A new smart distribution grid fault self-healing system based on traveling-wave

2013 ◽  
Author(s):  
Liu Qianqian ◽  
Xiangjun Zeng ◽  
Ma Xue ◽  
Li Xiang
Keyword(s):  
Traveling Wave ◽  
Self Healing ◽  
Distribution Grid ◽  
Healing System ◽  
Smart Distribution Grid

Development and Application of Smart Distribution Grid Self-Healing Control System

2014 ◽  
Vol 960-961 ◽  
pp. 828-831
Author(s):  
Shan Shan Li ◽  
Hong Dan Li ◽  
Hui Quan Zou ◽  
Yao Qiang Liu ◽  
Xiang He
Keyword(s):  
Fault Location ◽  
Fault Isolation ◽  
Risk Prevention ◽  
Self Healing ◽  
Distribution Grid ◽  
High Quality ◽  
Operation Optimization ◽  
Safety Warning ◽  
Power Restoration ◽  
Smart Distribution Grid

Self-healing is an important feature of smart distribution grid. Self-healing control for smart distribution grid covers risk prevention and operation optimization before accidents, in addition, it covers fault location, fault isolation and power restoration. The research of self-healing control theory, risk assessment, fault diagnosis and safety warning for smart distribution grid provides technical supports to help build a safe, reliable, efficient, high-quality, flexible and compliant smart distribution grid.

Discussion about the Critical Business Demand of Smart Distribution Grid and Utilization

2014 ◽  
Vol 672-674 ◽  
pp. 1353-1357
Author(s):  
Yong Biao Yang ◽  
Shi Ming Xu ◽  
Li Huang ◽  
Xing Ying Chen ◽  
Kun Yu ◽  
...  
Keyword(s):  
Electric Power ◽  
Distributed Generation ◽  
Self Healing ◽  
Demand Side ◽  
Distribution Grid ◽  
Business System ◽  
Business Requirement ◽  
Smart Distribution Grid ◽  
And Function ◽  
Intelligent Planning

The wind-solar-storage and other distributed generation (DG) accessing to the distribution grid and user’s interaction with the grid change the business’s forms of the traditional distribute and utilize system, and while the supplier and demander of electric power also set higher requirements on business’s functions of the smart distribution and utilization system. Based on business requirement of smart distribution and utilization, the major content and function of distribution and utilization link are discussed, including intelligent planning, intelligent dispatching, self-healing control, demand side management, two-way interaction and so on. It makes the architectures of business and the objectives of construction more clear and promotes the construction of the business system in the smart distribution and utilization system.

scholarly journals Influencing Factors on the Healing Performance of Microcapsule Self-Healing Concrete

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4139
Author(s):  
Yanju Wang ◽  
Zhiyang Lin ◽  
Can Tang ◽  
Wenfeng Hao
Keyword(s):  
Compressive Strength ◽  
Sodium Silicate ◽  
Recovery Rate ◽  
Sound Speed ◽  
Orthogonal Experimental Design ◽  
Self Healing ◽  
Damage Degree ◽  
Strength Recovery ◽  
Healing System ◽  
Recovery Performance

The amounts of the components in a microcapsule self-healing system significantly impact the basic performance and self-healing performance of concrete. In this paper, an orthogonal experimental design is used to investigate the healing performance of microcapsule self-healing concrete under different pre-damage loads. The strength recovery performance and sound speed recovery performance under extensive damage are analyzed. The optimum factor combination of the microcapsule self-healing concrete is obtained. Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) are carried out on the concrete samples before and after healing to determine the healing mechanism. The results show that the healing effect of self-healing concrete decreases with an increase in the pre-damage load, and the sound speed recovery rate increases with an increase in the damage degree. The influence of the sodium silicate content on the compressive strength and compressive strength recovery rate of the self-healing concrete increases, followed by a decrease. The optimum combination of factors of the microcapsule self-healing system is 3% microcapsules, 30% sodium silicate, and 15% sodium fluosilicate. The results can be used for the design and preparation of self-healing concrete.

Multi-Mode Communication Distribution Network Supervisory Terminal Unit Based on Embedded Systems

2013 ◽  
Vol 341-342 ◽  
pp. 1229-1234
Author(s):  
Guang Yang ◽  
Li Ping Su ◽  
Ru Lin Zhao ◽  
Jun Sheng Wu
Keyword(s):  
Embedded Systems ◽  
Distribution Network ◽  
Distribution Grid ◽  
Local Data ◽  
Terminal Unit ◽  
Grid Construction ◽  
Smart Distribution Grid ◽  
Multi Mode

Distribution network supervisory terminal unit is widely used in the smart distribution grid construction. To solve the problem that the means of communication is short, a multi-mode communication distribution network supervisory terminal is proposed which can be contactless operated and can collect and transfer local data remotely.

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