Research of relay protection automatic testing technology for smart substation

2016 ◽  
Author(s):  
Zhi Chen ◽  
Yongkang Zheng ◽  
Yong Liu
Keyword(s):  
Relay Protection ◽  
Automatic Testing ◽  
Testing Technology ◽  
Smart Substation

A Closed-Loop Test System for Network Performance of Smart Substation

2014 ◽  
Vol 1008-1009 ◽  
pp. 694-700
Author(s):  
Kai Ma ◽  
Shu Huang ◽  
Shan Qiang Feng
Keyword(s):  
Network Performance ◽  
Closed Loop ◽  
Performance Test ◽  
Test System ◽  
Frame Rate ◽  
Test Form ◽  
Network Testing ◽  
Transformer Substation ◽  
Testing Technology ◽  
Smart Substation

The key support technology of smart substation testing technology is analyzed, the concrete application of smart substation is combined with the traditional network testing, and the function of real-time network packet analysis is introduced, which has make the process of smart substation layer network test form a closed loop system, extend and improve the system of smart substation performance test. And links to the reality, to the transformer substation switchboard network storm suppression function, the time delay, lost projects and so on the frame rate to carry on the statistics, the contrast has confirmed this plan feasibility and the validity.

Discussion of Relay Protection Testing Technology for Intelligent Substation

2018 ◽  
Author(s):  
Kunlin Jiao ◽  
Yongkang Zheng ◽  
Yi Zhang ◽  
Yuqin Xu ◽  
Kunlin Jiao ◽  
...  
Keyword(s):  
Relay Protection ◽  
Testing Technology

Study on Simulation System of Relay Protection for Smart Substation

2013 ◽  
Vol 385-386 ◽  
pp. 1086-1089 ◽  
Author(s):  
Pan Zhang ◽  
Yan Xia Zhang ◽  
Wen Bo Xuan ◽  
Hong Yuan Zhang ◽  
Bin Bn Tian
Keyword(s):  
Dynamic Characteristics ◽  
Relay Protection ◽  
Simulation System ◽  
Sampled Data ◽  
Action Process ◽  
Fault Recording ◽  
Operating Equation ◽  
Smart Substation

A simulation system of dynamic characteristics of relay protection based on smart substation was exploit in this paper. The necessary information was extracted form SCD configurations file of smart substation and fault recording document, the different frequency of sampled data was transformed and unified, the action process of relay protection equipment is simulated with operating equation and action characteristics which is advance defined or self-defined, the process from normal to fault is reappeared by graphics in this system. The system, which was opening and expansibility, was suitable for reproducing dynamic characteristics of protection in smart substation, also was applicable to develop new principle protection equipment.

An Automatic Testing System Design for Accelerometer Based on LabVIEW

2013 ◽  
Vol 423-426 ◽  
pp. 2576-2580
Author(s):  
K.B Zhang ◽  
J.L Zhang ◽  
J.M Gao ◽  
Z.Z Wu
Keyword(s):  
System Design ◽  
High Accuracy ◽  
Test Method ◽  
Automatic Testing ◽  
Testing System ◽  
Temperature Characteristics ◽  
Test Efficiency ◽  
Temperature Experiment ◽  
Testing Technology ◽  
Automatic Testing System

By analyzing the test method named orthogonal 12 points for accelerometer, there are several problems to be solved in the temperature experiments for accelerometer. In order to study the temperature characteristics of the accelerometer for better, the testing system for accelerometer based on Labview is designed and the composition of the system is introduced. The microprocessor used in the temperature experiment is C8052F series microcontrollers. A 24-bit A/D converter is embedded in the microprocessor and the resolution of 0.149 microvolts can meet the accuracy requirements of the accelerometer. According to the requirements of high accuracy and test efficiency for accelerometer, the digital multi-channel testing technology is applied to realize the accurate test. The application in temperature experiments indicates that this precise and steady testing system can meet the requirement of accelerometer calibrating & testing completely.

scholarly journals Research on the Process Layer and Substation Layer Relay Protection in Smart Substation Relay Protection

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Kong Hai Bo
Keyword(s):  
Power Plant ◽  
Information Transmission ◽  
Relay Protection ◽  
Base Station ◽  
Backup Protection ◽  
Ping Pong ◽  
Variable Power ◽  
Disposable Equipment ◽  
Smart Substation ◽  
Plant Components

The intelligent substation relay protection facility is a fundamental element in construction of modern power system, based on the principles of flexibility, security and accuracy, and it can be divided into process layer and substation layer according to specific equipment. The former is suitable for individual sampling of disposable equipment, can be separated from the base station synchronization sampling, with the help of synchronous digital system and ping-pong algorithm to achieve synchronization of the overall sampling, that is to take the distribution protection components, through the separate transmission medium to realize the information transmission; the latter is for variable power plant components centralized backup protection, taking online real-time tuning technique.

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