Alternating-current and direct-current wind-solar hybrid power generation system and power smoothing control method

A technology of wind-solar hybrid and power generation system, which is applied in the direction of wind power generation, single-network parallel feeding arrangement, climate change adaptation, etc. It can solve the problems of high cost of power plant infrastructure and waste of land resources, and achieve the goal of avoiding waste of land resources and small losses , The effect of saving infrastructure costs

Active Publication Date: 2019-12-03
SUNGROW POWER SUPPLY CO LTD
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Problems solved by technology

[0004] The present invention provides an AC-DC wind-solar hybrid power generation system to solve the problems of waste of land resources and high cost of power station infrastructure in the prior art

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  • Alternating-current and direct-current wind-solar hybrid power generation system and power smoothing control method
  • Alternating-current and direct-current wind-solar hybrid power generation system and power smoothing control method
  • Alternating-current and direct-current wind-solar hybrid power generation system and power smoothing control method

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Embodiment Construction

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0055] The invention provides an AC / DC wind-solar hybrid power generation system to solve the problem of low conversion efficiency of wind energy in the prior art.

[0056] see Figure 1a and Figure 1b , the AC-DC wind-solar hybrid power generation system, including: a plurality of photovoltaic high-voltage isolated DC / DC converters 101, a plurality of wind energy high-voltage isolated DC / DC converters 102, at least one wind energy device, M upper bridge arms 201, M A lower bridge arm 202...

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Abstract

The invention provides an alternating-current and direct-current wind-solar hybrid power generation system. By means of reasonable system arrangement, wind power and photovoltaic power are integratedinto one system, the infrastructure cost of a set of power station in the prior art is saved, comprehensive utilization of wind energy resources and illumination resources can be achieved on limited land resources, and the problem of land resource waste in the prior art is avoided. The invention further provides a power smoothing control method applied to the alternating-current and direct-currentwind-solar hybrid power generation system, on the basis of solving the problem, the characteristic that the adjustable power range of a single fan in the wind power generation part is large can be utilized, and system power smoothing of the power station level can be effectively implemented.

Description

technical field [0001] The invention relates to the technical field of photovoltaic power generation, in particular to an AC / DC wind-solar hybrid power generation system and a power smoothing control method. Background technique [0002] With the development of new energy power generation technology, photovoltaic power generation and wind power generation have been widely promoted, but the existing photovoltaic power generation system and wind power generation system are independent of each other, and the connection between the two is limited to a certain distance of communication. High voltage transmission cables are connected to the main grid only. [0003] With this solution in the prior art, the photovoltaic power generation system is not suitable for installing photovoltaic panels on the uneven mountaintops, and the distance between two wind turbines in the wind power generation system is generally long, which leads to waste of land resources; and the photovoltaic power...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J3/46
CPCH02J3/46Y02A30/60Y02E10/76
Inventor 王新宇徐君庄加才顾亦磊张朝宣
Owner SUNGROW POWER SUPPLY CO LTD
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