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Control Panel for Anti Emergency system

IP.com Disclosure Number: IPCOM000234909D
Publication Date: 2014-Feb-13
Document File: 9 page(s) / 203K

Publishing Venue

The IP.com Prior Art Database

Abstract

A control panel for an Anti-Emergency System AES in a substation of an electric power network, including a microprocessor module, an alarm signal receiving module, an alarm signals output module, and including interfaces for Wide Area Communication, Substation communication, Synchronization, Event Reporting, and including a human-machine interface for receiving a username and password, and including a cyber-security module for device access control based on the username and password.

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CH-13100

Control Panel for Anti Emergency system

State-of-the-art solutions

The regional Anti-Emergency System (AES) used in Russian power utilities is intended to prevent a system crush, cascade fault propagation in power networks and isolations of the damaged power system areas.

The AES system is based on analysis of the current condition on different stations. In case of emergency event on any station the corresponding AES commands will be transferred between stations or between stations and AES Control Center.

When AES Control Center will receive AES command(s), it will provide pre-defined actions by sending AES commands to different stations in the region to prevent a system crush. Such actions can be switching on or off low priority consumers, changing a position of taps of autotransformers, generators, compensators, etc.

The AES commands transmission is a crucial part of a regional AES system.

AES commands are any relay protection commands or any other binary signals involved in AES system functionality.

Substation AES systems consist of AES Controller, AES control panel such as the ABB Control Panel CP-24, and communication equipment (power line communication or fiber optics).

AES Control Panel / CP-24:

A functional diagram of an AES control panel is given in the figure below, on the example of ABBs CP-24:


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The interfaces and functionality of the AES control Panel are:


Wide Area Communication interface:
A bidirectional interface between the AES control panel and the wide are communication equipment, typically a power line communication terminal or a fiber optical multiplexer.

State of the art for the interface is binary (potential free) I/O, 24 in- and 24-outputs in the case of the CP-24.

Substation interface:


A bidirectional interface between the AES control panel and the AES Controller in the substation. State of the art for the interface is binary (potential free) I/O, 24 in- and 24-outputs in the case of the

CP-24.

Synchronization interface:
An input interface to synchronize the AES control panel in particular for the time stamping of the event recording and reporting.

State of the art for the interface is Irig-B.

Event reporting:
An output interface from the AES control panel to the SCADA system of the substation, used for event reporting of events that are registered in the control panel towards the SCADA system.

State of the art for the interface are serial interfaces, (RS-232 / RS-485) and an event recording based on the protocol IEC 61870-5-101.

Configuration, monitoring and maintenance interface:

An bidirectional interface for configuration, monitoring and maintenance of the AES control panel, i.e. download of software and configuration, upload of status and alarm messages and upload of event recorder log files.

State of the art for the interface is a serial interface, (RS-232 / RS-485) which is connected to local maintenance PC. Proprietary protocol. No cyber security protections.

Functions of the AES...