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Design of a multifunction novel flexible fault current limiter for AC distribution network
- Source :
- PLoS ONE, Vol 16, Iss 4, p e0245956 (2021), PLoS ONE
- Publication Year :
- 2021
- Publisher :
- Public Library of Science (PLoS), 2021.
-
Abstract
- Based on the separation voltage type of cascaded H bridge-modular multilevel converters (CHB-MMC) and current predictive model control (CPMC) technology, a novel flexible fault-current limiter (NFFCL) is firstly proposed for restraining the negative impact of the distribution network’s disturbance in this paper. When a disturbance occurs, the inner-loop CPMC of the multilevel converters establish the value function to offer the specific current, thus increasing the voltage deviation at both ends of the series capacitor or generating reverse harmonic compensation voltage. In that case, three single-phase MNFFCLs can be regarded as variable voltage sources to eliminate the negative effects of faults or harmonics. Owing to the multi-capacitance series structure, the maximum voltage drops of the single capacitance can be predetermined by the number of capacitors. And with the low voltage drop of single capacitance, the output current of the CHB-MMC can also be controlled within an acceptable range. Through the simulation results, the disturbance’s negative impact on the non-fault area can be eliminated almost 100%.
- Subjects :
- Computer and Information Sciences
Distribution Curves
Computer science
Science
Materials Science
Material Properties
Capacitance
Equipment
Control Systems
Capacitors
Hardware_PERFORMANCEANDRELIABILITY
Electric Capacitance
Systems Science
law.invention
Electric Power Supplies
Electronics Engineering
Hardware_GENERAL
Control theory
law
Industrial Engineering
Fault current limiter
Voltage source
Multidisciplinary
Models, Theoretical
Control Engineering
Probability Theory
Capacitor
Physical Sciences
Harmonic
Engineering and Technology
Medicine
Electronics
Electrical Faults
Low voltage
Electrical Engineering
Mathematics
Network Analysis
Voltage drop
Research Article
Electrical Circuits
Statistical Distributions
Voltage
Subjects
Details
- ISSN :
- 19326203
- Volume :
- 16
- Database :
- OpenAIRE
- Journal :
- PLOS ONE
- Accession number :
- edsair.doi.dedup.....3593723e7e1002ec3c9c2780c0b0d2cf