sistema de control avanzado y segregación de carga · sistema de control avanzado y segregación...

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Sistema de Control Avanzado y Segregación de Carga

Descripción sistema SECA / SEVA

Por medio de un selector del punto de ajuste, el

operador determina, el valor actual de recepción o de

entrega de energía.

Los consumidores de la refinería se dividen,

conforme a su importancia en consumidores

desconectables y no desconectables.




Controles de subsistemas

Análisis básico de los procesos fundamentales de la planta de fuerza.



Para la segregación de carga se calculan constantemente el consumo propio y la potencia de reserva de la refinería, así como también la potencia actual de los consumidores desconectables.

De tal forma, cuando se presentan fallos mayores, el sistema de segregación de cargas desconectará selectivamente los consumidores necesarios para compensar las siguientes perturbaciones:

• La caída de presión en el cabezal de vapor de 60 y 19 bar.

• La recepción de m ás potencia eléctrica de lo autorizado por CFE.

• La caída de la red eléctrica en el modo de funciona miento es isla de los turbogeneradores.





Medidas en caso de falta de potencia eléctrica

1. Siempre que sea necesario, se reducirá la potencia eléctrica que se entrega a la CFE al valor mínimo que el operador haya ajustado en el sistema de monitoreo, por lo que en caso de ser necesario se consumiráenergía de CFE.

2. Si la aplicación de la medida anterior no es satisfactoria, la segregación de carga eléctrica actúa desconectando consumidores eléctricos siguiendo la prioridad fijada y conforme a los tres modos establecidos.





El sistema de segregación de vapor (SEVA) se diseño con el fin de la actuación para la estabilidad del consumo de vapor, este sistema necesita(ria) instrumentación y elementos finales de control para controlar el vapor a las plantas de proceso (en el limite de batería) que son:

• Medición de temperatura de vapor• Medición de presión de vapor• Medición de flujo de vapor• Válvulas de corte de vapor

Se planeo en la estrategia de control una operación similar al del SECA (adecuado a un proceso más lento). Lamentablemente no pudo implementarse en todas y cada una de las refinerías, por lo que la actuación de sistema SEVA se restringió al control de generación de vapor general y al de control de las reductoras de presión.





Ext. Unit Envío deInformación

PantallasGigantes

Clientesligeros

Apllication Highway

Automation Highway

PUFT SRV

PUFT SRV PUFT SRV

T3000T3000

Ms

Ms

T3000T3000 Control

Eq. Aux.Control deCaldera yQuemadores

T30000T3000 Control

Maestrode Carga y Vapor

TELEPERM XPTELEPERM XP SECA

SEVA

Ms

PUMIG SRV


Concepto SCOA / SECA: Configuración Básica

T3000 IO´s

T3000 IO´s

T3000 IO´s

SE 1

SE 2

.

.

.

SE N

.

.

.



I.VI Ejemplos




Ejemplo de controlador continuo en tecnología Siemens


Ejemplo de controlador PID




Ejemplo pantalla agua de alimentación




Ejemplo esquema aire y gases




Ejemplo combustibles y control de caldera




Ejemplo control maestro de carga




Dinámica sistemas de generación eléctrica

Control Maestro Eléctrico, cálculo del valor de ajuste o consigna de carga hacia los turbogeneradores




Dinámica sistemas de generación de vapor

Control Maestro de Vapor parte. Ejemplo Salina Cruz en sistema T3000




Arquitectura actual sistema SCOA con SPPA-T3000



CT Lerdo, Durango, MCT Lerdo, Durango, Mééxico Marzo 2010xico Marzo 2010



VII Beneficios




…

A :Una única plataforma con multiples vistas de la planta.

A: Un sistema fácil operado porventanas.

A: Un sistema inteligente con toma dedecisiones en tiempo real.

A: Simulación de cambios antes de la descarga y análisis regresivo.

A: Sistema integrado basado en Web

De: Múltiples sistemas y plataformas

De: Entrenamiento extensivo al usuario

De: Sistema de toma de decisión que necesita mucho tiempo

De: Impactos de cambio de lógicaconocidos después de la descarga

De: Un sistema analógico /digital


El nuevo SCOA / SECA basado en SPPA-T3000



Alta flexibilidad para cubrir la demanda de energia eléctrica y vapor de la Refinería

Incremento de disponibilidad de las instalaciones productivas

Capacidad suficiente para cubrir eventos de fallasy mantenimientos de equipos principales

Eliminación de altos costos de importación de energía eléctrica


Beneficios



VIII Gestión de

plantas de energía

(Plant & Fleet Management)




� Increased productivity by actual information on the plant and operation

� Increased reliability , availability and safety of the plant

� Optimizes usage from consumable spares

� Continuous improvement of the quality and safety of the work due to maintenance strategies

� Interfaces to all needed applications (e.g. PLC, document management or commercial).

Benefits

Plant Management covers the core Enterprise Asset Management functions.

All maintenance measures as well as restructuring or new building projects are reliably planned, tracked & documented

within one system.

�Process Optimization�Diagnostics�Simulation

Plant Management System

Operating System &Applications

Application &Automation Server

Field Components

Excitation Systems

ElectricalComponents


Beneficios



State of the art Fleet Management

Enterprise Resource Planning

P l a n t Management

F l e e t Management

SP

PA

-T30

00S

PP

A-M

3000

Data Interface

Operating System &

Applications

Application &Automation

Server

Field Components

Excitation Systems

Fie

ldA

utom

atio

n

ElectricalComponents

Plant Management

RemoteDiagnostic

Center

O p e r a t i o n Management


Just what you need


•Shift management: planning, logging & hand over

•Operational safety Isolation & Permits EHS

•Operator Rounds

•Effective shift planning•Maintenance strategies for each

single devise possible

•Distribution of shift instructions



Today we provide the 3rd generation of plant management SW…

…developed for power generation – applicable across industries

� Used in Siemens operated Power Plants…

…and also in Siemens Industrial Plantsand Airports Solutions

� Used in 100+ power plants with 52+ GW

1995

1999

2009

2013

SPPA M3000 – Plant Management, 20 years

BFS95 BFS++ WebBFS

Mobile FieldAssistance

INGRES 4GLVT Terminal Client- Server Multi-tenant

Web Application

EOL

EOL

EOL

*EOL= End of Life (no new features, limited or no bug fixes of operating system Windows or application)



Work Management - Planning the work

• Work incl. resource planning

• Work step progression plan

• Due date calculation for maintenance work

by intervals

• Time tracking spent on a work order

• Base lining against what work order of the same time have

taken

Plant Management

Plant Management



Work Management - core Work Order System with advanced Notification system

Work orders are created out of:• Problem Reporting

• Preventive maintenance plan• Time or threshold triggered

event• Planned Shutdown

work order

Monitoring of work progress• Budget, efforts and costs

• Problem Cause Resolution

• History of asset (“Warranty”)

Push-Notification of • Required MRO* part received

at dock• Ready to start work order

Plant Management

Plant Management

Plant Management

Plant Management

*MRO: maintenance repair overhaul



Work Management Ensure Occupational & Operational Safety

• Planning and implementing tag-outs / lock-outs incl. safety

precautions

• No Work start before required measures are implemented

• Auditable documentation of all measures

• Consideration aspects of plant safety (e.g. function tests)

• Personnel safety first(e.g. confined space entry)

• Environmental safety (e.g. handling of hazardous and noxious

substances / materials)

Human Readable RFID Tags

Plant Management



Operations Management - integrated Shift Management

• Effective shift planning by integration of handheld

• Consistent logging of shift events

• Logging of process data

• Creation of fault notification

• Distribution of shift instructions

• Triggering of routine shift tasks and execution control

• Support of Operator Rounds

Plant Management

Handheld for Operator Rounds



Accounting of work & Operations Management How they affect the bottom line

Costs and Expenses are

• rolled up on each work order for overview purposes of what has happened with the given

situation• reflected in total on the

equipment along with the downtime

• broken down and combined on the given accounts which

are actively compared against the planned annual budget

items• exportable to Excel and/or

displayable in 3D graphics online

Plant Management



Maintenance Management - Plant Management enablesthe correct maintenance approach

• Break down maintenance

• Cyclical maintenance (counter & time based)

• Condition Based MaintenanceBut the real savings are in:

Traditional strategies are:

• Support for all essential maintenance strategies

• Determination and documentation of the optimal maintenance

strategy for each relevant plant item

Plant Management



Material & Service Management -tied to the Supply Chain Management

• Requisition• Purchase order

• Receipt• Dock Receipt

• Service Receipt• Invoice

Plant Management

Plant Management

Plant Management

Plant Management



Inventory Management - making sure the right spares are on hand with minimum inventory investment

• Easy integration of fully inventory management systemor use existing state of the art

• Managing even multiple stores

• Setting different reorder points per store

• Automatic reordering of parts

• Ensuring the accuracy of the on hand quantity through

cycle count

• Ensuring optimum inventory levels through ABC Analysis

Handheld routing to the closet available part

Plant Management



Asset Management - Asset model is the basis for Plant Management

Structure hierarchical and linear

• Location

• Rotating spares

• Import/Export to Design/Engineering systems

Plant Management



Asset Management - getting the most of the assets that directly affect the companies bottom line

• Guiding the repair or replace decision through tracking:

• The costs of the equipment on yearly and life basis

• The downtime of a given equipment

• Integrated condition based monitoring

• Asset health situation• Asset condition in relation

to its environment• Optimizing the ROI of the asset in

the given system

Plant Management



Asset Management - Document Management enables quick access to relevant information

• Registration and management of all document types

• Comprehensive version control

• Access to documents directly from the current

application

• Format-independent display without the need of the

original application

• Fuzzy full-text search and key-word search

Plant Management



Dash-Boarding - Online display of key information No programming skills needed at all

Display Anything Anywhere• Near Real Time Data Display• Highlight bottle necks and out

of spec performance situations• Display Energy Levels (bunker,

wind speed, reservoir level, temperatures etc)

• Any screen can be configured to display one or more Indicators

• Flexible Indicator creation through SQL level configuration tool

• Indicator can be scheduled and/or executed manually

• Scheduled Indicators save execution value in time series database table

so trend analysis can easily be done

Plant Management



Reporting - Hard Copyeasy report customization in addition to base reports

With ALL this technology.. We still CAN print a pi ece of paperExamples of standard reports:

• Past Due PM report• Past Due Corrective Work Orders

• Work Order List by Craft/Supervisor • Work Order List by Labor Resource

• Work Order Weekly Schedule• Failure Summary by PLANT ITEM/EQUIPMENT/

LOCATION• Failure Incident Details by PLANT

ITEM/EQUIPMENT/LOCATION• Downtime Summary by PLANT

ITEM/EQUIPMENT/LOCATION• Maintenance Cost/Cost Roll-up by PLANT

ITEM/EQUIPMENT/LOCATION• Location Hierarchy

• Mean Time Between Failures and Mean Time to Repair for Equipment• Equipment Move History

• Extended Line Item (by Storeroom)• Pick List for upcoming scheduled Work Orders

• ABC Analysis• EOQ Analysis• ROP Analysis

• Inventory Cycle Count• List of Expiring Lots

• Reorder Report• Item Transaction History

• ……

• Native Report writer included (no additional costs)

• Standard reports included • Drag and drop formatting

• Third party reporting tool under consideration as an alternative

option



Plant Management - scalable architecture

• Application Server. Provides the Graphics and business layer of

the application. Depending on site size

can also act as the interface server

• Database Server. optimized for the storing and retrieval of the data

that the Application Server needs to fulfill

the requests

System ensures scalabilty. By allowing one or more

servers to act in as a singular fashion to the

outside world

SMS

SMS

UM

TS

UM

TS

Offic

e Netw

ork

Offic

e Netw

ork

Applicatio

n

Applicatio

n

Server

Server

DataBase

DataBase

Server

Server

Mobile

Mobile

Server

Server



Plant Management - tightly integrated into the shop floor

• Embedded DCS connectors• Templates to make signal

inputs actionable outside the control room

• Foundation of condition based activities

Plant Management



Plant Management

Plant Management

Plant Management - makes things happen based on the signals

• Easy to generate new reports without any programming skills

• Signals (analogue, digital, virtual)

• are stored on the plant item. The delta reading then is

added to the installed equipment’s meter.

• readings can be inherited to plant items that are in the

structure and have no meters attached

• can directly convert a work plan into a work order.

• values can be written to the shift log

• values can be displayed in the dashboard

Plant Management

Plant Management



Plant Management – short list of representative references of Siemens Power Plants worldwide

ArrubalSpain 2003

800 MW CCPP

TahaddartMorocco 2003384 MW CCPP

BerrouaghiaAlgeria 2005

520 MW SCCP

MidelecEgypt 2000

480 MW SCPP

RudeshurIran 2005816 SCCP

SugenIndia 2006

480 MW CCPP

Muara TawarIndonesia 2004858 MW SCPP

Kuo KuangTaiwan 2003

4580 MW CCPP

Pont-sur-SambreFrance 2008

412 MW CCPP

SevernU.K. 2009

800 MW CCPP

Philippines 19981000 MW CCPP Santa Rita,500 MW CCPP San Lorenzo

ArrubalSpain 2003

800 MW CCPP

TahaddartMorocco 2003384 MW CCPP

SevernU.K. 2009

800 MW CCPP



• Published by and Copyright 2015:• Siemens AG

Energy SectorFossil Power GenerationInstrumentation, Controls & Electrical

• Siemens México S.A. de D.V.• Ing. Mauricio González Mercado

Tel: 52 55 5328 5527• Mobile: 52 1 55 4484 4317• www.siemens.com

• This document contains forward-looking statements and information – that is, statements related to future, not past, events. These statements may be identified either orally or in writing by words as “expects”, “anticipates”, “intends”, “plans”, “believes”, “seeks”, “estimates”, “will” or words of similar meaning. Such statements are based on our current expectations and certain assumptions, and are, therefore, subject to certain risks and uncertainties. A variety of factors, many of which arebeyond Siemens’ control, affect its operations, performance, business strategy and results and could cause the actual results, performance or achievements of Siemens worldwide to be materially different from any future results, performance or achievements that may be expressed or implied by such forward-looking statements. For us, particular uncertainties arise, among others, from changes in general economic and business conditions, changes in currency exchange rates and interest rates, introduction of competing products or technologies by other companies, lack of acceptance of new products or services by customers targeted by Siemens worldwide, changes in business strategy and various other factors. More detailed information about certain of these factors is contained in Siemens’ filings with the SEC, which are available on the Siemens website, www.siemens.com and on the SEC’s website, www.sec.gov. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those described in the relevant forward-looking statement as anticipated, believed, estimated, expected, intended, planned or projected. Siemens does not intend or assume any obligation to update or revise these forward-looking statements in light of developments which differ from those anticipated.

• Trademarks mentioned in this document are the property of Siemens AG, it's affiliates or their respective owners.

• Subject to change without prior notice.

• The information in this document contains general descriptions of the technical options available which do not always have to be present in individual cases. The required features should therefore be specified in each individual case at the time of closing the contract.

• SPPA

• E F IE

• AL: N ECCN: N

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