分时电价下多微电网与微电网群运营比较

宁文琴; 杨淑霞

doi:10.16513/j.2096-2185.DE.2106540

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分布式能源 ›› 2021, Vol. 6 ›› Issue (5) : 10-17. DOI: 10.16513/j.2096-2185.DE.2106540

学术研究

分时电价下多微电网与微电网群运营比较

宁文琴 ¹ ,
杨淑霞 ¹^,²

作者信息 +

Operation Comparison of Multi-Microgrid and Microgrid Group Under Time-of-Use Electricity Price

Wenqin NING ¹ ,
Shuxia YANG ¹^,²

Author information +

文章历史 +

摘要

区域多微电网选择合理的运营方式是微电网系统良性持续发展的关键。以微电网运营商最大化收益为目标，构建了分时电价下，多个微电网以多微电网模式运营时的收益模型和以微电网群模式运营时的收益模型。然后以3个微电网为例进行仿真计算，得到在一个典型日内微电网群运营收益比多微电网运营收益增加12%，并且以微电网群模式运营时，整个系统向外部电网购电功率减少35%，售电功率减少49%，储能系统利用率得到有效提高。结果表明：多个微电网采取群模式运营可有效减少对电网的依赖性；降低单个微电网因频繁上下网对电网造成的冲击；提高可再生能源利用率。研究成果为区域多微电网运营决策提供了参考。

Abstract

The key to the sustainable development of regional multi microgrid system is to choose a reasonable operation mode. With the goal of maximizing the profit of microgrid operators, the profit model of multi-microgrid mode and microgrid group mode are constructed under time-of-use (TOU) electricity price. Then, three microgrids are taken as examples for simulation calculation, and the results show that in a typical day, the operating profit of microgrid group is 12% higher than that of multi-microgrid. In addition, under the microgrid group operation mode, the power purchased by the whole system from the external power grid is reduced by 35%, and the power sold is reduced by 49%, and the utilization rate of energy storage system (ESS) is effectively improved. The results show that: when multiple microgrids adopt the group operation mode, it can effectively reduce its dependence on the grid; reduce the impact on the grid caused by frequent access to the grid; improve the utilization rate of renewable energy. The research results provide a reference for the operation decision of regional multi-microgrids.

导出引用

宁文琴, 杨淑霞. 分时电价下多微电网与微电网群运营比较[J]. 分布式能源. 2021, 6(5): 10-17 https://doi.org/10.16513/j.2096-2185.DE.2106540

Wenqin NING, Shuxia YANG. Operation Comparison of Multi-Microgrid and Microgrid Group Under Time-of-Use Electricity Price[J]. Distributed Energy Resources. 2021, 6(5): 10-17 https://doi.org/10.16513/j.2096-2185.DE.2106540

中图分类号： TM73

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