讲座通知:“携手电气精英,与未来同行”系列讲座第294期
暨研究生课程 Modeling and Control of Power Electronics Converters and Motion Control System邀请报告
主讲人:刘增
西安交通大学电气工程学院副教授
主讲人简介:
刘增博士,2006年获得湖南大学学士学位,并于2009年、2013年分别获得西安交通大学电气工程硕士、博士学位。博士毕业后,刘增随即成为西安交通大学电气工程学院一名老师,现为副教授。2015年至2017年,在美国弗吉尼亚理工大学电力电子系统研究中心做访问学者。刘增博士的主要研究方向为并联逆变器的控制、并网逆变器的传输控制和三相交流电力电子系统的小信号稳定性分析。
讲座简介:
AC power electronics systems are used widely in electrical vehicles, micro-grids, and data centers, where the interactions among power converters are prone to induce system instability. Terminal-impedance of power converter based approach is an effective tool to investigate system small-signal stability. At beginning, this talk will discuss the small-signal model for three-phase cascaded AC systems based on terminal-impedances of power converters, system stability analysis based on Generalized Nyquist Criterion, as well as simplified stability criteria. Then modeling and stability analysis of three-phase parallel inverters will be presented, from master-slave systems with current-sharing bus to droop-controlled systems without current-sharing bus. Finally, basic principles and key techniques in impedance measurement of three-phase AC systems will be delivered.
讲座时间:2018年4月26日(周四) 上午8:00-9:40
讲座主题:Small-Signal Stability Analysis of Three-Phase AC Power Electronics Systems Based on Terminal-Impedances of Power Converters
讲座地点:华中科技大学西十二楼S202教室
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电气学院学术交流中心
2018年4月14日