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Linear power flow formulation for low-voltage DC power grids

机译:低压直流电网的线性潮流公式

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This paper presents a reformulation of the power flow problem in low-voltage dc (LVDC) power grids via Taylor's series expansion. The solution of the original nonlinear quadratic model is achieved with this proposed formulation with minimal error when the dc network has a well defined operative conditions. The proposed approach provides an explicit solution of the power flow equations system, which avoids the use of iterative methods. Such a characteristic enables to provide accurate results with very short processing times when real operating scenarios of dc power grids are analyzed. Simulation results verify the precision and speed of the proposed method in comparison to classical numerical methods for both radial and mesh configurations. Those simulations were performed using C++ and MATLAB, which are programming environments commonly adopted to solve power flows.
机译:本文介绍了通过泰勒级数展开式对低压直流(LVDC)电网中的潮流问题的重新表述。当直流网络具有明确定义的工作条件时,使用该提议的公式可以以最小的误差实现原始非线性二次模型的解。所提出的方法为潮流方程系统提供了一个明确的解决方案,它避免了使用迭代方法。当分析直流电网的实际运行场景时,这种特性可以在非常短的处理时间内提供准确的结果。与径向和网格配置的经典数值方法相比,仿真结果证明了该方法的精度和速度。这些仿真是使用C ++和MATLAB进行的,它们是通常用于解决潮流的编程环境。

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