Automatic routing of medium voltage distribution network based on load complementary characteristics and power supply unit division

2021 ◽  
Vol 133 ◽  
pp. 106467
Author(s):  
Xiaoou Liu
Keyword(s):  
Power Supply ◽  
Distribution Network ◽  
Power Supply Unit ◽  
Voltage Distribution ◽  
Medium Voltage

Power Supply Reliability Evaluation Based on the Characteristics Mode of Large-Scale Medium Voltage Distribution Network

2013 ◽  
Vol 341-342 ◽  
pp. 1380-1383
Author(s):  
Yan Yan Cui ◽  
Da Pu Zhao ◽  
Wei Liu ◽  
Yu Long
Keyword(s):  
Power Supply ◽  
Large Scale ◽  
Evaluation Method ◽  
Network Reliability ◽  
Structural Characteristics ◽  
Distribution Network ◽  
Reliability Evaluation ◽  
Voltage Distribution ◽  
Medium Voltage ◽  
Supply Reliability

It is difficult to evaluate and analyze power supply reliability of large-scale medium voltage distribution network by detailed modeling method. The paper proposes a power supply reliability evaluation method of large-scale medium voltage distribution network, which is based on the network reliability characteristics model. Lines with similar structural characteristics are designated as one model. The reliability index of each mode can be represented by the typical lines. The assessment principle, process and the advantages of this method are elaborated. The medium voltage distribution network of Nanjing area is taken as an example to evaluate power supply reliability. And the results are compared with historical statistics. The result shows that the method can greatly reduce the workload and has high accuracy. It can be used to evaluate the reliability of large-scale medium voltage distribution network.

scholarly journals Permanent Closed-Loop Operation as a Measure for Improving Power Supply Reliability in a Rural Medium Voltage Distribution Network

2021 ◽  
Vol 19 ◽  
pp. 523-527
Author(s):  
G. Stumberger ◽  
◽  
M. Roser ◽  
B. Polajzer
Keyword(s):  
Power Supply ◽  
Rural Areas ◽  
Urban Areas ◽  
Distribution Systems ◽  
Closed Loop ◽  
Distribution Network ◽  
Distribution Networks ◽  
Voltage Distribution ◽  
Medium Voltage ◽  
Supply Reliability

Power supply reliability is one of the critical elements of power quality. Its improvement in medium voltage distribution systems in urban areas is typically achieved by cabling. Unfortunately, this approach is often too expensive to be applied in rural areas. One of the possible alternative solutions that can be used in rural medium voltage distribution networks is permanent closed-loop operation. It requires the introduction of additional reclosers with properly parametrized protection relays enabling directional protection. This paper focuses on the case study performed in the 20 kV rural distribution network of Elektro Celje d.d.. Two feeders, where the reliability of the power supply was low, were analyzed. Results of techno-economical evaluation eliminated cabling as a viable solution. The permanent closed-loop operation was selected and implemented after proper placement and parameterization of relays with directional protection functions. The results of two years operation in permanent closedloop arrangement of feeders show substantial improvement in the reliability of power supply.

scholarly journals Studi Penempatan Titik Pentanahan Kawat Tanah Pada Penyulang Serangan

2016 ◽  
Vol 15 (1) ◽  
pp. 27
Author(s):  
I Wayan Agus Teja Baskara ◽  
I G Dyana Arjana ◽  
I W Rinas
Keyword(s):  
Distribution Network ◽  
Economic Aspect ◽  
Voltage Distribution ◽  
Lightning Strikes ◽  
Medium Voltage ◽  
The Cost

Ground wire is one of the lighning protection instrument used in medium voltage distribution network with the intention to reduce interference due to lightning strikes. On the feeder Serangan the ground wire put 4 – 5 wicket. To know effective gap of ground wire is put on the feeder Serangan then used effectiveness ground wire parameters and total of disorder by lightning strikes directly or indirectly. From the analysis is obtained the effective gap on scenario 4 by 3 – 4 wicket. Choosing scenario 4 is as effective gap because seen by economic aspect, as longest gap point put of ground wire then the cost needed to use material and the installation of ground wire will be cheaper.  DOI: 10.24843/MITE.1501.05

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