Wind Farm Electrical Power
Resume:
IT-
Skills
DigSilent Powerfactory, Matlab/Simulink, Python, C,C++,
RDBMS(Database),MS office
Management),MS Office, AutoCAD(Electrical), PLC.
Work
Experience
Internship: Asset Management, Grid Planning, TenneT TSO GmbH Duration: 6 months (October 2018-March 2019)
Research of harmonics/Power quality issues in Electrical Grid using DigSilent Powerfactory software tool and training in the programming language Python and evaluation of extensive measurement data.
Automation of evaluation processes for voltage harmonic measurement data with python.
Application of the automation to extensive measurement data.
Different types of visualization of the evaluation results in Python and DigSilent Powerfactory.
Assistance in the analysis of measured harmonics grid data’s .
Create a documentation of the automated evaluation processes.
Matpower coding for Load flow analysis and model the wind farm grid system in MATLAB/Simulink and also analysis load flow in DigSilent Powerfactory.
Implementation of Three-Phase load flow simulator” and perform the EMT/RMS Simulation in DigSilent Powerfactory.
Internship : Karlsruhe Institute for Technology
Duration: 2 months (Aug 2018-Sep 2018)
CURRICULUM VITAE
SUJATHA BALASUBRAMANIAN M.Sc., Electrical Engineering Academic Profile
Contact
Email-Id
Address
Date of birth
Nationality
Languages
Known
adnd4k@r.postjobfree.com
8/27,2nd street, Gandhi Nagar
Guduvacheery,Chennai- 603202
12- October-1990
Indian
English-Advanced, Business Proficiency
Deutsch-Intermediate (A2)
Tamil- Mother Tongue
Master Electrical Engineering, Universität Rostock, Germany Main Focus: Electrical Control and Protection, Electrical Symmetrical Operation and Control, Renewable Energy Sources, High Voltage Engineering, Electrical Power system Disturbed operation, Modern Wind Turbine, Modeling of Mechtronic System Completed Credit Points: 120 ECTS
Results/Points: 2.8 from 5
Bachelor(2009-2012) Electrical and Electronics Engineering, Anna University, India Results/Points: 8.3 from 10
Diploma(2006-2009) Electrical and Electronics Engineering, Directorate of Technical Education, India
Results/Points: 89%
Technical Profile
2
Work Student : Electrical Energy Supply, Universität Rostock Duration: 5 months (May 2017-Sep 2017)
Academic Projects
Master Thesis
Flexible compensation strategy for voltage Source Converter under unbalanced and harmonic condition based on a Hybrid-Virtual Impedance method”
The tasks include modeling of network components with DigSilent Powerfactory, Matlab/ Simulink and design the appropriate control structure of the Hybrid –Virtual impedance method, Perform the harmonic/Power quality analysis,Frequency sweep analysis and dynamic RMS/EMT simulation.
The main objective of this thesis work is used to control the harmonic output impedance of the VSC under unbalanced and harmonic condition. There are two strategies incorporated in thesis work are
Proposed strategy (Hybrid Feed forward – Feedback Virtual Impedance method)
Existing method ( Single Feed forward or Feedback)
For the objective of the thesis the control structure of HFF-VI is constructed in DigSilent Powerfactory. The block mainly consists of a reduced resonant controller, compensation factor, grid impedance. The input to the blocks is feed forward voltage of the Point of common coupling and output current of the VSC. By varying the cut-off frequency, bandwidth, simultaneously varying the magnitude response of feed forward voltage and feedback current of the VSC to control harmonic output impedance of the VSC in a wide range. Coming to the second method SFF. The block consists of the bandpass filter and the inputs of either Feed forward voltage or Feedback current. Here we vary any one of the magnitude response feed forward or feedback. Comparing both the results the above method has no overmodulation, instability problems. But SFF has overmodulation effects.
Dynamic RMS / EMT Simulation – DigSilent Powerfactory.
Modeling Slack generators and PV generators with AC power sources powered by battery & fuel cell /Electrolyzer are connected to the hydrogen storage.
Design of the appropriate control structure to represent the power electronic converter.
Investigations on the control of Electrical Energy systems with increased integration of renewable energy
3
Effective communication skills both verbally and written
Fast and productive relationships with people in the form environment.
At the same time working independently and motivating a team to lead. The testing of the DSL modules(HFF-VI and SFF) in 30 wind turbine each having a rated power of 1,5Mw and necessary controllers with fully rated converter and finally connected to the 110Kv External grid with the unbalanced system. The following analysis is done:
Load flow analysis, Dynamic RMS/EMT simulation, Harmonic/ Power quality and Frequency sweep analysis.
The excepted outputs are checking the voltage at busbars, network impedances at busbars, voltage harmonics distortion, current harmonic distortion, the harmonic output impedance of the VSC with compensation and without compensation.
Master Specialization
Electrical Engg
(18 ECTS)
Bachelor’s Project
Requirements of Protective Relay in VSC-HVDC based power Generation
Modeling the Protective Differential relay for VSC-HVDC based offshore wind farms using DigSilent Powerfactory.
Perform the Short circuit analysis and dynamic RMS and EMT simulations.
Comparison of results are done for both HVAC and HVDC system. Hybrid Particle Swarm Optimization Algorithm for solution of Optimal Power Flow using FACTS Controllers.
Apply hybrid PSO optimization technique to solve the multi objective OPF problems, to improve the quality of the power system.
The sub problem is solved by the Modified Interior Point programming methods.
Two types of FACTS are used for this project TCSC(Thyristor controlled series capacitor), SVC(Static Var compensation).
Simulations are performed on IEEE-30 bus test system with bus voltage, real power, reactive power and line flow constraints.
Coding are done in MATLAB.
Personal Profile
Confident, Patience and Hardworking.
Interests
Exploring new places, Gardening, Painting
Declaration
I hereby declarethat all the above stated information is correct to thebestof my knowledge. Place: Chennai,
Date: 15/06/2021
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