Analysis of Economic Influence Factors in Wind-Photovoltaic-Storage Microgrid

被引：0
|
作者：
Xie H. [1 ,2 ]
Teng X. [1 ,2 ]
Zhang Y. [1 ,2 ]
Zheng T. [3 ]
Chen L. [3 ]
机构：
[1] School of Electrical Engineering, Beijing Jiaotong University, Beijing
[2] National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing
[3] Department of Electrical Engineering, Tsinghua University, Beijing
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2019年 / 43卷 / 06期
关键词：
Economics; Energy storage; Influence coefficient; Microgrid;
D O I：
10.7500/AEPS20180201004
中图分类号：
学科分类号：
摘要：
The wind-photovoltaic-storage microgrid is an effective solution which achieves complementary advantages and efficient usage of distributed sources. However, many factors affect the economics with various influence degrees. The criticality of economic factors is quantified and analyzed in the wind-photovoltaic-storage microgrid. Based on the analysis of operation mode, the economic model of microgrid planning is built. The model is aimed at optimal annual net profit considering the operation characteristics of micro-sources, the power balance between the microgrid and the utility grid as well as the reliability constraints. Also, the evaluation indices of economic operation are established. On this basis, economic factors in both planning and operation aspects are quantified by calculating the influence coefficients. A practical microgrid in Yunnan Province is used as case study. The analysis results show that the rational allocation of energy storage can improve the economics of microgrid planning, and the key economic factors of wind-photovoltaic-storage microgrid include the equivalent life cycles of energy storage, the unit investment cost of wind generators and the discount rate on the planning level, and the energy supplied, unit electricity price as well as unit environmental benefit of wind power and photovoltaic generation on the operation level. © 2019 Automation of Electric Power Systems Press.
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页码：70 / 76and115
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