报告题目：Control and Stability Analysis of a Multiple Source-based Aircraft Onboard DC Microgrid

报告时间：2018年5月8日14:00-16:00

报告地点：1066vip威尼斯延长校区电机楼二楼会议室

报告内容：

With the rapid development of power electronics technology, DC microgrids (MGs) have been successfully used not only in data centers but also in more electric transportation systems (e.g., more electric aircrafts). In a multiple power electronic converters based aircraft onboard DC microgrid, power sharing control is of importance since it may affect the power quality, system efficiency and stability. This talk first gives a brief introduction of the more electric aircraft, and then provides a high level overview of power sharing control strategies in a multi-source DC microgrid. Taking an example of voltage-source converter interfaced onboard DC microgrid, hierarchical control structure including primary and secondary control approaches is discussed in detail. In addition, many onboard loads, which are tightly controlled by power electronics, often behave as constant power loads (CPLs). As seen by power system, these loads show negative incremental impedance property which could result in degraded stability margins or even oscillations. To judge the system stability in power electronics systems and ensure a wide range of operation scenarios, this talk finally provides an overview of small signal stability analysis methods in DC microgrids.

报告人简介：

高飞，博士，牛津大学博士后研究员。2010年获上海交通大学电力 电子与力传动专业工学硕士位，2010-2012年在国家电网 江苏省电力公司任职，2012年获英国诺丁汉大学全额奖金资助前往英国攻读博士，2016年获英国诺丁汉大学电力与传动博士学位。主要研究方向为直流微电网和多飞机电气系统的建模，控制及稳定性分析。作为主要成员参与欧盟第七框架（FP7）科研项目，英国工程和自然科学研究委员会（EPSRC）项目，英国高等教育创新基金（HEIF）项目等多项英国及欧盟重点科研项目，发表国际高水平期刊及会议（IEEE/SAE）论文二十余篇。