Hydro-viscous speed regulator of wind power synchronous generator set

Abstract

The invention provides a hydro-viscous speed regulator of a wind power synchronous generator set. The hydro-viscous speed regulator is mainly composed of a machine body, an input shaft, an output shaft, a friction plate assembly and a control oil cylinder. The control oil cylinder is a double-acting single-ended output oil cylinder, a metering type closed loop is adopted as a hydraulic control oil passage, a metering type plunger fuel pump is adopted as a fuel pump, and a piston rod of the control oil cylinder is connected with a pressing plate of the friction plate assembly through an isolating bearing. A programmable controller or a single board computer electric control system for automatically operating and controlling the oil passage is arranged. When the oil passage is closed, the piston can be rigidly locked at a given position. The hydro-viscous speed regulator is simple in hydraulic loop, strong in adjusting rigidity, good in speed adjusting stability, flexible in motion, high in power and wide in speed adjusting range. The wind power synchronous generator set formed by the hydro-viscous speed regulator can completely solve the technical problem of low voltage rid-through in wind power generation. The hydro-viscous speed regulator can also be used for forming a marine shaft synchronous generator set with a main engine on a ship as power, and transportation cost is greatly saved.

Description

technical field [0001] The invention relates to wind power generation technology, in particular to a hydraulic viscous speed stabilizer for wind power synchronous generator sets. Background technique [0002] At present, a strong power supply grid provides people with powerful electric energy. The vast majority of this electricity is consumed in thermal power plants, coal and oil, which are non-renewable energy sources, and then sent to the grid with synchronous generator sets. The power generation and distribution technology of synchronous generator sets is a very mature technology, which ensures the safe operation of the power grid. [0003] Because thermal power consumes a large amount of non-renewable energy such as coal and oil and seriously pollutes the earth, people are actively looking for new energy to replace thermal power, among which wind energy is a huge available green energy. Therefore, wind power generation has developed by leaps and bounds in the world. Du...

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Problems solved by technology

[0004] There are many speed-regulating devices in the prior art, such as electromagnetic clutches, speed-regulating fluid couplings, steel ball continuously variable transmissions, pulley continuously variable transmissions, conventional fluid-viscous speed-regulating clutches, etc., due to their own reasons, they are all It cannot be used as a speed stabilizing device for wind synchronous generators

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