An analysis method for power grid curtailment under the constraints of peak regulation during heating period

An analysis method and technology for the heating period, applied in data processing applications, instruments, calculations, etc., can solve problems such as high heat load, reduced system flexibility, and aggravated wind curtailment problems

Active Publication Date: 2020-07-24
NORTHEAST DIANLI UNIVERSITY +1
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Problems solved by technology

In the "Three North" region, the heat load is high and the electricity load is low. During the heating period in winter, the operation mode of cogeneration units that "constantly determines electricity by heat" reduces the flexibility of the system, and the space for wind power acceptance in the power grid is reduced, which further exacerbates the problem of wind curtailment.

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  • An analysis method for power grid curtailment under the constraints of peak regulation during heating period
  • An analysis method for power grid curtailment under the constraints of peak regulation during heating period
  • An analysis method for power grid curtailment under the constraints of peak regulation during heating period

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Embodiment Construction

[0078] The present invention will be described in detail below using the drawings and embodiments.

[0079] The method for analyzing the situation of power grid abandoned wind under the constraints of peak shaving during the heating period of the present invention starts with the statistics of the amount of abandoned wind, and grasps the characteristics and laws of abandoned wind from a statistical perspective; from the perspective of power grid operation, it establishes a heating period under a specific power supply ratio structure The regional power grid dispatching model analyzes the impact of cogeneration unit peak shaving margin on wind power grid space from the perspective of peak shaving, and quantitatively analyzes the impact of wind power penetration rate, thermal load and electric load ratio on curtailed wind accommodation. The specific contents include:

[0080] 1) Abandoned Wind Mechanism Analysis and Abandoned Wind Statistics

[0081] (a) Mechanism of power grid c...

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Abstract

The invention relates to a grid wind-abandoning situation analysis method under heat supply period peak regulation constraint. The method is characterized by grasping a wind-abandoning characteristic and rule from a statistic point of view based on wind-abandoning power amount statistic; establishing a heat supply regional power grid scheduling model under a specific power supply proportion structure from a grid operating point of view; analyzing the influence of the peak regulation margin of a cogeneration unit on wind power grid connection space from a peak regulation point of view, quantitatively analyzing wind power penetration rate, and the influence of heat load and electric load ratio on the wind-abandoning admit. The method is scientific and reasonable, good in applicability and good in effect.

Description

technical field [0001] The invention relates to the technical field of wind power generation, and relates to a method for analyzing the situation of abandoned wind in a power grid under the constraints of peak regulation during a heating period. Background technique [0002] my country's wind energy resources are abundant and concentrated, suitable for large-scale development. At the end of 2016, the accumulative grid-connected installed capacity of wind power across the country was 149 million kilowatts, accounting for 9% of the total installed capacity of power generation, and the wind power generation accounted for 4% of the total power generation. The development of wind power still has great potential. However, with the rapid development of wind power, due to the randomness of wind power and the characteristics of anti-peak regulation, the phenomenon of wind abandonment is serious. In 2016, the national abandoned wind power was 49.7 billion kWh. The abandoned wind rate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06312G06Q10/06315G06Q10/067G06Q50/06
Inventor 李军徽邢志同穆钢严干贵范兴凯
Owner NORTHEAST DIANLI UNIVERSITY
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