviews the electrical control systems functions. 本章节浏览一下电气控制系统的功能。5.2.1 Programmable Logic Controller(PLC)The programmable logic controller: 可编程逻辑控制器:资料内容仅供您学习参考，如有不当或者侵权，请联系改正或者删除。? Controls engine startup, operation, and shutdown 控制发动机的起动、 操作与关断? Monitors operati
11、ng conditions and operator request data 监视操作状况与操作员要求的数据? Uses stored software control programs 使用已存的软件控制系统? Sends commands to regulate发送命令已调节 :o Speed速度o Temperature 温度o Load 负载o Other conditions 其它工况PLC assembly includes:PLC 装置包括 :? Input/output (I/O) chassis 输入 /输出 ( I/O) 机架? Power supply modules
12、电源模块? Processor module equipped to handle ControlNet communication with Flex I/O 负责与分布式 I/O 通讯的 CONTROLNET 控制模块? Communications modules 通讯模块? Distributed Flex I/O modules 分布式 I/O 模块PLC receives input from:PLC 接收信号来自于:资料内容仅供您学习参考，如有不当或者侵权，请联系改正或者删除。? Turbine control panel, through input modules 经过输入模
13、块 , 透平控制盘? Operator terminal, through communication modules 经过通讯模块, 操作员终端? Process measurement instrumentation, through input modules 经过输入模块 , 过程测量仪表PLC:? Gets data from communications buses and memory 从通讯总线及存储器获取数据? Executes operation instructions (calculations, logic operations, etc.)执行操作指令 ( 计算 ,
14、 逻辑操作等 )? Sends commands and display information to communication buses发送命令和显示信息给通讯总线Input modules: 输入模块? Receive two-state, ON or OFF, discrete data 接收双状态离散数据 ON 或者 OFFo Typically from a switch 典型为开关o ON (closed, true, yes, or 1) indicated by +24 Vdc signal 由 24V 直流信号表示的 ON( 闭合、 真值、 是或者 1)资料内容仅供您学习
15、参考，如有不当或者侵权，请联系改正或者删除。o OFF (open, false, no, or 0) indicated by 0 Vdc signal 由 0V直流信号表示的OFF( 断开、假值、否或者 0)? Receive continuous-state variable analog data接收连续状态变量模拟数据o From thermocouples, pressure/temperature transmitters, magnetic speed pickups, proportional position transducers从热电偶、 压力 /温度变送器、 磁速度接
16、收器、 比例位置传感器。? Convert data to digital form 转换数据为数字形式o Discrete - binary logic values (1 or 0)离散二进制逻辑值 ( 1 或者 0)o Analog - 12-bit integers 模拟 12 位整数值? Send data to processor through发送数据到处理器经过o Flex I/O adapter and ControlNet 分布式 I/O 适配器及CONTROLNETOutput modules:输出模块 :? Receive digital data from PLC through ControlNet and Flex I/O adapter经过 CONTROLNET 及分布式 I/O, 从 PLC 接收数字数据? Convert digital data to 转换数字数据到