Failure analysis on abnormal blockage of electro-hydraulic servo valve in digital electric hydraulic control system of 125 MW thermal power plant

2021 ◽  
Vol 123 ◽  
pp. 105294
Author(s):  
Sheng-Hui Wang ◽  
Tong-Wei Ni ◽  
Zhen-Guo Yang
Keyword(s):  
Control System ◽  
Power Plant ◽  
Failure Analysis ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Hydraulic Control ◽  
Servo Valve ◽  
Hydraulic Servo ◽  
Hydraulic Control System

Failure Analysis of PRDS Pipe in a Thermal Power Plant Boiler

2016 ◽  
Vol 99 (2) ◽  
pp. 233-238 ◽  
Author(s):  
Debashis Ghosh ◽  
Subrata Ray ◽  
Jiten Mandal ◽  
Nilrudra Mandal ◽  
Awdhesh Kumar Shukla
Keyword(s):  
Power Plant ◽  
Failure Analysis ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Power Plant Boiler ◽  
Plant Boiler

A Hydraulic Control System Design for Change-Wheel Garage of Light Rail Based on PLC

2012 ◽  
Vol 233 ◽  
pp. 76-79
Author(s):  
Yong Gang Yang ◽  
Jun Sun ◽  
Meng Tao Yang
Keyword(s):  
Control System ◽  
System Design ◽  
Servo Control ◽  
Light Rail ◽  
Control System Design ◽  
Hydraulic Control ◽  
Plc Control ◽  
Servo Control System ◽  
Hydraulic Servo ◽  
Hydraulic Control System

This paper introduces the hydraulic control system design for the change-wheel garage of Chongqing light rails through analysis of three-stage cylinder synchronization circuit for lifting bodies, and optimizing the design of the slewing mechanism with respect to the hydraulic servo control system of digital cylinder. The results improved the smoothness in the process of changing wheel lifting and the rotary accuracy of the rotary mechanism. Design on the PLC control system of the system is also included as part of this paper.

Automatic Regulating System Model of Thermal Power Plant Based on Single Loop Feedback Control

2014 ◽  
Vol 543-547 ◽  
pp. 580-584
Author(s):  
Gui Qiu Su ◽  
Chao Zhang
Keyword(s):  
Control System ◽  
Power Plant ◽  
Automatic Control ◽  
Production Process ◽  
Automatic Control System ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
System Model ◽  
Single Loop ◽  
Loop Feedback

The production process of the thermal power plant is transferring primary energy to secondary energy. Loss of energy is quite large for coal machine. When using air supply machine and other boiler auxiliary equipments, saving energy, reducing energy consumption is an important way to reduce the cost. This paper first analyzes the basic principle of energy transformations generation field and principle characteristics of thermal automatic control system during the production process. On the basis of energy saving and low cost framework, according to the single loop feedback construction, we establish automatic control system model of thermal power plant. Through comprehensive cloud generator we do simulation on thermal power enterprises, the result is significant. It shows that this model can provide scientific theoretical basis for the operation mode of power generation enterprises in a certain degree.

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