Research on impact dynamics simulation of high-voltage circuit breaker's transmission system

2017 ◽  
Author(s):  
Wang Saihao ◽  
Wang Zhijun ◽  
Zhong Jianying ◽  
Du Yingqian ◽  
Jiang Jinghua ◽  
...  
Keyword(s):  
High Voltage ◽  
Transmission System ◽  
Dynamics Simulation ◽  
Impact Dynamics

scholarly journals Solid-State DC Circuit Breakers and their Comparison in Modular Multilevel Converter Based-HVDC Transmission System

Electronics ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 1204
Author(s):  
Gul Ahmad Ludin ◽  
Mohammad Amin Amin ◽  
Hidehito Matayoshi ◽  
Shriram S. Rangarajan ◽  
Ashraf M. Hemeida ◽  
...  
Keyword(s):  
Solid State ◽  
High Voltage ◽  
Direct Current ◽  
Circuit Breaker ◽  
Transmission System ◽  
Simulation Software ◽  
Fault Current ◽  
Circuit Breakers ◽  
Hvdc Transmission ◽  
Dc Circuit Breakers

This paper proposes a new and surge-less solid-state direct current (DC) circuit breaker in a high-voltage direct current (HVDC) transmission system to clear the short-circuit fault. The main purpose is the fast interruption and surge-voltage and over-current suppression capability analysis of the breaker during the fault. The breaker is equipped with series insulated-gate bipolar transistor (IGBT) switches to mitigate the stress of high voltage on the switches. Instead of conventional metal oxide varistor (MOV), the resistance–capacitance freewheeling diodes branch is used to bypass the high fault current and repress the over-voltage across the circuit breaker. The topology and different operation modes of the proposed breaker are discussed. In addition, to verify the effectiveness of the proposed circuit breaker, it is compared with two other types of surge-less solid-state DC circuit breakers in terms of surge-voltage and over-current suppression. For this purpose, MATLAB Simulink simulation software is used. The system is designed for the transmission of 20 MW power over a 120 km distance where the voltage of the transmission line is 220 kV. The results show that the fault current is interrupted in a very short time and the surge-voltage and over-current across the proposed breaker are considerably reduced compared to other topologies.

Arrester Protection of High Voltage DC Transmission System Converter Terminals

1971 ◽  
Vol PAS-90 (4) ◽  
pp. 1555-1562
Author(s):  
E. Sakshaug ◽  
J. Kresge ◽  
S. Miske
Keyword(s):  
High Voltage ◽  
Transmission System

scholarly journals Frequency/Voltage Regulation with STATCOM with Battery in High Voltage Transmission System

2016 ◽  
Vol 49 (27) ◽  
pp. 296-300 ◽  
Author(s):  
Jaeyoung Park ◽  
Jungwook Yu ◽  
Jungsoo Kim ◽  
Minho Kim ◽  
Kwangrae Kim ◽  
...  
Keyword(s):  
High Voltage ◽  
Voltage Regulation ◽  
Transmission System ◽  
High Voltage Transmission

Fault Diagnosis Simulation of Light High Voltage Direct Current Transmission System

2015 ◽  
Vol 740 ◽  
pp. 466-469
Author(s):  
Xue Hua Jiang
Keyword(s):  
Fault Diagnosis ◽  
High Voltage ◽  
Direct Current ◽  
Practical Method ◽  
Transmission System ◽  
System Structure ◽  
Major Power ◽  
High Voltage Direct Current ◽  
Light System ◽  
Hvdc Light

High Voltage Direct Current (HVDC) system was often the link between major power grids. In order to ensure the safe operation of HVDC, fault diagnosis method was studied. The system structure of HVDC Light system was analyzed, and the normal and fault conditions of the transmission system were simulated in the Matlab platform. This method was very convenient and simple, and it could restore the real situation. The use of simulated waveform could effectively identify the fault types of actual situation, and then it was a flexible, efficient and practical method of fault diagnosis in HVDC Light system.

scholarly journals Operating Performance of Power Systems Integrated HVDC Solution: KonTum-GiaLai Transmission System Case Considering Penetration of Renewable Energy

2020 ◽  
Vol 18 (4.2) ◽  
pp. 32
Author(s):  
Kim Hung Le ◽  
Ngoc Thien Nam Tran ◽  
Viet Tri Nguyen ◽  
The Khanh Truong ◽  
Minh Quan Duong
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
High Voltage ◽  
Short Circuit ◽  
Renewable Energy Sources ◽  
Transmission Efficiency ◽  
Transmission System ◽  
Large Power ◽  
Hvdc System ◽  
Hvdc Transmission

The increasing demand for electricity along with the development of distributed generators showed that improving transmission efficiency and reliability is an indispensable requirement in the operation of the power system. Advanced technologies need to be applied to modern power systems for purposes of conveying large power flows, mitigating the risk of faults. High-voltage direct current (HVDC) transmission is now considered an effective solution for investment in large-length power lines, replacing the conventional high-voltage alternative current (HVAC) transmission system, especially in period of increasing generation capacity due to the penetration of renewable energy sources. This study assesses the performance of the HVDC system on an actual power grid based on planning and improvement demands. The calculation results of power flows, power losses and short-circuit faults were investigated using ETAP software X  

Nanoscale Impact Dynamics Using Molecular Dynamics Simulation

2003 ◽  
Vol 72 (3) ◽  
pp. 533-544
Author(s):  
Chi-Chuan Hwang ◽  
Jee-Gong Chang ◽  
Shin-Pon Ju ◽  
Ming-Horng Su
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Dynamics Simulation ◽  
Impact Dynamics

Optimization of Extra High Voltage Transmission System Modes

2020 ◽  
Author(s):  
Oksana Dovgalyuk ◽  
Roman Bondarenko ◽  
Ivan Yakovenko ◽  
Eugene Dyakov ◽  
Yuriy Pryvalov
Keyword(s):  
High Voltage ◽  
Transmission System ◽  
High Voltage Transmission ◽  
Extra High Voltage
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