Overview on Micro-Grid Technology Research

2013 ◽  
Vol 749 ◽  
pp. 618-621 ◽  
Author(s):  
You Jie Ma ◽  
Kun Zhou ◽  
Xue Song Zhou
Keyword(s):  
Power Generation ◽  
Distributed Generation ◽  
Power Supply ◽  
Large Scale ◽  
Grid Technology ◽  
Technology Research ◽  
Generation System ◽  
New Energy ◽  
Power Generation System ◽  
Micro Grid

Traditional central power supply and distributed generation have the advantages and limitations themselves. Micro grid technology can integrate the advantages of distributed generation and that makes for large scale new energy and renewable energy power generation system connected to the grid. First, the micro grid research background and significance are introduced in detail, then the current research situations of micro-grid at home and abroad are represented, in the end, the key problems and development prospect of micro grid are discussed emphatically.

Analyzing sustainable power supply chain performance

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jiasen Sun ◽  
Shuqi Xu ◽  
Guo Li
Keyword(s):  
Power Generation ◽  
Power Supply ◽  
Regional Differences ◽  
Generation System ◽  
Two Stage ◽  
Content Type ◽  
Dea Model ◽  
Sustainable Performance ◽  
Proposed Model ◽  
Power Generation System

PurposeThe power industry is the pillar industry of the Chinese economy, and also a major carbon emitter. The performances of both the production and operation of the power industry are crucial for a harmonious development of society. This study proposes an improved data envelopment analysis (DEA) model to analyze the sustainable performance of China's power supply chain (PSC).Design/methodology/approachTo analyze the sustainable performance of PSC systems in China's provincial regions, this study proposes a two-stage directional distance function (DDF) model. The proposed model not only considers the leader–follower game relationship between the power-generation system and the retail system, but also considers the factors that measure the sustainability level of the PSC.FindingsThe proposed model is applied to assess the sustainable performance of the PSCs of China's provincial regions. The findings are valuable and mainly include the following aspects: First, compared with other models, this study regards the intermediate variable of the power system as a freely disposable variable; therefore, the efficiency of the proposed model is more realistic. Second, the average efficiency of China's power retailing system is generally lower than the average efficiency of its power-generation system. Third, significant regional differences affect the power-generation efficiency, while the regional differences in power retail efficiency are not significant. The power-generation performances of PSCs in East China and Northeast China are generally higher than in other regions.Originality/valueThis study introduces the convex technique into a DEA model and thus proposes an improved two-stage DDF DEA model. In response to the game-theoretic inherent in power systems, this study also introduces the leader–follower game into the two-stage model. In addition to the theoretic novelty, all PSCs can be classified with this model. Moreover, specific recommendations for each type of PSCs are proposed based on the efficiency results, thus providing vital guidance for the practice.

Feasibility Study on Wind Power Distributed Grid Connection in Fuxin

2014 ◽  
Vol 644-650 ◽  
pp. 3890-3893
Author(s):  
Ze Zhou ◽  
Xu Zhang ◽  
Tian Long Shao
Keyword(s):  
Power Generation ◽  
Wind Power ◽  
Distributed Generation ◽  
Power Supply ◽  
Large Scale ◽  
Wind Power Generation ◽  
Wind Power Integration ◽  
Grid Connection ◽  
Advisory Opinions ◽  
System Power

The Distributed Generation can enhance the system power supply reliability and alleviate the pitch peak and restricted transmission capacity caused by large-scale wind power grid connection and other problems. In Fuxin, the system power supply is inadequate; the wind power integration is restricted and there are rich wind power reserves. Based on the current situation, this paper analyzes the necessity and feasibility of developing the distributed wind power in Fuxin and provides advisory opinions on the development sites and mode of wind power generation.

Research on General Interface Model Suitable for Electromechanical Transient Simulation

2014 ◽  
Vol 551 ◽  
pp. 326-330
Author(s):  
Xiao Yan Sun ◽  
Yong Qiang Zhu
Keyword(s):  
Power Generation ◽  
Transient Simulation ◽  
Interface Model ◽  
Generation System ◽  
Modeling And Control ◽  
New Energy ◽  
Power Generation System ◽  
And Control ◽  
General Interface ◽  
Made In

New energy power generation system needs interface converter to connect to the grid. Because the type of new energy is different, its interface converter is also different. In order to adapt to the diversification of the modeling and control strategy of the converter, a generalized interface model is established in this paper. The model is based on the electromechanical transient simulation, which ignores the physics switching device and simplifies the control module. Finally, adaptive verifications are made in PSCAD/EMTDC and Matlab/Simulink for photovoltaic power generation system and wind power generation system. The results of simulation prove the validity of the generalized model.

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