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| Content Provider | IET Digital Library |
|---|---|
| Author | Sun, Wei Qing Zhang, Yan Wang, Cheng Min Song, Ping |
| Abstract | In recent years, real-time dynamic thermal line rating (RT-DTLR) technology has been developed and implemented in operations to improve transmission line capacity, so that congestion costs and/or risk of load shedding can be reduced. Power systems obviously benefit from this technology but also bear the risks because of thermal overload of transmission lines. To involve RT-DTLR technology into conventional power system load shedding strategies, this study explains the concept of flexibility in power system analysis, expresses transmission line capacity constraints into flexible forms and proposes a flexible load shedding strategy considering RT-DTLR. The two sub-objective functions, representing load shedding quantity and system risk increment, are normalised and expressed as the confidence levels from system security consideration and load loss consideration, respectively. The proposed method takes advantage of both the advanced hardware and software technologies in smart grids and the simulation results showed that it can trade off the benefits and risks brought about by RT-DTLR in load shedding. |
| Starting Page | 130 |
| Ending Page | 137 |
| Page Count | 8 |
| ISSN | 17518687 |
| Volume Number | 7 |
| e-ISSN | 17518695 |
| Issue Number | Issue 2, Feb (2013) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-gtd/7/2 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2012.0117 |
| Journal | IET Generation, Transmission & Distribution |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Advanced Hardware-software Technology Confidence Level Congestion Cost Fexible Load Shedding Strategy Load Loss Consideration Load Shedding Power System Analysis Power System Economics Power System Managemen Power System Operation Power Transmission Line Power Transmission, Distribution And Supply Real-time Dynamic Thermal Line Rating RT-DTLR Technology System Risk Increment System Security Consideration Thermal Overload Transmission Line Capacity Constraint |
| Content Type | Text |
| Resource Type | Article |
| Subject | Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering |
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