Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Chongming Qiao"'
Publikováno v:
Journal of Medical Internet Research, Vol 26, p e50057 (2024)
BackgroundLong COVID has widened the health gap across society and highlighted the vulnerabilities and risks faced by health care systems. For instance, the global trend of medical workers resigning has become a prominent topic on social media. In re
Externí odkaz:
https://doaj.org/article/351d07b240a2418fb2cf6e668d366b24
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 51:1623-1630
In this paper, analysis and design for a single-phase active power filter (APF) with one-cycle control is presented. The proposed control method eliminates the need of sensing the load current, a nontrivial task of calculating the harmonics and react
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6c2c55b1daa4b4e7168ec2fb8a73bb5
https://doi.org/10.1109/tcsi.2004.832801
https://doi.org/10.1109/tcsi.2004.832801
Publikováno v:
IEEE Transactions on Industrial Electronics. 51:455-463
Active power filters (APFs) provides an effective measure to eliminate the power line harmonic/reactive currents generated by nonlinear loads or by distributed energy sources that are connected to the grid. Active power filters are typically connecte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19756002b0587b9f6413c7cd41ed9a40
https://doi.org/10.1109/tie.2004.825223
https://doi.org/10.1109/tie.2004.825223
Autor:
Keyue Smedley, Chongming Qiao
Publikováno v:
IEEE Transactions on Power Electronics. 18:952-957
A unified constant-frequency integration (UCI) controller for a three-phase star-connected switch three-level rectifier (VIENNA) with unity-power-factor-correction is proposed. One of advantages of this rectifier is that the switch voltage stress is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73b6503052da8315f010b9eeb96be88c
https://doi.org/10.1109/tpel.2003.813759
https://doi.org/10.1109/tpel.2003.813759
Autor:
Chongming Qiao, Keyue Smedley
Publikováno v:
IEEE Transactions on Industrial Electronics. 50:100-107
In this paper, a three-phase six-switch standard boost rectifier with unity-power-factor correction is investigated. A general equation is derived that relates the input phase voltages, output DC voltage, and duty ratios of the switches in continuous
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1d508bca897c470fba75a4262d1ed26
https://doi.org/10.1109/tie.2002.804980
https://doi.org/10.1109/tie.2002.804980
Autor:
Chongming Qiao, Keyue Smedley
Publikováno v:
IEEE Transactions on Power Electronics. 17:925-934
A general constant-frequency power-factor-correction (PFC) controller is proposed for three-phase rectifiers with parallel-connected dual-boost topologies. This paper shows that unity power factor and low current distortion in all three phases can be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cae89342119b452b93a88b2357b9f57f
https://doi.org/10.1109/tpel.2002.805582
https://doi.org/10.1109/tpel.2002.805582
Autor:
Chongming Qiao, Keyue Smedley
Publikováno v:
IEEE Transactions on Industry Applications. 38:149-158
In this paper, a unified constant-frequency integration control method for a three-phase bipolar mode active power filter is proposed. The proposed control method eliminates the use of any multipliers, the need of sensing three-phase load current, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4df4192ec532ac3095be5106d8c4497f
https://doi.org/10.1109/28.980369
https://doi.org/10.1109/28.980369
Autor:
null Chongming Qiao, K.M. Smedley
Publikováno v:
IEEE Transactions on Industry Applications. 38:137-148
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b03e66288085704db570dcb8921f3db9
https://doi.org/10.1109/28.980368
https://doi.org/10.1109/28.980368
Publikováno v:
IEEE Transactions on Power Electronics. 16:428-436
An active power filter (APF) is a device that is connected in parallel to and cancels the reactive and harmonic currents from a group of nonlinear loads so that the resulting total current drawn from the AC mains is sinusoidal. This paper presents a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9dc51c51c07be3dc42c5c6a9f727275d
https://doi.org/10.1109/63.923776
https://doi.org/10.1109/63.923776
Autor:
Chongming Qiao, J. Zhang
Publikováno v:
IEEE 36th Conference on Power Electronics Specialists, 2005..
Battery-operated system such as cell-phone, digital camera becomes more and more popular. In this application, a boost-type converter is usually required to convert low battery voltage to high voltage application. In this paper, a variable frequency
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33f77c26af5e80feb86b25a4b96c2327
https://doi.org/10.1109/pesc.2005.1581784
https://doi.org/10.1109/pesc.2005.1581784