48741-13

48741-13 or also more commonly known as IEC 61850-13 is an information technology standard established by the International Electrotechnical Commission (or commonly known as the IEC). This is an international network communications standard for safely and reliably connecting distributed power generation and control systems using its Ethernet protocol. It defines the protocols, formats and conventions for the entire logical path for the power system from the master control and supervision system to the remote devices and actuators. It specifies the architecture, protocols, and procedures required for communications between substation devices with various systems such as network, operation supervision, protection and design tools.

The IEC 61850-13 standard is applicable to the field of communication between various control systems and the automation of electrical networks. It is the scope of this standard to define the network components, their communication services, the protocol stack and the engineering techniques used in the electrical network automation systems. It is still used today to ensure safe and reliable communications between various components of the power system. The application of IEC 61850-13 makes possible interoperability, scalability, and the design of advanced utility and energy information systems.

Working Principle

IEC 61850-13 incorporates several communication protocols and a protocol method to provide communications between protection, remote control, and monitoring systems. The communication protocol is based on the Ethernet to TP-11 protocol and is based on the station bus system concept. The IEC 61850-13 incorporates the CAN bus, Ethernet, and HS485 protocols. It provides reliable communication connections with low latency response time, high bandwidth, and various optional features. It also provides a series of well-defined Application Layer Services and message formats to support communication between intelligent devices.

The station bus provides redundancy, synchronized communication with no collision, broadcast message, and fast response time. The IEC 61850-13 also provides an innovative protocol for protection, control, and measurement. This protocol supports many communication devices such as routers, firewalls, and other pieces of hardware. Additionally, several signal transmission technologies including Ethernet, CAN bus, and HS485 are used for communication. All these features of the IEC 61850-13 protocol enable end-to-end communication between various components of the power system.

Also, the IEC 61850-13 defines an architecture for monitoring and supervision of electrical networks. This architecture consists of an application layer, the communication layer and the physical transmission layer. The communication layer defines the protocol standards, the commands and the rules to be followed when exchanging messages between devices. It also defines methods for bandwidth control, synchronization of data, and authentication. The physical transmission layer consists of the transmission medias and the protocols used for communication including wireless, optical, and cable technologies.

Apart from the already mentioned features, the IEC 61850-13 also provides consistency of electrical control system data at the network level. It also supports the design and implementation of distributed systems by providing scalability and configurability to the user. For instance, the IEC 61850-13 supports redundancy and selective refresh of devices during start-up.

All in all, the IEC 61850-13 is an effective, modern, and reliable communications standard for connecting distributed power generation and control systems such asRemote control and protection systems, Monitoring and Supervision systems, and Automation systems. It meets the requirements of advanced communication networks and provides effective networking capabilities with scalability, communication security, communication integrity, and communication maintainability as important goals considered in its design.