Point Estimate Method for Voltage Unbalance Evaluation in Residential Distribution Networks with High Penetration of Small Wind Turbines [PDF]
Energies, 2014 Voltage unbalance (VU) in residential distribution networks (RDNs) is mainly caused by load unbalance in three phases, resulting from network configuration and load-variations.
Chao Long +3 more
doaj +4 more sources
Improved Method for Determining Voltage Unbalance Factor Using Induction Motors
Energies, 2022 This work shows an alternative method to determine the Voltage Unbalance Factor in a power grid by using both the mean value of the line voltages and Current Unbalance Factor in induction motors. Twenty unbalanced voltage points on three induction motors
Luis Guasch-Pesquer +3 more
doaj +2 more sources
Detection of incipient rotor unbalance fault based on the RIME-VMD and modified-WKN [PDF]
Scientific ReportsDue to the high incidence and inconspicuous initial characteristics of rotor unbalance faults, the detection of incipient unbalance faults is becoming a very challenging problem.
Qian Wang, Shuo Hu, Xinya Wang
doaj +2 more sources
Flow stability and distribution in horizontal serpentine tube bundles with vertical headers [PDF]
HeliyonParticle-based systems have immense potential for combining thermal energy storage (TES) with renewable energy sources. The so-called sandTES system, which is an active TES system, utilizes sand or other small particles as a storage material and consists
Viktoria Illyés +4 more
doaj +2 more sources
AI-based hybrid power quality control system for electrical railway using single phase PV-UPQC with Lyapunov optimization [PDF]
Scientific ReportsThis research paper presents an advanced AI-driven hybrid power quality management system for electrical railways that addresses critical challenges in 25 kV AC traction networks through a novel integration of single-phase PV-UPQC with ANN-Lyapunov ...
D. K. Nishad +4 more
doaj +2 more sources
Comprehensive Modeling of Induction Motor Imbalance Condition to Precise Assessment of Steady State Performance Based on Complex Current Unbalance Factor [PDF]
مجله مدل سازی در مهندسی, 2021 After a comprehensive study of voltage unbalance issue, this paper presents the defects of some unbalance factors and concentrates on the importance of considering the angle of complex voltage unbalance factor (CVUF) in order to unbalanced condition ...
Saeed Maghsoodi +3 more
doaj +1 more source
INVESTIGATION OF LOAD CURVE UNBALANCE FACTOR IN 0.4 KV ELECTRIC NETWORKS IN ARMENIA
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2005 The purpose of the paper is to investigate a load curve unbalance factor which is an integrated indicator of electric energy consumption character in 0.4 kV electric networks.
T. S. Gnuni
doaj +1 more source
Machines, 2023 Rotor unbalance is the most important factor affecting the dynamic performance of aircraft engines. The existing unbalance prediction and control methods are insufficient for multi-stage rotors.
Yingjie Zhao +5 more
doaj +1 more source
Advances in Electrical and Electronic Engineering, 2021 This paper develops a mathematical model for analyzing the steady-state performance of the Slip Power Recovery Induction Motor Drive System (SPRIMDS) which operates under unbalance supply voltage conditions.
Hilmi Fadhil Ameen, Fadhil Toufick Aula
doaj +1 more source
IEEE Access, 2021 It is well known that three-phase induction motors have to be derated in the presence of supply voltage unbalance (negative sequence) exceeding a stipulated limit of 1% based on several widely used standards.
Pathum Sudasinghe +4 more
doaj +1 more source