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A multi-time scale wind-storage combined system optimal scheduling method

A multi-time-scale, combined wind-storage technology, applied in system integration technology, information technology support systems, wind power generation, etc., can solve the problem that the optimization results of the combined wind-storage system cannot meet the dispatching requirements of the power grid, and the acceptance capacity of the combined wind-storage system is not considered and scheduling requirements, wind curtailment economics and other issues, to achieve the effect of increasing wind farm revenue, improving friendliness, and reducing wind curtailment rate

Active Publication Date: 2022-06-21
ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER
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Problems solved by technology

[0005] At present, most of the research on the combined wind-storage system is considered from the single aspect of the combined wind-storage system, and does not consider the capacity and scheduling requirements of the grid for the combined wind-storage system, which may cause the optimization results of the combined wind-storage system to fail to meet the grid dispatching requirements , causing risks such as wind curtailment and economic decline

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  • A multi-time scale wind-storage combined system optimal scheduling method
  • A multi-time scale wind-storage combined system optimal scheduling method
  • A multi-time scale wind-storage combined system optimal scheduling method

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Embodiment Construction

[0089] The invention proposes a multi-time-scale wind-storage combined system optimization scheduling method. All scheduling models in the method take 15 minutes as a time interval, so a typical operating day includes T=96 time periods. The optimal scheduling method for a multi-time-scale wind-storage combined system includes the following steps:

[0090] (1) Generate dispatching instructions for the grid-side wind-storage combined system

[0091] From the perspective of the power grid company, as the access party of the wind-storage combined system, in order to ensure the safe and stable operation of the power grid and achieve the best effect of the wind-storage system entering the grid, the safe and stable operation of the system is constrained to maximize the penetration of wind power into the grid, thereby Generate dispatching instructions for the grid-side wind-storage combined system. Among them, the grid operation constraints include:

[0092] (1-1) Node Power Balance...

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Abstract

The present invention overcomes the deficiencies in the prior art, and provides a multi-time scale wind-storage combined system optimization dispatching method. On the basis of considering grid channel blockage, the wind-storage combined system revenue is optimized, which can greatly reduce the wind curtailment rate, Improve the income of wind farms and ensure the safe and stable operation of the power grid; establish a coordination scheduling model that comprehensively considers the dispatching command requirements on the grid side and the power generation plan on the wind-storage combined system side, thereby improving the friendliness of the wind-storage combined system connected to the grid and improving Reduce the level of abandoned wind while being economical; the invention considers the safe and stable operation of the power grid. The two-stage optimal dispatching model of the combined wind storage system constitutes a linear programming and a mixed integer linear programming problem, which can be efficiently solved by mature commercial software; the invention can be widely used in Energy Economics Computing Field.

Description

technical field [0001] The invention relates to an optimal scheduling method for a multi-time-scale wind-storage combined system, belonging to the technical field of energy economic computing, and in particular to an optimal scheduling method for a multi-time-scale wind-storage combined system that comprehensively considers day-ahead wind power prediction and ultra-short-term wind power prediction. Background technique [0002] The shortage of fossil energy and environmental pollution have caused widespread concern in our society. The large-scale development of renewable energy is an important way for my country to optimize and adjust the energy structure and achieve low-carbon development. According to the Outline of the National Medium- and Long-Term Science and Technology Development Plan, wind power, photovoltaics and other renewable energy power generation have been developed and applied at a high speed and on a large scale. As one of the most technologically mature ne...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/46H02J3/32G06Q10/06G06Q50/06G06Q10/04
CPCH02J3/466H02J3/32G06Q10/06312G06Q50/06G06Q10/04H02J2300/28H02J2203/20Y02E40/70Y04S10/50
Inventor 张敏常潇王金浩樊瑞魏韡李冉
Owner ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER
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