Smart grid was proposed as a practical form of future power distribution system. Evaluating the reliability of smart grids was of great importance and significance. A revised fault tree model was proposed to distingui...Smart grid was proposed as a practical form of future power distribution system. Evaluating the reliability of smart grids was of great importance and significance. A revised fault tree model was proposed to distinguish and separate grid-connected operation mode and islanded operation mode of smart grids,focusing on the perspective of the consumers. A hierarchical Monte Carlo simulation method for reliability evaluation was also proposed based on the proposed fault tree model. A case of reliability evaluation for the future renewable electric energy delivery and management( FREEDM) system was carried out and analyzed. The proposed methods can be applicable to other forms of smart grids.展开更多
The objective of this paper is to show that the German way towards renewable energy production could become an example for successful energy transition in other countries.Based on the Renewable Energy Act(Erneuerbare ...The objective of this paper is to show that the German way towards renewable energy production could become an example for successful energy transition in other countries.Based on the Renewable Energy Act(Erneuerbare Energien Gesetz(EEG))in the year 2000 the most important steps for this transition seemed to be start-ups with relevant and reliable feed-in tariffs,the involvement of“many single”intelligently and digitally connected producers to form a kind of“swarm-energy.”In addition regional smart grids,a national grid structure with sufficient capacity,and,last but not least,implementation of energy efficiency tools in the building,construction and transport sector,are necessary driving sources.展开更多
文摘Smart grid was proposed as a practical form of future power distribution system. Evaluating the reliability of smart grids was of great importance and significance. A revised fault tree model was proposed to distinguish and separate grid-connected operation mode and islanded operation mode of smart grids,focusing on the perspective of the consumers. A hierarchical Monte Carlo simulation method for reliability evaluation was also proposed based on the proposed fault tree model. A case of reliability evaluation for the future renewable electric energy delivery and management( FREEDM) system was carried out and analyzed. The proposed methods can be applicable to other forms of smart grids.
文摘The objective of this paper is to show that the German way towards renewable energy production could become an example for successful energy transition in other countries.Based on the Renewable Energy Act(Erneuerbare Energien Gesetz(EEG))in the year 2000 the most important steps for this transition seemed to be start-ups with relevant and reliable feed-in tariffs,the involvement of“many single”intelligently and digitally connected producers to form a kind of“swarm-energy.”In addition regional smart grids,a national grid structure with sufficient capacity,and,last but not least,implementation of energy efficiency tools in the building,construction and transport sector,are necessary driving sources.
