CAREER: A Multiphysics Framework for Modeling, Analysis, and Experimentation of Power Systems and Power Electronics

今天，电力系统被概念化为各种尺度的无源元件、电力电子器件、旋转机械和控制回路的错综复杂的缠结。每个子系统通常都是以近视的方式用专门定制的方法进行研究。在这个建议中，我们展示了如何闭环多物理场能源系统可以统一的电路理论框架下，有效地与电力电子仿真原型。由于电力电子及其闭环控制动作可以建模为等效电路，因此获得了有效桥接电力电子和电力系统划分的模型，从转换器级（瓦特）到系统级（兆瓦）。研究主题在电路，控制和电源的融合中具有独特的优势，因此项目成果将解决可持续供电未来系统设计中的基本挑战。所提出的技术自然会产生各种学习机会，其中复杂的系统及其控制可以直接描述，并且一旦将其视为电路，其实际行为就变得明显。因此，该框架将电气工程中的许多主题编入法典，以便学生能够在其教育经历中无缝应用概念。该项目将开发建模和实验框架，以研究现代系统中的能量动力学。基本的方法是基于第一次显示，众所周知的电路法自然嵌入在电力电子控制反馈路径。这允许控制器的动态行为转换器的等效电路表示的直接翻译;扩展进一步包含电力电子，传感器和机械的异构系统。出现的是一个全面的框架，闭环电力系统和电子建模，能源作为子系统模型之间的基本联系。研究重点集中在：开发具有闭环网络控制的多物理场系统的等效电路模型;制定具有大量使用电子器件及其伴随的快速控制的复杂电力系统的电路模型;该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的知识产权进行评估来支持。优点和更广泛的影响审查标准。

Today, power systems are conceptualized as a convoluted tangle of passive components, power electronics, rotating machinery, and control loops at various scales. Each subsystem is typically studied in a myopic manner with specifically tailored methods. In this proposal, we show how closed-loop multiphysics energy systems can be unified under a circuit theoretic framework and prototyped effectively with power electronics emulation. Since power electronics and their closed-loop control action can be modeled as equivalent circuits, models are obtained that effectively bridge the power electronics and power systems divide, from the converter-level (Watts) to the system-level (Megawatts). Research themes are uniquely poised at the confluence of circuits, control, and power such that project outcomes will address fundamental challenges in the design of sustainably-powered future systems. The proposed techniques naturally yield a variety of learning opportunities where complex systems and their controls can be straightforwardly depicted and their actual behavior becomes obvious once seen as a circuit. Accordingly, this framework codifies numerous topics within electrical engineering so that students can seamlessly apply concepts across their educational experience.The project will develop modeling and experimentation frameworks that allow for the study of energy dynamics in modern systems. The underlying approach is based on first showing that well-known circuit laws are naturally embedded in control feedback paths for power electronics. This allows for a direct translation of controller dynamical behavior into equivalent circuit representations for converters; extensions are further made for heterogeneous systems containing power electronics, sensors, and machinery. What emerges is a comprehensive framework for closed-loop power systems and electronics modeling where energy acts as the fundamental link between subsystem models. Research thrusts focus on: developing equivalent circuit models for multiphysics systems with closed-loop cyber controls; formulating circuit models for complex power systems with massive utilization of electronics and their accompanying fast controls; and outlining a suite of experimental methodologies for emulation of multiphysics power systems and electromechanics.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.