A double-layer strategy dispatching method for an electric power selling company

A scheduling method, a two-tier scheduling technology, applied to electrical components, circuit devices, AC network circuits, etc., can solve problems such as failure to take synergy and complementarity into account

Active Publication Date: 2019-01-18
SOUTHEAST UNIV +2
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Problems solved by technology

Current research mainly focuses on the single market behavior of energy storage or virtual power plants, failing to take into account the synergistic and complementary effects of the two; in terms of strategic scheduling, it is based on the non-failure operating state of the power grid, and does not involve the prediction of imminent failure in the power grid When the power sales company actively conducts secondary dispatch, and if the power sales company adopts a repairing strategic dispatch plan to adjust each power generation unit in time, it can greatly reduce the profit loss caused by the failure

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  • A double-layer strategy dispatching method for an electric power selling company
  • A double-layer strategy dispatching method for an electric power selling company
  • A double-layer strategy dispatching method for an electric power selling company

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Embodiment Construction

[0054] Such as figure 1 , the two-tier strategy scheduling method for electricity sales companies in this embodiment includes the following steps:

[0055] Step 1) Construct a two-tier dispatching model that can be used in the day-ahead market by fusing the grid-level energy storage model and the virtual power plant model.

[0056] Step 2) Taking the two-tier dispatching model as the core and combining fault prediction technology to form a strategic dispatching model with repairing properties applicable to the intraday market after taking into account the impact of power failures.

[0057] Step 3) Converting the bi-level scheduling model into a mixed integer programming form for solution.

[0058] The construction of the two-layer strategy scheduling model in this embodiment includes: constructing the upper-level objective function to represent the daily income of the electricity sales company;

[0059] Construct the lower-level objective function, which numerically represen...

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Abstract

The double-layer strategy dispatching method for the electric power selling company comprises the following steps: step 1) constructing a double-layer dispatching model which can be used in the day-ahead electric power market by integrating a grid-level energy storage model and a virtual power plant model; 2) combining that two-layer dispatching model as the core and the fault prediction technology to form a strategy dispatch model with repair property which is applicable to the intra-day power market after the influence of the power fault is taken into account; 3) converting that double-layerdispatching model into a mixed integer program form for solution. The beneficial effect: the market behavior of the grid-level energy storage power station and the virtual power station is consider,and the profit after the power selling company adopts the secondary strategy dispatching with the repairing property under the scenario of the grid fault prediction can be simultaneously evaluated.

Description

technical field [0001] The invention relates to the technical field of electric power system dispatching, in particular to a two-layer strategy dispatching method for electricity sales companies. Background technique [0002] Renewable energy contains a lot of uncertainty, which puts forward new requirements for the safe and stable operation of the power grid. Some small-scale renewable energy not only cannot provide a stable power supply to the grid, but also cannot participate in the current power market operation well due to their own scale limitations. [0003] For the current problems, the use of energy storage technology and virtual power plant technology can effectively solve them. On the one hand, with the performance improvement and cost reduction of energy storage batteries, energy storage power stations have developed to the grid level. Due to their flexible charging and discharging characteristics, energy storage power stations can significantly play the role of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J13/00H02J3/38
CPCH02J3/382H02J13/0006H02J3/00H02J2203/20Y04S10/12Y02E40/70
Inventor 韩海腾宗炫君樊安洁周洪伟黄俊辉谈健谢珍建吴晨
Owner SOUTHEAST UNIV
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