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There are many kinds of energy. According to whether it can regenerate, can be divided into renewable energy and non-renewable energy sources; According to the human development and utilization of technology maturity, it can be divided into conventional energy and new energy. Energy can also be divided according to its use. This is the



there are many kinds of energy. According to whether it can regenerate, can be divided into renewable energy and non-renewable energy sources; According to the human development and utilization of technology maturity, it can be divided into conventional energy and new energy. Energy can also be divided according to its use. This is the concentrated energy and the concentrated energy, namely distributed energy.

the distributed energy system is a kind of energy usage, along with the urbanization and human pursuit of a higher quality of life. It is the characteristics of cascade management and comprehensive utilization of energy, to achieve environmental protection, safety supplies and cheaper energy target, invest a small amount of energy at the same time, to meet the needs of more people.

distributed energy since the late 1970 s in the United States first developed for more than 30 years, in many countries, such as the United States, Japan, lamp posts offer Denmark and the Netherlands, developing and popularizing distributed energy. Its role in energy conservation and emissions reduction at the same time also make these countries enjoy these interests effectively, and promote its further development. Decades of experience in a foreign country is worth using for reference. In fact, this is the world trend of distributed energy development, energy and environmental situation, the requirements of economic sustainable development, as well as the characteristics of distributed energy. It can be seen that the distributed energy is not only a way of using some energy, and it is the main mode of the future energy supply. It is currently dominated by energy model to the user oriented method to provide the starting point of the transition of integrated energy solutions.

the renewable energy is abundant on earth, inexhaustible energy mainly. But its large-scale development and utilization has met the challenge of obstacles and fluctuation. With the rise of the solar panels distributed energy system, has found a new way to solve the problem. Energy strategy depends on the United States, for example, to increase gas shale gas revolution, through the development of the distributed energy and natural gas transportation directly replace coal and oil, formation energy as the core of the micro grid with natural gas distribution, and so on so as to adapt to all kinds of discontinuity. Unstable renewable energy will be the network connection into a smart grid. Intelligent technology to natural gas supply and broadcasting: water supply and drainage system by technical advantage of wood to reduce energy consumption and cost, maintain MeiYang advanced system of competitiveness, the development of information technology and intelligent maintenance. Strategic superiority and strategic capabilities. This can serve as the planning and construction of urbanization and a direction, to solve the problem of wisdom supply. This is also the government and many domestic experts and scholars on the basis of their own practice launched and advocated by the concept of distributed energy development.

in recent years, because of the cost of the solar panel equipment manufacturing significantly reduce, mass connected to the electricity grid has become a developing trend, to the already weak power system power access & throughout; Link has brought new challenges. As is known to all, in the manufacturing, transport, supply and use & throughout; In the process of electricity must be in time and space to achieve transient balance & throughout; 。 In the event of local imbalance, leads to the power quality problems, namely, the transient strong & throughout; Unbalanced it will suffer disaster, and may lead to the collapse of the power system and power. In order to ensure the safety of the public power grid, economic and reliable operation, must be the key node in power system, set up powerful electricity access & throughout; Unit ( The storage system) To support the system. This is a must in mass connected to the electricity grid must seriously research topic, such as photovoltaic and wind power.