The penetration of power electronics into power generation and distribution systems has deepened in recent years, as prompted by the increasing use of renewable sources, the quest for higher performance in the control of power conversion, as well as the increasing influence of economic plans that necessitate power trading among different regions or clusters of power distribution. As a result of the increased use of power electronics for controlling power flows in power systems, interactions of power electronics systems and conventional synchronous machines’ dynamics would inevitably cause stability and robustness concerns, which can be readily understood by the coupling effects among interacting dynamical systems of varying stability margins (or transient performances). In this article, we present the various problems of power electronics penetration into power grids and the implications on the stability and robustness of power networks. We specifically attempt to bring together two distinct perspectives, namely, bottom-up (local) and top-down (global) perspectives, and examine the current progress and future direction of research in power systems amidst the extensive deployment of power electronics.

中文翻译：

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电力电子渗透电网中的电路和系统问题

近年来，由于越来越多地使用可再生资源，寻求更高性能的电力转换控制以及经济计划的日益增长的影响，电力电子技术在电力生产和配电系统中的渗透日益加深。不同区域或配电集群之间的电力交易。由于越来越多地使用电力电子设备来控制电力系统中的电力流，电力电子系统与常规同步电机动力学之间的相互作用将不可避免地引起稳定性和鲁棒性问题，这可以通过相互作用的动力学系统之间的耦合效应轻松理解。不同的稳定性裕度（或瞬态性能）。在这篇文章中，我们介绍了电力电子技术渗透到电网中的各种问题以及对电网稳定性和鲁棒性的影响。我们专门尝试将自下而上（本地）和自上而下（全局）的两种观点融合在一起，并在电力电子技术的广泛部署中检查电力系统研究的当前进展和未来方向。