Results 61 to 70 of about 34,061 (206)
Adaptive resonant frequency tracking of piezoelectric transducers based on variable universe fuzzy PI control [PDF]
Nanotechnology and Precision EngineeringAs the power core of ultrasonic instruments, the piezoelectric transducer generates a strong impact force when operating at resonance. However, the influence of various uncertainly applied payloads on the electrical characteristics of piezoelectric ...
Xiaolong Lu +5 more
doaj +1 more source
Analysis and Control of Single Phase Grid Connected Modular Multilevel Converter in Per Unit
European Mechanical Science, 2020 In this paper, a mathematical model and control methods of a modular multilevel converter are examined in per unit. Some control algorithms, like a sorting algorithm, circulating current control, proportional resonant controller and pulse width ...
Eyüp Akpınar, Elif Beyhan
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Proportional-Integral and Proportional-Resonant Based Control Strategy for PUC Inverters
IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society, 2018 In this paper, a proportional-integral (PI) and proportional-resonant (PR) based control strategy is proposed for packed-U-cell (PUC) inverters. In the conventional PI-PI based control strategy, while the first PI regulates the DC capacitor voltage, the second PI regulates the AC load current.
Biricik, Samet, Komurcugil, Hasan
openaire +3 more sources
EnergiesPresented in this paper is a mitigation technique for an open-circuit fault (OCF) in a closed-loop Volt-per-Hertz controlled three-phase induction motor.
Mohammad Alathamneh +3 more
doaj +1 more source
Multi-terminal HVDC grids with inertia mimicry capability [PDF]
, 2016 The high-voltage multi-terminal dc (MTDC) systems are foreseen to experience an important development in the next years. Currently, they have appeared to be a prevailing technical and economical solution for harvesting offshore wind energy. In this study,
Gharehpetian, Gevorg B. +4 more
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A plug-and-play ripple mitigation approach for DC-links in hybrid systems [PDF]
, 2016 © 2016 IEEE.In this paper, a plug-and-play ripple mitigation technique is proposed. It requires only the sensing of the DC-link voltage and can operate fully independently to remove the low-frequency voltage ripple. The proposed technique is nonintrusive
Hui, SY, Lee, ATL, Li, S, Siew-Chong-Tan
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Quasi proportional-resonant control for the grid current of hybrid distribution transformer
The Journal of Engineering, 2018 Hybrid distribution transformer (HDT) has powerful control ability, which is significant for the intelligentisation of the distribution network. A kind of HDT is presented here, the grid current control system of which is emphatic researched.
Yang Liang +5 more
doaj +1 more source
Energies, 2014 The Proportional Resonant (PR) current controller provides gains at a certain frequency (resonant frequency) and eliminates steady state errors. Therefore, the PR controller can be successfully applied to single grid-connected PV inverter current control.
Ningyun Zhang, Houjun Tang, Chen Yao
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Highly sensitive frequency metrology for optical anisotropy measurements
, 2010 In this paper we present a novel apparatus aimed at measuring very small birefringences and anisotropies, based on frequency metrology and not on polarimetry as usual.
Bielsa F. +3 more
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Research on Grid-side Traction Converter with Low-order Harmonic Current Suppression Capability
机车电传动, 2018 In order to suppress the low-order harmonic current caused by the grid harmonic voltage and the DC pulsating voltage in the single-phase PWM rectifier, a control algorithm combining the DC-link voltage notch filter and the proportional resonance control ...
LIU Tong, LIU Wensheng
doaj