class="kwd-title">Keywords: Distribution systems, Energy management systems, Jacobian matrix, Optimal power flow, Smart Grids, Unbalanced systems class="head no_bottom_margin" id="ab015title">AbstractThis paper presents a new generic approach for developing a Jacobian matrix for use with the optimization unit in real-time energy management systems (EMS) for unbalanced smart distribution systems. The proposed formulation can replace approximated calculations for real-time optimal power flow in an optimization unit while providing greater accuracy and requiring less computational time, which is critical for real-time EMS. The effectiveness and robustness of the proposed approach have been tested through simulations with different distribution networks. The simulation results demonstrate a significant reduction in the computational time with the new proposed formulation. Moreover, the results demonstrate the scalability of the proposed approach as the reduction in the computational time is more significant for large practical systems. The proposed approach is characterized by evaluating the scalability and low computational time; thus, it can be used by grid operators in real-time energy management applications for large-scale practical distribution systems.
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机译：<！-fig ft0-> <！-fig @ position =“ anchor” mode =文章f4-> <！-fig mode =“ anchred” f5-> <！-fig / graphic | fig / alternatives / graphic mode =“ anchored” m1-> class =“ kwd-title”>关键字：配电系统，能源管理系统，雅可比矩阵，最优潮流，智能电网，不平衡系统 class =“ head no_bottom_margin” id =“ ab015title”>摘要本文提出了一种新的通用方法，用于开发Jacobian矩阵，该矩阵可与优化单元一起用于不平衡智能配电系统的实时能源管理系统（EMS） 。所提出的公式可以代替优化单元中实时最佳功率流的近似计算，同时提供更高的准确性和所需的计算时间，这对于实时EMS至关重要。通过不同配电网络的仿真测试了该方法的有效性和鲁棒性。仿真结果表明，使用新提出的公式可以显着减少计算时间。此外，结果证明了该方法的可扩展性，因为对于大型实际系统而言，计算时间的减少更为显着。所提出的方法的特点是评估可伸缩性和低计算时间。因此，它可以被电网运营商用于大型实际配电系统的实时能源管理应用中。
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