A reliability evaluation method for radial multi-microgrid systems considering distribution network transmission capacity

2020 ◽  
Vol 139 ◽  
pp. 106145 ◽  
Author(s):  
Yi Ren ◽  
Bofeng Cui ◽  
Qiang Feng ◽  
Dezhen Yang ◽  
Dongming Fan ◽  
...  
Keyword(s):  
Evaluation Method ◽  
Distribution Network ◽  
Reliability Evaluation ◽  
Transmission Capacity ◽  
Network Transmission

Research on Reliability Evaluation Methods of Distribution System

2014 ◽  
Vol 672-674 ◽  
pp. 1441-1446 ◽  
Author(s):  
Yu Qiang Ou ◽  
Le Feng Cheng ◽  
Jian Zhong Wen ◽  
Xuan Yu Qiu ◽  
Tao Yu
Keyword(s):  
Distribution System ◽  
Evaluation Method ◽  
Network Reliability ◽  
Distribution Network ◽  
Reliability Evaluation ◽  
Evaluation Indexes ◽  
Specific Distribution ◽  
And Function ◽  
Meaning And Function

Research on reliability of distribution network has very important meaning and function to ensure the quality of power supply. This paper introduces some basic concepts of reliability in distribution network, including distribution network reliability definition, task and index. The classical reliability evaluation method was reviewed, and focused on specific distribution network, an example analysis was given, and specific reliability evaluation indexes were calculated. Finally, the future development of distribution network reliability evaluation was made a simple prospect.

scholarly journals Research on evaluation method of energy supply reliability of regional energy Internet

2021 ◽  
Vol 261 ◽  
pp. 01008
Author(s):  
Pengli Li ◽  
Jian Su ◽  
Tao Yan ◽  
Jiqiu Liu ◽  
Xiaoguang Qi
Keyword(s):  
Power System ◽  
Evaluation Method ◽  
Distribution Network ◽  
Energy Coupling ◽  
Reliability Evaluation ◽  
Evaluation Index System ◽  
Load Reduction ◽  
Energy Internet ◽  
Regional Energy ◽  
Optimal Load

This paper studies the reliability evaluation technology of regional energy Internet and represents a reliability evaluation method considering the optimal load reduction strategy. The application scenario of regional Energy Internet with power system as the core is built. The specific form is that multiple Integrated Energy systems are connected to the superior distribution network through the tie line. The reliability evaluation index system of power system and regional energy Internet is introduced. Based on the modelling of components in the regional energy Internet application scenario in this paper, the operation model and two-state Markov model are mainly established for the renewable energy power generation devices, energy coupling devices and energy storage devices in IES. The optimal load reduction models based on load classification are established for the faults of distribution network lines and the faults of IES internal components connected to the distribution network in regional energy Internet respectively. Through the construction of different application scenarios, the load reduction situation under different faults and different component parameters is analysed, and the corresponding reliability index calculation and result analysis are carried out.

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 Reliability Evaluation Method of Distribution Network Based on Consumers’ Sensitivity Classification

2020 ◽  
Vol 1486 ◽  
pp. 062042
Author(s):  
Guanghui Sun ◽  
Tao Zhang ◽  
Qinghui Zeng ◽  
Wanjing Tu ◽  
Yunfei Wang ◽  
...  
Keyword(s):  
Evaluation Method ◽  
Distribution Network ◽  
Reliability Evaluation

scholarly journals Research on reliability evaluation of complex distribution network considering N-1 verification

2021 ◽  
Vol 2137 (1) ◽  
pp. 012014
Author(s):  
Yuehao Yan ◽  
Wei Bao ◽  
Shuai Gao ◽  
Quan Wang
Keyword(s):  
Radial Distribution ◽  
Distribution System ◽  
Evaluation Method ◽  
Rapid Development ◽  
Distribution Network ◽  
Reliability Evaluation ◽  
Capital City ◽  
Actual Distribution ◽  
Reliability Calculation ◽  
Complex Distribution

Abstract With the rapid development of power system, the distribution network structure is gradually mature and the connection situation is more complex. The traditional distribution network reliability calculation method can not accurately calculate the reliability index of complex distribution network. Based on the traditional simple power supply reliability evaluation method of radial distribution network, this paper completely considers the influence of circuit breaker, tie switch, branch line, standby transformer and other equipment, and puts forward an improved network equivalence method model. The model first treats the complex distribution system in layers, and then gradually equates it into a simple radial distribution network to calculate the reliability of the system. At the same time, this paper analyzes the distribution network with multi connection structure in a provincial capital city. The results show that this model simplifies the complexity of distribution system reliability calculation, improves the accuracy and speed of reliability calculation, and more truly reflects the reliability of actual distribution system.

scholarly journals Reliability evaluation method for distribution network

2017 ◽  
Vol 2017 (13) ◽  
pp. 1771-1776 ◽  
Author(s):  
Ningbo Liu ◽  
Tiantian Wu ◽  
Tao Xu ◽  
Yan Ma
Keyword(s):  
Evaluation Method ◽  
Distribution Network ◽  
Reliability Evaluation
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