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Mhj Math Bollen

Bio: Mhj Math Bollen is an academic researcher from Luleå University of Technology. The author has contributed to research in topics: LED lamp & LED stage lighting. The author has an hindex of 2, co-authored 2 publications receiving 97 citations.

Papers
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Journal ArticleDOI
TL;DR: In this article, a methodology for determining the hosting capacity regarding harmonic distortions is proposed, which includes aggregation effects of harmonic currents, the influence of harmonic distortion limits and harmonic generation profile.

62 citations

Journal ArticleDOI
TL;DR: In this article, the power quality of high-power lighting networks based on LED and high-pressure sodium lamps was investigated using measurements, including harmonic currents in the frequency range up to 150 kHz for all technologies.
Abstract: High-pressure sodium lamps are currently the main lamps used in public lighting. However, the possibility of using high-power light emitting diode (LEDs) for street lighting is growing continuously due to their greater energy efficiency, robustness, long life and light control. The aim of this paper is to study the power quality of high-power lighting networks based on LED and high-pressure sodium lamps. Both electromagnetic and dimmable electronic ballasts, which can dim the lamp output smoothly and uniformly, have been used connected to high-pressure sodium lamps. High-pressure sodium lamps connected to electronic equipment have been tested with different arc power levels using dimming on a 230 V power supply. The study presented in this paper is completely based on measurements, including harmonic currents in the frequency range up to 150 kHz for all the technologies. The main results show a broadband spectrum in LED lamps which confirms other research in fluorescent lamps powered by high-frequency ball...

56 citations


Cited by
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Journal ArticleDOI
TL;DR: It was concluded that success in integrating more distributed generation hinges on accurate hosting capacity assessment, and a systematic and extensive overview of the HC research, developments, assessment techniques and enhancement technologies is provided.

314 citations

Journal ArticleDOI
TL;DR: An overview of the state-of-the-art concerning these so-called supraharmonics, and noticeably indicates the research challenges associated with waveform distortion in this frequency range.

134 citations

Journal ArticleDOI
02 Sep 2017-Energies
TL;DR: In this paper, the hosting capacity approach is presented as a tool for distribution-system planning under uncertainty, and a brief historical introduction to the hosting-capacity approach is given, followed by a discussion of its application in distributed systems.
Abstract: After a brief historical introduction to the hosting-capacity approach, the hosting capacity is presented in this paper as a tool for distribution-system planning under uncertainty. This tool is il ...

116 citations

Journal ArticleDOI
TL;DR: In this paper, the impact of high PV penetration on the stability and reliability of power systems is comprehensively assessed and the existing solutions to the PV integration challenges and suggesting the way forward.

116 citations

Journal ArticleDOI
TL;DR: A comprehensive review of recent publications and trend of research activities regarding methods of representing uncertain variables and stochastic assessment techniques for power system quality analysis is provided.
Abstract: Many countries have experienced a surge in the level of the penetration of solar PV systems in the last decade. A huge portion of the newly deployed PV systems are connected to low voltage Grid. High Penetration of PVs at this level could potentially disrupt the normal operation of distribution network. A major concern is the impact of these units on power quality indices. Namely, photovoltaic panels could increase the level of voltage and current unbalance, deteriorate harmonic distortion and cause the voltage rise. These concerns may prohibit higher pentation levels of PVs. Thus, proper assessment techniques are vital for network operators for the planning and decision-making process. On the other hand, many characteristics of PV system are inherently uncertain. These uncertainties should be properly modeled in assessment framework. The main effort of research communities is to propose new methodologies that could model the uncertainty of solar power generation and stochastic assessment methods that could accurately estimate the state of the operation of the network with different levels of penetration of solar photovoltaics. This paper provides a comprehensive review of recent publications and trend of research activities regarding methods of representing uncertain variables and stochastic assessment techniques for power system quality analysis.

100 citations