Martin Hannig

Dr.-Ing. Martin Hannig

+49 6151 16-20442
+49 6151 16-20434

Fraunhoferstr. 4
64283 Darmstadt

Office: S3|21 404

Main field of Research

Optimisation of LPS attachment devices

Bachelor and Master Theses

Offers:

Under developement:

  • Masterthesis: tba
    Assigned to: Frederik Köhler

Accomplished:

  • Student research project: tba
    Assigned to: Karsten Selt
  • Bachelorthesis: tba
    Assigned to: Marvin Gössel
  • Masterthesis: tba
    Assigned to: Stephan Altenhein
  • Bachelorthesis: tba
    Assigned to: Viet Anh Nguyen
  • Student research project: tba
    Assigned to: Alexander Schork
  • Bachelorthesis: tba
    Assigned to: Dennis Dormann
  • Bachelorthesis: tba
    Assigned to: Christian Specht
  • Bachelorthesis: Design and implementation of over voltage protection and signal conditioning for two sensors used in a lightning measuring device
    Assigned to: Henrik Menne
  • Bachelorthesis: Developement of an uninterruptable power supply for a self-sustaining lightning measurment device
    Assigned to: Andreas Schütz
  • Masterthesis: Study on the Contribution of Tolerances on the Dielectric Design of GIS
    Assigned to: Anastasia Balasopoulou
  • Masterthesis: Fundamental investigations on application of unconventional sensors concenrning partial discharge measurement gas insulated switchgear in medium voltage
    Assigned to: Jan Prochaska
  • Bachelorthesis: Development of a screened rogowski coil for lightning current measurement
    Assigned to: Rashid Hussain
  • Bachelorthesis: Feasibility study of creating an exponential rising impulse voltage, based on nonlinear components, to simulate the real field strength, under the influence of a stepped leader
    Assigned to: Tim Plößer
  • Bachelorthesis: Development of an inductive, ferrite core based, measuring device for high frequency predischarge detection, under the influence of a stepped leader
    Assigned to: Tobias Rommel

Publications:

A. Kern, R. Brocke, V. Raab, M. Hannig, M. Rock, O. Beierl, W. Zischank
Detailed Calculation of Interception Efficiencies for Air-Termination Systems using the Dynamic Electro-Geometrical Model – Practical Applications
ICLP 2016, September 25. – 30. 2014, Estoril, Portugal

R.
Brocke, M. Hannig, L. Herrmann, V. Raab
Graphische Analyse der Einfangwahrscheinlichkeit von Fangeinrichtungen mit Hilfe des DEGM
VDE/ABB-BST 2015, Oktober 22. – 23. 2015, Ulm, Deutschland

M. Hannig, V. Hinrichsen, R. Hannig, R. Brocke
An analytical consideration on the striking probability and the total amount of strikes to simple structures according to standardized regulations
ICLP 2014, Oktober 13. – 17. 2014, Shanghai, China

M. Hannig, V. Hinrichsen, R. Brocke
Progress on the development of a measuring instrumentation for detection of pre-discharges on a lightning rod under the influence of a negative downward leader
ICLP 2014, Oktober 13. – 17. 2014, Shanghai, China

M. Hannig, V. Hinrichsen, R. Brocke
Entwicklung einer Messeinrichtung zur Erfassung von kleinsten Vorentladungen an einer Blitzfangstange unter Einfluss eines negativen Leitblitzes
VDE/ABB-BST 2013, Oktober 24. – 25. 2013, Ulm, Deutschland, ISBN 978-3-8007-3540-2

U. Broniecki, C. Balkon, M. Hannig, W. Kalkner, W. Koltunowicz, A. Obralic, R. Plath
Localization of Partial Discharges in Power Transformers by Combined Acoustic and Electric Measurements
ISH 2011, August 22nd – 26nd 2011, Hannover, Germany, ISBN 978-3-8007-3364-4Projektbeschreibung

Project Description

Background

Since its introduction lightning protection has changed in general only a little. A lightning rod is used to catch the lightning and conducts the lightning current to a grounding system. An effective and correct positioned rod is therefore inevitable. Exhaustive laboratory experiments and field measurements have defined the basic principles to gain an effective lightning protection. National (DIN EN 62305) and international (IEC 62305) standards describe the application of conventional lightning protection systems.
During the past decades advanced lightning rods and new lightning protection systems have been developed, which are rumored to have an advantage in contrast to the conventional lightning rods. These are highly controversial, in the lightning community and above all they are not considered in any standard (exception: french Standard NFC 17-102) and therefore are not part of an approved regulation. However, they are applied to structures, even in Germany. A scientific proof concerning this new technology under natural conditions doesn't exists. Theoretical calculations and simulations in high voltage laboratory support and vitiate the advantages derived from this technology.
There is an urgent need to examine the inception of connecting leaders under natural conditions, to better evaluate these new protection concepts.

Basics

Lightning is divided in flashes with and without ground contact. Approximately one third of all flashes connect to ground. These lightning flashes can be split up in negative and positive discharges, in terms of their charge transfer. Furthermore flashes are divided in downward and upward lightning, whereof the latter are only assumed on high structures. The majority of all lightning flashes, with a percentage of roughtly 90% is associated to negative downward lightnings.

Aim of the project

The aim of our own investigations is to give a better insight into the inception of connecting leaders when a negative downward leader approaches. This investigation is necessary to verify or to revise recent physical models. This may lead to a better evaluation for lightning rods in terms of their effectiveness and operation. The aim is to conduct investigations on connecting leaders, which are formed under the influence of an approaching negative downward leader. Investigations on how early and large the first pre-discharges are, in relation to the charge of the main return stroke should be conducted. The answers can give a hint on how the inception of the lightning leader takes place. The results may lead to an opportunity of verifying the ambitious simulation results and predictions made by Cooray and Becerra, which are supposed to be the best at the time.

Conceptional realization

A measuring instrumentation is developed, which is capable to measure electrical pre-discharges on a lightning rod and additionally is able to render at least the first return stroke. These values should be measured by floating current transformers. In case of the return stroke a self developed Rogowski coil is used. To measure pre-discharges a high frequency current transformer is used. Both transducers are applied on the rod. The data acquisition is done in direct vicinity. The measuring box is therefore very small and compact. It is powered with 230 V and supported with a rechargeable battery.

The measring box is also supported with SPDs and an EMC-protection. Because a negative downward leader is a rare event and the inability to increase the strike impact probability, this box is replicated about 60 times and installed to many different sites. It is assumed, that each year 3 strikes can be measured.

Publications

Gruppiere nach: Datum | Typ des Eintrags | Keine Gruppierung
Springe zu: 2017 | 2016 | 2015 | 2014 | 2013 | 2011
Anzahl der Einträge: 9.

2017

Hannig, M. ; Hinrichsen, V. ; Beierl, O. :
Die Fangvolumenmethode und ihre Abhängigkeit von den Feldintensivierungsfaktoren.
In: VDE/ABB-BST 2017, 12. - 13.10.2017, Aschaffenburg, Deutschland.
[Konferenz- oder Workshop-Beitrag], (2017)

Beierl, O. ; Brocke, R. ; Hannig, M. :
Effectiveness of low-impedance down-conductors.
In: XIV SIPDA, 02. - 06.10.2017, Natal, Barzil.
[Konferenz- oder Workshop-Beitrag], (2017)

Hannig, M. ; Hinrichsen, V. ; Brocke, R. :
Determination of the probability function of lightning peak currents on flat ground.
In: XIV SIPDA, 02. - 06.10.2017, Natal, Brazil.
[Konferenz- oder Workshop-Beitrag], (2017)

2016

Kern, A. ; Brocke, R. ; Raab, V. ; Hannig, M. ; Rock, M. ; Beierl, O. ; Zischank, W. :
Detailed Calculation of Interception Efficiencies for Air-Termination Systems using the Dynamic Electro-Geometrical Model – Practical Applications.
In: ICLP 2016, 25. - 30.09.2016, Estoril, Portugal.
[Konferenz- oder Workshop-Beitrag], (2016)

2015

Brocke, R. ; Hannig, M. ; Herrmann, L. ; Raab, V. :
Graphische Analyse der Einfangwahrscheinlichkeit von Fangeinrichtungen mit Hilfe des DEGM.
In: VDE/ABB-BST 2015, 22. bis 23. Oktober 2015, Ulm, Deutschland.
[Konferenz- oder Workshop-Beitrag], (2015)

2014

Hannig, M. ; Hinrichsen, V. ; Hannig, R. ; Brocke, R. :
An analytical consideration on the striking probability and the total amount of strikes to simple structures according to standardized regulations.
In: ICLP 2014, 13.-17. Oktober 2014, Shangai, China.
[Konferenz- oder Workshop-Beitrag], (2014)

Hannig, M. ; Hinrichsen, V. ; Brocke, R. :
Progress on the development of a measuring instrumentation for detection of pre-discharges on a lightning rod under the influence of a negative downward leader.
In: ICLP 2014, 13.-17. Oktober 2014, Shangai, China.
[Konferenz- oder Workshop-Beitrag], (2014)

2013

Hannig, M. ; Hinrichsen, V. ; Brocke, R. :
Entwicklung einer Messeinrichtung zur Erfassung von kleinsten Vorentladungen an einer Blitzfangstange unter Einfluss eines negativen Leitblitzes.
In: VDE/ABB-BST 2013, 24.-25. Oktober 2013, Ulm, Deutschland.
[Konferenz- oder Workshop-Beitrag], (2013)

2011

Broniecki, U. ; Balkon, C. ; Hannig, M. ; Kalkner, W. ; Koltunowicz, W. ; Obralic, A. ; Plath, R. :
Localization of Partial Discharges in Power Transformers by Combined Acoustic and Electric Measurements.
In: ISH 2011, 22.08. - 26.08.2011, Hannover, Germany.
[Konferenz- oder Workshop-Beitrag], (2011)

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