PCD231B/PCD231B101 3BHE025541R0101励磁控制模块 用于电磁励磁设备的控制

基本细节:PCD231B/PCD231B101 3BHE025541R0101 励磁控制模块 用于电磁励磁设备的控制

PCD231B/PCD231B101 3BHE025541R0101是一种励磁控制模块，专门设计用于电磁励磁设备的控制，以确保发电机的励磁电流和电压维持在合适的水平。它通常具有多个控制通道，可用于同时监测和控制多台电力发电机。PCD231B101模块支持通讯接口，以便与其他设备、控制系统或监测系统进行数据交换和通信。此外，该模块还具有电流和电压监测功能，并可以调节发电机的励磁电流和电压，以满足电力系统的需求。同时，它还具有保护和安全性功能，以及报警和诊断功能。

励磁装置主回路部分
主回路的组成和功能
装置主回路完成整流和灭磁两大功能，系统采用三相全控桥可控砗整流电路，向同步电动机转子绕组提供直流励磁电流。灭磁回路由可控硅7.8KGZ与二极管GZ反并联组成，实际上组成为一个大功率电子开关，完成同步电动机在异步起动讨程中串入起动电阻，起动结束后自动切除，保证同步电动机在异步起动期间，转子励磁绕组既不开路也不短路，从而避免励磁绕组承受过电压和过电流。

励磁装置控制部分:
系统控制部分包括S7200PLC、Pro-face触摸屏、KGLF-2型微机励磁控制器三部分组成。PLC主要完成继电回路逻辑控制工作方式切换、运行时P调节以及对外通讯等工作，Pro-face触摸屏主要完成系统参数设置和运行时故障、工作时间、设定运行参数信息查询，Pro-face触模屏具有励磁电流和励磁电压录波曲线信息查看。
KGLF-2型励磁控制器里由主机MC87C51和副机AT89C51单片机组成。励磁控制器主要完成频率测量及投励、脉冲形成、故障检测及处理.1转子感应电压频率的测量

PCD231B/

The PCD231B/PCD231B101 3BHE025541R0101 is an excitation control module specifically designed for the control of electromagnetic excitation equipment to ensure that the excitation current and voltage of a generator are maintained at a suitable level. It usually has multiple control channels and can be used to monitor and control multiple power generators at the same time. The PCD231B101 module supports communication interfaces for data exchange and communication with other devices, control systems or monitoring systems. In addition, the module also has current and voltage monitoring functions, and can adjust the excitation current and voltage of the generator to meet the needs of the power system. At the same time, it also has protection and security functions, as well as alarm and diagnostic functions.

Part of the main circuit of the excitation device
Composition and function of the main loop
The main circuit of the device completes the two functions of rectification and magnetic deactivation. The system uses a three-phase fully controlled bridge controlled rectifier circuit to supply DC exciting current to the rotor winding of the synchronous motor. The deactivation circuit is composed of thyristor 7.8KGZ and diode GZ in inverse parallel, in fact, it is composed of a high-power electronic switch to complete the synchronous motor in the asynchronous starting process into the starting resistance, and automatically cut off after the end of the start, to ensure that the synchronous motor in the asynchronous starting period, the rotor excitation winding neither open circuit nor short circuit. Therefore, the excitation winding can avoid overvoltage and overcurrent.

Excitation device control part:
The control part of the system consists of S7200PLC, Pro-face touch screen and KGLF-2 microcomputer excitation controller. The PLC mainly completes the switching of the working mode of the relay circuit logic control, the P adjustment during operation and the external communication, etc. The Pro-face touch screen mainly completes the system parameter setting and the query of the information of the fault during operation, the working time and the set operation parameters. The Pro-face touch screen can view the information of the excitation current and the excitation voltage recording curve.
KGLF-2 excitation controller is composed of MC87C51 and AT89C51 microcontroller. Excitation controller mainly completes frequency measurement and excitation, pulse formation, fault detection and processing.1 Rotor induced voltage frequency measurement

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