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Wind-hydrogen coupling power generation system and control method thereof

A technology of a power generation system and a control method, which is applied to the control of a wind-hydrogen coupled power generation system and the field of wind-hydrogen coupled power generation systems, can solve the problems of wind power generation and abandonment of wind.

Active Publication Date: 2020-09-15
NANJING INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a wind-hydrogen coupling power generation system and its control method, and solve the technical problem of wind power generation in the prior art that has abandoned wind

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  • Wind-hydrogen coupling power generation system and control method thereof
  • Wind-hydrogen coupling power generation system and control method thereof
  • Wind-hydrogen coupling power generation system and control method thereof

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Embodiment Construction

[0093] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0094]Hydrogen energy has the advantages of cleanliness, high energy density, and easy storage and transportation. Using electrolyzers and fuel cells as energy-based units is in line with the country's concept of developing pure green energy; supercapacitors have the advantages of high power density and fast charging and discharging. It is used to smooth the fluctuation caused by the delayed response of the electrolyzer and fuel cell in the wind-hydrogen coupled power generation system. Therefore, the use of electrolyzers, fuel cells and supercapacitors to produce hydrogen from wind power is an effective method to ensure reliable operation of the power grid to stabilize power fluctuations.

[0...

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Abstract

The invention discloses a wind-hydrogen coupling power generation system and a control method thereof. A wind generating set, an alkaline electrolytic cell, a fuel cell and a super capacitor are respectively coupled to a direct current bus through bidirectional DC / DC, and the direct current bus is connected to a power grid through a DC / AC inverter; the wind generating set converts wind energy intoelectric energy and transmits the electric energy to the direct-current bus in real time, and if wind power output is greater than the load requirement, the remaining electric energy is transmitted to the electrolytic cell to electrolyze water, and generated hydrogen is stored in a hydrogen storage tank; and if the wind power output is less than the load demand, the fuel cell takes hydrogen as fuel to generate electric energy and transmits the electric energy to the direct-current bus. The electrolytic cell and the fuel cell are used as energy type units, and the super capacitor is adopted tostabilize fluctuation caused by delay response of the electrolytic cell and the fuel cell in the system.

Description

technical field [0001] The invention specifically relates to a wind-hydrogen coupled power generation system, and also relates to a control method of the wind-hydrogen coupled power generation system, which belongs to the technical field of new energy grid-connected operation. Background technique [0002] With the gradual deterioration of environmental problems and the intensification of the energy crisis, environmental problems, especially urban air pollution, have become an important indicator of the well-being of residents, and the research and promotion of wind energy have received more and more attention. However, the volatility, intermittency and uncontrollability of wind power generation lead to anti-peak shaving characteristics when it is connected to the grid alone, which further increases the pressure on the grid for peak shaving, forcing wind farms to abandon wind power and stop operation seriously. At present, energy storage technology has been proposed to solve...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/28H02J3/38H02J7/34H02J1/10H02J1/14
CPCH02J3/28H02J3/381H02J7/345H02J1/10H02J1/109H02J1/14H02J2300/28H02J2300/30H02J2207/50H02J2203/10H02J2203/20Y02E10/76Y02E60/36Y02E70/30
Inventor 李升夏书悦
Owner NANJING INST OF TECH
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