1. KAI YANG
Hanstav¨agen 49, SE-164 53 Kista Stockholm
Mob: (+46) 73-615 89 80
Email: kai.yang82@outlook.com
https://se.linkedin.com/in/kai-yang82
PERSONAL PROFILE
A motivated, adaptable and responsible postgraduate seeking a position within electrical or me-
chanical fields which will utilise the professional and technical skills developed through past cross-
discipline experience. I have a methodical approach to work and a strong drive to see things through
to completion.
KEY COMPETENCIES
Electric power engineering
• Electric power system modelling, harmonic/power flow calculation and simulation; measure-
ment technology and data analysis (signal processing, stochastic analysis, etc.); renewable-
power technology and power conversion; hosting capacity of distributed generation; etc.
Mechanical engineering
• Computational engineering (numerical methods and programming); experimental mechanics,
acoustics and vibration measuring; signal processing; finite-element method; structural me-
chanics; fluid dynamics modelling and calculation; material mechanics; CAD; etc.
Mathematical modelling and simulation
• Mathematical modelling (Lie algebra); statistics modelling and analysis; numerical methods;
optimizations; fuzzy logics; etc.
EXPERIENCE
Projects
• Research project “Hosting capacity of electricity grid for integration of renewable energy”:
systematic evaluation on the capacity of renewable-power integration into power grid in terms
of interharmonic distortion, based on multiple and varying emission sources which penetrate
throughout power grids, Lule˚a University of Technology, March 2015 - Sept. 2015.
• Research project “Harmonic distortion and windpower installations part 2”: modelling of inter-
harmonic origin in windpower conversion system and verification by long-term measurements
with standard power quality analysers in several wind parks in northern Sweden; systematic
evaluation and simulation of harmonic distortion in wind power plants, sponsored by Elforsk
AB Sweden, July 2012 - March 2015.
• Research project “Harmonic distortion and windpower installations part 1, Vindforsk-III”:
analysis and characterisation of harmonic distortion in wind turbines and parks, by methods
incl. statistics applied on long-term measurements; study of harmonic distortion in power
productions; time- and frequency-dependent distortion, sponsored by Elforsk AB, Sweden,
March 2010 - June 2012.
• Industrial project “Spread of harmonic emission from a windpark”: study of harmonic prop-
agation and amplification through windpower collection grid, sponsored by Alstom UK, June
2010 - Jan. 2011.
• Thesis project: study of slow-dynamic characteristics of TetraPak materials through experi-
ments, swept-sound excitation on tensioned materials, laser detection of vibrations, LabView
data-acquisition and process, Blekinge Institute of Technology, 2009.
Workshop and Working Group
• International workshop on harmonics and contribute to several joint papers in different con-
ferences, Stockholm Sweden, Jan. 2014.

2. Kai Yang Page 2
• Guest expert at working group meeting TC 88 of standard IEC 61400: time- and frequency-
dependent characteristics of windpower harmonics and interharmonics and measurement tech-
nology, Madrid Spain, Sept. 2014.
Research Lectures
• Technical lecture on wind power harmonics and the propagation for a research group of Vat-
tenfall AB, Lule˚a Sweden, March 2014.
• Lecture on wind power harmonics to master students at University of Cordoba, Cordoba Spain,
April 2014.
Teaching
• Assistant teaching for PQube project in the course “Electrical Balance of Plant Technology,
EMC and Power Quality”, Lule˚a University of Technology, study periods: Spring 2013, Spring
2014 and Spring 2015.
• Assistant teaching in the course “Large- and small-scale electricity generation, transmission
and distribution”, Lule˚a University of Technology, study periods: Autumn 2013 and Autumn
2014.
EDUCATION
2010 - 2015, Ph.D. in Electric Power Engineering with emphasis on Wind Power and Power
Quality, Lule˚a University of Technology, Skellefte˚a Sweden.
• Doctoral Thesis, On Harmonic Emission, Propagation and Aggregation in Wind Power Plants,
doi:10.13140/RG.2.1.2178.7048, Lule˚a University of Technology, Lule˚a Sweden, April 2015.
• Licentiate Thesis, Wind-Turbine Harmonic Emissions and Propagation through A Wind Farm,
doi:10.13140/RG.2.1.3227.2803, Lule˚a University of Technology, Lule˚a Sweden, June 2012.
2007 - 2009, M.Sc. in Mechanical Engineering with emphasis on Structural Engineering,
Blekinge Institute of Technology, Karlskrona Sweden.
• M.Sc. Thesis, Acoustic Measurements of the Slow Dynamics of Thin Sheets, Blekinge Institute
of Technology, Karlskrona Sweden, Oct. 2009.
2007 - 2009, M.Sc. in Mathematical Modeling and Simulation, Blekinge Institute of Tech-
nology, Karlskrona Sweden.
2006 - 2009, M.Eng. in Mechanical Design and Theory, Kunming University of Science and
Technology, Kunming China.
• M.Eng. Thesis, Measurements of the Dynamic Characteristics of Thin Sheets based on Acoustic
Excitation, Kunming University of Science and Technology, Kunming China, May 2009.
2002 - 2006, B.Eng. in Mechanical Design Manufacture & Automation, Wuhan University
of Technology, Wuhan China.
• B.Eng. Thesis, 30.5T/35.5M (40.5 T/35.5 M) Overall Design Container Handling Bridge &
Entablature Structure, Wuhan University of Technology, Wuhan China, June 2006.
PUBLICATIONS SUMMARY
Include one translated text book, two technical reports and 32 research papers, 4 of which are
published in the core-journals IEEE Transactions on Power Delivery and the Journal of Electric
Power Systems Research.
SKILLS
Software: Matlab, DigSILENT PowerFactory, NI LabView, SolidWork, Abaqus, Ansys,
etc.
Editing: LATEX, Microsoft office
Language: Chinese (mother tongue), English (fluent), Swedish (basic communication and
on-going improving)