Results 31 to 40 of about 19,788,140 (289)

Dahlin-Based Fast and Robust Current Control of a PMSM in Case of Low Carrier Ratio

open access: yesIEEE Access, 2019
The low ratio of sampling frequency to electrical frequency (carrier ratio) is a challenging issue for applications, such as high-speed or high-power drives.
Stefan Walz   +3 more
doaj   +1 more source

Discrete-Time DC-Link Voltage and Current Control of a Grid-Connected Inverter with LCL-Filter and Very Small DC-Link Capacitance

open access: yesEnergies, 2020
The paper presents a controller design for grid-connected inverters (GCI) with very small dc-link capacitance that are coupled to the grid via an LCL filter. The usual controller designs would fail and result in instability. The proposed controller has a
Oliver Kalmbach   +2 more
doaj   +1 more source

A Systemic Design Methodology of PM Generators for Fixed-Pitch Marine Current Turbines [PDF]

open access: yes, 2014
This paper deals with the systemic design of permanent magnet (PM) generator associated with fixed-pitch turbine for tidal energy generation. The main problem with marine current turbines systems are the maintenance requirements of the drive-train. It is
CHARPENTIER, Jean-Frederic   +8 more
core   +1 more source

Optimization of costs in the enterprise. Effective strategies for business

open access: yesПутеводитель предпринимателя, 2021
The article is devoted to an effective methods of cost optimization in small business. All of them, used at the right time, make it possible to improve the situation and maximize profits by reducing costs.«The process of cost optimization cannot be ...
N. Yu. Pracheva
doaj   +1 more source

Sensorless position control of permanent magnet motors with pulsating current injection and compensation of motor end-effects [PDF]

open access: yes, 2011
The sensorless position control of permanent-magnet motors is successfully implemented by superimposing a high-frequency voltage signal on the voltage reference or adding a high-frequency current signal to the current reference.
G Pellegrino   +13 more
core   +1 more source

Two Degree of Freedom Resonant Structure for Robust Current Control and Active Power Filtering [PDF]

open access: yes, 2005
This paper introduces a novel two degree of freedom resonant control structure for current control in a stationary reference frame in one- or three-phase power electronics systems. The main focus is put on the design of the controller for robust tracking
N. Bajcinca   +3 more
core   +1 more source

Power Smoothing Control in a Grid-Connected Marine Current Turbine System for Compensating Swell Effect [PDF]

open access: yes, 2013
Variations of marine current speed may lead to strong fluctuations in the power extracted by a marine current turbine (MCT). During short-time period, swell effect is the main cause for the current speed variations.
SCUILLER, Franck   +5 more
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Design and Implementation of the Permanent- Magnet Synchronous Generator Drive in Wind Generation Systems

open access: yesEnergies, 2018
The design and implementation of the permanent-magnet synchronous generator drive in wind generation systems is presented in this paper. The permanent-magnet synchronous generator (PMSG) can converse the alternating current (AC) power of the wind turbine
Yuan-Chih Chang   +2 more
doaj   +1 more source

Parameter-adaptive dead-beat predictive current control of permanent magnet synchronous motor

open access: yes电力工程技术, 2023
Dead-beat predictive current control (DPCC) has great potential in the field of motor control due to its fast response. However, it suffers from low robustness due to its sensitivity to parameter variations.
SHU Chaojun, LIU Linzhi
doaj   +1 more source

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