Speedtronic
®
Mark V
Turbine Control System
BHEL HYDERABAD
Speedtronic Control System
What is a Mark V Control
•
Dedicated Turbine Control system.
•
Part of the Speedtronic family of controllers
•
Microprocessor based
•
Redundant electronic Protection systems
•
PC based interface.
•
Mark V Overview
Mark V
Panel
BOI BUNETMark V
Control System
Components
Stage Link Turbine Generator Control and Monitoring <I>TMR CONFIGURATION
<R> Mark V TMR Panel Cores Layout <S> <C> <T> <P> <QD1> <CD> <PD>SIMPLEX CONFIGURATION
< R > < C >
< P > < PD >
<R>
<S>
<T>
<C>
<BOI>
<P>
X Y ZRS-422
R>
DENET
ARCNET
IONET
>
<I>
MARK V TMR CONFIGURATION
•
<B> = Combined term for <C>, <D>.
•
<I> = Operator Interface
•
<P> = Collective term for <X>,<Y>,<Z>
•
<Q> = Collective term for <R>,<S>,<T>
•
<QD> = Q’s Digital Cores
–
<QD1>
–
<QD2>
•
TCQA, TCQB,TCQC, … I/O Boards
•
TBQA,QTBA,TBQB,TBQC,TBQD… Terminal
Boards
•
SDCC = Salem designed Drive Control Card, the
control processor board
•
SLCC = Salem designed LAN Control Card to
exchange information between processor via the
DENET.
What’s in a name
•
TC xx
Turbine Control
–
EA
Emergency(<P>) Core A Version
–
DA Digital Core(<QD>,<CD>)
–
Q A-D Q cores, I/O Boards, different versions
–
C A-C C Core, I/O Boards, different versions
–
TG, L,S P Core, Trip Board
•
x TB x Terminal Board
–
C A <C> Core, A Version
–
Q A <Q> Core, A Version
–
P A <P> Core, A Version
–
D A Digital cores, a version
•
TB xx
Turbine Board
–
C A-C
<C> Core, A,B,C versions
Mark V Overview
Mark V
Panel
Communication <C> and / or <D> Control <R>, <S>, <T> Protection <P>Digital inputs / Outputs <CD>, <QDn> Power Distribution <PD>
Extended I/O Cores - LM only -- “<S>“
Cores and Boards
Mark V Overview
Cores and Boards
Mark V
Cores Boards
Processor Boards Input/ Output Boards Terminal Boards
Protective Processors Power Supplies - TCPS
•
Mark V Overview
Mark V Control Panel Boards
Location 2 Location 3Location 4 Location 5 Location 1 Location 6 Location 7 Location 8 Location 9 Back Bottom Front Top
•I/O Terminal Boards
• I/O Boards
• Processor Boards
-
Drive Control Cards SDCC or DCC
- LAN Control Cards SLCC or LCC
• Protective Processors
- <X>, <Y>, <Z>
• Power Supply Boards
• Power Distribution Board
I/O Terminal Boards
•
Few Active components
•
Hardwire jumper configuration
•
I/o device direct termination
I/O Boards
•
Functions
• Converts “real world” signals to/from digital signal for the processors
• Scale and condition I/O signals
• Servo Valve output regulation
•
I/O configuration software
•
I/O configuration constants
Processor Boards
• (S)DCC Drive Control Cards
- Location 1 <C>, <D>, and <Q> Processors
- Executes the Control Sequence Program for each`
Processor
• (S)LCC - LAN Control Cards
- Transfer Digital information between Processors
- Passes data to <C>‘s SLCC, then to <I>
Protective Processors
•
TCEA Boards
• Location 1, 3 & 5 of <P> Core
• Emergency Over speed Protection
• Master Protective Trip Circuit (the 4’s)
• Generator Circuit Breaker Close Circuit
• UV Flame Detectors Power Supply and
Input Conditioning Circuits
•
TCPS
•
Location 5 <C>, <D> and <Q> Processors
•
Powers DCCs and I/O Boards
•
Input: 125 VDC
•
Outputs:
–
- +/- 24 VDC
– - +/- 15 VD
– - +/- 5 VDC
Power Distribution Board
•
TCPD Board
•
Located in <PD> core
•
Distributes 125 Vdc to:
– - Power Supply Boards for <C>, <D>, <Q> Core
– - Protective Processors
– - PLU Processors
<BOI>
•
Back Up Operator Interface
•
Can be used to control the turbine in
•
emergencies or other situations
•
User defined menus
•
Must be located within 50 feet of panel
•
Must be ‘initiated’
•
Cannot be locked out or password
•
protected
Control Basics
•
<I> Configures Mark V -- user must download
•
configuration files to EEPROM in panel
•
The <I> knows signal name and addresses
•
(memory location) in Mark V
•
Mark V Knows only addresses and values
•
<I> asks Mark V for values by address
•
Mark V normally sits silent, waiting for a request
•
from <I>
•
<I> NOT critical to system operation
• - <I> does no sequencing, just display & control
• - Mark V runs at last good value if <I> does
<C> Communication Processor
•
“Translates” information between the
Operator Interface ( <I> ) and the Control
Processors (<R>, <S>, <T> )
•
Handles Analog I/O and, via the <CD> core,
•
Handles the Digital I/O
•
<C> has some sequencing (Back - up
primary over speed calculations)
•
<C> may have critical sequencing in some
Simplex or other applications
•
<C> Core
IONET To the <CD> Core Digital Inputs and Outputs Power supply DENET To <R> core: Transfers information between cores From the <PD> core STAGE LINKTo the <I> for
Control Information Data, Alarms, Configuration Info
<R>, <S>, <T> Cores
•
Control Processors
•
Use the CSP to do:
•
- Critical Control Sequencing
•
- Primary Protection Sequencing
•
SIFT and Vote the data
•
Critical Analog I/O
•
Sync Check for Generator Drive Turbines
•
Communicate with their components in
•
<R>, <S>, <T> Cores
IONET To the <QD> and <P> Cores Digital Inputs and Outputs Power supplyField wiring, in and out analog signals
DENET To other cores transfers information between cores 125 V DC Power From the <PD> core
<CD> Core
•
Communication Processor Digital I/O Core
•
96 Not “critical” Contact Inputs
<QDn> Core
•
Control Processor’s Digital I/O Core
•
<Q>‘s Digital I/O
•
96 Critical Contact Inputs
<P> Core
•
TCEA Boards
•
Location 1, 3, & 5 of <P> Core
•
Emergency Over speed Protection
•
Master Protective Trip Circuit (the 4’s)
•
Generator Circuit Breaker Close Circuit
•
UV Flame Detectors Power Supply and
•
Input Conditioning Circuits
ADVANTAGES OF MARK-V OVER MARK-IV
• MARK-V HARDWARE HAS BEEN BUILT WITH STATE OF THE ART TECHNOLOGY AND 16 BIT MICROPROCESSOR.
• PROTECTION FUNCTION BEING EXTREMELY CRITICAL IS REALISED IN INDEPENDENT TMR<P> CONTROLLER.
• OPERATOR INTERFACE IS EASIER AS IT IS THROUGH A PC BASED <I> STATION WITH 19”
• VGA COLOUR GRAPHIC CRT, 101 FUNCTION ASCII KEYBOARD AND TRACKBALL. THE
• MARK-V PANEL IS LOCATED AS A SEPARATE FREE STANDING PANEL AND THE <I>
• STATION IS PLACED ON TABLE TOP AT A CONVENIENT LOCATION AWAY FROM THE
ADVANTAGES OF MARK-V OVER MARK-IV
• PANEL. AS A BACK UP TO THE <I> STATION, A SOFT KEY TYPE BACK UP OPERATOR. INTERFACE IS MOUNTED ON THE PANEL FRONT DOOR TO PERFORM CRITICAL FUNCTIONS.
• SYSTEM IS FAULT TOLERANT, ACHIEVED THROUGH SIFT (SOFTWARE IMPLEMENTED FAULT TOLERANCE), THEREBY
REDUCING THE LIKELYHOOD OF SPURIOUS TRIPS AND GREATLY ENHANCING THE SYSTEM AVAILABILITY.
• ALL INTER-CORE CONNECTIONS ARE THROUGH FLAT CABLE. THIS AGAIN INCREASES THE SYSTEM AVAILABILITY AS IT ELIMINATES POSSIBILITY OF WIRE BREAKAGE AND LOOSE
TERMINATION THAT IS GENERALLY ASSOCIATED WITH DISCREET WIRING.
• CONNECTIVITY TO EXTERNAL SYSTEMS IS IMPROVED AS IT IS THROUGH MODBUS LINK.
• THE SYSTEM IS MORE COMPACT THEREBY REDUCING THE DIMENSION OF PANEL.
