Nelder Mead Method Used in Protection Setting Optimization

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F16%3A00305642" target="_blank" >RIV/68407700:21230/16:00305642 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1109/EPE.2016.7521806" target="_blank" >http://dx.doi.org/10.1109/EPE.2016.7521806</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/EPE.2016.7521806" target="_blank" >10.1109/EPE.2016.7521806</a>

Result language
angličtina
Original language name
Nelder Mead Method Used in Protection Setting Optimization
Original language description
The paper deals with distributed generation network protection based on adaptive directional overcurrent protections with inverse-time characteristics. Correct setting of all protections is performed by minimization of appropriately designed objective function. The shape of inverse-time characteristics is described by time multiplicator and slope constant. Since optimization of slope constants is not a convex problem, classical gradient optimization methods are not suitable. As a possible solution a direct search algorithm can be used. For this purpose, Nelder-Mead simplex algorithm is used in the article. Convergence speed of the algorithm is highly dependent on proper initial estimations, and hence optimization process consists of two parts. In the first part, simplified objective function only is used to obtain initial estimations. In the second part, full objective function is used to obtain final coefficients. Next, validation of proposed optimized setting in SimPoruchy 2.1 program was performed. The software allows for quick and well-arranged output of failure currents in the system and also for simulation of directional protections with inverse-time characteristics used in the model.
Czech name
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Czech description
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Type
D - Article in proceedings
CEP classification
JE - Non-nuclear power engineering, energy consumption and utilization
OECD FORD branch
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Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
2016 17th International Scientific Conference on Electric Power Engineering (EPE 2016)
ISBN
978-1-5090-0907-7
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
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Publisher name
IEEE
Place of publication
New York
Event location
Praha
Event date
May 16, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000382934600092

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