Results 11 to 20 of about 776,968 (306)
IEEE Access, 2021 The emergence of fast-switching wide-bandgap (GaN, SiC) power electronics devices has enabled motor drive systems to achieve high efficiency, power density, control bandwidth and high-level of integration.
Yipu Xu +6 more
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Research on the operational performance of high speed permanent magnet generator with controlled rectifier in distributed generation [PDF]
Archives of Electrical Engineering, 2018 The uncontrolled rectifier and controlled rectifier which use fixed switching frequency control strategy are applied usually during the working of a high-power high- speed permanent magnet generator (HSPMG).
Qiu Hongbo +3 more
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Nantong Daxue xuebao. Ziran kexue ban, 2021 In order to reduce the switching frequency involved in the traditional three-level model predictive control utilized for permanent magnet synchronous motors(PMSMs), a model predictive torque control scheme associated with the switching frequency ...
YU Feng; ZHU Chenguang; WU Xiaoxin
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Ultrafast optical switching of three-dimensional Si inverse opal photonic band gap crystals [PDF]
, 2007 We present ultrafast optical switching experiments on 3D photonic band gap crystals. Switching the Si inverse opal is achieved by optically exciting free carriers by a two-photon process. We probe reflectivity in the frequency range of second order Bragg
Albert Polman +8 more
core +3 more sources
Frequency Characteristics of a Subnanosecond Plasma Switch [PDF]
Russian Physics Journal, 2019 Frequency characteristics of a subnanosecond plasma switch based on a combination of an open discharge or a discharge in a hollow cathode and a capillary discharge removed from the internal cavity of the plasma cathode are presented. It is shown that in the presence of an external screen that provides a capacitive discharge and hence, exclusion of the ...
P.A. Bokhan +3 more
openaire +1 more source
Improved current-regulated delta modulator for reducing switching frequency and low-frequency current error in permanent magnet brushless AC drives [PDF]
, 2005 The conventional current-regulated delta modulator (CRDM) results in a high current ripple and a high switching frequency at low rotational speeds, and in low-frequency current harmonics, including a fundamental current error, at high rotational speeds ...
Howe, D., Wipasuramonton, P., Zhu, Z.Q.
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АДАПТИВНЕ УПРАВЛІННЯ РЕЛЕЙНИМ РЕГУЛЯТОРОМ ТРИФАЗНОГО СИЛОВОГО АКТИВНОГО ФІЛЬТРА
Elektrotehnìka ta Elektroenergetika, 2014 Current control relay of three-phase active power filter provides the toggle power switches, when the current error exceeds a fixed value (hysteresis band), while the frequency of setting options is variable.
R. V. Vlasenko, O. V. Bialobrzeski
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Energies, 2022 The high-frequency electromagnetic noise caused by a frequency converter power supply has become the main composition of the vibration and noise of frequency-converter-driven PMSMs.
Jiabo Shou +7 more
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Switching frequency regulation in sliding mode control for synchronous buck converter
The Journal of Engineering, 2018 This study aims to control the switching frequency of synchronous buck (SR-buck) converters using the second-order sliding mode controller by prescribed control law.
Songbin Liu, Zhiyuan Feng, Yu Cai
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IET Power Electronics, 2021 For three‐level inverters, hysteresis current control (HCC) has been widely used in applications such as active power filters due to its fast‐dynamic response, and it does not need to control each frequency separately with multiple controllers, which ...
Haifeng Wang +3 more
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