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Determination method of primary frequency regulation reserve capacity of wind storage based on quartile ratio abandoned wind method

A reserve capacity and determination method technology, applied in the direction of reducing/preventing power oscillation, AC network circuits, circuit devices, etc., can solve problems such as waste

Active Publication Date: 2021-12-14
SHENZHEN POWER SUPPLY BUREAU
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  • Claims
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Problems solved by technology

Since wind power needs to reduce load when participating in frequency regulation, the reserve capacity provided by abandoning wind will cause a certain degree of waste in the long run

Method used

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  • Determination method of primary frequency regulation reserve capacity of wind storage based on quartile ratio abandoned wind method
  • Determination method of primary frequency regulation reserve capacity of wind storage based on quartile ratio abandoned wind method
  • Determination method of primary frequency regulation reserve capacity of wind storage based on quartile ratio abandoned wind method

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Embodiment Construction

[0048] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention discloses a method for determining the reserve capacity of primary frequency regulation of wind storage based on the quartile ratio wind abandonment method, which comprises the following steps: obtaining the historical data of maximum wind power generating power in each time interval of a wind farm in a day; Arranged from small to large, using the quartile method to divide the data into four parts; give the wind curtailment ratio coefficients of the four parts respectively; calculate the total reserve capacity provided by the wind storage system; consider the current state of charge of the energy storage ( SOC), calculate the adjustment coefficient; after considering the energy storage, according to the adjustment coefficient, calculate the actual reserve capacity of the wind farm; calculate the reserve capacity provided by the energy storage. The implementation of the present invention enables wind power and energy storage to cooperate with each other to provide backup capacity.

Description

technical field [0001] The invention relates to the field of wind power primary frequency regulation reserve capacity, in particular to a wind storage primary frequency regulation reserve capacity determination method based on the quartile ratio abandoned wind method provided by the wind power storage joint. Background technique [0002] Wind power is currently the most economical and mature renewable energy power generation technology, and its penetration rate in the power grid continues to increase. However, due to the strong volatility and uncertainty of wind power, there are many problems in actual consumption. Especially in the primary frequency regulation of the power system, the use ratio of traditional thermal power units will decrease, which will lead to insufficient primary frequency regulation capability of the system. Therefore, considering wind power's participation in power system primary frequency regulation has also become a hot research direction at present...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/24
CPCH02J3/24H02J2203/20
Inventor 孙杰刘顺桂
Owner SHENZHEN POWER SUPPLY BUREAU
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