Speedtronic® Mark V Turbine Control System

BHEL HYDERABADBHEL HYDERABAD

Speedtronic Control SystemSpeedtronic 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.• <BOI>

• Mark V Overview

Mark VPanel BOI

BUNET

Mark VControl SystemComponents

StageLink

Turbine Generator

Control andMonitoring<I>

TMR CONFIGURATION

<R>

Mark VTMR PanelCoresLayout

<S> <C>

<T> <P>

<QD1> <CD>

<PD>

SIMPLEX CONFIGURATION

< R > < C >

< P > < PD >

<QD1> <CD>

<R>

<S>

<T>

<C>

<BOI>

<P>X Y Z

RS-422R>

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>

• <CD> = C’s Digital Cores

• 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

– Q A-D <Q> Core, A,B,C,D 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

Cores

Mark V Overview

Cores and Boards

Mark VCores

Boards Processor Boards Input/ Output Boards Terminal Boards Protective Processors Power Supplies - TCPS

• Mark V Overview

Mark V Control Panel Boards

Location 2Location 3

Location 4Location 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

Mark V Boards

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• Hardware jumper configuration.

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> - Does the voting in TMR applications

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• Auto-Sync in Generator drive applications

• 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 Supply Boards

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 – - <QDn> and <CD> cores for solenoid outputs

<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• Most <I> CONTROL functions available

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• - Control with BOI or anther <I>

<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> CoreDigital Inputsand Outputs

Powersupply

DENET

To <R> core:Transfersinformationbetween cores

From the <PD>core

STAGE LINK

To the <I> forControl InformationData, 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 • <QDn>, <PLU>, <P> Cores

• <R>, <S>, <T> Cores

IONET

To the <QD> and<P> CoresDigital Inputsand Outputs

Powersupply

Field wiring, in and out analog signals

DENET

To other corestransfersinformationbetween cores

125 V DC Power

From the <PD>core

<CD> Core

• Communication Processor Digital I/O Core• 96 Not “critical” Contact Inputs• 60 Not “critical” Contact outputs

<QDn> Core

• Control Processor’s Digital I/O Core

• <Q>‘s Digital I/O

• 96 Critical Contact Inputs• 60 Critical Contact outputs

<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• Auto-Sync in Generator drive applications

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.

Mark IV TMR

<R>

<S>

<T>

STOP

GO

GO

2/3 VOTE GO

HIGHTEMP

Mark IV TMR

<R>

<S>

<T>

STOP

GO

2/3 VOTE

HIGHTEMP

LOWPRESS

STOP STOP

Mark V SIFT TMR

PRE-VOTE

<R>

<S>

<T>

2/3 VOTE

HIGHTEMP

LOWPRESS

GOSTOP SIFT

GO

GO

GO

STOP

GO

MarkV Control Documents

• Control Sequence program and cross reference

• I/O report

• Hardware report

• Alarm list

• MODBUS List