operational safety of dams and reservoirsswedcold.org/d68a temadagar/2017-1/03a.pdf · hoist"...
TRANSCRIPT
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
Operational safety of dams and reservoirs
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
Sponsors (alphabetically)BC HydroOntario Power GenerationUS Army Corps of EngineersVattenfall
Project ManagerMona Bechai, Mobec Engineering
Working group (alphabetically)Romanas Ascila, VattenfallGregory Baecher, University of MarylandDes Hartford, BC HydroBob Patev, USACEKarl Rytters, Sekond APAndy Zielinski, OPG
Operational safety of dams and reservoirs
system issues of dam safety
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
4
Concept
0"
5"
10"
15"
20"
25"
30"
Structural" Gates"inoperable"
Control"system"error"
Operator"error"
Cable/chain"failure"
Hoist"mechanism"
Power"supply"
Num
ber"of"incide
nts"or"failures"
No"Impact/Unknown"
Dam"Failure"
Uncontrolled"Release"
Source: Martin McCann NPDP 2016
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
5
Concept
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
Concept
Summer of 2008
Summer of 2013
Identical flow conditions in 2008 and 2013, but entirely different generation profile in response to market pricing.
Source: Tony Bennett OPG
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
Probabilistic risk analysis
Concept
INPUTS: StochasticReservoirinflow
OUTPUTS:Controlled outflow
& power generation
OperatingSystem
DISTRUBANCES:Debris
IceEarthquakes
Landslides[…] Opera&ng)
systemDisturbances
Outputs
Inputs
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
Operational risk assessment
8
Concept
MANAGEMENTPolicy & plans
OPERATIONS
STAFFControl Actions Data
Reports
Controlvariables
Performanceindicators
Controls
DisplaysHumanoperator
Automated8controller
Opera: ng8sysetm
Sensors
Actuators
Disturbances
Outputs
Inputs
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
Operational determinants of incidents and failures
Incidents and failures are not usually caused by extreme eventsOperational issues are more often to blame
Systems issues of dam safety
Who else is going this way?
–Chemical industry
–Civil and military aviation
–Coastal storm protection
–Nuclear power
–Offshore oil & gas
Concept
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
Systems
RESERVOIR
POWERHOUSE
U/S INFLOW
CATCHMENT
D/S CHANNEL
BOTTOMOUTLET
SPILLWAY CAPACITY:Wat er LevelDebr is, IceCondi t ion (Maint enance)
Aux.
Forecast
SCADA
ControlManual / Auto
Operator
Ener gyDspn
DISCHARGE RATE:Infl ow - Wat er LevelSpw capaci t yP/s capaci t yEner gy dissipat ion capaci t y
Sensor s
FACTORS:LoadsSt r uct ur e r esponseCont r ol sHuman oper at ionsO&MMal icious in t ent
Reser voi r :LevelIceDebr isWaveSediment s
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
11
Systems
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
Dam safety considerations in the Campbell River system
Systems
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
Gate (un-)reliabilityDehli Dam, USA, 2010
–Embankment dam with concrete cutoff wall
–3 (25 ft x 20 ft) vertical lift gates (maintenance problems)
–Only two gates could be opened
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Systems
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
Humans in the loop
External:
–Situational Characteristics (e.g., Quality of the Work Environment)
–Task and Equipment Characteristics (e.g., Continuous, Dynamic, Step by Step Sequential, static)
–Job and Task Instructions (e.g., Operating Procedures)
Internal:
–Psychological Stressors (e.g., Task Load)
–Physiological Stressor (e.g., Fatigue)
–Organizational Factors (e.g., Previous Training/Experience)
14
Systems
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
Simulation of operations
Slide 15
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
Simulation of operations
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
Simulation of operations
X1
X2
Performance Gates
Tracked Variables
X3
X4
X5
X6
X7
t0 t1 t2 t3 t4 t5 t6
X1
X2
Tracked Variables
X3
X4
X5
X6
X7
t0 t1 t2 t3 t4 t5 t6
X1
X2
Tracked Variables
X3
X4
X5
X6
X7
t0 t1 t2 t3 t4 t5 t6
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
Current projects
• Mattagami River (OPG)• Matawaska River (OPG)• Göte River (Vattenfall)• Wolf Creek Dam (USACE)• John Day Dam (USACE)• Missouri River main stem dams (USACE)• Campbell River (BCHydro)• Chao Phraya Basin (Thailand)
18
Simulation of operations
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
19
Mattagami River system
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
20
Mattagami River system
OUTLINE
1. Concept2. Systems 3. Simulation4. Mattagami5. Path forward
OPERATIONAL
SAFETY OF
DAMS AND
RESERVOIRS
Mattagami River system
Slide 21