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Power distribution network multi-objective planning method

A technology of multi-objective planning and distribution network planning, which is applied in the field of multi-objective planning of distribution network, can solve the problems of lack of convincingness of the planning model and single goal, and improve the reliability of the power grid and the quality of power supply. The method is simple, practical and powerful. Effect of practical application background and engineering value

Active Publication Date: 2019-12-13
GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology

[0004] In order to overcome the problem that the target considered in the existing distribution network planning is too single and the proposed planning model is not convincing, the present invention provides a multi-objective planning method for the distribution network, which is simple and practical, and improves the reliability of the power grid and the quality of power supply , with strong practical application background and engineering value

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Embodiment 1

[0071] like figure 1 As shown, a distribution network multi-objective planning method, the distribution network multi-objective planning method is based on the energy storage operation strategy in the market environment, including the following steps:

[0072] S1: Establish a comprehensive evaluation system for distribution network planning considering multi-index evaluation;

[0073] S2: Analyze the energy storage operation strategies of different investment entities in the market environment;

[0074] S3: Establish a multi-objective optimization model for distribution network distributed energy planning based on the distribution network planning comprehensive evaluation system;

[0075] S4: Based on the improved particle swarm optimization algorithm, the multi-objective optimization model for distributed energy planning of the distribution network is solved to obtain an optimized multi-objective planning scheme for the distribution network.

[0076] The distribution networ...

Embodiment 2

[0124]On the basis of Embodiment 1, the distribution network multi-objective planning method in Embodiment 1 is used as an example, and the topology of "2 supplies and 1 backup" medium-voltage distribution network is used for simulation analysis. The simplified diagram of the topology is as follows Figure 4 As shown, the nodes to be selected for DER are L3, L5, L8, L14, L16, and L21, and the electricity price data of economic index design in the model are as follows Figure 5 shown.

[0125] In order to analyze the impact of different energy storage investment entities on the planning results in the market environment, two planning schemes are designed:

[0126] Scenario 1: Assuming that the power grid company is the main investor, its interests include the direct and indirect benefits brought by DER. The direct benefits include electricity sales and subsidy benefits, and the indirect benefits include loss reduction benefits, delayed power grid transformation benefits, and en...

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Abstract

The invention relates to a power distribution network multi-objective planning method, which is based on an energy storage operation strategy in a market environment, and comprises the following steps: S1, establishing a power distribution network planning comprehensive evaluation system considering multi-index evaluation; S2, analyzing energy storage operation strategies of different investment subjects in the market environment; s3, establishing a power distribution network distributed energy planning multi-objective optimization model based on the power distribution network planning comprehensive evaluation system; and S4, solving the power distribution network distributed energy planning multi-objective optimization model based on an improved particle swarm algorithm to obtain an optimized power distribution network multi-objective planning scheme. The multi-objective planning method of the power distribution network is simple and practical, improves the reliability and power supply quality of the power grid, and has strong practical application background and engineering value.

Description

technical field [0001] The invention relates to the technical field of distribution network planning, in particular to a distribution network multi-objective planning method. Background technique [0002] With the development of a new round of power system reform, social capital participates in the investment and construction of the distribution network, and a large number of distributed energy sources represented by wind power, photovoltaics and energy storage are connected to the distribution network. new challenges. The access of DER makes the distribution network change from one-way power flow to two-way power flow, and the operation and management mode under the traditional distribution network mode is no longer applicable. A large number of DERs are connected to the distribution network, which brings unprecedented challenges to the system economy and security. In order to ensure the economy, safety and stability of the system in the process of distribution network pl...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/06393G06Q50/06Y02P90/82
Inventor 王世龙阳细斌宋双商刘上嘉林清华王彦波唐晓军谢其锋古耀全曾挺郑华敖进财谢涛
Owner GUANGDONG POWER GRID CO LTD
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