A Source-Storage-Grid Coordinated Planning Method Considering the Comprehensive Benefits of Energy Storage

A technology for comprehensive income and power planning, applied in resources, market data collection, data processing applications, etc., can solve problems such as difficult quantitative accounting, difficult identification of income, energy storage participation in auxiliary services and imperfect and clear operating modes, etc.

CN113065981BActive Publication Date: 2022-04-26NORTHEAST DIANLI UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2022-04-26

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Abstract

The present invention is a source-storage-network coordinated planning method considering the comprehensive income of energy storage. Energy storage system not included. Another branch is source-storage-grid coordinated planning with energy storage. The first step is to formulate the dynamic time-of-use electricity price for each typical daily scenario based on wind power and load data; the second step is to give the initial value of energy storage configuration; the second step Three-step power supply planning under the new planning boundary to obtain the power supply planning construction cost C YN In the fourth step, based on the difference method, the variables such as power supply planning cost, power grid planning cost, wind curtailment cost, and network loss cost obtained by the two branches are made difference; after completing the energy storage configuration, go back to the second step, repeat the above steps, and finally get The optimal scheme of source-storage-network coordination planning considering the comprehensive benefits of energy storage is proposed.
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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,...