Tutorials

The conference organisers will offer participants several high quality tutorials on topics relevant to the conference's main subject areas, at no additional charge.

List of available tutorials

The following five tutorials will be open to ISIE2020 participants. Details on timing and registration will be made available shortly.

System-Level Design and Optimization of Multi-Megahertz Wireless Power Transfer Systems (4 hours)

  • Dr. Ming Liu, Princeton University, USA
  • Dr. Minfan Fu, ShanghaiTech University, China
  • Dr. Chengbin Ma, Univ. of Michigan-Shanghai Jiao Tong Univ. Joint Institute, China

In this tutorial, we plan to comprehensively summarize and explain our pioneer work on system-level approaches for high performance multi-MHz WPT systems. Operation in the MHz frequency band presents technical challenges due to possible increased power losses, strong nonlinearities of devices, and electromagnetic interference (EMI) problem. Special considerations are also needed for the robustness against variations in coil relative position and final load. All these challenges inherently require interdisciplinary efforts that combine the knowledge and insights in power electronics, radio frequency and microwave, circuit modeling, robust analysis, design optimization and control. As described in the following outline, this tutorial begins with an overview of the major challenges and limitations of the present multi-MHz WPT systems; then mentions the appropriate circuit topologies for the main components (power amplifiers and rectifiers) that provide high efficiency, low noise, and robust power conversion. The Class E topologies are especially useful for improving efficiency and facilitating optimizationbased design. This tutorial continues to explain the analytical modeling and analysis of the multi-MHz WPT systems, providing the foundation for the following design and control efforts. It then comprehensively describes both the system-level passive design and feedback-based active control to improve the overall system performance in terms of efficiency, noise reduction, and robustness. Particular mention is made of the modeling, design and control aspects of the multiple-receiver WPT systems. Finally, this tutorial also reviews the recent developments in the multi-MHz WPT, such as new applications and dual-band design.

Further details available here.

DC and AC Microgrids (4 hours)

  • Dr.ir. Laura Ramírez Elizondo, Delft University of Technology, The Netherlands
  • Prof. Pavol Bauer, Delft University of Technology, The Netherlands

The DC and AC microgrids tutorial will cover a wide range of topics, going from the description of basic definitions to the analysis of existing pilot projects. Special focus will be given to the modelling and control of DC microgrids and to the important role of power electronic components in these systems.

The tutorial will consist of 7 modules. During the first module, the student will learn to differentiate the concepts of microgrid, smart grid and virtual power plant, as well as to distinguish the difference between a passive and an active distribution network. During the second module the topics of centralized and decentralized control will be addressed. In module 3, the lecture will focus on local controllers and in module 4 the operation of different power electronic elements will be discussed. During the fifth module of the tutorial, the topic of DC microgrids will be covered. DC microgrids are still at an early stage and there are still many challenges to be tacked. During this lecture the student will be able to describe the main motivations and challenges for the implementation of DC microgrids. In module 6, the student will be able to explain the concepts of microgrid protection, adaptive protection, and to describe the effect of using a fault current source and fault current limitation in a microgrid. After having covered all these topics, in module 7 the student will be able to apply them by controlling and evaluating a given microgrid through a simulation tool. The student will work on an group assignment and will make a presentation explaining the results so that other students can learn from the findings. By the end of this lecture the student will have a broad picture of the state-of-the-art of DC and AC microgrids.

Further details available here.

Electric Spring (2 hours)

  • Prof. Giuseppe Buja, Department of Industrial Engineering, University of Padova, Italy
  • Prof. Qingsong Wang, School of Electrical Engineering, Southeast University, Nanjing, China

As the energy crisis and environmental deterioration in the world are becoming more and more prominent, it is urgent to utilize alternative energy sources to replace the traditional fossil fuels. Solar and wind, as clean renewable energy sources (RESs), are currently largely used. However, their power delivery is intermittent and not entirely predictable. When such RESs are incorporated into the grid, the intermittency in their output power gives rise to a mismatch between power generation and demand that is liable to affect the quality of the electric service by altering the magnitude and possibly, the frequency of the supply voltage of the customer loads.

A new compelling way to mitigate the power quality issues caused by RES power intermittency is represented by electric spring (ES). It creatively applies the concept of mechanical spring to an electric load to stabilize the supply voltage magnitude at the customer side. The basic idea is to classify the customer loads into two categories: the critical load (CL) category -such as information centres and hospitals- that requires a well-stabilized voltage supply, and the non-critical load (NCL) category -such as water heaters and refrigerators- that accepts a certain tolerance on the voltage supply level. By adjusting magnitude and phase of its output voltage, an ES is able to exchange a suitable of active and reactive powers with NCL so as to keep constant the voltage magnitude and, then, the power absorbed by CL.

This tutorial plans to give a comprehensive presentation of the state-of-art on the ES technology, including the operational activities carried out on an ES setup.

Further details available here.

Advanced Motion Control for Vibration Suppression: from Theory to Applications (2 hours)

  • Prof. Seiichiro Katsura, Keio University, Japan
  • Prof. Kiyoshi Ohishi, Nagaoka University of Technology, Japan
  • Prof. Krzysztof SzabatWroclaw University of Science and Technology, Poland

Recently, progress in performance of computer and control techniques has contributed to rapid and accurate control of industrial machines and robots. However, the rapid movements excite the mechanical resonances, which prevent the machines and robots from further improvement of rapidness and accuracy. In addition, time delay included in a communication system or D/A converter decreases phase margin of a controlled system, and it also induces vibrations. Therefore, in order to realize the further rapid and accurate motion of machines and robots, vibration suppression of mechanical resonance and time-delay compensation should be considered in the control design. In this Tutorial, 3 speakers will give lectures about vibration control of motion systems from theory to industry applications.

Further details available here.

Grid-Tied Inverters Power Quality Time Domain Evaluation (3 hours)

Unfortunately, we have had to cancel this tutorial due to unexpected unavailability of the speaker.