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Method and system for evaluating flexibility demand of power system

A power system and flexibility technology, applied in the field of assessment of power system flexibility needs, can solve problems such as inaccurate and incomplete assessment results

Active Publication Date: 2019-08-16
YUNNAN POWER GRID
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  • Application Information

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Problems solved by technology

[0004] This application provides a method and system for assessing flexibility requirements of power systems to solve the technical problem of inaccurate and incomplete assessment results of flexibility requirements for power systems including wind power in the prior art

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  • Method and system for evaluating flexibility demand of power system
  • Method and system for evaluating flexibility demand of power system
  • Method and system for evaluating flexibility demand of power system

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Embodiment Construction

[0064] In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described The embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present application.

[0065] see figure 1 , which is a schematic flowchart of a method for evaluating a flexibility requirement of a power system provided by an embodiment of the present invention. combine figure 1 As shown, the evaluation method for the flexibility requirement of the power system provided by this application incl...

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Abstract

The application discloses a method and a system for evaluating the flexibility demand of a power system. The method includes the following steps: acquiring the index data values of the power supply side and the load side in a power system; calculating and storing the flexibility demand evaluation indexes of the power supply side according to the index data values of the power supply side; calculating and storing the flexibility demand evaluation indexes of the load side according to the index data values of the load side; and evaluating the flexibility demand grade of the power supply side according to the flexibility demand evaluation indexes of the power supply side to obtain the flexibility demand evaluation result of the power supply side, and calculating the flexibility demand evaluation result of the load side in a similar way. According to the application, the flexibility demand of the power system is evaluated from the power supply side and the load side, and factors such as wind power output fluctuation, wind power prediction error, load output fluctuation and load prediction error are considered. Therefore, comprehensive evaluation of the flexibility demand of a power system including wind power is realized, an important basis is provided for matching the power supply with corresponding flexibility resources, and the safe operation of the power system is benefited.

Description

technical field [0001] The present application relates to the technical field of power systems, and in particular, to a method and system for evaluating flexibility requirements of a power system. Background technique [0002] Under the reform of electricity marketization, large-scale renewable energy is growing rapidly, and more and more are connected to the future power system. Wind power will become one of the important pillars of power supply. At the same time, due to the inherent volatility and randomness of wind power, conventional units are adjusted more frequently, even starting and stopping, and the adjustment depth is also greatly increased, which brings great challenges to the safe operation of the power system. The flexibility demand assessment of a large-scale wind power system is of great significance for the power system to match the corresponding flexibility resources and to operate safely and stably. [0003] At present, the flexibility demand assessment of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/38G06Q10/06G06Q50/06
CPCH02J3/386H02J3/00G06Q10/0639G06Q50/06H02J3/003H02J2203/20Y04S10/50
Inventor 刘宝林车泉辉张苏彭元杨印浩冯磊马龙飞程军照
Owner YUNNAN POWER GRID
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