Results 11 to 20 of about 884,436 (268)

Dynamic Stability Study of Grid-Connected Inverter Based on Virtual Synchronizer under Weak Grid

open access: yesEnergies, 2022
The power grid has the characteristics of a weak grid with an increase in new energy penetration in the power system. Power electronic-based renewable generation brings issues that weaken the entire system, including the loss of inertia.
Yinghui Li   +4 more
doaj   +1 more source

Research of Motor Soft Start by High Voltage Motor Drive Inverter [PDF]

open access: yesE3S Web of Conferences, 2021
The over-current phenomenon of direct starting of high voltage and high power motor is serious bad for the safety of motor. We are usually using motor soft start method when we need to start a motor.
Fang Jing, Zeng Le, Li Qianqian
doaj   +1 more source

Schedule Strategy Considering the Overload Violation Risk to the Security Region in Distribution Networks

open access: yesEnergies, 2022
Due to the uncertainty of the nodal power caused by the varying renewable energies and the variety of loads, the line power of the distribution network (DN) is uncertainty also. In extreme scenarios, the line power may exceed the loading limits and incur
Jiacheng Jia   +3 more
doaj   +1 more source

Two‐layer model of siting and sizing for active power filters and static var generators considering reactive power capability and active power curtailment of DGs

open access: yesIET Generation, Transmission & Distribution, 2022
To solve the voltage harmonics and voltage deviation caused by highly penetrated distributed generations (DGs) and power electronic equipment in distribution networks, a two‐layer model of the allocation for the voltage detection active power filters ...
Shuya Tian   +6 more
doaj   +1 more source

Research on sensorless control of HSPMSM based on a discrete full-order sliding mode observer

open access: yesEnergy Reports, 2023
To address the inaccuracy of the observed rotor position caused by the large estimated back-electromotive force harmonics of the high-speed permanent magnet synchronous motor (HSPMSM) under the conventional sliding mode observer, this paper presents an ...
Shengwen Fan   +3 more
doaj   +1 more source

High-Frequency Common-Mode Voltage Reduced Space Vector Modulation for Grid-Connected Current-Source Inverter

open access: yesWorld Electric Vehicle Journal, 2022
Suitable space vector modulation (SVM) with reduced high-frequency common-mode voltages (HF-CMVs) for grid-connected current-source inverters (CSIs) have not been well investigated yet.
Hang Gao, Tahmin Mahmud
doaj   +1 more source

Multiphase induction motor drives - a technology status review [PDF]

open access: yes, 2007
The area of multiphase variable-speed motor drives in general and multiphase induction motor drives in particular has experienced a substantial growth since the beginning of this century.
Abbas   +121 more
core   +1 more source

An implementation of rotor speed observer for sensorless induction motor drive in case of machine parameter uncertainty [PDF]

open access: yes, 2018
The paper describes observers using model reference adaptive system for sensorless induction motor drive with the pulse width modulator and the direct torque control under the circumstances of incorrect information of induction motor parameters.
Brandštetter, Pavel   +3 more
core   +3 more sources

Analysis and Experimental Verification of New Power Flow Control for Grid-Connected Inverter with LCL Filter in Microgrid

open access: yesThe Scientific World Journal, 2014
Microgrid is an effective way to integrate the distributed energy resources into the utility networks. One of the most important issues is the power flow control of grid-connected voltage-source inverter in microgrid.
Herong Gu   +4 more
doaj   +1 more source

Economic Operation Evaluation of Active Distribution Network Based on Fuzzy Borda Method

open access: yesIEEE Access, 2020
In order to make up for the shortcomings of the development of traditional distribution networks, and promote the diversification of energy structure, active distribution network (ADN) came into being.
Liye Ma, Xiaoming Zhang
doaj   +1 more source

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