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1、5电气控制系统5.1 GENERAL DESCRIPTION 总体描述This chapter describes Solar Turbines Turbotronic-based electrical control 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 engine and driven equipment. Star
2、tup 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 processors, microprocessors, control
3、lers, 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, and other sensors transfer measured
4、 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 control devices such as positioners and solenoids. Communication modules accom
5、modate data transmission between control system devices using dissimilar data formats, for example control data transmitted 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
6、和振动选择器及其他传感器将测得的数据通过模拟输入模块传输给 PLC。开关及其他双状态输入信号通过离散输入模块传输给 PLC。PLC 评估这些输入信号，通过离散输出模块，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，通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 control system.图 5.1.1为主控制系统的简化块图。Figure 5.1.1 Electrical Control System - Block
7、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1 Display Computer显示计算机2 Turbine Control Panel透平控制盘3 Digital Display Terminal数字显示终端4 I/O Chassis AssemblyI/O机架装置5 Flex I/O Modules分布式 I/O模块Control and support equipment are housed in junction boxes or other nonhazardous areas. Instrumentation an
8、d control devices are in and around the turbomachinery package.控制与支撑设备安装在接线箱和其他非危险区域。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 - Functional 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
9、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 FUNCTIONAL 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 l
10、ogic controller:可编程逻辑控制器： Controls engine startup, operation, and shutdown控制发动机的起动、操作与关断 Monitors operating 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其他工况PLC
11、 assembly includes:PLC装置包括： Input/output (I/O) chassis输入/输出（I/O）机架 Power supply modules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： Turbi
12、ne control panel, through input modules通过输入模块，透平控制盘 Operator terminal, through communication modules通过通讯模块，操作员终端 Process measurement instrumentation, through input modules通过输入模块，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, logi
13、c operations, etc.)执行操作指令（计算，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、
14、是或者 1）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、磁速度接收器、比例位置传感器。 Convert da
15、ta 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发送数据到处理器通过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 ada
16、pter通过 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o Discrete data - for solenoid valves, indicator lights, and interposing relays for motor contacts and space heaters离散数据供电磁阀、指示灯、控制马达触点的中间继电器及空间加热器使用。o Analog data - for actuators and servos to control the engine bleed valve, inlet guide vanes, fuel control and other valves, oil cooler motors, etc模拟数据供控制发动机泄放阀的执行器及伺服器、入口导叶、燃料控制及其他阀类、油加热器等使用 Send data to发送数据到o Turbine co
