Results 31 to 40 of about 602 (214)

POWER RIPPLE REDUCTION OF DPC DFIG DRIVE USING ANN CONTROLLER [PDF]

Acta Electrotechnica et Informatica, 2020
Over the past years, many kinds of control strategies is proposed for doubly fed induction generators drives. Among them, direct power control (DPC) has gained more importance due to simple control structures and fast dynamic response. However, it has a
Habib BENBOUHENNI, Abdelkader BELAIDI, Zinelaabidine BOUDJEMA   +2 more
doaj   +1 more source

Comparative performance analysis of backstepping and sliding mode control for static synchronous compensators based on flying capacitor multicell converters

Electrical engineering & Electromechanics
Introduction. The integration of a static synchronous compensator (STATCOM) based on a flying capacitor multicell converter (FCMC) provides an effective solution for dynamic reactive power compensation and voltage quality improvement.
S. Belakehal, M. L. Srief
doaj   +1 more source

GENETIC ALGORITHM BASED SHORT-TERM SCDEDULING OF REACTIVE POWER CONTROLLERS

Electrica, 2005
This paper presents a genetic algorithm-based approach for short–term scheduling of reactive power controllers. The objective of this paper is to determine the proper settings of the control devices (capacitor banks and transformer taps) for the next 24 ...
Husam SHAHEEN, Jia MA, Shijie CHENG
doaj   +2 more sources

A Five-Level H-Bridge STATCOM for an Off-Grid PV Solar Farm under Two Controllers PI and PIλ-MPC Hybrid

International Journal of Photoenergy, 2018
Investigations were presented in order to eliminate the reactive power on microgrid loads fed by an off-grid and mid-power photovoltaic solar energy system (PVSES) with a static synchronous compensator (STATCOM) device.
Onur Ozdal Mengi
doaj   +1 more source

Establishing an Apheresis Medicine Program in a Resource‐Constrained Setting: A 5‐Year Experience From Lagos, Nigeria

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Establishing a comprehensive apheresis medicine program in a resource‐constrained setting presents significant structural, financial, and logistical challenges. Despite the growing clinical importance of apheresis services globally, published experience from sub‐Saharan Africa remains sparse.
Folasade Adelekan‐Popoola, Shakirat Gold‐Olufadi, Olufunto Olufela Kalejaiye, Abdullateef Ogala, Rasheed A. Balogun   +4 more
wiley   +1 more source

Control of the Reactive Power Supplied by a Matrix Converter

IEEE Transactions on Energy Conversion, 2009
In this paper, the control of the reactive power supplied by a matrix converter to a grid is presented. A matrix converter is used to feed an induction generator using a space vector modulation algorithm. An input current observer, implemented using an estimation of the modulation matrix, is used in a nonlinear controller that regulates the reactive ...
Cardenas, Roberto, Pena, Ruben, Clare, Jon, Wheeler, Patrick   +3 more
openaire   +5 more sources

Serum Myonectin Levels Are Positively Associated With Physical Function and Lower Frailty‐Related Limitation in Maintenance Hemodialysis Patients: A Cross‐Sectional Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Maintenance hemodialysis (MHD) patients frequently suffer from frailty, characterized by reduced physical function and poor prognosis. Myokines, such as myonectin, secreted by muscle, are emerging regulators of systemic health. This study investigated the relationship between serum myonectin, adipokines (adiponectin, omentin), and ...
Kenichi Kono, Yoshifumi Moriyama, Koji Ohashi, Naoya Otaka, Minako Tatsumi, Toyoaki Murohara, Noriyuki Ouchi, Satoru Oshima   +7 more
wiley   +1 more source

Linear matrix inequality approach in stability improvement through reactive power control in hybrid distributed generation system

IET Smart Grid, 2019
Stability of a standalone hybrid power system (HPS) in a smart grid is always a challenging task. Further, the operational stability of the power system depends on the associated communication infrastructure.
Asit Mohanty, Meera Viswavandya, Meera Viswavandya, Prakash K. Ray, Sthitapragyan Mohanty, Pragyan P. Mohanty   +5 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

GENETIC ALGORITHM BASED SHORT-TERM SCHEDULING OF REACTIVE POWER CONTROLLERS

Electrica, 2005
This paper presents a genetic algorithm-based approach for short–term scheduling of reactive power controllers. The objective of this paper is to determine the proper settings of the control devices (capacitor banks and transformer taps) for the next 24 ...
Husam SHAHEEN, Jia MA, Shijie CHENG
doaj   +2 more sources