CAREER: Control of Integrated Wind Turbine and Rechargeable Battery Systems

该学院早期职业发展(CALEAR)计划奖的目标是建立一个可再生能源的长期研究和教育计划，最初的研究重点是控制集成的风力涡轮机和充电电池系统，以减轻风力发电间歇性的影响，并最大限度地延长充电电池的寿命。集成的风力涡轮机和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，对控制设计提出了很大的挑战。本研究旨在了解复杂系统在不同运行模式间的动态特性，并建立一种新的控制范式以确保系统的最优性能。该方法包括明确推导一类切换系统驻留时间的下界，提出一种创新的最优非线性轨迹控制方法，以及建立一个基于物理的、面向控制的电池荷电状态模型，用于观测器设计。控制算法将在工业规模的风力涡轮机和电池集成系统上开发和测试。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，有助于创造清洁能源就业机会，并造福整个社会。本研究开发的技术可适用于内陆、近海和深海浮式风力发电机组的应用。它可以用于兆瓦级的风电场安装，以及屋顶的独栋住宅单元。该提案的教育部分力求扩大代表人数不足的群体成员对工程学的参与。它还侧重于让初中生和高中生及其理工科教师参与进来。

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.