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From Local to Global Water Level
Regulation on the Haute-Meuse
River
Mathematical Engineering Department
© M
eu
sen
am
uro
ise
.be
Namur, 2017/11/17
Michel DEHAEN ([email protected])
Luc MOENS ([email protected])
UCL
Modelling
Field Testings
Hydraulic
Process
Model
Validation
Controller Laws
Weir Discharges
Equations
Reservoir
Model
Transfer
Functions
Closed
Loop
Local and Global
Regulation Laws Design
Open
Loop
1D St Venant
Model
NavigationDraft / Air Draft
© Meusenamuroise.be
20 [m³/s] 500 [m³/s] 800 [m³/s] 1700 [m³/s]
Measurement Chains
Telemetry Network
Water Level
Set Point
Progammable Logic Controller
PLC
Continuous Training
Mathematical Engineering Department
© O
ct. 2
017
-Lu
c.M
oens
@uc
louv
ain.
be
Monitoring
Local Operator
Supervisor
Establishement of
Operating Procedures
Hydro Plants
in run of riverMaximum Production
Pools Cascade Weir
Opening
Pool
Automatic
Water Level Regulation
in
Waterways
Riverside Population
IndustriesSecurity / Activities
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© ENGIE Electrabel
Namur, 2017/11/17 3Mathematical Engineering Department
UCL
From Yesterday to Today
Needle Weirs, …
New Weirs, PLC and Control Room :
The PLC was just used as Man-Machine Interface with Sequential Control. Water Level Regulation wasmade by a « Push Button » Controller.
From Local « On/Off Controller » to PI :
From Empirical rules to System Theory to design controllers.
Tuning of Controllers in Cascade,
For Water Level Regulations without dischargeoscillations and amplifications.
Namur, 2017/11/17 4Mathematical Engineering Department
UCL
Local Water Level Control Loop of a « Pool + Weir » System
Z
X
Qin (t)
Zr (t,x)Qr (t,x)
Qw (t)Zupstream(t)
Pweir (t)
PLC
Z* =SET POINT
Namur, 2017/11/17 5Mathematical Engineering Department
UCL
+
Local Water Level Control Loops of a « Pool Weir » System
-
OperatorPERTURBATIONS
CONTROLLER
WATER LEVEL
SET POINT
WEIR POSITION
WATER LEVEL
WEIR
POOL
Pweir (t)
Zupstream(t)
Error(t)Qw (t)
Qin (t)
Z* POOL + WEIR
SYSTEM
Namur, 2017/11/17 6Mathematical Engineering Department
UCL
+
Local Water Level Control Loops of a « Pool Weir » System
-
OperatorPERTURBATIONS
CONTROLLER
WATER LEVEL
SET POINT
WEIR POSITION
WATER LEVEL
WEIR
POOL
Pweir (t)
Zupstream(t)
Error(t)Qw (t)
Qin (t)
Z* POOL + WEIR
SYSTEM
Namur, 2017/11/17 7Mathematical Engineering Department
UCL
Local Water Level Control Loop
Z
X
Qin (t)
Zr (t,x)Qr (t,x)
Qw (t)Zupstream(t)
Pweir (t)PLC
Z* =SET POINT
Pools Cascade
Then, …
cascade of local water level control loops !!!
Namur, 2017/11/17 8Mathematical Engineering Department
UCL
Upstream Water Level Measurement(Controller Input)
G2 P 1G4 G3 G1
Upstream
Water Level Recorder
Sluice
Namur, 2017/11/17 9Mathematical Engineering Department
UCL
Spillway for Overflow(Controller Output)
Namur, 2017/11/17 10Mathematical Engineering Department
UCL
Underflow Gate (Controller Output)
Namur, 2017/11/17 11Mathematical Engineering Department
UCL
From Overflow to Underflow
0 % 100 %OPENING
Spillway
Underflow Gate
Qin
w
0 %
100 %
Q3
Op
en
ing
Namur, 2017/11/17 12Mathematical Engineering Department
UCL
Chooz Floods (Discharge)
DIS
CH
AR
GE
[m³/
s]
Namur, 2017/11/17 13Mathematical Engineering Department
UCL
Semi-global Regulation :Set Point = fn (Q upstream)
= fn(Q in + Q Tributaries)Z*
+
- POOL + WEIR SYSTEM
PERTURBATIONS
CONTROLLER
WATER LEVEL
SET POINT
WEIR POSITION
WATER LEVEL
WEIR
POOL
Pweir (t)
Zupstream(t)
Error(t)Qw (t)
Qin (t)
Z*
Namur, 2017/11/17 14Mathematical Engineering Department
UCL
Set Point = fn (Q upstream)80,15
80,10
80,05
80,00
79,95
79,90
79,85
79,80
Z*
[m D
NG
]
UPSTREAM DISCHARGE [m³/s]
100 200 300 400 500
LA PLANTE
Z* = - a Qupstream + (NFN + x)
Namur, 2017/11/17 15Mathematical Engineering Department
UCL
Matlab Command>> load HtM20141201_20141215.mat>> AxeDataNew
Water Slope = fn (discharge)
Namur, 2017/11/17 16Mathematical Engineering Department
UCL
Water Slope = fn (discharge)
Namur, 2017/11/17 17Mathematical Engineering Department
UCL
Set Point = fn (Q upstream)
Namur, 2017/11/17 18Mathematical Engineering Department
UCL
The Four Gates of Hun Weir witha Micro Hydro Plant in gate 1
+/- 430 [m]
G1 G2 G3
G1
G4
Namur, 2017/11/17 19Mathematical Engineering Department
UCL
Hydro Plant in parallel with a WeirAuthorized Discharge, Compensation and Water Level Controller
+
Pspillway(t)
Oundergate(t)
Qin (t)
Qtributaries(t)
Zupstream(t)
Water LevelSet Point
Water Level Controller (PI)-
Hydro Plant
Weir PLC
Authorized Flow Computing
CompensationQTurbines(t)
ON / OFF turbines
Pool + WeirSystem
e(t)
Namur, 2017/11/17 20Mathematical Engineering Department
UCL
HUN Water Level, Set Point, Spillway Positions
Water Level Regulation
(Small actions) Compensation
(Big actions)
Namur, 2017/11/17 21Mathematical Engineering Department
UCL
Authorized Discharge and Discharges of the Hydro Plant, Hun Weir and Downstream Weir
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UCL
Weir PLC - Input and Output
RegulationParameters
WeirPLC
with
PI ControllerQ Computing
Compensation
DB vnavVia PC104
- Gate Command -
Spillway Opening [cm]Spillway Closing [cm]Under Gate Opening [cm]Under Gate Closing [cm]
HYDROLOGIC DATA via PC104 [m3/s]
- Gates 1 to n -
Spillway Position [cm DNG]Under Gate Opening [cm]Spillway Down End Position Switch [0 / 1]Under Gate Down End Position Switch [0 / 1] Gates Mode [auto; …]
Upstream Water Level 1 et 2 [cm DNG]
- Hydro Plant Informations –
Turbines FlowsPower OutputWatchdog
INPUT OUTPUT
- Informations for the Hydro Plant -
Upstream Water LevelWater Level Set PointAuthorized FlowWatchdog
ALARMS
FROMPLC Hydro Plant
TOPLC Hydro Plant
Namur, 2017/11/17 23Mathematical Engineering Department
UCL
Water Level Regulation in Waterways : Recap
System : Pools Cascade.
Regulation : Upstream Water Level Regulation by Downstream Weir.
(Set Points = fn(Upstream Disharge) ).
Constraints :
- to guarantee draft and airdraft (without overflow on the riverbanks);
- to use the weir as sparingly as possible;
- to regulate the water levels from 20 to 800 [m³/s] (overflow/underflow);
- to manage the turbines flows (authorized flow and compensation);
- to avoid oscillations and amplification of the discharge (in all the pools).
.
100.20
97.2095.00
91.40
88.35
84.00
80.1077.80
105.09
Namur, 2017/11/17 24Mathematical Engineering Department
UCL
Analysis of Regulation Performance
La Plante
Tailfer
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UCL
Local Monitoring in the Control Room
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UCL
Regulation Screen for Local Monitoring
Namur, 2017/11/17 27Mathematical Engineering Department
UCL
Global Monitoring (Web Interface)
Namur, 2017/11/17 28Mathematical Engineering Department
UCL
Conclusions
• Effective Measurements Chains and a Effective TelemetryNetwork are the cornerstone for : Process AutomaticRegulation, Process Monitoring and Models Validation.
• Nowadays, from Hastière to La Plante, the 9 weirs and 3hydro plants are controlled in a automatic way.
• But, local and semi global regulations are tuned to managenatural variations of discharge.
• To go further (global regulation), Perex 4.0 is the key asset !
• And, … Don’t forget Continuous training !
© M
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