2094-BMP5-M [Abstract] : Energy is a key help to maintain social stability and development, which can be reasonably transformed into the power, light energy, heat energy and other natural resources necessary for the public in the actual production and development stage. Combined with various conditions and classification criteria, energy can be diversified classification positioning, mainly including conventional energy and new energy, the former usually covers oil, hydropower, natural gas, coal and other popular use of energy types, while the latter is the new era of society has not been widely developed and utilized resources, mainly involving ocean energy, solar energy, wind energy and geothermal energy and so on. During this period, wind energy is mainly due to the difference in air pressure caused by the water vapor and temperature difference generated by the surface structure under high temperature conditions, and then the wind generated by the continuous flow of air from the high pressure area to the low pressure area, and the kinetic energy formed in this process is called wind energy. Solar energy refers to the energy conversion and utilization of sunlight on the earth’s surface. In order to effectively reduce the impact of power fluctuations, the energy storage system in distributed generation needs to expand new energy output in the external grid, so as to promote the system to maintain its own load output state at all times.
【 Key words 】 : Distributed new energy; Generate electricity; Energy storage system; Energy management; analyze
1 Introduction
Under the concept of new energy, it can be defined as: new energy refers2094-BMP5-M to a certain amount of clean renewable energy, it is a new type of sustainable development of resources and energy. Biomass energy is energy conversion through the photosynthesis of various green plants. Geothermal energy mainly comes from the natural heat energy present in the Earth’s lava, and ocean energy usually covers wave energy, tidal energy, and so on. Cost is a measurement method to expand the calculation of resource consumption, which involves not only the consumption of capital costs, but also the cost of human resources and material resources. As the pricing condition of product price, cost plays a key role in demonstrating the management level, operating performance and competitive strength of an enterprise. The material consumption, productivity and energy consumption of various products run through the whole process of enterprise management, and the cost index is reflected in the public view. In the process of social development, energy is the material basis for human survival and activities, and an important driving force for economic growth. In the past few decades, the large consumption of fossil fuels and environmental pollution has not been solved, people began to seek new clean renewable energy to replace the traditional oil, coal and other non-renewable energy resources. In recent years, the development and utilization of new renewable energy sources such as wind energy and solar energy have received more and more attention, and China has taken wind power as a key project in the construction of future power systems.
2. Analyze the overview of new energy
2.1 Analyze the meaning of new energy
China’s traditional fossil energy is mainly coal, oil and natural gas, of which coal reserves account for about 70% of the total reserves, but these minerals are non-renewable, and renewable coal accounts for about 60% of the total output, about 5% to 10% of the country’s total coal production. Due to the combustion of a large number of pollutants (such as sulfur dioxide, NOx,CH4), resulting in serious environmental pollution. Therefore, it is an important task for power grid companies to develop new clean and efficient alternative clean and environmentally friendly power sy2094-BMP5-M stems, reduce the dependence on conventional power sources, achieve energy saving and emission reduction, and improve the safe and stable operation of the power system. In the traditional power system, the main use is wind, solar, water and so on. And these are electricity, they can not be replaced, so people have turned their attention to other areas – photovoltaic power generation. Wind energy as the world’s abundant available energy, it is also an inexhaustible and important source. However, due to its own limitations, its development and utilization are greatly limited. Therefore, in order to make the technology of wind power generation better application, it is necessary to carry out more in-depth research and exploration.
2.2 Analyze the current situation of new energy power generation
For China, there is a relatively rich reserves of wind energy, of which the development and application of solar energy is one of the biggest advantages, in the past two decades, the development of photovoltaic industry is fast. In 2011, the total installed capacity of photovoltaic power generation reached 30 thousand kilowatts, accounting for 0.5 percent of the country’s total power generation. However, due to the backward technology and high cost and other factors, the current scale of wind power generation has been unable to meet the market demand. The development and application of new energy power generation in China started late, under the planned economy system, the dependence on traditional thermal power generation is very strong, and due to the uneven distribution of new energy resources, the utilization rate of new energy is low, which also limits its scope of use.
