ABB 620 Series IEC 61850 Engineering Guidelines

ABB 620 Series IEC 61850 Engineering Guidelines

Overview of IEC 61850 Standard

standard framework

IEC 61850 is an international standard for substation communication and systems, which defines an object-oriented data model and communication services, supports device interoperability, and is divided into multiple parts (such as data model, communication protocol, configuration language, etc.). It supports Edition 1 and Edition 2 versions, which have differences in data model and functionality. It is recommended to unify the versions in the project.

communications architecture

Vertical communication: Based on MMS (Manufacturing Message Specification) and TCP/IP, used for communication between controllers and upper level systems such as SCADA.

Horizontal communication: GOOSE (General Object Oriented Substation Events) and SMV (Sampling Values) are used to achieve fast data exchange between devices, supporting IEEE 1588 v2 time synchronization.

Tools and Configuration Process

PCM600 tool

Used for the full lifecycle management of protective relays, supporting engineering design, configuration, debugging, and monitoring.

Adapting different models of devices through 'Connectivity Packages' requires communication configuration using the IEC 61850 Configuration tool.

IET600 tool

Focused on IEC 61850 system level configuration, supports importing/exporting SCD files, and achieves centralized management of communication parameters such as GOOSE and SMV.

Collaborate with PCM600 to exchange configuration data through SCL files and support third-party device integration.

configuration process

Device definition: Create a project and add devices in PCM600, export SCD files to IET600.

Communication configuration: Configure GOOSE publish/subscribe, SMV transmission parameters, IEEE 1588 time synchronization, etc. in IET600.

Function mapping: Use the Signal Matrix tool to map GOOSE/SMV data to protection function blocks, completing application logic connections.

Verification and Download: Export the configuration to PCM600, write it to the device, and verify the communication status.

Core communication function configuration

GOOSE Communication

Data Model: Based on the Data Set and GOOSE Control Block (GoCB), supporting the transmission of state and analog variables, with a response time of less than 3ms.

Configuration points:

Unique multicast address and APP ID to avoid VLAN configuration conflicts.

Define data entries and subscription relationships through PCM600's IEC 61850 Configuration tool or IET600.

Diagnostic counters (such as FrRxCnt, RxTmOutCnt) are used to monitor communication status.

SMV (Sampling Value) Communication

Support IEC 61850-9-2 LE protocol, transmit current/voltage sampling values, with a sampling rate of 4000 points/second (50Hz system).

Time synchronization: relying on IEEE 1588 v2 PTP protocol, supporting HSR/PRP redundant topology, ensuring microsecond level synchronization accuracy.

Configuration restriction: The SMV dataset cannot be manually modified and needs to be activated through the SMVSENDER function block. The receiving end processes the data through the TVTR module.

Event Reporting

Based on the report control block (RCB) and dataset, it supports buffered and non buffered report modes.

The triggering conditions include data change, quality change, etc. The report content and target client can be defined through PCM600.

System architecture and redundancy design

network topology

HSR (High Availability Seamless Redundancy): A ring network with nodes supporting dual port redundancy, with a maximum of 30 devices, suitable for high reliability scenarios.

PRP (Parallel Redundancy Protocol): Double star network, devices are connected through LAN A/B dual ports, supporting single node redundancy box (RedBox).

IEEE 1588 v2 Time Synchronization

Following IEEE C37.238-2011 power configuration file, supporting one-step mode and transparent clock.

The priority of the master clock is set through PTP Priority 1/2, with an accuracy of ≤± 1 µ s to ensure synchronization of SMV sampling values.

performance optimization

The switch needs to support VLAN partitioning and SMV traffic filtering to avoid broadcast storms.

The maximum delay of SMV needs to be configured according to the number of network hops, with a typical value of 2-7ms, to ensure real-time protection function.

Engineering Verification and Maintenance

Verification process

Functional testing: Use the Signal Monitoring tool of PCM600 to forcibly send GOOSE signals and verify the status updates of the receiving end.

Time synchronization check: Monitor the synchronization status of IEEE 1588 (such as Sync Accuracy<4 µ s) to ensure consistent clocks across the entire network.

Redundancy testing: Simulate a main clock failure to verify the continuity of backup clock takeover and SMV transmission.

Diagnosis and Maintenance

Logs and counters: View GSELPRT1 (GOOSE diagnosis) and MMSLPRT1 (MMS diagnosis) counters through the device LCD interface or PCM600.

Firmware upgrade: Update device firmware and Connectivity Packages through PCM600's Update Manager to ensure compatibility.

Safety precautions

Backup project files before configuration to avoid data loss caused by misoperation.