IEEE Electrification Magazine - March 2015 - 84

activities in Canada. The presentation highlighted the
training of highly qualified personnel in the field of
microgrids through a Canada-wide five-year program that
involves multiple universities, power utilities, and industry
through a Canadian federally funded Strategic Network
Grant. In the third presentation, Guillermo Jimenez from
the University of Chile provided a survey of microgrid RD&D
in Latin America, with a focus on microgrid opportunities in
the region and the design aspects of a Chilean microgrid.
The second part of the session included two presentations. In the first, Ross Guttromson introduced terminology,
technology and resiliency-enhancing analysis tools, performance matrices, and example applications in New Jersey.
The focus was on the New Jersey Transit Microgrid and the
City of Hoboken Microgrid. In the second presentation, Mark
McGranaghan from the Electric Power Research Institute
delivered a visionary presentation that highlighted the role
of microgrids as a means to address a wide host of challenges of the next-generation electric power grids. The presentation revealed microgrid control requirements and the role of
smart inverters in this context as well as future power grid
challenges, such as interoperability, distributed control and
integration, monitoring, sensors, data processing, and modelbased management.

remote Session
The Remote Session always focuses on the RD&D of autonomous microgrids. This year's session included four presentations, from China, Canada, Africa, and Singapore. The first
speaker, Haijin Li, from Zhejiang University, China, presented
the concept of a multiple-source super-uninterruptible power
supply (UPS). The reported research aims to obtain a highly
reliable UPS by combining multiple generation, storage, and
power-conversion technologies. The modeling and experimental results of several architectures allow selection of the
optimal option based on the efficiency, reliability, and cost.
The second presenter, Jose Daniel Lara, from the University of Waterloo, Canada, reported on the importance
of a robust optimization approach for energy management systems suited for isolated microgrids. The mathematical model developed has been tested using realistic
microgrid configurations.
The third speaker, Xavier Vallve, from Trama Tecno
Ambiental S.L., Spain, focused on rural African microgrids.
Based on a demonstration project involving three villages
in Chad, he highlighted the importance of organizational
and regulatory issues. Some innovative aspects were the
regulatory role of the community and the concept of an
energy daily allowance to control load uncertainty.
The last presenter, Markson Tang, from Daily Life
Renewable Energy Pte. Ltd., Singapore, described rural
microgrids with high renewable-energy penetration and
distributed generation and their high market potential in
developing countries. Showing the results of the Pulau
Ubin microgrid test bed, with an aggregate of 100 kWp PV,
1-MWh storage, and six 40-kVA gensets, highlighted some

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I E E E E l e c t r i f i c ati o n M agaz ine / March 2015

innovative components such as variable-speed generators
and advanced control strategies.

Europe Session
The European Session started with the presentation "Business Cases for Microgrids" by Pierluigi Mancarella, University of Manchester, United Kingdom. The main questions
debated were: Where is value extracted from the
microgrid, and how is the value dispersed among the
actors? The vision presented is that the value of microgrids
goes far beyond retail electricity markets to microgridenabled smart grids. Microgrids can offer multiple electricity services, for power and ancillary services and not only
energy, facilitated by and along with information and communication technology. A case study application of 50 wellinsulated apartments concluded that most benefits come
from networked effects of multicommodities.
Alexandre Oudalov from ABB Switzerland focused on
microgrid storage integration with emphasis on battery
modeling and advanced control. He provided an overview
of battery technologies and costs and he presented the
lithium-ion battery aging model. He stressed the importance of including battery aging models in the design
(battery type, capacity, and control strategy selection) and
operation (corrective actions in case of deviations from
the targeted aging trajectory) as well as in optimal battery control.
Panagiotis Moutis presented results from a U.K. project
implemented by the University of Greenwich and Arup,
"Residential Community-Based Commercial Realization of
the Microgrid Concept." The value of the planned community microgrid design compared to retrofits was stressed. The
residential community studied comprises 1-MVA loads,
250-kVA combined heat and power, 180-kWp PV, and a
200-kW battery inverter. For its operation as a prosumer, a
day-ahead hourly schedule of loading/generation is optimized by the application of decision trees on Monte Carlo
simulations of reserves.

Standards Panel Session
In the Asia section, Gengfeng Li, Xi'an Jiaotong University,
covered IEC TC8/WG7, General Planning, Design, Operation
and Control of the Microgrid. This activity started in March
2014 and is now developing a committee draft. The second
presentation by Prof. Se-Kyo Chung, Gyeongsang National
University, addressed microgrid standardization and energy-storage systems in Korea. Standardization activity is
under a subdivision of the Smart Grids Standardization
Forum and now in the final of its three phases. Hirohisa
Aki, National Institute of Advanced Industrial Science
and Technology, discussed demand-side resiliency with
distributed resources and microgrids. He announced that
the IEC has published a white paper, "Microgrids for
Disaster Preparedness and Recovery." He also talked
about three best practices on microgrids, including the
Sendai Microgrid.



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