Substation Automation (S.A) System Project Supervisor: Stuart Wildy

CONTENTS Introduction Project Management Process for S.A System Customer Requirements Project Results Functional Design Specifications System Architecture Switchboard Schematics SCADA Programming IEC Conclusion

Introduction Aim – To develop SCADA program as per customer specifications that will allow to monitor and control the substation equipment's remotely. Objectives of the Project: 1. Gain overall product knowledge which would be used in our switchboard. 2. Understanding networks and different communication concepts. 3. Designing schematics/system architecture to show interconnection of devices within switchboard at substation. 4. Developing software as per customer requirement for remote control of substation through SCADA.

Introduction What is Substation Automation system ?  Protection, Monitor and Control of substation remotely Levels in Substation Automation :

Introduction Need for Substation Automation System ? -Reduced Wiring -Asset Management -Preventing Outages -Conditional Maintenance -Improved Functionality

Project Management Process

Where the project starts?  Customer specifies the requirement Solution to the requirements :  Functional Design Specification  System Architecture  Switchboard Schematics  SCADA Programming

Customer Requirements Customer provides some specifications that helps developer for providing the solution. Specifications include:  Data for monitoring the substation  Controlling functions  Make of the device  Feeder information  Single line diagram of their distribution system

Single Line Diagram

Project Results

Functional Design Specification FDS is a document submitted to customer that shows design consideration based on the requirements It explains functionality and configuration of S.A system:  Level 1 – Intelligent Electronic Devices (relays, meters)  Level 2 – Gateways (protocol convertor)  Level 3 – Human Machine Interface (SCADA system) ( view next slide on system architecture for better understanding on how different levels are arranged and how data is flowing)

System Architecture Screen Shot from the software

Switchboard Schematics

Board General Arrangement

Board Equipment Location

SCADA Programming (Supervisory Control and Data Acquisition) SCADA: for monitoring and controlling the substation remotely over PC. SCADA selected for project – XENON Programming steps involves creating and configuring:  Drivers  Data types  Variables  Frames  Screens  Functions

SCADA Programming Drivers: It helps SCADA system to understand protocols from other devices, which is required for exchanging data for communication. In short it allows communication between SCADA with other devices (IEDs). Data Types: Variable created during programming are based on data types. They describe the structure of variable whether Boolean or unsigned integer, etc. Variables: They act as interface between data source (relays) and SCADA. They are created from the tag list perhaps the parameters which needs to be monitored. Frames : It is the basis for creating screen. The size and position is defined for the screen. Screens: It is a window with pre-defined properties. Functions: They are linked to each screen, which will be automatically executed on opening or closing the screen,

Xenon SCADA Drivers

XENON SCADA Data Types

Xenon SCADA Variables

Xenon SCADA Frames Frames

Xenon Screens

Xenon SCADA Functions

XENON SCADA SLD

SCADA Monitoring Screen

IEC – To The Future

IEC A new standard protocol for S.A system. Spreading widely within S.A industries. Interoperability of the devices from different manufacturers. Uses readily available industrial Ethernet and communication components. Future-proof architecture, client – server model.

New Architecture Create Advantages No more classical master-slave configuration and no bottle neck. Client / Server Architektur with distributed Intelligence SCADA – WAN Station bus Engineering Browser Process Ethernet IEC61850 Corporate Network TCP/IP HMIStation Unit independend communication

Modbus Protocol Vs IEC Protocol ModbusIEC Main task is the exchange of compatible protection signals to S.A unit Main task is to exchange all the information of all devices to Ethernet bus Only few commands are compatibleAll information is described in substation control language within logical node. Master Slave configurationClient Server configuration Serial communication with low baud rates in kbps TCP/IP communication with high baud rate in Mbps Uses RS- 485 connector cableUses RJ – 45 connector Max number of slaves can be 256Max number depends upon network class

Conclusion  Final achievements of the project:  Gained Electrical knowledge related to the project  Analysed the customer specifications  Functional design specification document  Designed system architecture  Hardware solution – building switchboard  Software solution – developed SCADA program  Project relevance – complete SCADA program for the employer