Analysis of Microgrid Operation for Distribution System Support with Different Power Purchase Agreement Terms

2021 IEEE PES/IAS PowerAfrica Pub Date : 2021-08-23 DOI:10.1109/PowerAfrica52236.2021.9543321

O. Adeyanju, L. Canha

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Abstract

Recently in the power system, different scales of micro-grid can connect to the distribution system to support the distribution system operation. However, depending on the power purchase agreement terms determined by the distribution system operator for the microgrid investors, cost of energy could become elevated, making the inclusion of distributed energy resources less attractive to some other stakeholders in terms of cost. This study presents the analysis of microgrid operation for distribution system support considering different power purchase agreement terms. A two-level approach is proposed. In the first level, the optimal capacity of the MGs is determined. The second level includes the yearly cooperation of the distribution system operator and microgrids. The decision-making of the distribution system operator and microgrids under the management of a responsible aggregator and their consequences on the distribution system customer cost of energy is analyzed. Case studies are performed on a modified IEEE 33 -Bus System. Relevant results and suggestions are provided for an effective stakeholders' participation.

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不同购电协议条件下配电网支持微电网运行分析

近年来，在电力系统中，不同规模的微电网可以接入配电系统，以支持配电系统的运行。然而，根据分配系统运营商为微电网投资者确定的购电协议条款，能源成本可能会上升，这使得分布式能源在成本方面对其他一些利益相关者的吸引力降低。本文分析了考虑不同购电协议条款的微网运行对配电网支持的影响。提出了一种两级方法。在第一层，确定mg的最优容量。第二层包括配电系统运营商和微电网的年度合作。分析了责任聚合器管理下配电系统运营商和微电网的决策及其对配电系统用户能源成本的影响。在改进的IEEE 33总线系统上进行了案例研究。为利益相关者的有效参与提供了相关的结果和建议。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2021 IEEE PES/IAS PowerAfrica

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