scalable microgridsfor enhancing energy system resiliency
TRANSCRIPT
![Page 1: Scalable Microgridsfor Enhancing Energy System Resiliency](https://reader034.vdocument.in/reader034/viewer/2022042623/6264e2bb4465e1088d613863/html5/thumbnails/1.jpg)
Scalable Microgrids for Enhancing Energy
System Resiliency and Efficiency
Peng Zhang
University of ConnecticutApril. 21, 2014
1
![Page 2: Scalable Microgridsfor Enhancing Energy System Resiliency](https://reader034.vdocument.in/reader034/viewer/2022042623/6264e2bb4465e1088d613863/html5/thumbnails/2.jpg)
Storrs Campus Microgrid
• A Co-Generation Plant
– 3 gas turbines of 7.2 MW each
– 1 steam turbine 5 MW
– 3 emergency diesels 4 MW
• Energy efficiency
– The production of both
electrical and steam allows
over 80% of the fuel energy to
be harnessed, versus 33%
from a conventional power
plant
– Natural gas, a cleaner burning
fuel, is used
2
http://energyservices.uconn.edu/SitePages/Home.aspx; User Name: FAS\PI, Password: Uconn2011
![Page 3: Scalable Microgridsfor Enhancing Energy System Resiliency](https://reader034.vdocument.in/reader034/viewer/2022042623/6264e2bb4465e1088d613863/html5/thumbnails/3.jpg)
Enhanced electricity resiliency
Reduction of outage time by > 98% Assuming UCONN CoGen availability: 98%
Utility grid availability: 99.5% (outage time 43.8 hrs)
⇒ UCONN power supply availability: 0.9999% (outage 0.88 hrs) 3
![Page 4: Scalable Microgridsfor Enhancing Energy System Resiliency](https://reader034.vdocument.in/reader034/viewer/2022042623/6264e2bb4465e1088d613863/html5/thumbnails/4.jpg)
UCONN Depot Campus Microgrid
• UCONN received $2.14M state funding to create a renewable
microgrid in collaboration with Schneider Electric, ClearEdge Power,
and A/Z Corporation
• Advancing Connecticut’s Energy Resiliency – First-in-the-Nation
Statewide Microgrid Program
4BEH Vehicle
PV Array
Fuel Cell
Gasifier
Intelligent
Universal
Transformer
Charging
Station
![Page 5: Scalable Microgridsfor Enhancing Energy System Resiliency](https://reader034.vdocument.in/reader034/viewer/2022042623/6264e2bb4465e1088d613863/html5/thumbnails/5.jpg)
Energy Efficiency
• The fuel cell has generated 6215 MWh of electricity with
a total efficiency of about 55%
• The PV panel has generated 11.8888 MWh of electricity
with a total of 18168 lbs carbon offset
5
Microinverter PVCentralized PV
![Page 6: Scalable Microgridsfor Enhancing Energy System Resiliency](https://reader034.vdocument.in/reader034/viewer/2022042623/6264e2bb4465e1088d613863/html5/thumbnails/6.jpg)
Courtesy: C. Schwaegerl and Liang Tao
![Page 7: Scalable Microgridsfor Enhancing Energy System Resiliency](https://reader034.vdocument.in/reader034/viewer/2022042623/6264e2bb4465e1088d613863/html5/thumbnails/7.jpg)
Overview of Microgrid Benefits
7
Technical Benefits:• Infrastructure resilience
• Energy loss reduction
• Improved power quality
• Congestion relief
• Stabilization of distribution and
transmission
Economic Benefits:• Initiator of local retail and service
markets
• Hedging against risks- price volatility,
outage, load growth…
• Aggregator of supply- and demand
side- players
• Interest arbitrator for different
stakeholders
Courtesy: C. Schwaegerl and Liang Tao
Environmental and Social Benefits:
• Energy saving and carbon footprint
reduction
• Job opportunities
• Electrification of remote area,
transportation…
![Page 8: Scalable Microgridsfor Enhancing Energy System Resiliency](https://reader034.vdocument.in/reader034/viewer/2022042623/6264e2bb4465e1088d613863/html5/thumbnails/8.jpg)
8
Reliability benefit of microgrid options for
selective locations (i.e., town centers or
clusters of critical facilities)
Expected annual outage time under CAT3 storm
(hours/year)
Expected annual outage time under CAT2 storm
(hours/year)
![Page 9: Scalable Microgridsfor Enhancing Energy System Resiliency](https://reader034.vdocument.in/reader034/viewer/2022042623/6264e2bb4465e1088d613863/html5/thumbnails/9.jpg)
99Expected annual outage time under normal
weather
Expected annual outage time under major storm
Expected annual outage time under CAT1 storm Expected annual outage time under Tropical storm
![Page 10: Scalable Microgridsfor Enhancing Energy System Resiliency](https://reader034.vdocument.in/reader034/viewer/2022042623/6264e2bb4465e1088d613863/html5/thumbnails/10.jpg)
Capabilities Covering Key Aspects of Microgrids
10
Theme 1: Seamless power flow and power management
Theme 2: Optimization of microgrid subsystems for efficiency and reliability
Theme 3: Micro/macro grid resilience & sustainability
Theme 4: System-level optimized planning/operation
Theme 5: Commercial viability studies and policy/regulatory research (in collaboration with CCAT)
![Page 11: Scalable Microgridsfor Enhancing Energy System Resiliency](https://reader034.vdocument.in/reader034/viewer/2022042623/6264e2bb4465e1088d613863/html5/thumbnails/11.jpg)
Sample research thrusts
• Ultra-fast Programmable Communication Networks
• Optimal Power Flow in Microgrid
• Robust Integration of Intermittent Renewables
• Distributed Optimization of Microgrids Considering Demand
Response
• Load/Generation Shedding for Microgrid Resilience
• Reliability Characterization of Microgrids
• Resilient DC Cabling Network
11
![Page 12: Scalable Microgridsfor Enhancing Energy System Resiliency](https://reader034.vdocument.in/reader034/viewer/2022042623/6264e2bb4465e1088d613863/html5/thumbnails/12.jpg)
Enabling highly resilient and efficient microgrids
through ultra-fast programmable networks
12
OpenFlow
controller
Microgrid
controller
PVLoad
Fuel Cell
![Page 13: Scalable Microgridsfor Enhancing Energy System Resiliency](https://reader034.vdocument.in/reader034/viewer/2022042623/6264e2bb4465e1088d613863/html5/thumbnails/13.jpg)
Thank you!
13