Results 81 to 90 of about 1,050 (208)
Clinical and radiological outcome of stand-alone percutaneous pedicle screw fixation (SAPF) versus minimally invasive transforaminal lumbar interbody fusion (MI-TLIF). A propensity-matched cohort study [PDF]
: In adult patients affected by degenerative disc disease with lumbar instability and chronic low back pain, spine surgery with lumbar fixation aims to reduce segmental instability and pain.
Princiotto, Santo Rosario +6 more
core +1 more source
Low-Cost Active Power Filter Using Four-Switch Three-Phase Inverter Scheme
ElectricityShunt active power filters (SAPFs) have been around for a long time. They improve the quality of a current drawn from the grid when feeding non-linear loads formed by old-fashioned power electronic converters such as uncontrolled and controlled ...
Mohamed Azab
doaj +1 more source
International Transactions on Electrical Energy Systems, Volume 2025, Issue 1, 2025.This paper focuses on developing power management strategies for hybrid energy storage systems (HESSs) combining batteries and supercapacitors (SCs) with photovoltaic (PV) systems. The proposed control scheme is based on proportional‐integral (PI) controllers optimized with particle swarm optimization (PSO) and duplicate particle swarm optimization ...
Samira Heroual +6 more
wiley +1 more source
IET Power ElectronicsThe harmonic compensation of SAPF (shunt active power filter) may trigger harmonic oscillation due to the interaction with grid impedance and non‐linear loads, which distorts the power quality.
Zhilong Zhang +4 more
doaj +1 more source
An Attention‐Based Detection Method of Fatigue Cracks on Steel
Structural Control and Health Monitoring, Volume 2025, Issue 1, 2025.Steel structures are susceptible to fatigue cracking under cyclic loading, which can lead to catastrophic structural failure. In the incipient phase of crack propagation, the width of fatigue cracks typically measures less than 0.1 mm, making them difficult to detect using standard imaging techniques.
Qian-Qian Yu +5 more
wiley +1 more source
MSVPWM Based-SAPF For Harmonic Mitigation in The Distribution Network Under Unbalanced Condition [PDF]
, 2020 Unbalanced input source voltages generate extra current harmonics in addition to non-linear loads which distorts the power quality in the entire power systems.
Husen, Haider Muhamad +3 more
core +2 more sources
Research of Control System with Double Closed Loops of Three-level SAPF [PDF]
, 2011 The paper put forward a design scheme of control system with double closed loops of three-level SAPF. The system uses ip-iq method to extract harmonics and uses instantaneous reactive power theory to detect three-phase voltage and load current, so as to ...
LI Xiao-xun, ZHANG Ke
core
Journal of Marine Science and EngineeringThis paper proposes a fusion algorithm based on state-tracking collision detection and the simulated annealing potential field (SCD-SAPF) to address the challenges of obstacle avoidance for autonomous underwater vehicles (AUVs) in dynamic environments ...
Yueming Li +4 more
doaj +1 more source
Journal of Electrical and Computer Engineering, 2018 The current tracking control strategy determines the compensation performance of shunt active power filter (SAPF). Due to inadequate compensation of the main harmonic by traditional proportional integral (PI) control, a control algorithm based on PI and ...
Sen Ye +3 more
doaj +1 more source
Artificial neural network based series active power filter for self excited induction generator [PDF]
, 2015 This paper presented ANN (Artificial Neural Network) based SAPF (series active power filter) for voltage control and power quality improvement of constant speed prime mover driven self excited induction generator.
Gupta, Sushma +7 more
core +1 more source