Hydraulic energy storage type wind generation set

Abstract

The invention discloses a hydraulic energy storage type wind generation set. The hydraulic energy storage type wind generation set at least comprises a power source set, a power generation set and anenergy storage set; the power source set comprises a wind wheel, a gear ring in transmission fit with the wind wheel, a plurality of planet wheels engaged with the gear ring and constant-pressure variable hydraulic pumps with the power input ends in transmission fit with the planet wheels; clutches are arranged between the constant-pressure variable hydraulic pumps and the planet wheels, the powergeneration set comprises a plurality of hydraulic motors and power generators, and the power generators are matched with the rated power of the hydraulic motors and are driven by the hydraulic motors; and the energy storage set is used for storing energy when the clutches are closed but no power generation demand exists, and energy is released to drive the power generation set to generate power when the clutches are disconnected. According to the hydraulic energy storage type wind generation set, the number of the constant-pressure variable hydraulic pumps can be selected through connected ordisconnected of the clutches, the number of the constant-pressure variable hydraulic pumps is adaptively matched and operated according to the magnitude of wind power, the adaptability of the generator power and the wind wheel power is high, it is effectively guaranteed that the hydraulic power is matched with the generator power, and the wind energy utilization rate and the power generation quality are improved.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a hydraulic energy storage type wind power generating set. Background technique [0002] With the continuous reduction of traditional energy sources in the world in recent years, new energy sources are constantly being discovered to replace less and less fossil fuels. As an environmentally friendly renewable energy, wind power has also been developed by leaps and bounds, making due contributions to the gradual depletion of world energy and the environmental crisis. As a type of wind power generation, the hydraulic energy-storage wind turbine equipment has received unprecedented attention. It has been tested and put into use around the world, and will gradually replace the traditional speed-up gearbox—doubly-fed generator system and direct drive —Converter power generation system has become a new type of wind power generation technology. [0003] At pre...

AI Technical Summary

Problems solved by technology

[0003] At present, most hydraulic energy-storage wind turbines are not adaptable to the power of the generator and the power of the wind turbine due to the large range of wind speed changes in the actual operation process, which cannot ensure the matching of the hydraulic power and the power of the generator, thereby reducing the Wind energy utilization rate and power generation quality

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