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Abstract
In order to prevent long term voltage instability and induced cascading events, a load shedding strategy based on the sensitivity of relay operation margin to load powers is discussed and proposed in this paper. The operation margin of critical impedance backup relay is defined to identify the runtime emergent states of related system component. Based on sensitivity analysis between the relay operation margin and power system state variables, an optimal load shedding strategy is applied to adjust the emergent states timely before the unwanted relay operation. Load dynamics is also taken into account to compensate load shedding amount calculation. And the multi-agent technology is applied for the whole strategy implementation. A test system is built in real time digital simulator (RTDS) and has demonstrated the effectiveness of the proposed strategy.
Original language | English |
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Title of host publication | Proceedings of the 2012 IEEE International Conference on Power Systems (POWERCON) : POWERCON 2012 |
Number of pages | 6 |
Publisher | IEEE Press |
Publication date | 2012 |
ISBN (Print) | 978-1-4673-2868-5 |
DOIs | |
Publication status | Published - 2012 |
Event | 2012 IEEE International Conference on Power System Technology (POWERCON) - Auckland, New Zealand Duration: 30 Oct 2012 → 2 Nov 2012 |
Conference
Conference | 2012 IEEE International Conference on Power System Technology (POWERCON) |
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Country/Territory | New Zealand |
City | Auckland |
Period | 30/10/2012 → 02/11/2012 |
Keywords
- Voltage instability
- Load shedding
- Sensitivity analysis
- Relay operation margin
- Multi agent
- RTDS
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Dive into the research topics of 'Emergency Load Shedding Strategy Based on Sensitivity Analysis of Relay Operation Margin against Cascading Events'. Together they form a unique fingerprint.Projects
- 1 Finished
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Development of a Secure, Economic and Environmentally-friendly Modern Power System
Chen, Z., Bak-Jensen, B., Bak, C. L., Hu, W., Fang, J. & Su, C.
01/04/2010 → 31/12/2015
Project: Research