PHM Application for Utility-scale Wind Turbines
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Performance Health Monitoring application for utility-scale wind turbines presentation at IEEE conference by Brogan Morton.
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Blade-less Wind Turbine
A miracle! A Wind turbine producing electricity without BLADES.It can be of any size from cabinet to skyscraper size.
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Motors convert electrical energy to mechanical energy while engines convert chemical energy. The document discusses various motor types including induction, synchronous, single phase, and universal motors. It describes motor parts like the stator, rotor, and bearings. Motor speed, torque, power, and efficiency are defined. Advantages and disadvantages of different motor designs are provided.
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Pneumatic rotary actuators
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Motion Control Theory. servomotor
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Stepper motor Presentation
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4: Energy Management in Water Supply Systems - Motors
Electric motors are major electricity users. Implementing efficiency improvements in motors and motor systems can help reduce electricity demand. Key opportunities include installing energy efficient motors, power factor correction, soft starters, variable speed drives, and optimizing motor sizing and loading. Regular maintenance and proper part selection can also improve system efficiency. Overall, analyzing motor and process needs can identify the most cost-effective efficiency measures for a given water supply system.
Chaindrives
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This document provides information about stepper motors, microcontrollers, and a stepper motor control project. It includes:
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- 1. PHM Application for Utility-scale Wind Turbines Brogan Morton, NRG Systems
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- 3. Why Health Monitoring? • Not driven by safety or operational effectiveness • It’s about the bottom line – Cost Avoidance • Maintenance Cost Optimization – $150k gearbox + $100k crane call – $30k-$50k uptower replacement • Prevent failures by finding failure drivers – misalignment, imbalance, etc.
- 5. Operational Cost Drivers 35% to 45% of OPEX
- 6. Maintenance Drivers Drivetrain causes 50% of downtime
- 7. Typical Drivetrain Layout Doubly-Fed Induction Generator 3 Stage Gearbox - (900-1600 RPM) 1 planetary / 2 helical (80:1 - 100:1 ratio) Hub & Rotor (12-20 RPM)
- 8. Typical Drivetrain Layout Generator High Speed Shaft 3-stage Gearbox Main Bearing Int. Speed Shaft Main Shaft Low Speed Shaft •17 Bearings •9 Gears •8 Shaft
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- 10. Systems Considerations • Turbines are difficult to access – Climb an 80m (262 ft) tower then hoist tools – Hand-held CMS incurs a large labor cost
- 11. System Considerations • IT Infrastructure – Down-tower connection – Local network infrastructure – NERC Critical Infrastructure Protection (CIP) – Operation network security (AIC vs CIA)
- 12. Operating Conditions • Large variations in Main Rotor Speed speed – DFIG – Tower Shadow – Wind Shear Profile • Large variations in torque/power – 10% - 105% of rated
- 13. Knowledge Creation Manually translating data into a diagnosis for every turbine has a large cost! Which is most useful to an operator? • 01000011 01101000 01100001 01101110 01100111 01100101 00100000 01101101 01100001 01101001 01101110 00100000 01100010 01100101 01100001 01110010 01101001 01101110 01100111 • 43 68 61 6e 67 65 20 6d 61 69 6e 20 62 65 61 72 69 6e 67 0d 0a • Change main bearing
Editor's Notes
- Example of the maintenance strategies is changing the oil in your car:Reactive – this is driving your car off the lot and never changing the oil until the engine seizes. PROS: Low effort, minimum amount of maintance CONS: Lot of collateral damage, increased downtimePreventive – this is how most people change their oil, every 3000 miles. PROS: Fewer failures CONS: parts ‘waste’, more planned maintenance, still get some ‘early-life’ failuresPredictive – many vehicles now have oil life sensors that tell you when to change the oil. PROS: Most efficient methods, highest up-time CONS: Level of effort required to know component condition
- O&M costs are 35%-45% of a wind farms operating budget when the turbines come off warranty.Minimizing these cost directly affects the bottom line of the wind farmThis data is from one of the top 10 wind asset owners in the US