Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Miaoyuan Ye"'
Publikováno v:
Electric Power Systems Research. 61:127-131
We developed a new optical voltage transformer for power protection relays in HV transmission lines. Two temperature compensation approaches, namely, the temperature controller-box method and the dual-optical-path method are discussed and adopted in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a253ecd75bb5c8d79fae5d29de82d4ca
https://doi.org/10.1016/s0378-7796(02)00013-5
https://doi.org/10.1016/s0378-7796(02)00013-5
Publikováno v:
2009 Symposium on Photonics and Optoelectronics.
The influence of temperature field and stress field on OVS has been analyzed theoretically. The law that temperature field and stress field affect the stability of optical voltage sensor (OVS) was obtained. Namely, thermal-optic effect by temperature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41e68ae778915b4ae43a4ed35d953d80
https://doi.org/10.1109/sopo.2009.5230216
https://doi.org/10.1109/sopo.2009.5230216
Publikováno v:
SPIE Proceedings.
Fiber optical systems are becoming increasingly important for measurement of current and voltage in high voltage environments. Conventional electrical wiring such as transmission line for voltage transformers can readily be replaced by noise-free fib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f2240d6fd97ea965c891e5d9e4310cd
https://doi.org/10.1117/12.568721
https://doi.org/10.1117/12.568721
Publikováno v:
SPIE Proceedings.
A new optical voltage transformer is designed based on the Pockels electro-optic effect of the crystal Bi 4 Ge 3 O 12 (BGO). Here, the reflection-type longitudinal modulation Pockels cell is described in detail. The longitudinal Pockels effect is cal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e7c68f6e99b5919167f2410f78b42f2
https://doi.org/10.1117/12.440206
https://doi.org/10.1117/12.440206
Publikováno v:
SPIE Proceedings.
This paper describes techniques for improving the accuracy and stability of the optical voltage transformers (OVT), which are affected by temperature around circumstances. Higher accuracy and stability is achieved by two light- channels compensation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ef32ad6ef3e7936283df65d30272644
https://doi.org/10.1117/12.440220
https://doi.org/10.1117/12.440220
Publikováno v:
SPIE Proceedings.
This paper introduces a new type of optical fiber voltage sensor with temperature compensation ability. The dual- light structure and operation of the sensor are discussed in great detail, and a series of test curves are given. The tests show that th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1137c0ed6885f1ef289789b62013e358
https://doi.org/10.1117/12.411732
https://doi.org/10.1117/12.411732
Publikováno v:
SPIE Proceedings.
The magneto-optic current and electro-optic voltage sensing technologies were combined into a single phase unit which provides a new solution for combined current and voltage sensing and relaying applications. It senses voltage and current by making
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93a9f5d416fffb2a2fddefee7de2af12
https://doi.org/10.1117/12.401737
https://doi.org/10.1117/12.401737
Publikováno v:
SPIE Proceedings.
The stability of optical voltage transformers has been the main obstruction to its practical application. An optical voltagesensor is the core of an optical voltage transformer. This paper proposed a novel reflection-type transverse modulationoptical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2181a4d16cd075313466ae2dab2df40
https://doi.org/10.1117/12.401738
https://doi.org/10.1117/12.401738
Publikováno v:
SPIE Proceedings.
This paper presents a new optical transformer which can measure high voltage and large current simultaneously. The measurement of voltage is based on the Pockels effect. A novel structure is posed to realize an optical voltage sensor which has better
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bf14ebce25f5d683a30af530fc6fa9d
https://doi.org/10.1117/12.369375
https://doi.org/10.1117/12.369375
Publikováno v:
SPIE Proceedings.
The work introduces an optical fiber voltage transformer based on the Pockels effect. The transformer is different from a conventional electric-magnetic voltage transformer. A crystal BGO is used as sensor that is sealed in SF6 gas container; the mea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e462d0defabcacb181b712452b47fb8d
https://doi.org/10.1117/12.339097
https://doi.org/10.1117/12.339097