Публикации

@conference{Ivanova2020,

title = {LED Transmitter for Plastic Optical Fibers},

author = {Y. N. Ivanova and S. C. Ivanov},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099583999\&doi=10.1109%2fEEAE49144.2020.9279074\&partnerID=40\&md5=95aaa119e0483c6eb6cdc7f43a8a03b6},

doi = {10.1109/EEAE49144.2020.9279074},

isbn = {9781728103624},

year  = {2020},

date = {2020-01-01},

urldate = {2020-01-01},

journal = {2020 7th International Conference on Energy Efficiency and Agricultural Engineering, EE and AE 2020 - Proceedings},

publisher = {Institute of Electrical and Electronics Engineers Inc.},

abstract = {Light emitting diodes (LED) are optical transmitters, radiating light in the visible range for plastic optical fibers and finding wide application in automation of technological processes both in industry and building automation. Optical signals are usually emitted by LEDs in the visible range by either laser diodes with lens or collimated lasers. This paper presents the results from experimental studies of a new scheme of an optical transmitter, using a LED, radiating light in the visible range. The aim of the conducted studies is to prove the possibility for transmitting numerical and analogue broad-band signals by using plastic optical fibers. Analysis of both the transient processes and the frequency properties of the transmitter have been made. An equivalent circuit of the optical transmitter, suitable for simulation studies, has been developed. The transient characteristics of the LED transmitter have been shown for operation in a pulse mode. By using an N-channel JFET to control the light emitting diode, connected in a common drain configuration, the r.m.s. value of the noise voltage at the output of the transmitter is reduced. This makes it applicable in systems for transmitting analogue data in addition to digital ones. The transmitter is compatible with the majority of data formats. It can be included as a final element in numerical interfaces for data communication through plastic optical fibers. The reliability of the transmitter in operation is increased by using a small number of elements. © 2020 IEEE.},

note = {cited By 0},

keywords = {e, ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Hadzhiev2020,

title = {Influence of the Cooling Conditions on the Heating of a Power Distribution Block},

author = {I. Hadzhiev},

editor = {Shakev Ahmed N S Nikolov V. Petrov M.},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85102727306\&doi=10.1109%2fHiTech51434.2020.9363974\&partnerID=40\&md5=e662ffe1456528283b433c6bdd217191},

doi = {10.1109/HiTech51434.2020.9363974},

isbn = {9781728186511},

year  = {2020},

date = {2020-01-01},

urldate = {2020-01-01},

journal = {3rd International Conference on High Technology for Sustainable Development, HiTech 2020 - Proceedings},

volume = {878},

number = {1},

publisher = {Institute of Physics Publishing},

abstract = {This paper studies the influence of the cooling conditions on the heating of a low voltage power distribution block (PDB) of terminals. The heating of the PDB has been considered in the following cases: closed PDB and consideration of the thermodynamic processes in it and heat transfer toward the environment by means of radiation and convection; open power distribution block (without cover) and heat transfer to the surroundings through radiation and convection; terminal block with ventilation openings on its cover and consideration of the thermodynamic processes in the block, heat transfer to the environment through radiation and convection. The study has been conducted using computer models elaborated in the software product COMSOL. The related problem 'electric field - thermal field - fluid field' has been solved. A juxtaposition of the acquired numerical results has been made. © 2020 IEEE.},

note = {cited By 0},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Hadzhiev2019,

title = {Analysis of the active and reactive power of a wind power plant with SCIG generators, connected to a high power electrical grid},

author = {I Hadzhiev and D Malamov and A Georgiev},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076122519\&doi=10.1088%2f1757-899X%2f618%2f1%2f012026\&partnerID=40\&md5=82f828b8e18c04242dcc7f688ba63866},

doi = {10.1088/1757-899X/618/1/012026},

issn = {17578981},

year  = {2019},

date = {2019-01-01},

journal = {IOP Conference Series: Materials Science and Engineering},

volume = {618},

number = {1},

note = {cited By 0},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Malamov2019,

title = {Analysis of the operational parameters of a medium voltage cable line},

author = {D Malamov and I Hadzhiev and V Zlatanova and A Pavlova and A Georgiev and S Terzieva},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85070473098\&doi=10.1109%2fELMA.2019.8771570\&partnerID=40\&md5=88026157194ff32bf5443be7eb8c751f},

doi = {10.1109/ELMA.2019.8771570},

isbn = {9781728114132},

year  = {2019},

date = {2019-01-01},

journal = {2019 16th Conference on Electrical Machines, Drives and Power Systems, ELMA 2019 - Proceedings},

note = {cited By 0},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Hadzhiev2019a,

title = {Analysis of the influence of some factors on the contact resistance of bolted busbar connections},

author = {I Hadzhiev and D Malamov and I Balabozov and I Yatchev},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076114096\&doi=10.1088%2f1757-899X%2f618%2f1%2f012025\&partnerID=40\&md5=1ce48529ac56ef79070cb8c06154e916},

doi = {10.1088/1757-899X/618/1/012025},

issn = {17578981},

year  = {2019},

date = {2019-01-01},

journal = {IOP Conference Series: Materials Science and Engineering},

volume = {618},

number = {1},

note = {cited By 0},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Hadzhiev2019b,

title = {Experimental and numerical analysis of the thermal field in a high power low voltage fuse},

author = {I Hadzhiev and D Malamov and I Balabozov and I Yatchev},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85070461401\&doi=10.1109%2fELMA.2019.8771553\&partnerID=40\&md5=2937ed721905f50c3d739254b8b8e699},

doi = {10.1109/ELMA.2019.8771553},

isbn = {9781728114132},

year  = {2019},

date = {2019-01-01},

journal = {2019 16th Conference on Electrical Machines, Drives and Power Systems, ELMA 2019 - Proceedings},

note = {cited By 0},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Deneva2019,

title = {Interference wedged structures as high efficient optical beam splitters - Development and simple practical realization},

author = {M Deneva and P Usunova and N Kaimakanova and D Atanasov and N Ivanov and M Nenchev and E Stoykova and P Petrov},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076088360\&doi=10.1088%2f1757-899X%2f618%2f1%2f012016\&partnerID=40\&md5=06b2da291a3ca85f0858ebd951ed1060},

doi = {10.1088/1757-899X/618/1/012016},

issn = {17578981},

year  = {2019},

date = {2019-01-01},

journal = {IOP Conference Series: Materials Science and Engineering},

volume = {618},

number = {1},

note = {cited By 0},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Nenchev2019,

title = {Competitive light wavelength division multiplexing element based on tunable interference wedged structures},

author = {M Nenchev and M Deneva and E Stoykova},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85061184155\&doi=10.1117%2f12.2516698\&partnerID=40\&md5=d7b305448c1873022780359cba084f88},

doi = {10.1117/12.2516698},

issn = {0277786X},

year  = {2019},

date = {2019-01-01},

journal = {Proceedings of SPIE - The International Society for Optical Engineering},

volume = {11047},

note = {cited By 2},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Stoykova2019b,

title = {Analysis of Fizeau wedge with a non-air gap by plane wave expansion},

author = {E Stoykova and M Deneva and M Nenchev},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85074272611\&doi=10.1117%2f12.2527464\&partnerID=40\&md5=44e124b1378d160d62fcef0d7c5cd469},

doi = {10.1117/12.2527464},

issn = {0277786X},

year  = {2019},

date = {2019-01-01},

journal = {Proceedings of SPIE - The International Society for Optical Engineering},

volume = {11207},

note = {cited By 0},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Deneva2019a,

title = {Combined implementation of controllable beam splitting and wavelength division multiplexing using tunable interference wedged structures},

author = {M Deneva and M Nenchev and E Stoykova},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85071974102\&doi=10.1117%2f12.2520509\&partnerID=40\&md5=b10cee863e2fe930920931f9a3645333},

doi = {10.1117/12.2520509},

issn = {0277786X},

year  = {2019},

date = {2019-01-01},

journal = {Proceedings of SPIE - The International Society for Optical Engineering},

volume = {11029},

note = {cited By 0},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Deneva2019b,

title = {Interference wedged structures as light beam splitting elements},

author = {M Deneva and M Nenchev and E Stoykova},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85061189077\&doi=10.1117%2f12.2516696\&partnerID=40\&md5=1c2e63c62af00b70bde9f601c4939c1d},

doi = {10.1117/12.2516696},

issn = {0277786X},

year  = {2019},

date = {2019-01-01},

journal = {Proceedings of SPIE - The International Society for Optical Engineering},

volume = {11047},

note = {cited By 2},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Rangelova2019,

title = {Factor analysis of the quality of electricity},

author = {V Rangelova and V Drambalov},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85070436187\&doi=10.1109%2fELMA.2019.8771660\&partnerID=40\&md5=f55b92e37c97f941801e92981384e229},

doi = {10.1109/ELMA.2019.8771660},

isbn = {9781728114132},

year  = {2019},

date = {2019-01-01},

journal = {2019 16th Conference on Electrical Machines, Drives and Power Systems, ELMA 2019 - Proceedings},

note = {cited By 0},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Georgiev2019,

title = {Study of two-spring piezoelectric harvesters},

author = {N P Georgiev and R P Raichev},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076089528\&doi=10.1088%2f1757-899X%2f618%2f1%2f012022\&partnerID=40\&md5=b6b0167a4f420cdb3b65b506c410dc80},

doi = {10.1088/1757-899X/618/1/012022},

issn = {17578981},

year  = {2019},

date = {2019-01-01},

journal = {IOP Conference Series: Materials Science and Engineering},

volume = {618},

number = {1},

note = {cited By 0},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Georgiev2019a,

title = {Study of a two-spring electromagnetic harvester},

author = {N P Georgiev and R P Raichev},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076087503\&doi=10.1088%2f1757-899X%2f618%2f1%2f012021\&partnerID=40\&md5=33a809a8c04f24df4ff232f67b98f229},

doi = {10.1088/1757-899X/618/1/012021},

issn = {17578981},

year  = {2019},

date = {2019-01-01},

journal = {IOP Conference Series: Materials Science and Engineering},

volume = {618},

number = {1},

note = {cited By 0},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Georgiev2019b,

title = {Study of piezoelectric spring harvesters},

author = {N Georgiev and R Raychev},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85070454058\&doi=10.1109%2fELMA.2019.8771683\&partnerID=40\&md5=220f835508e47b6bd2ce3b73cbd576b3},

doi = {10.1109/ELMA.2019.8771683},

isbn = {9781728114132},

year  = {2019},

date = {2019-01-01},

journal = {2019 16th Conference on Electrical Machines, Drives and Power Systems, ELMA 2019 - Proceedings},

note = {cited By 0},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Stoykova2019,

title = {Determining the parameters of induction motors by Genetic Algorithms},

author = {S Stoykova and V Spasov},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076099023\&doi=10.1088%2f1757-899X%2f618%2f1%2f012023\&partnerID=40\&md5=460a2d337219a5bfbd326f328ffe3f1f},

doi = {10.1088/1757-899X/618/1/012023},

issn = {17578981},

year  = {2019},

date = {2019-01-01},

journal = {IOP Conference Series: Materials Science and Engineering},

volume = {618},

number = {1},

note = {cited By 0},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Stoykova2019a,

title = {Choice of fitness functions and parameter settings in Genetic Algorithms for analysis of induction motors},

author = {S Stoykova and V Spasov},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076086712\&doi=10.1088%2f1757-899X%2f618%2f1%2f012024\&partnerID=40\&md5=61b4a4fd76e8baafda6df3cc62d81d42},

doi = {10.1088/1757-899X/618/1/012024},

issn = {17578981},

year  = {2019},

date = {2019-01-01},

journal = {IOP Conference Series: Materials Science and Engineering},

volume = {618},

number = {1},

note = {cited By 0},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Yatchev2018,

title = {Influence of the Air Gap of Hybrid Systems with Magnetic Flux Modulation},

author = {I Yatchev and I Balabozov and K Hinov and I Hadzhiev},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85068675992\&doi=10.1109%2fISFEE.2018.8742445\&partnerID=40\&md5=3e109304838270289c28f8aaa4388f15},

doi = {10.1109/ISFEE.2018.8742445},

isbn = {9781538672129},

year  = {2018},

date = {2018-01-01},

journal = {2018 International Symposium on Fundamentals of Electrical Engineering, ISFEE 2018},

note = {cited By 0},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Hadzhiev2018,

title = {Conjugate Heat Transfer Analysis Using 3D FEM Model of an Oil-immersed Distribution Transformer},

author = {I Hadzhiev and I Yatchev and E Mechkov},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85060572442\&doi=10.1109%2fHiTech.2018.8566619\&partnerID=40\&md5=aa064658bd041fdc1f7ec14483a2b0d1},

doi = {10.1109/HiTech.2018.8566619},

isbn = {9781538670392},

year  = {2018},

date = {2018-01-01},

journal = {International Conference on High Technology for Sustainable Development, HiTech 2018 - Proceedings},

note = {cited By 0},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}

@conference{Hadzhicv2018,

title = {Influence of the heating on the force of a solenoid actuator with T-shaped armature},

author = {I Hadzhicv and D Malamov and I Yatchev},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85053858280\&doi=10.1109%2fSIELA.2018.8447087\&partnerID=40\&md5=bd431dedfb5909e236dde7224371ed29},

doi = {10.1109/SIELA.2018.8447087},

isbn = {9781538634196},

year  = {2018},

date = {2018-01-01},

journal = {2018 20th International Symposium on Electrical Apparatus and Technologies, SIELA 2018 - Proceedings},

note = {cited By 2},

keywords = {ee},

pubstate = {published},

tppubtype = {conference}

}