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Robust optimization framework for dynamic distributed energy resources planning in distribution networks

机译：配电网动态分布式能源规划的鲁棒优化框架

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摘要

This study relies on a dynamic reliability-based model for distributed energy resources (DER) planning in electric energy distribution networks (EEDN) with the aim of maximizing the profit of EEDN companies by increasing income and reducing costs. Load uncertainty is considered in the proposed planning model and the robust optimization (RO) approach is employed to cope with the uncertainty. The developed methodology is illustrated using real-world voltage-dependent load models, including residential, commercial and industrial types. These load models are used in evaluating the reliability cost and energy selling for customers. The reliability cost is calculated based on the total unsupplied load after an outage. Furthermore, a new modified harmony search algorithm is proposed to solve the formulated robust dynamic DER planning problem. The solution of the proposed optimization model provides the size, location, and power factor of DER. Furthermore, the need for transformers or lines upgrades and the best year for DER installation are other decision variables determined by the model. The effectiveness and capability of the developed model have been demonstrated with the aid of a case study based on a typical EEDN. The obtained results indicate that installing DER in EEDNs can relieve congestion on feeders; therefore, it can mitigate or defer upgrade investment. Moreover, if carefully planned, other benefits of DER integration such as reliability improvement and energy loss reduction can be achieved.
机译：这项研究基于电力分配网络（EEDN）中基于动态可靠性的分布式能源资源（DER）规划模型，旨在通过增加收入和降低成本来最大化EEDN公司的利润。建议的规划模型考虑了负载不确定性，并采用鲁棒优化（RO）方法来应对不确定性。使用实际电压相关负载模型（包括住宅，商业和工业类型）说明了开发的方法。这些负载模型用于评估客户的可靠性成本和能源销售。可靠性成本是根据中断后未提供的总负载来计算的。此外，提出了一种新的改进的和谐搜索算法来解决制定的鲁棒动态DER规划问题。所提出的优化模型的解决方案提供了DER的大小，位置和功率因数。此外，是否需要变压器或线路升级以及安装DER的最佳年份是该模型确定的其他决策变量。借助基于典型EEDN的案例研究，已证明了所开发模型的有效性和功能。获得的结果表明，在EEDN中安装DER可以缓解馈线上的拥塞。因此，它可以减轻或推迟升级投资。此外，如果精心计划，则可以实现DER集成的其他好处，例如，提高可靠性和减少能耗。

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