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1 Challenge the future
Research at DC&S
Dr. Laura Ramírez Elizondo
Assistant Professor
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2 Challenge the future
Contents
1. Department of Electrical Sustainable Energy
2. DC Systems & Storage
3. Previous Research
4. Current Research
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3 Challenge the future
Electrical Sustainable Energy
Department Future Electricity Network
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4 Challenge the future
Photovoltaic Materials and
Devices
Intelligent Electrical Power
Grids
DC Systems and
Storage
Our Department Electrical Sustainable Energy
Electrical Power
Processing
D C & S
DC Systems & Storage
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5 Challenge the future
Our Research Topics Electrical Sustainable Energy
Protection, energy balancing, reduction of grid congestion,
storage management
Smart and highly efficient energy
conversion
Power control
Electricity Conversion
Long-distance bulk transmission of electrical energy
(offshore, onshore)
Smart integration of PV systems into
power grid
Solar
Electricity generation from wind energy
and integration into power grid
Wind
Level 1: Strategic objective
Level 2: Power system
Level 3: Materials,
Components
Large-scale integration of RES in global power system (TUD, EWI, ESE)
DC distribution and energy collection, e-
mobility
HVDC DC grids
New materials for and diagnostics of HV components
HV components
Low-loss power semiconductor
devices based on SiC and GaN
Power electronics
High-efficiency Si-based solar cells
New materials for energy conversion
Low-loss electricity transmission
Impact of new technologies (RES,
HVDC, PMU) on grid performance
Si-based solar cells
Super-conductors
Smart grid technologies
Energy materials
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6 Challenge the future
DC Systems & Storage
Research Topics and Facilities
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7 Challenge the future
DC Systems & Storage Expertise/ knowledge / focus (DC&S)
• Characterization and synthesis of insulating materials
• Design of HV components and HV asset management
• Monitoring and diagnostics for (smart) grid applications
• Medium Voltage and Low voltage DC systems
• Smart cities and Electric mobility
• Optimization of renewables and storage for distribution systems
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8 Challenge the future
Previous Research
Multi-carrier Optimization
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9 Challenge the future
Previous: My PhD Research
To develop a scheduling tool for small-
scale systems that contain multiple
energy carriers at district level
(residential) by using the energy hub
approach.
Optimal Usage of Multiple Energy Carriers in Residential
Systems: Unit Scheduling and Power Control
Keywords: multiple energy carriers, micro-cogeneration, optimization, real-time control
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10 Challenge the future
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11 Challenge the future
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12 Challenge the future
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13 Challenge the future
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14 Challenge the future
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15 Challenge the future
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16 Challenge the future
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17 Challenge the future
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18 Challenge the future
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19 Challenge the future
Recent: Zero-Watt Project
• Sponsor: Croon Elektrotechniek
• Objective: To minimize the exchange of power between the grid and a real
building that contains several micro-generation units and a local energy
management system. The building has several urban wind turbines, 130 PV
arrays, a CHP of 5,5 kWe and a battery system of 30 batteries in series.
• Partners: Croon Elektrotechniek, Alphen
• Keywords: autonomous networks, integration of renewable energy, storage
optimization, multi-carrier systems
Croon Elektrotechniek
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20 Challenge the future
Research Areas
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21 Challenge the future
Research Areas DC Grids for Smart Cities, Storage & Electric Vehicles
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22 Challenge the future
• Research Questions:
• How to connect renewable energy technologies via DC to storage (EVs)?
• How to design microgrids for smart cities?
• How to optimize smart cities?
• Challenges:
• Layout and sizing of microgrids (optimal technology portfolio )
• Intelligent power management
• DC Systems with high efficiency – multiterminal, meshed
• DC Components – conversion, circuit breakers, arcing
• Modularity
DC microgrids
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23 Challenge the future
Microgrid Roadmap
AC Microgrids
AC Challenges
DC Challenges
DC Microgrids
• Optimization • Demand-side
management • Intelligent power
management
• Layout and sizing of microgrids
• DC Systems with high efficiency – multiterminal, meshed
• DC Components – conversion, circuit breakers, arcing
• Modularity
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24 Challenge the future
EVs as storage
• (On road) Charging with
contactless (PhD)
• Combination with solar
roads
PV to storage
• PV Supported EV (PhD)
• PV to storage (PhD)
DC neighborhoods
• DC on LV residential level
(PhD)
• DC transformer –
modular (PhD)
Projects about Smart Cities
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25 Challenge the future
Cellular smart grid
• Cells of microgrid (PhD)
modular approach
Storage integration
• EVs integration (PhD)
• Storage recogniton
(modelling)
• PV to Fuell cell
Refurbishing AC-DC
• AC-DC cable
• MV DC link technology
DC connection
Projects about Smart Cities
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26 Challenge the future
Thank you!