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Combined power generation system

A technology of combined power generation and photovoltaic power generation system, applied in the field of solar energy

Pending Publication Date: 2021-03-12
南方电网电动汽车服务有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Affected by the characteristics of time and space, the power curve of wind-solar combined power generation has the characteristics of volatility and randomness. At the same time, considering its technical bottleneck in smoothing output power, the direct connection of large-scale wind-solar combined power generation systems to the distribution network will still affect the distribution network system. Stability and power quality have a non-negligible impact

Method used

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Embodiment Construction

[0043] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. A preferred embodiment of the invention is shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0045] In the...

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Abstract

The invention relates to a combined power generation system which comprises: a wind power generation system; a photovoltaic power generation system; an energy storage system which is used for storingredundant electric energy of the wind power generation system and the photovoltaic power generation system and providing the electric energy when the power supply of the wind power generation system and the photovoltaic power generation system is insufficient; an energy management system which is connected with the wind power generation system, the photovoltaic power generation system and the energy storage system, and is used for adjusting the energy storage system to charge and discharge according to the predicted electric energy output by the wind power generation system and the photovoltaic power generation system and the electric energy required by the load; a converter which is connected with the wind power generation system, the photovoltaic power generation system and the energy storage system; and a grid-connected inverter which is connected with the converter and the power grid bus. According to the technical scheme, the energy storage system with good performance is configured in the wind-solar combined power generation system, so that the increasingly prominent consumption problem can be effectively solved, the wind-solar resource utilization rate is improved, the wind-solar combined power generation output power is smoothened, and the adverse effects of power generation volatility and randomness on a power system are reduced.

Description

technical field [0001] The invention relates to the field of solar energy, in particular to a combined power generation system. Background technique [0002] As wind power and photovoltaics are continuously connected to the distribution network, limited by the three factors of power consumption in local areas, power system stability and system power quality, the consumption problem caused by the connection of wind power and photovoltaic power to the distribution network has become increasingly prominent. Power generation had to curtail a large amount of wind to maintain system stability. Affected by the characteristics of time and space, the power curve of wind-solar combined power generation has the characteristics of volatility and randomness. At the same time, considering its technical bottleneck in smoothing the output power, the direct connection of large-scale wind-solar combined power generation systems to the distribution network will still affect the distribution ne...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J3/32H02J3/00H02M3/155H01M8/18
CPCH02J3/381H02J3/32H02J3/004H02M3/155H02J7/345H01M8/188H02J2300/24H02J2300/28H02J2300/40H02J2207/50Y02E10/56Y02E10/76Y02E60/50Y02E70/30
Inventor 李蓝特古云峰高岩峰李勋陈浩舟邹大中程文辉
Owner 南方电网电动汽车服务有限公司
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