Power grid enhanced resilience using proportional and derivative control with delayed feedback

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• 作者：Eric Donald Dongmo ; Pere Colet ; Paul Woafo
• 关键词：Statistical and Nonlinear Physics
• 刊名：The European Physical Journal B
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：90
• 期：1
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Condensed Matter Physics; Physics, general; Complex Systems; Fluid- and Aerodynamics; Solid State Physics;
• 出版者：Springer Berlin Heidelberg
• ISSN：1434-6036
• 卷排序：90

文摘

This paper investigates the resilience of an elementary electricity system (machine-generator) under proportional and derivative (PD) control when subject to large perturbations. A particular attention is paid to small power grids, representative of power grid structure in some developing countries. The considered elementary electricity system consists of a consumer (machine), a power plant (generator) and a transmission line. Both Runge-Kutta and Newton methods are used to solve the dynamical equations and the characteristic equations for stability. It is found that the controller increases the resilience of the system. We also show that time delays associated to the feedback loop of the controller have a negative impact on the performance. It is also shown that the asymmetry due to energy demand of different consumers to power plant increases the stability of the system.