Micro-grid networking system applicable to high-power wind power absorption

Abstract

The invention discloses a micro-grid networking system applicable to high-power wind power absorption. The micro-grid networking system applicable to high-power wind power absorption comprises a micro-grid networking system, at least one wind power plant, at least one high-capacity power conversion system, an AC bus I and a special wind power transmission line, wherein the micro-grid networking system comprises at least two micro-grid units and a system-level dispatching center; the wind power plant is connected with the AC bus I by virtue of the high-capacity power conversion system; the AC bus I is connected with the special wind power transmission line; the special wind power transmission line is connected with the micro-grid units included in the micro-grid networking system; and the system-level dispatching center is connected with each micro-grid unit. According to the micro-grid networking system disclosed by the invention, the problems that the high-power wind power is difficultly absorbed, a charging load of an electric automobile has high requirements on distribution network capacity and generating capacity and the like are solved.

Description

technical field [0001] The invention belongs to the technical field of micro-grids, and in particular relates to a micro-grid networking system suitable for high-power wind power consumption. Background technique [0002] With the increasing scarcity of energy in the world and the rapid development of science and technology, coupled with the continuous improvement of the awareness of environmental protection of the whole people, human beings are trying to find a renewable clean green energy that can replace oil, natural gas and other energy sources, and they are inexhaustible. Inexhaustible wind energy has become one of the most promising new energy sources due to its clean, pollution-free, and renewable advantages. With the gradual deepening of the government and the public's understanding of wind power, the official implementation of the "Renewable Energy Law" and the introduction of a number of special wind power policies, wind power will definitely make a great contribut...

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Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention proposes a micro-grid suitable for high-power wind power consumption in order to solve the problems that high-power wind power is difficult to accommodate and the charging load of electric vehicles imposes high requirements on distribution network capacity and power generation capacity. Networking system, the micro-grid units in a certain space are networked to increase the system capacity, and the wind power transmission dedicated line is set in the networking system, and each micro-grid unit can control whether the wind power is connected or not according to the actual situation of its power supply and demand, so that , not only can provide support for large-capacity wind power consumption, but also help to improve the flexibility of energy dynamic balance control in the network. In addition, the wind power energy transmitted by the wind power transmission line is not directly integrated into the power grid, but when the system energy is oversupplied , after AC-DC-AC power conversion and then merged into the large power grid, which greatly reduces the impact and impact of wind power grid-connected on the power system

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