Real Power Coordination Between Active Distribution Systems and Main Grid

doi:10.7652/xjtuxb201411010

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Real Power Coordination Between Active Distribution Systems and Main Grid

更新时间：2025-07-09

- Real Power Coordination Between Active Distribution Systems and Main Grid
- Vol. 48, Issue 11, Pages: 58-63(2014)
- 作者机构：
  
  西安交通大学电力设备与电气绝缘国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201411010
  CLC： TM73
- Online First：10 November 2014，
  
  Published：2014
- 稿件说明：
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Real Power Coordination Between Active Distribution Systems and Main Grid[J]. 2014, 48(11): 58-63.
DOI：

Real Power Coordination Between Active Distribution Systems and Main Grid[J]. 2014, 48(11): 58-63. DOI： 10.7652/xjtuxb201411010.

摘要

针对现有主动配电系统优化运行研究局限于主动配电网内部而忽略了其与主网间联系的问题

提出了一种主动配电网与主网的有功协调方法。基于奔德斯分解将协调调度问题转化为分层优化问题

在上层实施发电调度优化主网运行

在下层调度分布式能源优化主动配电系统运行。通过上下层协调迭代

考虑主动配电系统运行策略对主网运行的影响

实现主动配电系统和主网间的有功协调。改编的IEEE-RTS算例表明:主动配电系统的运行策略会对主网运行产生显著影响

甚至导致主网运行计划无解

在研究和运行中需要考虑二者的协调; 限制馈线功率波动的策略能保证主网运行计划有解

但经济性较差; 所提的有功协调方法可行、有效

能显著提升全系统的经济性与安全性

可将算例系统的生产成本由638 326.62美元降至626 011.45美元。

Abstract

In the existing studies

the operation of the active distribution network(ADN)is optimized within itself and the relation between ADNs and the main grid are neglected. In this paper

a method is proposed to solve this problem and coordinate the real power operation of the main grid and ADNs. By Benders decomposition

the cooperative dispatch is reformed as a bi-level problem. On the upper level the centralized generation is scheduled and the main grid operation is optimized

while on the lower level the distributed energy resource(DER)is dispatched to minimize the ADN operation cost. The influence of ADNs on the main grid is considered and the cooperation between them are realized by the cooperative iterations of the levels. The case studies on the modified the IEEE-RTS have verified the following. Firstly

the ADN operation exerts a great effect on that of the main grid and it is necessary to consider the coordination between them. Secondly

the strategies may heighten the operation cost to constraint the fluctuation range of the feed power. Finally

the proposed method enables to feasibly improve the economics and security of the whole power system

and the operation cost of the modified IEEE-RTS is decreased from 638326.62$ to 626011.45$.

关键词

Keywords

references

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