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计及多约束的多分布式电源接入配电网最大承载力分段算法
Segmentation Algorithm for Maximum Hosting Capacity of Distributed Generator Accessing to Distribution Network Considering Multiple Constraints
- 电力系统自动化-方正平台 2020年44卷第4期 页码：72-80
- 作者机构：
1. 重庆大学电气工程学院，重庆市 400044
2. 国网湖北省电力有限公司武汉供电公司，湖北省武汉市 430012
3. 重庆星能电气有限公司，重庆市 400039
- 作者简介：
谭笑(1995—)，女，通信作者，硕士研究生，主要研究方向：电力系统规划、运行与可靠性。E-mail：381108932@qq.com
王主丁(1964—)，男，教授，IEEE高级会员，主要研究方向：电力系统规划、运行与可靠性。E-mail：348402467@qq.com
李强(1978—)，男，高级工程师，主要研究方向：电网规划。E-mail：68302526@qq.com
- 基金信息：
DOI：10.7500/AEPS20190610004
中图分类号：收稿日期：2019-06-10，
修回日期：2019-09-17，
网络出版日期：2019-12-24，
纸质出版日期：2020-02-25
- 稿件说明：
移动端阅览
谭笑,王主丁,李强等.计及多约束的多分布式电源接入配电网最大承载力分段算法[J].电力系统自动化,2020,44(04):72-80.
TAN Xiao,WANG Zhuding,LI Qiang,et al.Segmentation Algorithm for Maximum Hosting Capacity of Distributed Generator Accessing to Distribution Network Considering Multiple Constraints[J].Automation of Electric Power Systems,2020,44(04):72-80.
谭笑,王主丁,李强等.计及多约束的多分布式电源接入配电网最大承载力分段算法[J].电力系统自动化,2020,44(04):72-80. DOI： 10.7500/AEPS20190610004.
TAN Xiao,WANG Zhuding,LI Qiang,et al.Segmentation Algorithm for Maximum Hosting Capacity of Distributed Generator Accessing to Distribution Network Considering Multiple Constraints[J].Automation of Electric Power Systems,2020,44(04):72-80. DOI： 10.7500/AEPS20190610004.
摘要
分布式电源（DG）大量并网给电能质量带来风险，评估DG接入配电网的最大承载力对DG规划具有指导意义。建立了多DG接入配电网承载力评估的优化模型：目标为DG并网容量最大，约束涉及电压偏移、电压波动、短路电流和继电保护的相关技术标准。针对该模型，提出了基于约束指标相对于DG容量灵敏度的单约束和多约束协调分段计算方法。基于不同的DG初始值，分段计算可分别采用倒推和顺推2种计算流程进行。最后计算分析了辐射型配电网在多约束多个不同类型DG情况下的系统最大承载力，表明了所提方法在计算精度和效率方面的优越性。
Abstract
The integration of large number of distributed generators (DGs) brings risks to the power quality of the network which they are connected to. Thus it is instructive for DGs planning to evaluate the maximum hosting capacity of DGs accessing to a distribution network. An optimization model for evaluating the hosting capacity of the distribution network with DGs access is established. In the model
the objective is to maximize the grid-connected capacity of DGs
and the constraints involve the technical standards of voltage deviation
voltage fluctuation
short-circuit current and relay protection. Based on the sensitivity of a constraint index to DG capacity
a single-constraint segmentation algorithm and a multi-constraint coordination segmentation algorithm are proposed for the model. Based on different initial values of DG capacities
the segmentation algorithms can be carried out in backward and forward methods
respectively. Finally
the maximum hosting capacity of a radial distribution network is computed and analyzed with multiple constraints
multiple sources and multiple DG types
which shows the superiority of the proposed algorithms in the calculation accuracy and efficiency.
关键词
Keywords
references
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