Results 21 to 30 of about 3,949 (264)

Linear Modal Analysis of Doubly-Fed Induction Generator (DFIG) Torsional Interaction: Effect of DFIG Controllers and System Parameters

Advances in Electrical and Electronic Engineering, 2018
Clean energy sources like wind energy have received great attention due to growing demand for electrical energy and increase of environmental pollution.
Ali Ziaei, Reza Ghazi, Roohalamin Zeinali Davarani   +2 more
doaj   +1 more source

Distributed Optimal Reactive Power Control of Power Systems

IEEE Access, 2018
To accommodate the increasing penetration level of distributed generators (DGs) in the electrical energy power system, appropriate reactive power control of DGs, which can lead to the voltage profile improvement and power loss minimization, should be addressed.
Irfan Khan 0001, Yinliang Xu, Hongbin Sun 0002, Vikram Bhattacharjee   +3 more
openaire   +2 more sources

Multiagent voltage and reactive power control system [PDF]

EAI Endorsed Transactions on Energy Web, 2014
This paper is devoted to the research of multiagent voltage and reactive power control system development. The prototype of the system has been developed by R&D Center at FGC UES (Russia). The control system architecture is based on the innovative multiagent system theory application that leads to the achievement of several significant advantages ...
I. Arkhipov, A. Molskij, A. Ivanov, D. Novickij, Dmitrii Sorokin, D. Holkin   +5 more
openaire   +2 more sources

A Digital Controller for Reactivity Monitoring and Power Control

Science and Technology of Nuclear Installations, 2023
This paper introduces a controller unit for reactivity monitoring and automatic power control that was designed and constructed for the 500 kW Dalat Nuclear Research Reactor (DNRR). For power control and reactivity calculations, frequency signals from neutron measurement channels of starting and working ranges of the reactor are used.
Van-Tai Vo, Van-Kien Nguyen, Van-Diep Le, Quoc-Minh Phan, La-Son Phan, Huy-Bach Nguyen, Nhi-Dien Nguyen   +6 more
openaire   +2 more sources

Reactive Power and Voltage Control in Deregulated Environment [PDF]

2005 IEEE/PES Transmission & Distribution Conference & Exposition: Asia and Pacific, 2005
Reactive power support and voltage control is a key type of ancillary services in the deregulated electrical power market. A review of some important issues of reactive power support, including cost analysis, reactive power pricing, valuation, is presented in this paper. An optimal power flow (OPF) is used based on real time pricing theory.
Ni, Y, Zhong, J, Zhao, D, Chen, S
openaire   +2 more sources

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

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