一种面向精益化降损需求的源网荷储多阶段协调规划方法

By employing a multi-stage coordinated planning approach, and combining source-grid-load-storage decision variables and optimization models, the problem of relying on a single method to reduce distribution network losses was solved. This approach achieved lean loss reduction and dynamic improvement of the grid structure, ensuring the safe and economical operation of the distribution network.

CN116402274BActive Publication Date: 2026-07-17NANJING UNIV OF SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Filing Date
2023-03-02
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing methods for reducing losses in distribution networks are limited and lack precision, making it difficult to understand the distribution mechanism of line losses. Furthermore, there are adverse effects when multiple methods are used for collaborative loss reduction.

Method used

A multi-stage coordinated planning method is adopted. By traversing nodes and lines, multiple types of load node sets and line datasets are generated. Multi-stage typical scenarios are constructed, source-grid-load-storage decision variables are determined, and the minimum line loss of the distribution network panorama is used as the objective function. Combined with electrical constraints and investment amount constraints, a second-order cone relaxation convex optimization model is used to solve the problem.

Benefits of technology

This approach enables lean loss reduction in distribution networks by coordinating source, grid, load, and storage resources, while maintaining a limited investment amount. It also improves the dynamism and scalability of the network structure, ensures safe and economical operation, and reduces line losses.

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Abstract

本发明提供一种面向精益化降损需求的源网荷储多阶段协调规划方法,遍历区域内全部节点和线路,生成多类型节点集和线路数据集;基于典型场景规划法,通过采集分布式电源、负荷、充电汽车等典型日时段数据构建规划场景;确定源网荷储决策变量,包括分布式电源的决策变量、储能决策变量、充电桩的决策变量、线路的决策变量;以配电网全景最小线损为目标函数,结合电气约束条件和投资金额约束条件构建源网荷储多阶段协调规划模型,通过二阶锥松弛凸优化模型并求解。本发明的规划方法能够在投资金额有限的前提下,通过协调规划源网荷储等资源,并计及多阶段间关联建设,基于区域可靠供电和配网安全运行,实现精益化降损需求。
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