Upcoming Webinars

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Miniaturizing Energy Interfaces by Intelligent Control by Dr. Mor M. Peretz

Mor Peretz

Presenter: Dr.Mor Peretz, Ben-Gurion University

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The rapid growth of portable and mobile electronics continuously tightens the specifications and adds restrictions on the power delivery. This is done to assure compact, light, energy efficient, and economical power sources. The power processors of modern electronics are required to be ‘invisible’ and still answer all requirements of a high-performance IC. In the worldwide trend of integration, digital design is predominant featuring several advantages such as design convenience, flexibility, scalability, and most of all - performance improvement. This is achieved by advanced hybrid and nonlinear control methods, such as boundary, sliding-mode and other variations of large-signal controllers that improve the dynamic performance and, as a result drastically reduce the overall volume of the SMPS. To facilitate lean digital hardware realization on one hand, and eliminate the dependence of the controller performance on the system variations on the other hand, state-based or decision-making based controllers have evolved along with systematic representation of the control laws on the state-space. The main limitation for the majority of these controllers is that their stability cannot be directly guaranteed using the known techniques available in the literature, since an analytical formulation of the control law is not immediate. 

Implications of the control method on the resultant response may vary from one converter configuration to another. For example, with direct energy transfer converters, e.g., buck or forward, the time-optimal control produces the fastest possible dynamic response to load transients with the minimum possible output voltage deviation. However, when applying time-optimal control on indirect energy transfer converters, e.g., boost or flyback, the fast dynamic response trades with the output voltage deviation and peak inductor current, increasing the sizing requirements from both the output capacitor and the inductor. On the other hand, minimum output voltage deviation for boost type converters results in prolong transient time, infinite in the ideal case.

This Webinar is devoted to raise awareness to the positive implications of intelligent hybrid controllers on power processing and conversion. It starts with a review from a physical perspective of state-space representation for switching converters and puts in context the properties of the state trajectories and description of controllers. Then, a practical 5-step tool to examine large-signal stability and performance evaluation of switch-mode converters is introduced. Finally, several controller variations are surveyed, compared and quantified.

Practicality as well as feasibility of realization of the controllers is a key issue of this Webinar. Therefore, every step is demonstrated on both simulation and experimental platforms, along with detailed hardware information.

About the presenter:

Mor M. Peretz was born in Beer-Sheva, Israel, in 1979. He received the B.Tech. degree in electrical engineering from the Negev Academic College of Engineering, Beer-Sheva, in 2003, and the M.Sc. and Ph.D. degrees in electrical and computer engineering from Ben-Gurion University, Negev, Israel, in 2005 and 2010, respectively.

From 2010 to 2012, he was a Postdoctoral Fellow at the Laboratory for Power Management and Integrated SMPS, University of Toronto, Canada. In 2012, he joined the Department of Electrical and Computer Engineering, Ben-Gurion University, where he is currently the director of the Center for Power Electronics and Mixed-Signal IC.

Dr. Peretz authored over 100 publications and filed 15 patens. He serves as an associate editor of the IEEE Transactions on Power Electronics and the IEEE Journal of Emerging and Selected Topics in Power Electronics. His research interests include SMPS miniaturization, mixed-signal IC design of SMPS, Power SoC, digital and smart control methods for efficient energy processing, modeling and computer aided design, applications of nonlinear magnetics, and renewable energy systems.


Power Electronics-Enabled Autonomous Power Systems - Synchronized and Democratized (SYNDEM) Smart Grids by Dr. Qing-Chang Zhong, IEEE Fellow, IET Fellow

Qing Chang Zhong 2016Tue, Mar 20, 2018 11:00 AM - 12:00 PM EDT
Presenter: Dr. Qing-Chang Zhong, IEEE Fellow, IET Fellow
Max McGraw Endowed Chair Professor in Energy and Power Engineering
Illinois Institute of Technology, Chicago, IL, USA

Founder, Syndem LLC, IL, USA

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Abstract: Power systems are going through a paradigm change from the current power systems dominated by electric machines to the next-generation smart grid enabled by power electronics, presenting a great opportunity to the power electronics society. In this lecture, it will be shown that the power electronic converters in millions of active, intermittent, non-synchronous, variable and distributed energy resources and flexible loads can be controlled to behave like virtual synchronous machines (VSM). They can all take part in the regulation of power system frequency and voltage via independent individual actions in a synchronized and democratized manner, leading to synchronized and democratized smart grids. Moreover, the dedicated synchronisation units, often phase-locked-loops, can be removed to further reduce complexity and improve performance. These active distributed players only require local information and communicate with each other through the power network, rather than through additional communication infrastructure, bringing stability, scalability, operability, reliability, security and resiliency to next-generation smart grids.  Click www.syndem.com for more details.

Dr. Qing-Chang Zhong, Fellow of IEEE and IET, is the Max McGraw Endowed Chair Professor in Energy and Power Engineering and Management at Department of Electrical and Computer Engineering, Illinois Institute of Technology, Chicago, USA, and the Founder & CEO of Syndem LLC, IL, USA. Having been recognized as a Distinguished Lecturer of the IEEE Power Electronics Society, the IEEE Power and Energy Society and the IEEE Control Systems Society, he is a world-leading multidisciplinary expert in power electronics, control, and power systems. Before joining Illinois Institute of Technology, he was the Chair Professor in Control and Systems Engineering at The University of Sheffield, UK, where he built up a $5M+ research lab dedicated to the control of energy and power systems and attracted the support of Rolls-Royce, National Instruments, Texas Instruments, Siemens, ALSTOM, Turbo Power Systems, Chroma, Yokagawa, OPAL RT and other organizations. He (co-)authored three research monographs, including Control of Power Inverters in Renewable Energy and Smart Grid Integration (Wiley-IEEE Press, 2013). His fourth book entitled Power Electronics-Enabled Autonomous Power Systems: Next Generation Smart Grids is scheduled for publication by Wiley-IEEE Press. He is/was an Associate Editor for several leading journals in control and power engineering, including four IEEE Transactions. He proposed a unified architecture as well as the technical routes for next-generation smart grids based on the synchronization mechanism of synchronous machines. This line of research has been featured by IEEE Power Electronics Magazine as a cover story, by Midwest Energy News as Game Changer for Grid, by IEEE Spectrum as a vision for a harmonious grid, and by IEEE PES Task Force on Primary Frequency Control as the Path to the Future. He delivered 150+ talks in 20+ countries, including delivering a semi-plenary talk at the 20th IFAC World Congress, which is the world’s largest conference in control and systems engineering. His current research focuses on addressing fundamental challenges in energy and power systems through the seamless integration of control theory and power electronics.  


Looking for a past Webinar? Check out the PELS Resource Center and watch it on-demand

The IEEE PELS Resource Center platform, a new multimedia online library launched in 2016. You may find archived materials such as:

• Conference Presentation Videos and Slides
• Technical Panel Sessions Videos
• Interviews
• Newsletters
• Webinars
• Tutorials
• Distinguished Lecture Videos and Slides

New and archived content are continuously being added!

IEEE Power Electronics Society CALL FOR WEBINAR SPEAKERS 2018

IEEE Power Electronics Society is pleased to announce PELS Webinar Library, which is open to all PELS members as a membership benefit. The PELS Webinars can be viewed live with free registration. After the event is over, the link to the video of the webinar will be available through the PELS Webinar Library: http://www.ieee-pels.org/products/pels-webinars . This library will allow access to all recorded Webinars from power electronics experts from all over the world. The Webinars can be viewed on a mobile device, tablet or on a computer of your choice.

The webinars’ scope covers all fields of interest of the IEEE PELS which include the development and application of power electronics technology, which encompass the effective use of electronic components, the application of circuit theory and design techniques, and the development of analytical tools toward efficient electronic conversion, control, and conditioning of electric power. Specific topics include (but not limited to)
Emerging topics in wireless power conversion
Wideband-gap devices and applications
Renewable energy systems
Converters for smart grid
Advance motor drive systems
Modeling, simulation and control
Advance packaging and thermal management

Open for Submissions:

PELS Webinars are open for submissions to anyone from the power electronics industry interested in sharing their experiences with the rest of the IEEE PELS community. Each Webinar is for 30-45 minutes followed by Q&A.

To submit a proposal, please submit the names, the contact information, and short bios of the presenters, the title and a half a page abstract of the proposed subject to the Digital Media Editorial Committee Chair: enjeti@tamu.edu and b.boresen@ieee.org