ESRDC Overview for Load
Management
Dr. Noel Schulz
Associate Professor and TVA Endowed Professorship
Department of Electrical & Computer Engineering
May 21, 2008
ESRDC Renewal Activities
TM
Load Management
Thermal Management
SPS
LM
Ship Electric Power
Systems
Design Tools
Design
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What is Load
Management?
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Load Management is …
• The customer for the other areas
– Design issues related to power to loads
– Pulsed Loads
– Getting power to the right location so the loads can do their job.
• Efficient and Controllable Loads make everyone’s job
easier
• Controls will play a key role related to interaction
between loads and loads and storage
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Reconfiguration
PEBB
Intelligent Agents
Sensors
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Load Management – What is it?
ESRDC Renewal Proposal Fall 2007
Objective
The objective of this task is to assist the Navy in adapting the best
approaches to load management to optimize the cost and
effectiveness of future electric ships. It will do this by taking a
system based view of shipboard electric power, storage, power
distribution, and loads. The focus will be providing information
needed to optimize performance and to clarify the relationship
between the load management system architecture and emerging
technology. The load management system includes the loads
themselves, the power distribution system, power storage and
conditioning hardware, a control system, and protection and
reconfiguration hardware and software.
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Accomplishments from 2002-2007
related to Load Management
• Demonstrated via modeling that large pulsed loads can share
stored energy.
• Developed technology for load shedding and reconfiguration for
damage control and for efficiency optimization.
• Developed hardware and software to monitor load behavior and
incipient failure in electric ship power systems.
• Developed thermal models for major pulsed loads.
• Demonstration of a multi-agent system for load management in
a DC and AC distribution system.
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Areas and Activities of Load Management
Areas
• Propulsion Power
Technology
• Storage Technology
• Stored Energy
Management
• Power Routing
• Power Reliability
• Network Dynamics
Activities
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Motors, Drives and Topologies
Storage types, characteristics,
modeling & simulation
Storage Capabilities – nanosecond to
steady-state
PEBB strategies related to storage
Sensors, Signals and Measurements
Switching Considerations
DC System Dynamics including UPS
Load Leveling
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TM
SPS
LM
Design
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