Cost, energy efficiency and reliability are the key factors for widespread usage of microgrids in developing sustainable green buildings and communities. Minimum energy conversion stages with high energy efficiency are required in order to achieve this goal. Silicon Carbide (SiC) and Gallium Nitride (GaN) power switching devices with superior electrical and thermal performances than silicon promise significant energy and cost savings for power electronics converters. However, special care must be taken in circuit design, system integration and packaging of SiC and GaN power converters for reliable operation at increased switching frequencies and elevated temperatures.
This half-day short course will present an overview and performance advantages of commercial state-of-the-art SiC and GaN power switching devices. Prototype converter designs will be discussed with experimental data to demonstrate significant efficiency gains in lowvoltage point-of-load (PoL) power converters, DC-DC converters and inverters. A tradeoff in performance vs. cost will be made at the system level.
- Device structures
- Data sheets
- Key performance and reliability parameters
- Power diodes
- Power MOSFETs
- HEMTs
- Gate drive requirements
- Dead-time management
- Layout techniques for high-frequency, multi-megahertz switching
- Paralleling techniques for higher current
- Thermal design considerations
- PoL GaN power converter
- SiC power inverter
Krishna Shenai is Distinguished Professor and Director of R&D at NMAM Institute of Technology, Nitte, Karnataka. Dr. Shenai received his B. Tech. degree in electronics from IITMadras in 1979, and MS and Ph.D. degrees in electrical engineering from The University of Maryland and Stanford University in 1981 and 1986, respectively. For more than 35 years, Dr. Shenai has pioneered and made seminal contributions to power semiconductor devices and power electronics converters. He is a Fellow of IEEE, a Fellow of the American Physical Society, and a Fellow of the American Association for the Advancement of Science. Dr. Shenai has authored over 450 peer-reviewed papers and 10 book chapters, edited 4 books and 10 conference digests, and holds 13 issued US patents. He is an Editor of IEEE J. Electron Device Society (JEDS).
The AC Vs DC debate between Tesla and Edison was over in late 19th century, with transformer technology enabling AC power-distribution lines to have a distinct advantage. World-over, expansion of AC power-lines happened, with DC lines virtually dying slowly but surely. R&D and manufacturing focused on protection and power-distribution of AC power-lines and work on DC power-line all but vanished. AC appliances proliferated the market.
When the DC power was almost forgotten, it took a back-door entry into homes and offices in 1970s. The advent of Integrated Circuits made electronic systems and devices reliable, inexpensive and usable by people at large. These electronic systems however needed DC power and AC-DC converters came along with all such electronic systems. These converters had losses and were less reliable than the electronic systems itself. But the electronics systems consumed low-power and some losses in the converters were acceptable. But as electronics started dominating homes and offices (TVs, radios, music systems, cell-phones, tablets, personal computers, laptops, displays and almost every sensor) the sum-total of the losses became considerable.
Then a few years back, LED emerged as energy-efficient lighting source. Now these LEDs needed DC power, requiring AC to DC converters when powered on AC power lines. Again these converters had losses. At around the same time, Power electronics, which used discreet devices earlier, got a big boost with the emergence of Power-electronics Integrated Circuits. Now complex power-electronics circuits could be designed and manufactured at much lower-costs. This impacted converter design, but probably far more significantly, the design of Motors. Brushless DC (BLDC) motors and Switch Reluctance (SR) motors became inexpensive when manufactured in volumes and could now compete with the cost of AC induction motors. Now the BLDC motors and SR motors were far more energy-efficient as compared to AC induction motors, especially at variable speed. Further, they needed DC power and the power form AC line needed to be converted to DC to power them. BLDC motors and SR motors started appearing in fans, refrigerators, air-conditioners, mixers and grinders, washing machines, chillers, lifts and pumps, simply because they made it far-more energy-efficient.
Soon it came into being that almost all appliances used at homes and offices had become DC. Power from AC line needed to be converted to DC to power each of them. What if a DC power-line was available at homes and offices? While the question was still in the minds, the final blow came from roof-top solar PV systems and batteries. The former generated only DC power and the later was charged and outputs DC power. Again converters (also referred to as inverters) would be required to connect them to AC power-lines at homes and offices. It was pretty clear that an alternative was needed. DC micro-grids for homes and offices was staring at us.
1. Moving from AC power-line to DC power line at homes/offices: why? What difference does solar mean?
a. What are the gains?
b. Are we ready?
c. What voltages are suitable and why: choices and reasons for selection
2. Appliances with equipment: what is available and what is needed
3. Connecting homes to solar DC – architecture, technological challenges and economics
4. Solar DC solution for commercial buildings and complexes: architecture,technological challenges and economics
5. Solar DC for Agriculture
Dr. Ashok Jhunjhunwala is Professor at the Department of Electrical Engineering, Indian Institute of Technology Madras India. He received a B.Tech degree from IIT, Kanpur, and M.S. and Ph.D degrees from the University of Maine, USA. He has been a member of the faculty at IIT, Madras since 1981 and Department Chair until recently. Professor Jhunjhunwala has the unique distinction among academics for combining innovations in technology and business incubation with the social goal of sustainable development in India.
He is considered the pioneer in nurturing Industry-Academia interaction in India towards R&D, Innovation and Product Development. He conceived and built the first Research Park (IIT Madras Research Park) in India which houses over 100 R&D companies in its 1.2 million square feet built-up area. Having made a mark in telecom, over the last couple of years he has focused on power and has come up with innovation to ensure that all homes in India get 24x7 power even in situation of extreme power-shortage.
1. Author of accepted paper(Oral and Poster) must submit the final manuscript ( 6 pages) on or before 15 October 2016.
2. The paper must be written and formatted as per any of the IEEE style sheet attached here https://www.ieee.org/conferences_events/conferences/publishing/templates.html
3. Paper submission should be only in PDF Format. Please click here and use IEEE PDF eXpress site to validate your papers.
4. Once your PDF file is validated, save the report that is generated by PDF Express.
5. Fill the IEEE Copyright Form . Sign & scan the copyright form as per the instructions given in the form and prepare for upload.
6. Note that plagiarism check is integral to the process and if the manuscript is found to violate, it will be rejected. The authors own all responsibility to face any legal consequences that may arise if plagiarized content is detected at a later date.
7. The final manuscript must be uploaded on the website.
The following documents must be uploaded
1. Manuscript of full paper, in PDF form, After checking in PDF Express
2. Report generated by PDF Express
3. Signed and scanned IEEE copyright form
Use of DC electricity enhances system –wide efficiency and reduces the overall cost. DC and hybrid microgrids powered by distributed clean energy sources such as wind and solar systems can rapidly contribute to human development around the world. Electric vehicles powered with clean energy technologies have potential to dramatically impact the impending global climate changes.
July 15
Deadline for 2-page extended abstract submission
August 15
Notification of acceptance/rejection decision
October 15
Deadline for 6-page digest submission
SGBC is the first international conference of its kind where Academics, Industry and Government partners are coming together to get researchers and practitioners across the world to rendezvous on best practices for moving towards Sustainable Green Buildings and Communities.
The conference is sponsored by IEEE.
Also the conference is Technical Co-sponsored by
Our ability to generate, store, and utilize DC electricity locally from clean and sustainable energy sources without the need for long-range transmission and distribution system enables the possibility for transformational changes in the electric utility and transportation infrastructures. The use of DC electricity enhances system-wide efficiency and reduces the overall cost. DC and hybrid microgrids powered by distributed clean energy sources such as wind and solar PV systems can rapidly contribute to human development around the world, and especially in emerging economies. Likewise, electric vehicles powered with clean energy technologies have the potential to dramatically impact the impending global climate changes. Papers are especially solicited on the following topics related to the development of net-zero energy green buildings and communities:
Download
He is considered the pioneer in nurturing Industry-Academia interaction in India towards R&D, Innovation and Product Development. He conceived and built the first Research Park (IIT Madras Research Park) in India which houses over 100 R&D companies in its 1.2 million square feet built-up area. Having made a mark in telecom, over the last couple of years he has focused on power and has come up with innovation to ensure that all homes in India get 24 x 7 power even in situation of extreme power-shortage.
Dr.Krishna Shenai was born in Katapadi, Udupi District in 1956 to a modest GSB family. He attended SVS Schools in Katapadi from grade 1 to grade 10, and secured the coveted 15th rank in the Karnataka State S.S.L.C exam in 1972; in 1974, he obtained the 3rd rank in the Karnataka State P.U.C exam from the elite M.G.M. College in Udupi. Subsequently, he earned his B. Tech. (electronics) degree from the Indian Institute of Technology in Madras, India in 1979, MS (EE) degree from the University of Maryland – College Park, MD in 1981, and Ph.D. (EE) degree from Stanford University, Stanford, CA in 1986.
In addition to his duties at NMAM IT, Dr. Shenai also serves as the President of LoPel Corporation in USA and an Adjunct Professor of Electrical Engineering and Computer Science at Northwestern University in Evanston, Illinois, USA. Dr. Shenai’s pioneering research for over 30 years has made fundamental and seminal contributions to advancing solid-state energy and power systems technologies, and has provided foundation technologies for several commercial products that are netting multi-billion dollars of annual sales revenues. He is a seasoned entrepreneur and has founded and managed two venture-financed startup companies to successful outcomes. He has authored 3 books, 10 book chapters, over 450 archived papers, and holds 13 issued U.S. patents. He is a Fellow of IEEE, a Fellow of the American Physical Society, a Fellow of AAAS, a Fellow of IETE (India), is a member of Serbian Academy of Engineers, Senior Scholar of University of Illinois, and a Distinguished Lecturer of IEEE Electron Device Society (EDS). Currently, Dr. Shenai’s teaching and research are focused on the development and commercialization of clean energy technologies and medical devices.
Ashok Jhunjhunwala
IIT Madras, India
Title : Energy optimization and Cost Management in multi-storied Green Complexes.
B. G. Fernandes
IIT Bombay, India
Title :
Deepak Divan
Professor and Director of Center for Distributed Energy
Title : Increasing solar hosting capacity is the key to sustainability
Giandomenico Testi
ABB, India
Title : Renewable Energy Integration Perspectives & Challenges
Krishna Shenai
NMAM Institute of Technology, India
Title : Increased Energy Efficiency in DC power Distribution Systems.
Krishna Vasudevan
IIT-Madras, India
Title :Need For indan standard for 48 V DC ELV Distribution
Kushant Uppal
Title :Energy Efficiency in Lighting : AC Vs DC LED Lights
Mili Majumdar
Green Business Certification Institute Pvt Ltd, India
Title : PEER - a tool to design, measure & monitor the performance of Smart Grid
Sankar Das Gupta
lectrovaya Inc., and University of Toronto
Title :Application of Lithium Ion Battery to Sustainable Green Buildings and Communities
Venkat Rajaraman
Cygni Energy Pvt Ltd, India
Title :Bringing Uninterrupted DC Power to Indian Homes, The Sasaram Experience
IEEE member: Rs.4000/-.
IEEE non-member: Rs.4500/-.
Students: Rs.3000/-
IEEE member: Rs.3000/-.
IEEE non-member: Rs.3500/-.
Students: Rs.2000/-
B. G. Fernandes received the B. Tech. Degree in Electrical Engineering from National Institute of Technology, Surathkal, India and M. Tech. degree from Electrical Engineering department, Indian Institute of Technology Kharagpur, India. He received the Ph.D. degree in the Electrical Engineering department, Indian Institute of Technology Bombay, India where he is currently a Professor and Head. His present research interests include motors for electric vehicles, VAR compensation and power electronic interfaces for non conventional energy sources.
“Mili Majumdar is Managing Director of Green Business Certification Institute Pvt Ltd, India and Senior Vice President, USGBC. Mili has more than two decades of experience in the field of energy and environment with a focus on sustainable development of habitats. She has worked tremendously in the sectors of green buildings, climate resilient housing, city planning and urban transportation.”
Venkat Rajaraman: Venkat is the Founder/CEO of Cygni Energy and an Advisory Committee member of National Center for Photovoltaic Research and Education (NCPRE), India. He has over 20 years of experience in Product Design and Engineering Management
Dr. Deepak Divan is Professor, John E Pippin Chair, GRA Eminent Scholar and Director of the Center for Distributed Energy at the Georgia Institute of Technology in Atlanta, GA. His field of research is in the areas of power electronics, power systems, smart grids and distributed control of power systems. He works closely with utilities, industry and is actively involved in research, teaching, entrepreneurship and starting new ventures.
Gitanjali is VP at Electrovaya and a Mathematical Economist and attended Toronto, Oxford and Stanford Universities; Rajshekar, VP Technology, is a Material Scientist and attended Imperial College, MIT and Cambridge University while Sankar, CEO Electrovaya and Adjunct Prof. University of Toronto, attended Presidency College, Calcutta and Imperial College.
Giandomenico is currently the CTO of ABB India and Head of Group Engineering Council. In his role as CTO for India Giandomenico is contributing to the country’s profitable growth by leveraging local R&D processes and resources in line with the global technology strategy of the Group.
Krishna Vasudevan received his Ph.D. in electrical engineering from IIT, Madras, in 1996. Between 1996 and 1998, he was also Senior Engineer with M/s Lucas TVS Ltd., From 1998 he has been with the Department of Electrical Engineering at IIT Madras, as professor.
Kushant has spent over 16 years developing industry leading technology products and businesses in the hotbed of innovation – Silicon Valley, California. He has incubated and managed global businesses in Asia, Europe and North America with sales up to Rs1000 mio and has hands on experience in manufacturing, R&D and marketing.