To restore the load voltage, dynamic voltage restorer (DVR), which installed between the supply and a sensitive load, should inject voltage and active power from DVR to the distribution system during voltage sag.
The load estimator sets the load to zero during the turn-off periods of the applied switching program and restores the load during the turn-on periods.
The series compensator restores the load voltage in less than 10 ms. In the voltage sag/swell compensation experiments, a three-phase rectifier with a large L DC filter was the sensitive load to be protected.
This study presents experimental and numerical investigations on the use of Carbon Fiber Reinforced Polymers (CFRP) as strengthening material to strengthen and restore the load carrying capacity of R.C. slabs after having cutout in the hogging moment region.
In the current study, finite element analyses were conducted to examine the biomechanical capability of a newly design dynamic stabilization system, FlexPLUS, to restore the load transmission of degenerated intervertebral L4-L5 lumotionotion segment spine under compression.
The amount of CFRP used to strengthen slabs was computed under the premise that the loss of steel reinforcement caused by the cutout would be replaced by an equivalent amount of CFRP to restore the load carrying capacity of R.C. slabs after having cut out according to the following simple relationship.
The amount of CFRP used to strengthen slabs was computed under the premise that the loss of steel reinforcement caused by the cutout would be replaced by an equivalent amount of CFRP to restore the load carrying capacity of R.C. slabs after having cutout.
The proposed method is validated by the simulation and experimental results, which show that the DVR with the suggested control scheme restores the load voltages at a low THD (total harmonic distortion) value of about 2.3% compared to 7.7%, 6.2%, and 5.4% by the typical PI, PR controllers, and conventional FBL technique, respectively.
A bone plate is required to restore the load-bearing capacity of the mandible following a segmental resection.
These findings show that although the repaired meniscus is less dynamic than the intact, suture repair helps restore the loading response of the tissue and prevents harmful separation of the edges of the tear during stance phase.
