Results 1 to 10 of about 5,878 (185)

Examination on the parameter stability region of the VSC control system in VSC-HVDC transmission systems

The Journal of Engineering, 2019
Nowadays, the voltage source converter (VSC)-based high-voltage direct current (HVDC) transmission technology is widely adopted for the integration of renewable power generations.
Long Xu, Guoyun Su, Wenjuan Du, Chen Chen, Bixing Ren, Haifeng Wang   +5 more
doaj   +2 more sources

Spider monkey optimization (SMO) – lattice Levenberg–Marquardt recursive least squares based grid synchronization control scheme for a three-phase PV system [PDF]

Archives of Control Sciences, 2021
This paper presents a new grid integration control scheme that employs spider monkey optimization technique for maximum power point tracking and Lattice Levenberg Marquardt Recursive estimation with a hysteresis current controller for controlling voltage
Dipak Kumar Dash, Pradip Kumar Sadhu, Bidyadhar Subudhi   +2 more
doaj   +1 more source

Improved Fuzzy Logic MPPT Controller of Stand-alone WECS-based PMSG under Stochastic Wind Environment

Revue des Énergies Renouvelables, 2023
This paper discusses the modeling and control of a Standalone WECS-based PMSG, the aim is to achieve an optimal operation of the studied WECS under a typically stochastic wind environment. The Maximum Power Point Tracking (MPPT) is guaranteed through the
Ridha Cheikh, Bendib Boualem, Hocine Belmili   +2 more
doaj   +1 more source

Frequency stabilisation using VSC-HVDC [PDF]

2016 IEEE Power and Energy Society General Meeting (PESGM), 2016
Frequency control of AC systems using VoltageSource Converter (VSC) HVDC links is of growing importanceas interconnectors and links to offshore generation replaceconventional synchronous generators in many countries. This paper investigates the use of local system feedback andadvanced droop control to achieve frequency stabilization for atwo-area test ...
Shen, L, Barnes, Mike, Preece, Robin, Milanovic, Jovica   +3 more
openaire   +3 more sources

Voltage Source Converter based High Voltage Direct Current Transmission: A Comprehensive Review of Control Strategies, Developments and Trends [PDF]

E3S Web of Conferences
The continuous increasing progress in high power and high voltage semiconductor devices leads to have a substantial impact on optimization and effective management of electric grids. These developments have great influence on High Voltage Direct Current (
Gangikunta Manohar, B Pakkirayya, Murugan A.S.S., Kar Rajib Kumar   +3 more
doaj   +1 more source

DC Admittance Model of VSCs for Stability Studies in VSC-HVDC Systems

Energies, 2023
High-voltage direct current (HVDC) systems linked to AC grids with converters are promising energy transmission systems. These systems present complex AC- and DC-side dynamic interactions. Impedance-based stability studies have recently been proposed to assess DC-side dynamics from DC-side characterization of voltage source converters (VSCs ...
Pedra Durán, Joaquim, Sainz Sapera, Luis, Monjo Mur, Lluís   +2 more
openaire   +4 more sources

MODERN APPROACHES INTEGRATED TREATMENT OF FETOPLACENTAL INSUFFICIENCY IN PREGNANT WOMEN WITH VAGINAL DISBIOSIS

Кубанский научный медицинский вестник, 2017
Aim. Evaluation of the efficiency of magnetic therapy application using the apparatus of RIKTA-02 as a part of a complex therapy of placental insufficiency in pregnant women with bacterial vaginosis.Materials and methods.
F. U. Magaeva, l. V. Majsuradze, S. V. Sagkaeva   +2 more
doaj   +1 more source

Phenotypic and genomic relationships between vulva score categories and reproductive performance in first-parity sows

Journal of Animal Science and Biotechnology, 2021
Background One of the biggest challenges in the swine industry is to increase female reproductive efficiency. Recently, vulva score categories (VSC), assessed prior to puberty, has been proposed as an indicator trait of efficient reproductive performance
Flor-Anita Corredor, Leticia P. Sanglard, Jason W. Ross, Aileen F. Keating, Richard J. Leach, Nick V. L. Serão   +5 more
doaj   +1 more source

A new symmetric modular eleven‐level inverter using single and double source unit for low voltage applications with reduced number of switches

IET Power Electronics, EarlyView., 2023
This study introduces a new modular multilevel inverter that can produce five levels of positive voltage using only six power switches and five DC voltage sources. The basic unit is composed of a single‐ and double‐source (SDS) unit. SDS reduces the number of power electronic components, such as the insulated gate bipolar transistors, freewheeling ...
Naser Fakhri, Sara Laali, Mohammad Salay Naderi, Hossein Rahimi, Saeid Gholami Farkoush   +4 more
wiley   +1 more source

PERFORMANCE COMPARISON OF MULTICELL SERIES AND NPC MULTILEVEL CONVERTERS FOR A STATCOM

Electrical engineering & Electromechanics, 2019
. In this paper, we present a comparative study of the performances of the multicells series and the Neutral-Point-Clamped (NPC) three-level converters used at synchronous static compensators (STATCOM) for the control of the voltage at a point of the ...
S. Belakehal, A. Djellad, R. Chenni
doaj   +1 more source