9907-167 505E 9907-165 9907-164 9907-166汽轮机控制器

505E控制器设计用于操作所有尺寸和应用的单提取和/或入场汽轮机。该汽轮机控制器包括专门设计的算法和逻辑启动，停止，控制和保护单个提取和/或入场汽轮机或涡轮膨胀器，驱动发电机，压缩机，泵，或工业风扇。505E控制独特的PID结构使其非常适合需要控制蒸汽厂参数的应用，如涡轮机速度，涡轮机负载，涡轮机进口压力，排气集箱压力，提取或进入集箱压力，或线路功率。

该控制的特殊pid到pid逻辑允许在正常涡轮机运行期间进行稳定控制，并在工厂扰动期间进行无颠簸控制模式转换，最大限度地减少过程过冲或欠冲情况。505E控制器通过被动或主动速度探头感知汽轮机速度，并通过连接到汽轮机蒸汽阀的HP和LP执行器控制汽轮机。

505E控制器通过4-20 mA换能器感知提取和/或进入压力，并通过比率/限制器功能使用PID来精确控制提取和/或进入头部压力，同时保护涡轮机在其设计的操作包线之外运行。控制器使用特定涡轮机的OEM蒸汽图来计算其阀对阀解耦算法以及涡轮机运行和保护限制。

505E控制封装在工业硬化外壳中，设计用于安装在位于工厂控制室或涡轮机旁边的系统控制面板内。控制器的前面板既可作为编程站，又可作为操作员控制面板(OCP)。这种用户友好的前面板允许工程师访问和编程机组的具体工厂的要求，工厂操作员很容易启动/停止涡轮机和启用/禁用任何控制模式。密码安全用于保护所有单元程序模式设置。该机组的两行显示允许操作员从同一屏幕查看实际值和设定值，简化了涡轮机的操作。

涡轮接口输入和输出接线接入位于控制器的下背面板上。不可插拔的端子块允许容易的系统安装，故障排除和更换。

9907-167

The 505E controller is designed to operate single-extraction and/or admission steam turbines of all sizes and applications. This steam turbine controller includes specifically designed algorithms and logic to start, stop, control, and protect single extraction and/or admission steam turbines or turbo expanders, driving generators, compressors, pumps, or industrial fans. The 505E control’s unique PID structure makes it ideal for applications where it is required to control steam plant parameters like turbine speed, turbine load, turbine inlet pressure, exhaust header pressure, extraction or admission header pressure, or tie line power.

The control’s special PID-to-PID logic allows stable control during normal turbine operation and bumpless control mode transfers during plant upsets, minimizing process over- or undershoot conditions. The 505E controller senses turbine speed via passive or active speed probes and controls the steam turbine through HP and LP actuators connected to the turbine steam valves.

The 505E controller senses extraction and or admission pressure via a 4–20 mA transducer and uses a PID through a ratio/limiter function to accurately control extraction and/or admission header pressure, while protecting the turbine from operating outside of its designed operating envelope. The controller uses the specific turbine’s OEM steam map to calculate its valve-to-valve decoupling algorithms and the turbine operating and protection limits.

The 505E control is packaged in an industrial hardened enclosure designed to be mounted within a system control panel located in a plant control room or next to the turbine. The control’s front panel serves as both a programming station and operator control panel (OCP). This user-friendly front panel allows engineers to access and program the unit to the specific plant’s requirements, and plant operators to easily start/stop the turbine and enable/disable any control mode. Password security is used to protect all unit program mode settings. The unit’s two-line display allows operators to view actual and setpoint values from the same screen, simplifying turbine operation.

Turbine interface input and output wiring access is located on the controller’s lower back panel. Unpluggable terminal blocks allow for easy system installation, troubleshooting, and replacement.