Multi-time-scale wind storage combined system optimization scheduling method

A multi-time-scale, wind-storage combination technology, applied in system integration technology, information technology support systems, wind power generation, etc., can solve the problems of wind-storage combined system optimization results that cannot adapt to grid scheduling requirements, decline, and wind abandonment economy.

Active Publication Date: 2020-10-13
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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  • Multi-time-scale wind storage combined system optimization scheduling method
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  • Multi-time-scale wind storage combined system optimization scheduling method

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Embodiment Construction

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

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

[0091] From the perspective of the power grid company, the power grid, 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 connected to the grid, is bound by the safe and stable operation of the system to maximize the grid-connected penetration of wind power, thereby Generate dispatching instructions for the grid side wind-storage combined system. Among them, grid operation constraints include:

[0092] (1-1)...

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Abstract

In order to overcome defects in the prior art, the invention provides a multi-time-scale wind storage combined system optimization scheduling method, which optimizes the income of a wind storage combined system on the basis of considering the blockage of a power grid channel, thereby greatly reducing the wind curtailment rate, improving the income of a wind power plant, and ensuring the safe and stable operation of a power grid. A coordinated scheduling model comprehensively considering the power grid side scheduling instruction requirement and the wind storage combined system side power generation plan is established, so that the friendliness of the wind storage combined system connected to the power grid is improved, and the wind abandoning level is reduced while the economical efficiency is improved; according to the method, the two-stage optimization scheduling model of the wind storage combined system considering safe and stable operation of the power grid forms linear programmingand mixed integer linear programming problems, and the problems can be efficiently solved by mature commercial software; the method can be widely applied to the field of energy economy calculation.

Description

technical field [0001] The invention relates to an optimal scheduling method for a multi-time scale wind-storage combined system, which belongs to the technical field of energy economic calculation, and in particular relates 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 aroused widespread concern in our society. The large-scale development of renewable energy is an important way for my country to realize the optimization and adjustment of energy structure and realize low-carbon development. According to the "National Medium and Long-Term Science and Technology Development Plan", wind power, photovoltaic and other renewable energy power generation have been developed and applied at a high speed and on a large scale. Wind power is one of the ...

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Application Information

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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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