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Adaptive robust energy management for isolated microgrids considering reactive power capabilities of distributed energy resources and reactive power costs
Electric Power Systems Research ( IF 3.3 ) Pub Date : 2021-05-28 , DOI: 10.1016/j.epsr.2021.107375
Shady M. Sadek , Walid A. Omran , M.A. Moustafa Hassan , Hossam E.A. Talaat

This paper presents an adaptive robust Energy Management (EM) model for an isolated Microgrid (MG) to decide for the day-ahead optimal dispatch to effectively manage the MG power sources considering uncertainties in Renewable Energy Sources (RESs). The aim of this model is to minimize the operation costs, reactive power costs, spinning reserve and load shedding. Usually, fuel consumption costs of diesel generators are considered to be dependent on active power generation only. However, neglecting the related reactive power costs might result in increased operation costs and deviations from optimal dispatches. Hence, this paper optimizes the costs related to both active and reactive powers of diesel generators. Furthermore, simultaneous active/reactive power dispatch can lead to accurate operation decisions compared to separate dispatch for active or reactive power alone. In addition, this study considers the reactive power capability of inverter-interfaced Distributed Energy Resources (DERs) so that reactive powers can be supplied from inverter-interfaced DERs. Moreover, detailed models for the different resources are presented, especially for diesel generators and inverter interfaced DERs where actual capability curves are used instead of the widely used box constraints. The problem is formulated as nonlinear programming problem using GAMS program and solved by the CONOPT solver.



中文翻译:

考虑分布式能源的无功能力和无功成本的孤立微电网自适应鲁棒能量管理

本文提出了一种适用于孤立微电网 (MG) 的自适应稳健能源管理 (EM) 模型,以决定日前最佳调度,以在考虑可再生能源 (RES) 的不确定性的情况下有效管理 MG 电源。该模型的目的是将运行成本、无功成本、旋转备用和减载降到最低。通常,柴油发电机的燃料消耗成本被认为仅取决于有功发电量。然而,忽略相关的无功功率成本可能会导致运行成本增加和偏离最佳调度。因此,本文优化了与柴油发电机的有功和无功功率相关的成本。此外,与单独的有功或无功功率单独调度相比,同时有功/无功功率调度可以导致准确的运行决策。此外,本研究考虑了逆变器接口分布式能源 (DER) 的无功功率能力,以便可以从逆变器接口 DER 提供无功功率。此外,还介绍了不同资源的详细模型,尤其是柴油发电机和逆变器接口 DER,其中使用实际能力曲线而不是广泛使用的箱式约束。该问题使用 GAMS 程序制定为非线性规划问题,并由 CONOPT 求解器解决。本研究考虑了逆变器接口分布式能源 (DER) 的无功功率能力,以便可以从逆变器接口 DER 提供无功功率。此外,还介绍了不同资源的详细模型,尤其是柴油发电机和逆变器接口 DER,其中使用实际能力曲线而不是广泛使用的箱式约束。该问题使用 GAMS 程序制定为非线性规划问题,并由 CONOPT 求解器解决。本研究考虑了逆变器接口分布式能源 (DER) 的无功功率能力,以便可以从逆变器接口 DER 提供无功功率。此外,还介绍了不同资源的详细模型,尤其是柴油发电机和逆变器接口 DER,其中使用实际能力曲线而不是广泛使用的箱式约束。该问题使用 GAMS 程序制定为非线性规划问题,并由 CONOPT 求解器解决。

更新日期:2021-05-28
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