power plant control
TRANSCRIPT
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CLOSE LOOP CONTROL SYSTEMAND
STATION C&I DDCMIS
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DDCMIS SYSTEM
Process I/O Level
Process Control Level
Management Level
DRIVES
MEASURING
INSTRUMENTS
OTHERPROCESS
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INSRUMENTATION IN POWER PLANT
• Temperature - T/C & RTD
• Pressure
• Level - DP / Displacement / Hydra Step Drum Level Indicator
• Flow - DP / Annubar / Mag-flow
• Turbine Supervisory - Vibration/ Expansion/ Axial Shift/ Eccentricity
• Steam & Water Analysers - Conductivity/ pH/ DO2/ Silica
• Gas Analysers - O2/ CO2/ CO (in Flue Gas) Pollution Monitor H2 Purity (in Generator)
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INSTRUMENTS TO DDCMIS
Control Network(INFI-NET)
Harmony Consoles
H-Net
Bridge Controller
Bridge Controller PBAs
Harmony IOR
Gateway S800 I/O
Cluster Modem
Optical ModulebusModulebus Repeater
M1
M2
X1
X2
Chan A
Chan B
BB
AA
M1
M2BA
S800 I/OCluster Modem
Harmony Engineering
Tools
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DDCMIS OPTIONS
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PLANT TO MANAGEMENT CONNECTIVITY
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DDCMIS OPTIONS
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CONTROL SYSTEM
IntroductionSystem – An interconnection of elements and devices for a desired purpose.
Control System – An interconnection of components forming a system configuration that will provide a desired response.
Process – The device, plant, or system under control. The input and output relationship represents the cause-and-effect relationship of the process.
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Introduction
Multivariable Control System
Open-Loop Control Systems utilize a controller or control actuator to obtain the desired response.
Closed-Loop Control Systems utilizes feedback to compare the actual output to the desired output response.
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EXAMPLE:- PROCESS CONTROL
Water-level float regulator
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Examples of Modern Control Systems
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Examples of Modern Control Systems
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POWER PLANT PROCESS CONTROLCOORINATED MASTER CONTROLAIR AND FUEL FLOW CONTROLDRUM LEVEL/FEED WATER CONTROLSH/RH TEMPERATURE CONTROLFURNACE DRAFT CONTROLHEATER LEVEL CONTROLMILL AIR AND TEMPERATURE CONTROLPA HEADER PRESSURE CONTROL
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THANK YOU