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© Siemens Gamesa Renewable Energy S.A
Pythia™ A.I. …a story of digitalization, by SGRE
January 29, 2019
Samuel Tasker
Aftermarket Manager, North America
© Siemens Gamesa Renewable Energy S.ASource: 2017 Annual Report
SGRE at a glance
© Siemens Gamesa Renewable Energy S.A
Artificial Intelligence
The term “Artificial Intelligence” was coined in 1956, at ah historic conference at Dartmouth
But it has only been in the past 10 years, for the most part, that we’ve seen the first truly substantive glimpses of its power and application.
A.I., as its now universally called, is the pursuit of performing tasks usually reserved for human cognition; recognizing patterns, prediction outcomes clouded by uncertainty, and making complex decisions.
Lee, Kai-Fu. “The Four Waves of A.I.” Fortune Magazine, New York, November 2018: 92-94.
© Siemens Gamesa Renewable Energy S.A
Blade condition assessment
Vibration Diagnostics Monitoring
Artificial Intelligence
© Siemens Gamesa Renewable Energy S.A
Artificial Intelligence
Stage 1 – Internet A.I. is powered through the webStage 2 – Business A.I. is algorithms trained on proprietary data setsStage 3 – Perception A.I. gets an upgrade with eyes, ears, and (sensors)Stage 4 – Autonomous A.I. integrates all previous waves
Lee, Kai-Fu. “The Four Waves of A.I.” Fortune Magazine, New York, November 2018: 92-94.
© Siemens Gamesa Renewable Energy S.A
What is Pythia™ A.I. and SGRE’s Vibration Diagnostics?
Pythia™ A.I. is delivered via Remote or Passive Vibration Diagnostics data
• Evaluating over 120,000 components daily
…Continuously investing and improving this detection service as evidenced by backing up data as far back as 2003.
• Pythia™ is agnostic to turbine type.
• Siemens models applied to Gamesa and Suzlon for detection practices with service contracts
• Vibration Diagnostics is a pillar of our service contracts and we extend it if you’re off contract as well ;)
© Siemens Gamesa Renewable Energy S.A
Condition Monitoring Hitrates
Gearbox98,9%
IMS BEARINGS
99,25%
LSS BEARINGS
100%
PLANETARY BEARINGS
94,12%
PARALLEL GEARS100%
PLANETARY GEARS94,29%
HSS BEARINGS
100%
MAIN BEARING99,14%
GENERATOR
94,79%
YAW BEARING
100%
TOTAL
~99%99,94%
© Siemens Gamesa Renewable Energy S.A
Why we believe
Business Case Story: “inspect the pl wheel 2nd stage again.”
© Siemens Gamesa Renewable Energy S.A
Why we believe – Subsurface detection
BACKGROUND lesson
From 4 inspections over a 6 week period, Pythia demonstrated subsurface detection capability.
With subsurface failure profile pictured, Pythia detection is now able to provide accurate and repeatable alerts
…and fast; a typical analysis may take 6-8 hrs to determine what may be wrong for this failure mode
BENEFITS of earlier detection
Larger knowledge window helps planning scarce resources such as cranes and repair specialists around wind or to enable mobilization synergies
More knowledge to control business options proactively instead of decisions during outage
Less onsite inspection demand to use site resources for more critical business needs and reduce turbine visits via fewer false positives
PythiaCase Started
Without Pythia
© Siemens Gamesa Renewable Energy S.A
Why we believe… a practical perspective from a planning manager:
Detection in advance of failures is indeed difficult comparison to make between different site conditions with different equipment models.
Planning benefits from with-in large similar-fleet type include:
- 3-7 months planning windows for gearbox replacements and a current 86% effectiveness at identification while the turbine is still running.
- Allows for coordinating with craneless solution advantages.
- 3- 12 months planning windowns for main shaft/bearing replacements.
- This reduces inventory demand constraints
© Siemens Gamesa Renewable Energy S.A
What is in Pythia’s™ special sauce?
▪Among other characteristics, A.I. is based on a neural network, or deep learning algorithms, running on + 500 TB of data that is equipment agnostic to bring A.I. to practical use
▪The predictive magic simply needs an internet signal or passive data source, and premium monitoring sensor hardware
▪So, what’s a neural network and a deep learning algorithm?
© Siemens Gamesa Renewable Energy S.A
Artificial Intelligence
While human brain tends to focus on the most obvious correlations between the input data and the outcomes, a deep learning algorithm trained on an ocean of information will discover connections between obscure features of the data that are so subtle or complex we humans cannot even describe them logically.
When you combine hundreds of thousands of them together, they naturally outstrip the performance of even the most experienced humans.
A.I. algorithms now beat humans in speech recognition, face recognition, the games of chess and Go, reading MRIs for certain cancers and any quantitative field…
Lee, Kai-Fu. “The Four Waves of A.I.” Fortune Magazine, New York, November 2018: 92-94.
© Siemens Gamesa Renewable Energy S.A
Deep Neural Networks
A visual comparison between a standard PCA and Neural Network illustrates advantages
Classic PCA algorithms giving very early warnings. Dependant on data from faultless state
Deep Neural Network (DNN) giving even earlier warnings. Giving a probabilistic output and not dependant on data from faultless state
2010 2011 2012 2013 2014 2015 2016 2017 2018
DNN PCA FAULT
© Siemens Gamesa Renewable Energy S.A
Practical benefit of Neural Network
WHERE IS BO?
A neural network is merely the concept to help us realize the power of the A.I.
© Siemens Gamesa Renewable Energy S.A
Practical benefit of Neural Network
WHERE IS BO?
A neural network is merely the concept to help us realize the power of the A.I.
It can find answers in things that aren’t as apparent to a human and it can do it in volume
In our data it can see the things we just can’t see
© Siemens Gamesa Renewable Energy S.A
Practical benefit of Neural Network
WHERE IS BO?
A neural network is merely the concept to help us realize the power of the A.I.
It can find answers in things that aren’t as apparent to a human and it can do it in volume
In our data it can see the things we just can’t see
It can do it faster
It can learn and get better from previous experiences
© Siemens Gamesa Renewable Energy S.A
Practical benefit of Neural Network
WHERE IS BO?
A neural network is merely the concept to help us realize the power of the A.I.
It can find answers in things that aren’t as apparent to a human and it can do it in volume
In our data it can see the things we just can’t see
It can do it faster
It can learn and get better from previous experiences
It provides consistent delivery of predictions
And it will make fewer mistakes!
© Siemens Gamesa Renewable Energy S.A
Artificial Intelligence
Lee, Kai-Fu. “The Four Waves of A.I.” Fortune Magazine, New York, November 2018: 92-94.
Because A.I. can be programmed to
maximize profitability or replace
human labor, it adds immediate
value to the economy.
A.I. is fast, accurate, works around
the clock, doesn’t complain, and can
be applied to many tasks, with
substantial economic benefit
© Siemens Gamesa Renewable Energy S.A
What does this all mean to our business in Wind?
Pythia™ and A.I. will see a failure before any other means …before visual inspection and before operational impact
Better prediction maximizes the operating choices for maintenance action and better RUL and lower LCOE
This is too late!!! predictive RUL failure model prototype
© Siemens Gamesa Renewable Energy S.A
Failure prevention vs failure detection
Pythia™ unsurpassed intelligence to predict and prevent is the enhancement behind our standard premium hardware
© Siemens Gamesa Renewable Energy S.A
Consider the difference to your business with your data handling:
Generic Monitoring
▪ Failure recognition
▪ Unable to identify specific failures modes
▪ Limited thresholds limit the decision making window for shutdown
SGRE Vibration Diagnostics & Pythia™ A.I.
▪ Pattern Recognition
▪ Identify specific failure modes
▪ Provides insights to allow larger decision makings windows before shutdown is required
▪ Advancing services for multiple turbine platforms
© Siemens Gamesa Renewable Energy S.A
•Pythia™ is an A.I. ethos embedded in the SGRE service philosophy
•By providing increased up-time, reduction of collateral damages, bundling repair resources, insurance reduction, fewer turbine visits and lower OPEX costs
•After demonstrated methods of prediction and cost controls, we now know this is a critical requirement to extend LCOE to the customer.
• It enables our PROACTIVE capability to make better choices for controlling our business
Summary of our commitment to Pythia™ and A.I.
© Siemens Gamesa Renewable Energy S.A
The evolution of an A.I. masterpieceBEFORE Pythia▪ Human Experts
▪ Manual Evaluations based on
outliers.
▪ Hundreds of evaluations
every day
based on outliers
▪ No early-detection
▪ Advanced models reducing
need for manual evaluation of
all data
The FUTURE of Pythia▪ Virtual Experts
▪ Evaluation by artificial-intelligence
▪ Millions of evaluations every day.
▪ Robust detection and evaluation
of outliers in near real time.
▪ Prognostics predicting remaining
use life time on components and
current reliability.
▪ Proactive and reliability centered
maintenance
With Pythia▪ Human Experts & Vitual
Experts
▪ Semi-automated evaluations
based machine learning
algorithms.
▪ Thousands of evaluations every
day based on outliers
▪ Increased early-detection
▪ 120.000 components evaluated
daily