System level testing for substation automation systems

A substation automation and system-level technology, applied in the direction of circuit breaker testing, transmission system, digital transmission system, etc., can solve the problem of limited signal mode complexity in the test configuration range, and achieve the effect of alleviating the problem

Active Publication Date: 2009-05-13
HITACHI ENERGY SWITZERLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the sheer number of IEDs requiring more complex test rigs, and due to cost and space constraints, not all IEDs for a particular substation are installed for FAT, let alone the largest possible substation required for a system verification test. Number of IEDs
Accordingly, the scope of test configurations and the complexity of the above-mentioned signal patterns are limited

Method used

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  • System level testing for substation automation systems
  • System level testing for substation automation systems
  • System level testing for substation automation systems

Examples

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Embodiment Construction

[0027] figure 1 A one-line diagram showing part or a fragment of an exemplary substation, and also includes some communication links and SA or secondary devices. For example, suppose the voltage level of the substation is 110kV. The model of a single-wire switchyard includes topological electrical connections between primary devices. The substation includes a double bus configuration with two bus bars 10, 10', each of which feeds two switch frames 11, 11' through circuit breakers QB1 to QB4. Each switch frame includes a circuit breaker QA1, an isolating switch QC1, and a grounding switch QE1. Corresponding parts of the substation automation system describe the communication network 20 and two IEDs 21, 22 in thick lines, both of which are the host logic nodes of the classification CSWI (switch control). Such as figure 1 As shown by the dotted line, each logical node is assigned to one of the above-mentioned circuit breakers QA1.

[0028] figure 2 The test environment or test e...

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Abstract

The invention is concerned with the testing of system level functionality involving several Protection. Control and Measurement (PCM) Intelligent Electronic Devices (IEDs) of a Substation Automation (SA) system for IEC 61850 compliant substations. An extensive testing of all conceivable control or protection functions / applications of an extended SA system comprising a large number of IEDs with a multitude of configurations is facilitated by simulating at least one of the IEDs in a testing device. Hence, only a limited number of IEDs are physically present as individual devices in a test environment, the behaviour of at least one further IED being simulated by a dedicated testing device with appropriate data processing means. The testing device sends network messages indicative of the behaviour of the simulated IED according to its communication and device configuration over a substation communication network to the physically present IED to be tested. The proper working of the configured IED functions, i.e. the expected correct action as triggered by the testing device, are then verified by analyzing the device's response over its analogue and digital outputs, as well as its response over the communication network. Preferably, the set-up for SA system testing is automatically detected and configured.

Description

Technical field [0001] The invention relates to the field of substation automation (SA) systems for substations in high-voltage power grids and medium-voltage power grids. More specifically, the present invention relates to the testing of system-level functions of two intelligent electronic devices (IEDs) related to the SA system. Background technique [0002] The power system includes a transmission grid and / or a distribution network interconnecting geographically separated regions, and a plurality of substations at nodes of the grid. The substation includes equipment used to transform and switch the connections between the lines of the power grid. Power generation and flow to users are managed by the Central Energy Management System (EMS) and / or monitored by the Monitoring and Data Acquisition (SCADA) system located in the Network Control Center (NCC). [0003] Substations in high-voltage and medium-voltage power grids include primary equipment such as cables, wires, bus bars, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327
CPCH04L43/50G01R31/327H04L43/0817H04L12/2697Y04S40/168Y04S40/00
Inventor 胡贝特·基尔曼克劳斯·费特尔迈克尔·奥布里斯特特苏吉·梅达
Owner HITACHI ENERGY SWITZERLAND AG
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