Vibrational energy harvester system integration use cases ...
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Vibrational energy harvester system integration use cases & commercialization considerations Presented By Keith Abate/Roy Freeland, Perpetuum Ltd. [email protected] [email protected] Industry Session 5: Energy Harvesting Tuesday, March 6, 2018
Transcript of Vibrational energy harvester system integration use cases ...
Vibrational energy harvester system integration use cases & commercialization considerations
Presented By Keith Abate/Roy Freeland, Perpetuum Ltd.
[email protected] [email protected]
Industry Session 5: Energy Harvesting
Tuesday, March 6, 2018
Introduction
• Wireless Sensor Nodes (WSN) have exceptional benefits for IOT
• Power with Batteries or Energy Harvesters• Maintenance Free Energy Harvesters are viable in
many applications • EH eliminates the reliability and maintenance
issues of batteries• Examples of successful high volume applications
I.o.T. Characteristics
• Sensor• Microprocessor• Self Powered - Energy Harvester (no batteries)• Mobile Platform (to make it more difficult)• Wireless Data Transmission to Cloud Server• Automatic alarms• Information available over the internet
Energy Harvesting Requirements
• Suitable source of energy to be harvested• Vibration• Light• Heat• Transmitted Power
• Power Management• Extraction of Power from Harvester• Energy Used by WSN
• Duty Cycle Energy Storage
Example Installations – GE, Emerson WSNs
mW to Monitor MW - Power Generation Plant
Wireless Sensor Node
Harvester
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Bat
tery
Lif
e (Y
ear
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Update Rate (Secs)
With Harvester
Battery Life (Derated)
Battery Life (Max)
Impact of Using Harvesters
Important Improvements using Energy Harvesters
No battery changes needed for 2 sec Update Rates
Battery life increases from under 2.5 to 15 years @ 1 sec Update Rates
System Design Steps
• Select Energy Source• Thermal• Vibration• Solar • etc.
• Determine Power Required• Duty Cycle Energy/Frequency
• Laws of Physics?
Harvester Interchangeability
• WSNs can be powered by different types of EH• Needed Interchangeability
• Isa 100.18 Power Sources for WSNs• Now IEC 62952Power sources for a wireless
communication device –• Part 3: Generic energy harvesting adapter module
published June 2017
Intelligent Power Module
Standard OEM Battery Module
(Emerson)
Energy Harvesting Adaptor Module
Integrate GEHAM into OEM Battery
Module
Intelligent Power Module (IPM)
• Capability: Battery powered WSN’s to use external power sources• Flexible Voltage: Wide range of input voltage levels: 8V – 24V.• Power Available: Integrated robust capacitive storage• Intelligent: Intelligent Power Management circuitry• Safe: Intrinsic safety designed in. Zone 0, Class 1 Division 1• Convenient: Same form, fit & function as original OEM battery module• Economics: Eliminate battery change costs & logistics for > 10 years
Enables interface of WSN wireless transmitter to multiple external energy harvesting sources and 24V DC power.
Power Puck® Energy Harvesters
Thermoelectric power
solutions for
Emerson Rosemount 3051S Transmitters
© 2013 Perpetua Power Source Technologies, Inc.
Power Puck®
Model 9-IS
Thermal Harvester Applications
Design Issues
• Extracting Sufficient Power• Max Power Point Tracking• Rectification• Impedance
• Energy storage• Charge/discharge cycle life• Storage life • Capacity • Leakage • Temperature range
Challenging Application - Trains
Wireless Sensor Node:Vibration &Temp SensorsEnergy HarvesterMicroprocessorWireless Transmitter
Objective – Condition Based Maintenance
Higher Power Implications
Mature Energy Harvesting Technology High harvested power
Reliability in high shock environment
High power enables Rich Data Frequent measurements to give better trending for
fast & accurate fault identification
Margin for when train is slow moving of stationary
Better positional accuracy
Better safety and reliability of the rail network
High power provides Future Proofing Provision of channel for additional 3rd party sensors
More data transmission to server allows better algorithm development
Spare power for future applications
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High Power
Rich Data
Best Safety & Reliability
Future Proofing
Communications
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Wireless Sensor Node
Data Concentrator (DC)
Data Download Via Cellular Network
PerpetuumAlgorithms
Simple, Actionable
Customer Alerts
Simple Display of Key Information
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Key Data on Bearing, Wheel
etc
Colour coded Display
GPS Data
Bearing Degradation
3 Months
Track Features
Rail Break
Dip in Track Rail twist
Result of
Tamping Works
Track Dip
Live Monitoring on Trains
Axle Bearings
Wheels
Gearboxes
Traction Motors
Track
Cows
Energy Harvesting
• Now mature technology• High Volume Applications• Maintenance Free I.o.T.• Keys to Success
• Adequate Power Generation• Management of power• Storage of Energy
Cow on Track – Train in Field
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Vib
rati
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/G
Time
375703 - Vibration Level over Time
VibrationA
VibrationB
