Virtual Oscillator Control for Microgrids

微电网的虚拟振荡器控制

• 批准号: 1509277
• 负责人: Sairaj Dhople
• 金额: $ 31.48万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-09-01 至 2021-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1509277&HistoricalAwards=false
• 关键词: Virtual; Oscillator; Control; Microgrids

A control paradigm based on the emergence of synchronization in complex networks of coupled heterogeneous oscillators is proposed for low-inertia microgrids with increased renewable generation. The key idea pertains to controlling power electronic inverters to emulate the dynamics of nonlinear limit cycle oscillators. The oscillators (inverters) are coupled (connected) through the existing microgrid electrical network, and synchrony emerges in this system with no external forcing such as from a utility grid nor any communication beyond the natural interactions within the existing physical electrical network. Since an emergent phenomenon governs the overarching control philosophy, the proposed paradigm is resilient, robust, modular, and amenable to a plug-and-play implementation in ad-hoc microgrids with variable renewable generation and uncertain loads. The educational opportunities in mathematics, physics, and circuit theory associated with the project are particularly exciting, since research themes are inspired by fascinating synchronization phenomena that continue to captivate the creative and collective imaginations of engineers, physicists, mathematicians, and biologists worldwide.The project seeks groundbreaking advances in the control of power electronics inverters to enable low-inertia microgrids with increased renewable generation. The underlying technical approach is based on a control- and circuit-theoretic viewpoint of emergent synchronization phenomena that are inherent in complex networks of coupled heterogeneous oscillators. The proposed research thrusts span the relevant modeling and analysis challenges to formalize the design approach, pertinent synchronization problems in complex, heterogeneous, and dynamic electrical networks, and implementation issues relating to satisfying load and source requirements. These thrusts afford the twin objectives of advancing the theory of synchronization in networks of coupled oscillators, while leveraging theoretic findings in establishing advanced control paradigms for robust, resilient and sustainable microgrids.

提出了一种基于耦合异质振子复杂网络同步出现的控制范式，用于可再生能源发电量增加的低惯性微电网。关键的想法涉及到控制电力电子逆变器，以模拟非线性极限环振荡器的动态。振荡器（逆变器）通过现有的微电网电网络耦合（连接），并且同步出现在该系统中，而没有外部强制（诸如来自公用电网），也没有超出现有物理电网络内的自然交互的任何通信。由于一个新兴的现象统治的总体控制理念，所提出的范例是弹性的，强大的，模块化的，并服从于一个即插即用的实施在ad hoc微电网与可变的可再生能源发电和不确定的负载。与该项目相关的数学，物理和电路理论的教育机会特别令人兴奋，因为研究主题受到迷人的同步现象的启发，这些现象继续吸引工程师，物理学家，数学家，该项目寻求电力电子逆变器控制方面的突破性进展，以实现低成本，增加可再生能源发电的惯性微电网。基本的技术方法是基于控制和电路理论的观点，紧急同步现象是固有的耦合异构振荡器的复杂网络。建议的研究重点跨越相关的建模和分析的挑战，以形式化的设计方法，相关的同步问题，在复杂的，异构的，动态的电气网络，以及实现问题，满足负载和电源的要求。这些推力提供了推进耦合振荡器网络同步理论的双重目标，同时利用理论研究成果建立先进的控制范例，以实现强大，有弹性和可持续的微电网。