Based on smart grid area, heat-exchange network is used together with multi-energy analysing method. Also, pinch technology is optimized, considering many kinds of load, such as cold, heat, electric and illumination. What is more, KW is used in heat-exchange network, as a bridge leading to other kinds of energy. A regional smart grid pinch technology is proposed in this paper, which is also useful in many kinds of users, such as hospital, school, super marcket, community and so on.
With the development of smart grid construction and the innovation of the business mode of State Grid, power systems business including generation, transmission, transformation, distribution, consumption and dispatching, produces a large amount of data every day. At the same time, power system is also one of the important application areas of big data. Based on the smart grid construction of Sino-Singapore Tianjin Eco-city, the model of big data transaction between power system and other industries is researched. First, the sources and characteristics of muti energy data in Sino-Singapore Tianjin Eco-city are analysed. Furthermore, this paper proposes a big data transaction model turned into multi attribute negotiation, and the utility function of multi attribute negotiation is proposed to reflect the correlation degree between different attributes. Finally, a multi objective optimization algorithm based on vector evaluated genetic algorithm for big data transaction of smart grid is given, so as to realize a win-win situation between buyers and sellers.
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