A smart substation based on clean energy applications

Abstract

The invention belongs to the technical field of power equipment and particularly relates to a novel intelligent substation on the basis of application of clean energy. The invention particularly relates to a wind power, photovoltaic and energy storage device which is a novel energy-saving intelligent substation on the basis of a three-winding transformer. The novel intelligent substation mainly comprises a power transformation system, a clean energy power generation system and a power consumption system in the substation, wherein the power transformation system is connected with a power grid and the clean energy power generation system; and the power consumption system in the substation is connected with the clean energy power generation system. According to the invention, the configuration of a substation power distribution transformer can be directly omitted; resources in the substation are sufficiently utilized; the operation and maintenance cost of the substation is effectively saved, and the power supply quality and the power supply reliability of power for the substation are greatly promoted. The novel intelligent substation has excellent application prospect in places with suitable wind and illumination or in economy demonstration areas with a high intelligent level.

Description

technical field [0001] The invention belongs to the technical field of power equipment, and in particular relates to an intelligent substation based on the application of clean energy. Specifically, it involves wind power, photovoltaic and energy storage devices, and is an energy-saving intelligent substation based on a three-winding transformer. Background technique [0002] As the global resource crisis and environmental pollution problems have become increasingly prominent in recent years, building a strong and reliable smart grid, actively accepting renewable and clean energy, and promoting the development of energy-saving and environmental protection industries have become the main ways for countries around the world to effectively respond to environmental and resource crises. With the development of wind power technology and photovoltaic power generation technology, the widespread use of clean energy has become possible. With the vigorous development of my country's s...

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Problems solved by technology

[0003] At present, there are more than 18,000 substations and more than 33,000 transformers under the State Grid Corporation of China. Most of the substations are powered by the grid to supply the normal operation of the substation. The power supply mode is single. In the case of system failure, it is difficult for the substation to ensure normal communication and communication for a long time. The self-healing ability of smart substations. At the same time, the power consumption of substations is also an important part of operation and maintenance costs. The development of new energy power generation technology provides a direction for solving these problems. Combining clean energy power generation with substations can not only improve the local area The effect of energy saving and emission reduction can be improved, the reliability of power supply can be enhanced, and the operation and maintenance costs of substations can be reduced, bringing economic benefits. Therefore, it is necessary to develop a smart substation solution based on clean energy applications to effectively solve the problem of insufficient reliability of power supply in substations. The problem of high maintenance cost

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