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Roy Freeland President, Perpetuum Ltd Chair ISA100.18 Power Sources Working Group. Chair UK Government Energy Harvesting S.I.G EU Zeropower Scientific.

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Presentation on theme: "Roy Freeland President, Perpetuum Ltd Chair ISA100.18 Power Sources Working Group. Chair UK Government Energy Harvesting S.I.G EU Zeropower Scientific."— Presentation transcript:

1 Roy Freeland President, Perpetuum Ltd Chair ISA Power Sources Working Group. Chair UK Government Energy Harvesting S.I.G EU Zeropower Scientific Advisory Committee

2 Standards for WSN Power Sources International Society for Automation ISA100 Family of Standards for Industrial WSN’s a Wireless Standard ISA Power Sources Working Group Key objectives are –Define specifications for the interchangeability of power sources –Use cases in range 0.1mW to 30mW – Including batteries, energy harvesters, and other power sources –Define performance specifications to facilitate comparison and selection of optimum power sources for application. Cooperating with a range of organizations –VDI on battery standards for WSNs –Other organizations using (e.g. WirelessHART, Zigbee) –“Metrology for Energy Harvesting “project (EU funded European Metrology Research Programme (EMRP))

3 No Single Harvester is Universal Solution Easy choice of Power Source is needed Leading wireless instrumentation suppliers have chosen universal system Generic Energy Harvester Adapter Module – GEHAM Enables Plug and Play Interchangeability: Vibration Harvester Thermal Harvester 24V DC 3

4 Standard OEM Battery Module GEHAM Circuit Integrate GEHAM into OEM Battery Module Intelligent Power Module (IPM) Wide range of input voltage levels: 8V – 24V. Integrated robust capacitive storage for duty cycle Intelligent Power Management circuitry Hazardous Zone 0, Class 1 Division 1 Same form, fit & function as original OEM battery module Reduce or eliminate battery change costs & logistics Add energy harvesting now or later Battery Pack to IPM

5 Example GEHAM: Emerson IPM Emerson Intelligent Power Module accepts  Perpetuum Vibration Harvester  Micropelt Thermal Harvester  Perpetua Thermal Harvester  24V DC Others to be added ATEX, IECEx, FM approved  (Not all power sources) 5

6 Example Installations 6 Oxea and Firestone

7 Honeywell Power Module 7  Battery pack - regulated external power input Internal harvester energy storage Replaces the standard IS Battery Pack in a Honeywell XYR 6000 transmitter Accepts external harvester power up to 20V Batteries only necessary for network joining Internal capacitance power for normal radio transmissions With Perpetuum Energy Harvester on a suitable vibration source  Extend battery life >10years  4 second transmitter repetition rate ATEX, IECEx, FM approved

8 Rapid growth in EH powered WSN’s Wireless Sensor Nodes deployed in many new applications Train bearings – many thousands being monitored EH powered self contained WSN  Harvester  ARM processor  RF transmitter Live bearing data available Displayed over Internet Powerful business case  On demand maintenance

9 WiBRATE FP7 Project

10 Performance Standards End Users want to know if Harvester will “work” in their plant Will not know  How much power needed  What energy sources available (heat, vibration etc..)  Characteristics of energy source Performance Standard needs to help select  Harvester Type (Thermal. Vibration etc.) – this problem being solved by GEHAM  Which Thermal/other Harvester will give best power output in particular or all applications So - Easy Task!!!

11 Vibration Harvesters Issues Performance depends on many variables  Type of vibration Sinusoidal fixed /sinusoidal variable/ stochastic/ variable/multi frequency/ other  Magnitude (g)  Nominal Frequency/Frequencies  Variation in Frequency During operation From one machine to another Reference test conditions typical of practical applications (also applies to other harvesters) Measurement of output :  Time to charge energy storage  Output achieved through GEHAM


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