Reliability design approach for protection and control equipment for MV distribution networks

1995 ◽  
Author(s):  
M. Lemaire
Keyword(s):  
Distribution Networks ◽  
Design Approach ◽  
Reliability Design ◽  
Control Equipment ◽  
Protection And Control ◽  
And Control

Highlighting the Importance of Chronology on Voltage Protection and Control in Active Distribution Networks

2017 ◽  
Vol 32 (1) ◽  
pp. 361-369 ◽  
Author(s):  
Glauco N. Taranto ◽  
Tatiana M. L. Assis ◽  
Djalma M. Falcao ◽  
Roberto C. de Carvalho
Keyword(s):  
Distribution Networks ◽  
Protection And Control ◽  
And Control ◽  
Active Distribution Networks

scholarly journals An Adaptive Differential Protection and Fast Auto-Closing System for 10 kV Distribution Networks Based on 4G LTE Wireless Communication

2019 ◽  
Vol 12 (1) ◽  
pp. 2 ◽  
Author(s):  
Wen An ◽  
Jun Jie Ma ◽  
Hong Yang Zhou ◽  
Hong Shan Chen ◽  
Xu Jun ◽  
...  
Keyword(s):  
Control System ◽  
Wireless Communication ◽  
Power System ◽  
Power Supply ◽  
Distribution Networks ◽  
Fault Isolation ◽  
Differential Protection ◽  
Current Differential Protection ◽  
Protection And Control ◽  
And Control

With the development of wireless communication technology and computer technology, more and more smart technologies have been applied in electricity distribution networks. This paper presents an adaptive current differential protection and fast auto-closing system for application in 10 kV distribution networks in China Southern Power Grid. The current differential protection can adaptively change its settings according to the topology change of the primary distribution networks, thus the system effectively reduces the operation and maintenance cost of the power distribution network. In order to restore the power supply for the healthy part of the 10 kV networks quickly after a power system fault is cleared, the protection and control system provides wide area control function for automatic fault isolation and automatic switching. The traditional overcurrent protection and control system have no fault location function, it may take several minutes or even hours to manually locate a fault and then restore the power supply. Compared with the protection and control system of the traditional 10 kV distribution networks, the system developed can locate and isolate faults within 900 ms (assuming that the operating time of the load switch is 700 ms), and can quickly restore power supply in less than one second after a power system fault is cleared.

Development and Field Experience of Digital Protection and Control Equipment in Power Systems

1982 ◽  
Vol PER-2 (11) ◽  
pp. 23-24
Author(s):  
Tokio Sugiyama ◽  
Sigeaki Kameoka ◽  
Kouji Maeda ◽  
Akira Kaneda ◽  
Tadahiro Goda
Keyword(s):  
Power Systems ◽  
Field Experience ◽  
Control Equipment ◽  
Digital Protection ◽  
Protection And Control ◽  
And Control

scholarly journals Review of MVDC Applications, Technologies, and Future Prospects

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8294
Author(s):  
Sophie Coffey ◽  
Victor Timmers ◽  
Rui Li ◽  
Guanglu Wu ◽  
Agustí Egea-Àlvarez
Keyword(s):  
Case Studies ◽  
Distribution Systems ◽  
Wind Farm ◽  
Distribution Networks ◽  
Offshore Wind ◽  
Converter Topologies ◽  
The Common ◽  
Protection And Control ◽  
And Control ◽  
Distribution Grids

This paper presents a complete review of MVDC applications and their required technologies. Four main MVDC applications were investigated: rail, shipboard systems, distribution grids, and offshore collection systems. For each application, the voltage and power levels, grid structures, converter topologies, and protection and control structure were reviewed. Case studies of the varying applications as well as the literature were analyzed to ascertain the common trends and to review suggested future topologies. For rail, ship, and distribution systems, the technology and ability to implement MVDC grids is available, and there are already a number of case studies. Offshore wind collection systems, however, are yet able to be implemented. Across the four applications, the MVDC voltages ranged from 5–50 kV DC and tens of MW, with some papers suggesting an upper limit of 100 kV DC and hundreds of MV for distribution networks and offshore wind farm applications. This enables the use of varying technologies at both the lower and high voltage ranges, giving flexibility in the choice of topology that is required required.

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