Results 1 to 10 of about 6,480 (133)

DC‐link low‐frequency current and voltage ripple analysis in multiphase voltage source inverters with unbalanced load

open access: yesIET Electric Power Applications, 2022
Inverter's performance and operating mode may be negatively affected by inverter input (dc‐link) current and voltage ripple. It is a common experience that even theoretically balanced loads with perfectly balanced supply voltages, such as multiphase ac ...
Marija Vujacic   +3 more
doaj   +1 more source

An optimization method for reducing the voltage fluctuation of the floating‐capacitor in ANPC five‐level inverter

open access: yesIET Power Electronics, 2023
The excessive fluctuation of the floating capacitance's (FCs) voltage affects the output performance and output power of the 3P‐5L‐ANPC converter. In order to minimize the fluctuation of the FCs voltage, an optimization control method based on zero ...
Zhan Liu   +5 more
doaj   +1 more source

A predictive control method for switching sequence selection based on SVPWM for five‐level converter

open access: yesIET Power Electronics, 2023
Aiming at the problems of complex realization, single control target and difficulty in selecting the optimal zero sequence voltage when the traditional space vector PWM (SVPWM) algorithm is adopted in five‐level active neutral‐point‐clamp (5L‐ANPC ...
Zhan Liu   +4 more
doaj   +1 more source

Effect analysis of the teaching method of mutual result correction between students in an experiment of power electronics course

open access: yesIET Circuits, Devices and Systems, 2022
In order to deepen students' understanding of experimental content and improve the accuracy of experimental results based on improving students' learning initiative, in this study, a teaching method is proposed that lets students check and correct ...
Guopeng Zhao
doaj   +1 more source

Adaptive inertia and damping of grid‐connected inverter with improved VSG control

open access: yesIET Power Electronics, 2023
The control technology of virtual synchronization generator (VSG) based on energy storage system is proposed to compensate for the inertia and damping loss caused by the grid connection of distributed generators.
Zhitao Ling   +3 more
doaj   +1 more source

Improving voltage imbalance in inverter‐based islanded microgrids during line‐to‐line short circuits

open access: yesIET Power Electronics, 2023
Line‐to‐line short circuits are the transient disturbances that cause the highest currents as well as the largest voltage imbalances in inverter‐based microgrids. This paper presents a control scheme for grid‐forming inverters in islanded microgrids that
Miguel Castilla   +4 more
doaj   +1 more source

A novel current-tracking method for active filters based on a sinusoidal internal model [for PWM invertors] [PDF]

open access: yesIEEE Transactions on Industry Applications, 2001
A new current control method based on the internal model principle in control theory is proposed. It introduces a sinusoidal internal model into the control system. It does not use any coordinate transformations. The method can be used for tracking an arbitrary number of harmonics: a DC component or fundamental frequency component signal. It is applied
Fukuda, S., Yoda, T.
openaire   +2 more sources

Detection of mechanical resonance frequencies for interior permanent magnet synchronous motor servo drives based on wavelet multiresolution filter

open access: yesThe Journal of Engineering, 2020
To realise the resonant characteristics of motor drive system, a wavelet multiresolution filter (WMF)-based scheme is proposed in this study to perform the detection of the mechanical resonant frequencies for interior permanent magnet synchronous motor ...
Faa-Jeng Lin, Cheng-I Chen, Jyun-Ru Lin
doaj   +1 more source

An analogous carrier‐based implementation of virtual space vector modulation with low common‐mode voltage and neutral‐point voltage oscillation elimination for three‐level NPC inverter

open access: yesIET Power Electronics, 2023
Balancing control of neutral‐point voltage (NPV) and reducing common‐mode voltage (CMV) are crucial for a three‐level neutral‐point‐clamped (NPC) inverter.
Zhuoxun Liu, Xiangguo Xu
doaj   +1 more source

A super‐high‐speed PM motor drive for centrifugal air compressor used in fuel cell unmanned aerial vehicle

open access: yesIET Electric Power Applications, 2023
The authors show a PM motor drive with the maximum speed of 170,000 r/min for a super‐high‐speed centrifugal air compressor, which is used in high‐altitude unmanned aerial vehicle (UAV).
Qian Zhang   +4 more
doaj   +1 more source

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