Source-storage-network coordination planning method considering energy storage comprehensive income

A technology of comprehensive income and power planning, applied in resources, market data collection, market forecasting, etc., can solve the problem of difficult or less configuration of energy storage, high cost of energy storage, participation of energy storage in auxiliary services and imperfect and clear operation mode, etc. question

CN113065981AActive Publication Date: 2021-07-02NORTHEAST DIANLI UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-07-02

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Abstract

The invention relates to a source-storage-network coordination planning method considering energy storage comprehensive income, which is characterized by comprising the following steps of: dividing into two branches according to annual load and wind power data of a planning target, one branch not including an energy storage system in terms of 0.18; the other branch is source-storage-network coordinated planning containing energy storage. The method comprises the steps of 1, formulating a dynamic time-of-use electricity price of each typical day scene based on wind power and load data; 2, giving an energy storage configuration initial value; 3, performing power supply planning under the new planning boundary to obtain power supply planning construction cost CYN; 4, carrying out subtraction on variables such as power supply planning cost, power grid planning cost, wind curtailment cost and network loss cost obtained by the two branches based on a difference value method; and revising energy storage configuration, returning to the second step, and repeating the above steps to finally obtain an optimal scheme of source-storage-network coordination planning considering energy storage comprehensive benefits.
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Description

technical field

[0001] The invention relates to the field of source-storage-network coordinated planning in high-proportion renewable energy grid-connected, and is a source-storage-network coordinated planning method based on consideration of energy storage comprehensive benefits. Background technique

[0002] Energy storage has many technical characteristics such as energy throughput, controllability, and flexible installation. Its large-scale application can better solve the problem of system flexibility imbalance after a high proportion of renewable energy is connected. The key technology of the energy power system is the "necessity" of the future high proportion renewable energy power system.

[0003] At present, most of the planning and research work involving energy storage configuration, in the planning model, the role of energy storage is single, and the optimal configuration of energy storage is carried out with the goal of achieving a certain technical index or the...

Examples

Embodiment Construction

[0030] A source-storage-network coordinated planning method considering comprehensive benefits of energy storage, characterized in that it includes the following steps:

[0031] (1) According to the planning target annual load and wind power data, first calculate 0.18 without the energy storage system, carry out power supply planning and grid planning with the original planning boundary, and obtain the planned construction cost C of the power supply side and the grid side Y 、C T , and then obtain wind curtailment cost C through production sequence simulation Q and network loss cost C L .

[0032]

[0033] In the formula, C Y Planning investment costs for raw boundary power; C YN The investment cost of power planning after energy storage is put into use; G k 0–1 variable for the investment of thermal power unit k; P gk is the installed capacity of unit k; C gk is the unit installation cost of unit k; Ω g Set for candidate groups.

[0034]

[0035] In the formula,...