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Engr.ASIF MEHMOOD
+00966 593807912
Date of Birth: 14th April, 1990
N.I.C. ID: 21103-6868383-9
Nationality: Pakistani
Current Location: Jeddah, Saudi Arabia
Religion: Islam
Marital Status: Single
auxiph.mehmud@gmail.com
OBJECTIVE:-
I aspire to fuse academic knowledge with rigorous practical experience by contributing
constructively in a professional, career based environment while enhancing my managerial and
interpersonal abilities in the area of Electrical Engineering.
MEMBERSHIP OF PAKISTAN ENGINEERING COUNCIL
PEC# Elect/46910
My membership as a registered engineer from Pakistan Engineering
Council can be verified online from PEC Website.
URL: http://www.pec.org.pk/getpecno.aspx
PROFESSIONAL EXPERIENCE
Electrical Engineer Nahdi Contracting and Electrical Constructions CO
7/02/2016- Upto Date
 Worked as Electrical Site Engineer for construction
of 13.8 KV underground distribution line project
inside populated city of Makkah.
i. Involved in everything right from labour
control,
ii. time management,
iii. arranging of vehicles/machinery,
iv. estimation of backfilling materials for
excavations,
v. Dealing with municipality dept. and traffic
police issues.
 At office estimated material and budgets for future
underground Power Line projects.
 Documented the job done at sites and Dealt with main
client Saudi Electricity Company to process further
for invoice.
Electrical Engineer Global construction and contracting CO
16/09/2015-30/01/2016
 Extracting/Enlisting in Excel the quantity and type of
materials from BOQs, Pole Schedules, Saudi Aramco
Standard Pole drawings and “Plan and Profile”
drawings for overhead Power Line.
 Performing Sag Calculations for determining the
required length of OHTL.
 Keeping in view the Client’s requirements and data
sheets for poles, surge arresters, load break switches,
fuses, grounding rods, pole hardware ,TECHNICALLY
SELECTING the suitable material from the Vendor’s
Catalogues to be procured for project.
 Did the above for a 69 KV transmission line project
and the currently Saudi Aramco 13.8KV power line
project.
Internee Engineer Tribal Electric Supply Company (TESCO),
01/02/2014-27/04/2014
 Have worked first-hand with protection set-up
inside substation e,g the maintenance and working
of BUCHHOLZ relays and DIFFERENTIAL
PROTECTION of transformers.
 Have observed and recorded the day to day
operations of administration eg, normal/emergency
communication between Substation Operations side
and Grid side and the instant recovery of various
distribution line faults by operation staff.
Internee Engineer Hi-Lit Transformer Reclamation Industry
2/07/2012- 2/09/2012 158/B-7 Industrial Estate Hayatabad Peshawar
Designing, Troubleshooting, and Testing (open & short circuit)
EDUCATION
8/2010 – 12/2014 Comsats Institute Of Information Technology, Abbottabad Pakistan
BSc in Electrical (Power) Engineering
 Bachelor Thesis : THD Analysis in Diode Clamped
Multilevel Inverters
 Final Total Grade: Good (2.55/4) 1st Division
2008 – /2010 Cadet College Razmak
Higher Secondary: Pre-Engineering Course (Physics, Chemistry
Mathematics)
Final Total Grade :( 763/1100, 70%) 1st Division
2006 – 2007 Cadet College Razmak
Secondary School: Physics, Chemistry Biology Mathematics.
Final Total Grade :( 694/900, 77.11%) 1st Division
CERTIFICATIONS
 PLC SCADA SINA Institute Islamabad
 AUTOCAD SINA Institute Islamabad
 Workshop on Proteus & PCB Design COMSATS Institute of Science and
Technology
FINAL YEAR PROJECT
THD ANALYSIS IN DIODE CLAMPED MULTILEVEL INVERTERS USING SELECTIVE
HARMONIC ELIMINATION PULSE WIDTH MODULATION
 Project Objective was to analyze different levels of diode clamped multilevel inverters
for Total Harmonic Distortion.
 Main Conclusion of this work was “decreasing THD trend with increasing number of
inverter levels”.
 SIMPOWER SYSTEMS Toolbox in MATLAB was used as simulation software tool.
DIODE CLAMPED MULTILEVEL INVERTERS
Multilevel Inverters are different than ordinary inverters as regards the output voltage and
current waveforms. In case of multilevel inverters output waveform resembles a staircase
sinusoidal shape which is closed to a sinusoid as compared to ordinary inverters output. Due to
comparatively more sinusoidal like, it contains less content of total harmonic distortion. As the
inverter’s size is enlarged by adding more switches and diodes the harmonics are decreased.
Among three major types namely capacitor clamped multilevel inverter, Cascaded Multilevel
Inverters and Diode clamped Multilevel Inverter, the last one is selected for analysis because of
its simplicity of structure and modulation technique.
Total Harmonic Distortion
Total harmonic distortion is a measure of harmonic content in a signal. Harmonics in any
signal are unwanted signals which create power losses and thus decrease the efficiency of a
system. In addition Harmonics heat up a device and cables thus lowering the life span of devices.
SHE PWM and Angles Calculation
Each level/step of the staircase output waveform must be set on a specific interval in time
domain to eliminate a specific harmonic. SHE PWM includes a nonlinear set of transcendental
equations which can be optimized for certain number of harmonics that are to be eliminated from
output voltage/current. SHE PWM further provides the facility to mention the percentage of
fundamental harmonic and thus sustain it to that level. For angle calculations DOgLeg
Optimization technique is utilized with the help of MATLAB software. The structure of Diode
clamped Multilevel Inverter is then simulated in MATLAB SIMULINK in which the angles
from SHE PWM are used.
Fourier Analysis of Output Voltage
MATLAB provides further facility to perform Fourier analysis of any wave shape. The
resultant waveform from DCMLI output is then analysed for harmonics (Fourier Analysis).
Conclusions of Final Year Project
Diode clamped multilevel inverters five level, nine level and twelve level were simulated
in SIMULINK and analysed . It was observed that total harmonic distortion was
decreased as the number of levels were increased and thus a high efficiency of inverter
achieved. Diode Clamped Multilevel inverter proved best option as a back up supply in
high power industries.
IT SKILL
 Microsoft Excel
 MATLAB Simulink
 Proteus
 AUTOCAD
ACTIVITIES AND WORKSHOP
 Member of Young Scientist Academy -3 days Proteus Workshop Attended
 Got second position in All University English Essay Competition.
 Member of HERTZ Society COMSATS Abbottabad.

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My CV

  • 1. Engr.ASIF MEHMOOD +00966 593807912 Date of Birth: 14th April, 1990 N.I.C. ID: 21103-6868383-9 Nationality: Pakistani Current Location: Jeddah, Saudi Arabia Religion: Islam Marital Status: Single auxiph.mehmud@gmail.com OBJECTIVE:- I aspire to fuse academic knowledge with rigorous practical experience by contributing constructively in a professional, career based environment while enhancing my managerial and interpersonal abilities in the area of Electrical Engineering. MEMBERSHIP OF PAKISTAN ENGINEERING COUNCIL PEC# Elect/46910 My membership as a registered engineer from Pakistan Engineering Council can be verified online from PEC Website. URL: http://www.pec.org.pk/getpecno.aspx PROFESSIONAL EXPERIENCE Electrical Engineer Nahdi Contracting and Electrical Constructions CO 7/02/2016- Upto Date  Worked as Electrical Site Engineer for construction of 13.8 KV underground distribution line project inside populated city of Makkah. i. Involved in everything right from labour control, ii. time management, iii. arranging of vehicles/machinery, iv. estimation of backfilling materials for excavations, v. Dealing with municipality dept. and traffic police issues.  At office estimated material and budgets for future underground Power Line projects.  Documented the job done at sites and Dealt with main
  • 2. client Saudi Electricity Company to process further for invoice. Electrical Engineer Global construction and contracting CO 16/09/2015-30/01/2016  Extracting/Enlisting in Excel the quantity and type of materials from BOQs, Pole Schedules, Saudi Aramco Standard Pole drawings and “Plan and Profile” drawings for overhead Power Line.  Performing Sag Calculations for determining the required length of OHTL.  Keeping in view the Client’s requirements and data sheets for poles, surge arresters, load break switches, fuses, grounding rods, pole hardware ,TECHNICALLY SELECTING the suitable material from the Vendor’s Catalogues to be procured for project.  Did the above for a 69 KV transmission line project and the currently Saudi Aramco 13.8KV power line project. Internee Engineer Tribal Electric Supply Company (TESCO), 01/02/2014-27/04/2014  Have worked first-hand with protection set-up inside substation e,g the maintenance and working of BUCHHOLZ relays and DIFFERENTIAL PROTECTION of transformers.  Have observed and recorded the day to day operations of administration eg, normal/emergency communication between Substation Operations side and Grid side and the instant recovery of various distribution line faults by operation staff. Internee Engineer Hi-Lit Transformer Reclamation Industry 2/07/2012- 2/09/2012 158/B-7 Industrial Estate Hayatabad Peshawar Designing, Troubleshooting, and Testing (open & short circuit)
  • 3. EDUCATION 8/2010 – 12/2014 Comsats Institute Of Information Technology, Abbottabad Pakistan BSc in Electrical (Power) Engineering  Bachelor Thesis : THD Analysis in Diode Clamped Multilevel Inverters  Final Total Grade: Good (2.55/4) 1st Division 2008 – /2010 Cadet College Razmak Higher Secondary: Pre-Engineering Course (Physics, Chemistry Mathematics) Final Total Grade :( 763/1100, 70%) 1st Division 2006 – 2007 Cadet College Razmak Secondary School: Physics, Chemistry Biology Mathematics. Final Total Grade :( 694/900, 77.11%) 1st Division CERTIFICATIONS  PLC SCADA SINA Institute Islamabad  AUTOCAD SINA Institute Islamabad  Workshop on Proteus & PCB Design COMSATS Institute of Science and Technology FINAL YEAR PROJECT THD ANALYSIS IN DIODE CLAMPED MULTILEVEL INVERTERS USING SELECTIVE HARMONIC ELIMINATION PULSE WIDTH MODULATION  Project Objective was to analyze different levels of diode clamped multilevel inverters for Total Harmonic Distortion.  Main Conclusion of this work was “decreasing THD trend with increasing number of inverter levels”.  SIMPOWER SYSTEMS Toolbox in MATLAB was used as simulation software tool. DIODE CLAMPED MULTILEVEL INVERTERS Multilevel Inverters are different than ordinary inverters as regards the output voltage and current waveforms. In case of multilevel inverters output waveform resembles a staircase sinusoidal shape which is closed to a sinusoid as compared to ordinary inverters output. Due to comparatively more sinusoidal like, it contains less content of total harmonic distortion. As the inverter’s size is enlarged by adding more switches and diodes the harmonics are decreased. Among three major types namely capacitor clamped multilevel inverter, Cascaded Multilevel Inverters and Diode clamped Multilevel Inverter, the last one is selected for analysis because of its simplicity of structure and modulation technique.
  • 4. Total Harmonic Distortion Total harmonic distortion is a measure of harmonic content in a signal. Harmonics in any signal are unwanted signals which create power losses and thus decrease the efficiency of a system. In addition Harmonics heat up a device and cables thus lowering the life span of devices. SHE PWM and Angles Calculation Each level/step of the staircase output waveform must be set on a specific interval in time domain to eliminate a specific harmonic. SHE PWM includes a nonlinear set of transcendental equations which can be optimized for certain number of harmonics that are to be eliminated from output voltage/current. SHE PWM further provides the facility to mention the percentage of fundamental harmonic and thus sustain it to that level. For angle calculations DOgLeg Optimization technique is utilized with the help of MATLAB software. The structure of Diode clamped Multilevel Inverter is then simulated in MATLAB SIMULINK in which the angles from SHE PWM are used. Fourier Analysis of Output Voltage MATLAB provides further facility to perform Fourier analysis of any wave shape. The resultant waveform from DCMLI output is then analysed for harmonics (Fourier Analysis). Conclusions of Final Year Project Diode clamped multilevel inverters five level, nine level and twelve level were simulated in SIMULINK and analysed . It was observed that total harmonic distortion was decreased as the number of levels were increased and thus a high efficiency of inverter achieved. Diode Clamped Multilevel inverter proved best option as a back up supply in high power industries. IT SKILL  Microsoft Excel  MATLAB Simulink  Proteus  AUTOCAD ACTIVITIES AND WORKSHOP  Member of Young Scientist Academy -3 days Proteus Workshop Attended  Got second position in All University English Essay Competition.  Member of HERTZ Society COMSATS Abbottabad.