Workshop on IEC 61850 - 8 GOOSE Messages

Workshop on IEC 61850 - 8 GOOSE Messages

Workshop on IEC 61850 - 8

GOOSE Messages

Author : Eng. Andrej Sepcic

Location: South Africa

Trainer : Andrej Sepcic


INTRODUCTION


- In order to have better connectivity in SS

1. Device to the Device communication2. Device to Client communication3. Finding the data successfully

Reasons why IEC 61850 got introduced

Now different types of IED and IED’s from different Producers can talk to each other




- Now all the major producers “speak the same language”ABB, Areva, SEL, GE, Siemens, Schneider and many more

- Speed Quicker than Cu connections

- Protocol with sub protocols (7)

- Evolved in time meeting the needs of new devices (flexible)

Other facts about IEC 61850


- MMS Manufacturing Messaging SpecificationFor client to device communication ( slower )

- GOOSE – Generic Object Oriented Substation EventFor client to device communication ( super fast )

- We perceive that IED have IEC 61850 Servers and Clients in them (definition)

Other facts about IEC 61850



IED – Intelligent Electronic Device - A Protective Relay


• A physical device

IED – Intelligent Electronic Device - A Protective Relay


Hierarchical Data Model in IEC 61850


Logical Device – one or more


- Number varies greatly between producersSEL has a number of LN close to 5GE even less ( before 1 )SIMENES has many

- Source of the confusion on how to get the data and where to get it

Logical Nodes


Logical Node - Example


- Groupings of data within that Logical Node ( what this data can do )

- MX - Measurement Data ( Voltage, Current, frequency…)- ST - Status Data (Health, Behavior, Position…)- CO - Control Data ( Switch ON/OFF… )- DC - Descriptions ( A, V, Hz, VA, W…)

- Under FC there are Data Objects (DO)

Functional Constraints = FC


- And the Data class here are called Data Attributes

Data objects – are finally the classed that contain data


Structure of hierarchical object model in IEC 61850 Figure


Examples of object naming in according to IEC 61850-8-1


How to use all this knowledge to test Relays ?

• Europrot – Protecta Multifunctional relay


DRTS 64 – with IEC 61850 – 8 accessory




• This is the configuration in which we are going to test Relay



We are going to use Distance application in TDMS


We have imported the RIO or XRIO file


We have imported the RIO file

And this is how we are going to connect the DRTS and the Relay


There are two ways how to stop the generation

Using real contacts c1 – C12 or using virtual contacts


Choosing “Explore Now” and pressing Start Exploring the SW will start sniffing the traffic on the Substation Bus

The GOOSE messages will appear here


Here the Data Attributes will appear


We tested Distance Protection using binary contacts to stop generation and we can see good results


If we desire to use GOOSE message as a signal to stop the generation, we will first need to set a virtual contact


As we assigned a certain GOOSE message to be a Virtual Contact, we can observe all the assigned Virtual Contact in the appropriate Tab

We also need to add “X” at “OR” column, to make the VC stopping valid


Then we should choose “Use virtual Contacts to STOP the test” in Exploring Options

We also need to Tick the “Ignore binary inputs C1- C12 to stop the test”


After that we START the test – in this case we used “Click and Test” option


As the GOOSE message becomes “True”, the DRTS 66 intercepts that message and STOPS the counter. The measured time can be seen here


In the result table you can see the same result and also the fact that the Virtual Contact ( VC ) was the one stopping the DRTS generation

Once all the zones are tested you will get a Result Table as this one


The SW also gives you the option to do Publishing of intercepted GOOSE Messages

The first step is to choose the message that you need to Publish


Once the message is chosen, it will appear in the “Goose Publishing” Tab

Here you can Start and Stop the publishing of the chosen messages

Workshop on Distribution Relay Testing & Smart Grid

During Publishing the screen will look like this

Publishing is often used to verify the behavior of the other IED in the same network


Software also enables us to Open Substation file ( *.SLD or *.ICD ) and see the GOOSE signals assigned in all the IED’s


Thank you for your attention

Documents

Workshop on IEC 61850 - 8 GOOSE Messages