CAREER: Control of Integrated Wind Turbine and Rechargeable Battery Systems

该学院早期职业发展（Career）计划奖的目标是建立可再生能源的长期研究和教育计划，最初的研究重点是集成风力涡轮机和可充电电池系统的控制，以减轻风力发电间歇性的影响，并最大限度地延长可充电电池的寿命。集成的风力涡轮机和可充电电池系统为在全国范围内广泛安装风力涡轮机提供了关键的使能技术。集成系统是一个切换系统，对控制设计提出了重大挑战。本研究旨在了解不同运行模式下复杂的系统动力学，并建立一种新的控制范式，以确保系统的最佳性能。该方法包括明确推导一类切换系统的停留时间下界，制定创新的最优非线性轨迹控制方法，以及开发基于物理的、面向控制的电池充电状态模型，用于观测器设计。控制算法将在工业规模的集成风力涡轮机和电池系统上开发和测试。这项研究可能会为风能转变为国家整体电力供应的主要贡献者铺平道路，帮助创造清洁能源就业机会，并使整个社会受益。本研究开发的技术可适用于内陆、近海和深海漂浮式风力涡轮机。它可以用于兆瓦级风力发电场装置，也可以用于屋顶单个家庭装置。该提案的教育部分旨在扩大来自代表性不足群体的成员在工程领域的参与。它还侧重于让初高中学生和他们的老师参与科学和工程。

The objective of this Faculty Early Career Development (CAREER) Program award is to establish a long-term research and educational program in renewable energy, with an initial research focus on the control of an integrated wind turbine and rechargeable battery system to mitigate the effect of wind power intermittency and to maximize the life of rechargeable batteries. The integrated wind turbine and rechargeable battery system provides key enabling technology for broad installation of wind turbines nationwide. The integrated system is a switched system and presents significant challenges for control design. This research aims at understanding the complex system dynamics between the different operating modes and establishing a novel control paradigm to ensure the optimal system performance. The approach includes explicitly deriving a lower bound of the dwell time for a class of switched systems, formulating an innovative optimal nonlinear trajectory control methodology, and developing a physics-based, control-oriented battery state-of-charge model for observer design. Control algorithms will be developed and tested on an industrial-size integrated wind turbine and battery system.This research will potentially pave the road for wind energy to transform into a major contributor to the nation's overall power supply, help create clean energy jobs, and benefit society at large. The technology developed in this research could be adapted to inland, offshore, and deep-sea floating wind turbine applications. It can be used for megawatts wind farm installations, as well as roof-top single home units. The educational component of the proposal seeks to broaden the participation of members from underrepresented groups in engineering. It also focuses on engaging middle school and high school students, and their teachers in science and engineering.