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Diversified energy automatic generation control method considering wind power acceptance

A technology of automatic power generation control and wind power acceptance, which is applied in the field of power system, can solve the problems of not considering the performance of wind turbines, the inability to realize multi-acceptance of wind power, and the lack of coordination and cooperation of various energy sources, so as to achieve multi-acceptance of wind power output, reduce frequency modulation backup, Reduce the effect of curtailment

Active Publication Date: 2013-11-13
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method does not consider the performance of wind turbines, and lacks the coordination and cooperation of various energy sources. It cannot achieve the purpose of receiving more wind power, nor can it fundamentally solve the impact of wind power uncertainty on the active frequency regulation of the grid.

Method used

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  • Diversified energy automatic generation control method considering wind power acceptance
  • Diversified energy automatic generation control method considering wind power acceptance
  • Diversified energy automatic generation control method considering wind power acceptance

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Experimental program
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Effect test

Embodiment

[0101] Taking a certain provincial power grid model as an example, the correctness of the method of the present invention is verified. In the power grid model, hydropower accounts for 13%, thermal power accounts for 70%, and wind power accounts for 17%, all of which participate in AGC regulation. Divide all the AGC units into three categories, wind turbines alone as one category; 20% of the thermal power units have better regulation performance, and they are regarded as "excellent" units together with hydroelectric units; the rest of the thermal power units are regarded as "secondary" Often" unit. The proportions of the three types of units are shown in Table 1:

[0102] Table 1 Proportion of various units

[0103] Unit type

Proportion

wind power

17％

Excellent

27％

Secondary

56％

[0104] The daily load forecast curve is as figure 2 As shown, the relevant parameters for calculating ACE are shown in Table 2:

[0105] Tab...

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Abstract

The invention relates to the field of electric power systems, and particularly to a diversified energy automatic generation control method considering wind power acceptance. The method comprises the following steps: classifying units according to different AGC adjustment performances and unit types, and dividing load changing tendencies (rising / declining / stable) by combining with a load prediction result; calculating an area control error ACE of a current region, and defining a zone (dead zone / help zone / secondary emergency zone / emergency zone) which the area control error ACE of the current region belongs to; and adopting different ACG adjustment tactics according to the differences of the load tendencies and ACEs. The method conducts classification on all units; the units match with each other to carry out the water-fire-wind combined automatic generation control; the frequency adjustment ability of a system is fully excavated to lower the frequency regulation reserve of the system; and the purpose of more accepting the wind power output is realized while the control quality is ensured.

Description

technical field [0001] The invention relates to the field of power systems, in particular to an automatic power generation control method for multiple energy sources considering wind power acceptance. Background technique [0002] With the rapid development of the economy and the continuous improvement of people's living standards, the country and society's demand for electricity is also increasing. Due to the huge pressure on resources and the environment of traditional thermal power-based power generation technologies, clean energy power generation technologies represented by wind power have become a hot spot in the development of the power industry. The integration of large-scale wind power puts forward higher requirements for the stability and control of the power grid. Due to the strong randomness of wind power, this causes the fluctuation characteristics of wind power output changes. The operation of the power system needs to ensure the real-time balance of power gen...

Claims

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Application Information

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IPC IPC(8): H02J3/38
CPCY02E10/763Y02E10/76
Inventor 于汀蒲天骄李强邵广慧韩巍范征杜佳桐吴新景王伟李群金元杨宁
Owner STATE GRID CORP OF CHINA
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