Wind power distributed spontaneous self-powered system device

Abstract

The invention discloses a wind power distributed spontaneous self-powered system device and belongs to the technical field of wind power generation and power supply. A public grid is electrically connected with a voltage transformer; the voltage transformer is electrically connected with a circuit breaker I; the circuit breaker I is electrically connected with an external network electric workshop through the public grid; the public grid is connected in parallel with a circuit breaker II; the circuit breaker II is connected with a current transformer bank; a grid-connected power network rectifying module, a wind power generator side rectifying module and an inversion rectifying module are arranged in the current transformer bank; the circuit breaker II is electrically connected with the grid-connected power network rectifying module; the grid-connected power network rectifying module is connected in parallel with the wind power generator side rectifying module through one end of a DC (direct current) busbar and is connected in parallel with the inversion rectifying module through the other end of the DC busbar; the wind power generator side rectifying module is connected with a wind power generator set through a wind power generator set electrical quantity measuring device; the inversion rectifying module is connected with a power supply change-over switch through a workshop electrical quantity measuring device; one path of the power supply change-over switch is connected with the public grid; and the other path of the power supply change-over switch is connected with an internal network electric workshop.

Description

technical field [0001] The invention relates to a distributed wind power self-power supply system device, which belongs to the technical field of wind power power supply technology. Background technique [0002] In today's context of increasing pressure on energy and the environment, the development of distributed energy is one of the important measures for countries around the world to promote energy conservation and emission reduction and address climate change. As a beneficial and important supplement to the power system, distributed energy is organically unified with large power sources and large power grids, and both are indispensable. [0003] Distributed power generation has been applied in my country for a long time. At present, the installed capacity and power generation capacity of distributed small hydropower in my country rank first in the world, but distributed power generation systems such as user-side photovoltaic power generation systems and natural gas cooli...

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