scholarly journals Performance test of small-current grounding line selection device based on the real-time digital simulation system

2021 ◽  
Vol 2137 (1) ◽  
pp. 012010
Author(s):  
Biao Xu ◽  
Yuxin Xu ◽  
Fan Ouyang ◽  
Hui LI ◽  
Wenwu Liang ◽  
...  
Keyword(s):  
Real Time ◽  
Performance Test ◽  
Digital Simulation ◽  
Strong Support ◽  
Simulation System ◽  
Small Current ◽  
The Real ◽  
Test Platform ◽  
Grounding Line ◽  
Line Selection

Abstract Single phase grounding fault is the most common fault type in small-current grounding distribution network, but the small-current grounding line selection device put into operation on site is often difficult to meet the application requirements, affecting the rapid and accurate treatment of grounding fault. Considering that there are many small-current grounding line selection manufacturers and various device forms, it is difficult to intuitively evaluate the line selection performance of different devices and make horizontal comparison, and there is no supporting basis for the selection and application of on-site line selection devices. Therefore, based on the real-time digital simulation system (RTDS), this paper establishes a test platform for small-current grounding line selection device. Based on the constructed test platform, four line selection devices form different manufacturers are tested in parallel, the performance of the devices is compared, and the influencing factors affecting the accuracy of line selection results are analyzed. The conclusions of this paper can provide strong support for the pilot application of small-current line selection devices.

scholarly journals Design and Analysis on an Optimized Interface Algorithm for Real-Time Integrated Simulation System of Renewable Energy and the Power Grid

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4380
Author(s):  
Yanfeng Meng ◽  
Li Ji ◽  
Shuju Hu ◽  
Honghua Xu
Keyword(s):  
Renewable Energy ◽  
Real Time ◽  
Power Grid ◽  
Digital Simulation ◽  
Time Integration ◽  
Simulation System ◽  
Device Under Test ◽  
The Real ◽  
Test Side ◽  
Interface Algorithm

The interface algorithm is critical for accuracy of the real-time integration simulation system of renewable energy and the power grid. To improve the overall performance of the existing interface algorithms, this paper proposes an optimized interface algorithm based on the auxiliary damping impedance method interface current feedback. We explain in detail the implementation principle of the new interface algorithm and the calculation method of impedance matching and also provide a parallel timing control logic. Using the new interface algorithm, we derive equations for voltage and current of the digital simulation system side and the device under test side and also compare it with the naturally coupled system without interface delay. Finally, we verify the accuracy of the new interface algorithm via establishing a complete model of the real-time integration simulation system with a wind turbine and the power grid. The results show that the accuracy can be improved 95% in the digital simulation system side and 17% in the device under test side by using the proposed interface algorithm in this paper.

Performance Test of Generator Terminal Supplement Damping Control Based on Real-Time Digital Simulation

2013 ◽  
Vol 278-280 ◽  
pp. 1648-1652
Author(s):  
Tao Wu ◽  
Tian Zhi Cao ◽  
Shan Ying Li
Keyword(s):  
Real Time ◽  
Closed Loop ◽  
Performance Test ◽  
Digital Simulation ◽  
Robustness Analysis ◽  
Testing Technique ◽  
The Real ◽  
Damping Control ◽  
Generator Terminal

Generator terminal supplement damping control (GTSDC) is an effective method to damp the sub-synchronous resonance. In this paper, the real time closed loop testing technique of GTSDC is studied. The four kind of performance test is discussed. They are characteristic valuation of GTSDC, model contrast of GTSDC and real-time digital simulation (RTDS), GTSDC coordination with the excitation damping control, and robustness analysis of GTSDC. The testing results show that the real time closed loop testing technique of GTSDC is effective and reliable.

The Real-time Digital Simulation System for Distribution Network

2021 ◽  
Author(s):  
Xu Quan ◽  
Lian Yin ◽  
Yuan Zhiyong ◽  
Lin Yuehuan ◽  
Liu Yinliang ◽  
...  
Keyword(s):  
Real Time ◽  
Digital Simulation ◽  
Distribution Network ◽  
Simulation System ◽  
The Real

?Estimation of the Real-time Respiratory Simulation System in CyberKnife Image-guided Radiosurgery

2010 ◽  
Vol 56 (1) ◽  
pp. 164-170
Author(s):  
Suk Lee ◽  
Chul Kee Min ◽  
Weon Kuu Chung ◽  
Jang Bo Shim ◽  
HyunDo Huh ◽  
...  
Keyword(s):  
Real Time ◽  
Simulation System ◽  
The Real ◽  
Image Guided

Dynamic Simulation and Test of IEC 61850-9-2 Process Bus Applications

2012 ◽  
Vol 433-440 ◽  
pp. 2699-2705 ◽  
Author(s):  
J. Mo ◽  
B. Liu ◽  
J.C Tan
Keyword(s):  
Real Time ◽  
Dynamic Simulation ◽  
Simulation Test ◽  
Iec 61850 ◽  
Actual Performance ◽  
The Real ◽  
Test Platform ◽  
Security And Reliability

IEC 61850-9-2 proposes the process bus communication for protection and automation within substations. The actual performance of process bus such as real-time, security and reliability are of concern, when transmission of sample values and trip signals over the same network. This paper presents the establishment of a dynamic simulation test platform, in order to facilitate the test of protection schemes over the process bus. An example is given to demonstrate that incorrect switch configuration, message priority tagging, and the volumes of traffic on the network may have an impact on the real time and reliability of the signals to be delivered.

The Research into the Visual and Simulated System of the Orbiting Satellite

2013 ◽  
Vol 753-755 ◽  
pp. 1324-1327
Author(s):  
Jia Qiang Dong
Keyword(s):  
Real Time ◽  
Time Management ◽  
Simulation System ◽  
Earth Model ◽  
Virtual Training ◽  
The Real ◽  
Whole Process ◽  
Network Training ◽  
The Earth ◽  
Simulated System

The visual and simulated system of the orbiting satellite based on the OpenGL technology is designed and realized in this paper, in which a visualization platform of the satellite in-orbit running is constructed. The simulation system has constructed the satellite model and the earth model by making use of 3DS MAX technology, and achieved the visualization of satellite in-orbit-running, the visualization of the communication route and of the overlay effect. At the same time, which has realized the access to the database of the orbiting satellite by means of ADO technology .The practices have proven that the system can simulate the whole process of satellite in-orbit-running in real-time, and provides the assistant support platform of the real-time management and decision. Apart from this, the system provides the network training of the space forces with virtual training platform. It is of great significance to construct the virtual battlefield simulation system.

The Development of Soft PLC Running and Simulation System Based on RTX

2013 ◽  
Vol 694-697 ◽  
pp. 2660-2666
Author(s):  
Quan Liang ◽  
Dong Hai Su ◽  
Jie Wang ◽  
Ye Mu Wang
Keyword(s):  
Real Time ◽  
Shared Memory ◽  
Simulation System ◽  
Instruction Set ◽  
The Real ◽  
Time Performance ◽  
Soft Plc

For the traditional PLC compatibility and poor scalability problems, this article developed a soft PLC running and simulation system. The system compatible with Mitsubishi FX2N series PLC instruction set. RTX was used to serve as the real-time kernel, ensured the real-time performance of the control, introduced the using method of RTX timer, multithreading and shared memory, emphasized the decoding function realization, also developed a soft PLC simulation system. Finally, through an example program verify the correctness of the running and simulation system.

Application of 3D Virtual Scene Building Technology Based on OSG in Gas Station Training Simulation System

2014 ◽  
Vol 918 ◽  
pp. 252-257
Author(s):  
Jian Mei Song ◽  
Zhong Hua Yan ◽  
Hao Yuan
Keyword(s):  
Real Time ◽  
Simulation System ◽  
Virtual Scene ◽  
The Real ◽  
Building Technology ◽  
Model Library ◽  
Extensible Markup ◽  
Training Simulation ◽  
Gas Station ◽  
Set Up

For a gas station training simulation system, the real time and reality of scene directly affect the application of system. In order to solve this problem, we used 3D virtual scene building technology based on OpenSceneGraph (OSG) to build gas station scene. Technology of levels of detail (LOD) was used to improve the real-time ability of the system during entity modeling. And then based on 3D entity model library and information files in Extensible Markup Language (XML), we built the parametric library and set up the gas station scene, which provided function information and attribute information. Experimental results show that the scene of virtual gas station can not only greatly improve the reality and immersion of system, but also well support the real-time simulation. Now, 3D virtual scene building technology based on OSG has applied successfully in gas station training simulation system, which provides feasible evidence for engineering simulation to solve practical problems.

Study on Driving System Based on EEG

2011 ◽  
Vol 63-64 ◽  
pp. 579-582
Author(s):  
De Rong Jiang
Keyword(s):  
Data Analysis ◽  
Data Acquisition ◽  
Real Time ◽  
Simulation System ◽  
Driving System ◽  
The Real ◽  
Car Driving

Driving System, which is programmed by C#, is a car driving manipulation to simulate the real car driving movement, obtain sense of simulation system. Obviously, Driving System has a lot of advantages as a driving system for fatigue detecting monitor. In driving system, there are three parts, which are the driving Environment, Data acquisition and Data analysis. Driving System can fulfill the interactivity and real time effectively, and has been used successfully in the drowsiness of driving, which can be familiarly analyzed with arithmetic of EEG.

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