Development of D-Statcom in hardware in the loop system for voltage SAG mitigation
The problem of power quality (PQ) is of utmost concern today. The widespread use of electronic equipment such as adjustable speed drive (ASD), programmable logic controller (PLC), information technology equipment in power electronics applications such as energy-efficient lighting brings about a c...
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2019
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/459/1/24p%20AMJAD%20MUNEIM%20MOHAMMED.pdf http://eprints.uthm.edu.my/459/2/AMJAD%20MUNEIM%20MOHAMMED%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/459/3/AMJAD%20MUNEIM%20MOHAMMED%20WATERMARK.pdf |
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| Summary: | The problem of power quality (PQ) is of utmost concern today. The widespread use of
electronic equipment such as adjustable speed drive (ASD), programmable logic
controller (PLC), information technology equipment in power electronics applications
such as energy-efficient lighting brings about a complete change in the nature of the
electrical load. These loads are simultaneously major causes and major victims due to
power quality problems. The most common types of power quality problems are
voltage drops. The main causes of the voltage drop are due to a short circuit in the
system, a switching operation, the starting of the large motor, a sudden increase in line
loads, electrical fault on utility power lines caused by an animal, trees or other objects
in contact with power lines. Therefore, this project is about to develop a Distributed
Static Compensator (D-STATCOM) for voltage sag mitigation in hardware in the loop
(HIL) with phase shift control technique for maintaining the bus bar-load voltage. It is
because the intermittent switching of heavy loads results in voltage sag in the
distribution line. The distribution line 400V and the D-STATCOM are modeled using
MATLAB-SIMULINK software. In this work, the 6-pulse D-STATCOM
configuration with IGBT has been designed. The HIL was develop using the low-cost
microcontrollers which are the Arduino Mega 2560 and Raspberry Pi Type B2 with
high accuracy response for high speed communication on mimic the real time
response. In order to run the D-STATCOM in HIL and test the mitigation of sag,
software design is first carried out to illustrate the use of D-STATCOM in mitigating
voltage sag in a distribution line. The simulation results for software design proved
that the D-STATCOM is capable of mitigating voltage sag as well as improving power
quality of a system and the voltage sag 20% was corrected from 200V to normal
voltage 245V. The D-STATCOM that has been modeled successfully and able to
mitigate the voltage sag by using D-STATCOM in (HIL). At last the results have been
analyzed and compared with the results which get in software. |
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