Winter, P., Cajigal-Núñez, J. M., Wrede, H.
Sub- and Super-Synchronous Characteristic of a Transformer Connected STATCOM using Grid-Forming Control Method
NEIS2019; Conference on Sustainable Energy Supply and Energy Storage Systems, Hamburg, Germany, 2019, pp.1-6
Wrede, H., Cajigal-Núñez, J. M., Winter, P.
Dynamisches Verhalten eines spannungseinprägend geregelten STATCOM
Energiewende in der Stromversorgung - Systemstabilität und Systemsicherheit - 13. ETG/GMA-Tagung „Netzregelung und Systemführung“, 18./19.09.2019 Berlin, Deutschland
Winter, P., Cajigal-Núñez, J. M.,Wrede, H., Schnepp, J.
New Topology and Functionalities of a Hybrid Transformer for Flexible Operation of Distribution and Transmission Systems
2019; 21th European Conference on Power Electronics and Applications (EPE'19 ECCE Europe), Genova, 2019, pp.1-10
Cajigal-Núñez, J. M., Winter, P., Wrede, H.
Modern Control Method of MMC STATCOM for Future Power Grids
2019; 21th European Conference on Power Electronics and Applications (EPE'19 ECCE Europe), Genova, 2019, pp.1-6
Winter, P., Wrede, H.
Impact of Power Converter Control on Transient Stability of Power Systems
NEIS2018; Conference on Sustainable Energy Supply and Energy Storage Systems, Hamburg,Germany, 2018, pp.1-6
Wrede, H.; Winter, P.
Verhalten von Umrichtern am Netz
12. ETG/GMA-Fachtagung „Netzregelung und Systemführung“, Berlin, 26-27 Sept. 2017
Erlich, I., Fischer, W., Shewarega, F., Wrede, H.
Low frequency AC for offshore wind power transmission - prospects and challenges
11th IET International Conference onAC and DC Power Transmission, Proceedings, 10-12 Feb. 2015
Heising, C., Bartelt, R., Wrede, H.
Neue Systemeigenschaften in Stromrichter dominierten Netzen
VGB PowerTech; 12|2014, S. 46-49
Barnes, A., Martinelli, V., Kam, A., Simonelli, J., Wrede, H.
Optimal Placement of an Inline Voltage Regulator on a Secondary Distribution System
CIRED Workshop 2014, Rome, 11-12 June 2014
Barnes, A., Martinelli, V., Kam, A., Simonelli, J., Wrede, H.
Load-Flow Modeling of a Three-Phase Local Voltage Regulator
CIRED Workshop 2014, Rome, 11-12 June 2014
Wrede, H.
Berücksichtigung von Netzstabilitätsaspekten bei der Planung von Offshore-Windparks
VGB PowerTech; 10|2012, S. 30-33
Maibach, P., Umbricht, N., Wrede, H.
Leistungsstärkste Bahnstromumrichteranlage in Datteln
eb – Elektrische Bahnen; 109 (2011) Heft 6
Bartelt, R., Wrede, H., Heising, C., Oettmeier, M., Staudt, V., Steimel, A.
Time-Domain-Based Stability Assessment of Offshore Windparks with AC-Connection Using the Simulation Approach SCOPE
EPE Joint Wind Energy and T&D Chapter Seminar, Trondheim, Norway, Proceedings, 9-11 May 2011
Wrede, H., Umbricht, N.
Development of a 413 MW Railway Power Supply Converter
IECON 2009 [Industrial Electronics Society, IEEE Porto 2009 35th Annual Conference], Proceedings, 3-5 Nov. 2009, Page(s):3623 – 3628
Wrede, H., Umbricht, N.
Bahnstromumrichter Datteln – Planung und Bau der weltweit größten Bahnstromumrichteranlage
ETG Fachbericht 118, VDE VERLAG GMBH, Berlin - Offenbach, Vorträge des Inter-nationalen ETG-Kongresses vom 27 . bis 28. Oktober 2009 in Düsseldorf, Page(s):445 – 450
Feltes, C., Wrede, H., Koch, F., Erlich, I.
Enhanced Fault Ride-Through Method for Wind Farms Connected to the Grid through VSC-Based HVDC Transmission
IEEE Transactions on Power Systems, Volume 24, Issue 3, 2009 Page(s):1537 – 1546
Erlich, I., Wrede, H., Feltes, C.
Dynamic Behavior of DFIG-Based Wind Turbines during Grid Faults
IEEJ Transactions on Industry Applications, Volume 128, Issue 4, 2008 Page(s):396 – 401
Feltes, C., Wrede, H., Koch, F., Erlich, I.
Fault Ride-Through of DFIG-Based Wind Farms connected to the Grid through VSC-based HVDC Link
Power Systems Computation Conference – Glasgow, 2008, 16th PSCC, 14-18 July 2008
Wrede, H., E.ON Engineering GmbH
Aktive Sternpunktbehandlung
Deutsche Patentanmeldung, 10 2008 017 927.2, 7. April 2008
Engelhardt, S., Wrede, H., Woodward SEG GmbH & Co. KG
Verfahren und Regeleinheit zur Kurzschlußstromreduktion bei einer doppeltgespeisten Asynchronmaschine
Deutsche Patentanmeldung, 10 2007 042 246.8, 6. September 2007
Engelhardt, S.,Geniusz, A., Wrede, H., Woodward SEG GmbH & Co. KG
Verfahren und Vorrichtung zur Kompensation von Schwingungseffekten bei Netzunsymmetrie bei einer doppeltgespeisten Asynchronmaschine
Deutsche Patentanmeldung, 10 2007 039 697.1, 22. August 2007
Erlich, I., Kretschmann, J., Fortmann, J., Müller-Engelhardt, S., Wrede, H.
Modeling of Wind Turbines Based on Doubly-Fed Induction Generators for Power System Stability Studies
IEEE Transactions on Power Systems, Volume 22, Issue 3, Aug. 2007 Page(s):909 – 919
Ehlert, D., Wrede, H.
Wind Turbines with Doubly-Fed Induction Generator Systems with Improved Performance due to Grid Requirements
Power Engineering Society General Meeting, 2007, IEEE, 24-28 June 2007 Page(s):1 – 7
Erlich, I., Wrede, H., Feltes, C.
Dynamic Behavior of DFIG-Based Wind Turbines during Grid Faults
Power Conversion Conference – Nagoya, 2007, PCC ´07, 2-5 April 2007 Page(s):1195 – 1200
Kretschmann, J., Wrede, H., Müller-Engelhardt, S., Erlich, I.
Enhanced Reduced Order Model of Wind Turbines with DFIG for Power System Stability Studies
1st International Power and Energy Conference PECon 2006, Kuala Lumpur, Malaysia, 28./29. Nov. 2006
Müller-Engelhardt, S., Kretschmann, J., Wrede, H.
Leistungsregelung von Windkraftanlagen mit doppelt-gespeister Asynchronmaschine bei Netzunsymmetrie
VDI/VDE-Tagung Elektrisch-mechanische Antriebsysteme, Böblingen 2006, 27./28. Sept. 2006
Wrede, H.
High Dynamic Control of a VSI in Grid Parallel Operation with Minimised Current Distortion even under Harsh Voltage Conditions
Power Electronics – Intelligent Motion – Power Quality, Proceedings of the 27th International PCIM Conference, Nuremberg 2006, 30 May-1 June 2006
Wrede, H., SEG GmbH & Co. KG
Stromregelung eines netzparallelen Spannungsumrichters
European patent application EP 05007036.6, 31 March 2005
Staudt, V., Wrede, H.
Konzept eines mobilen elektronischen 110-kV/ Mittelspannungs-Leistungstransformators
ETG Fachbericht 98 – Technische Innovationen in Verteilungsnetzen, VDE VERLAG GMBH, Berlin und Offenbach 2005, Vorträge der ETG Fachtagung, Würzburg, 1-2 March 2005 Page(s):59 – 66
Wrede, H.
Beiträge zur Erhöhung von Versorgungssicherheit und Spannungsqualität in der Übertragung und Verteilung elektrischer Energie durch leistungselektronische Betriebsmittel
Dissertation, ISBN 3-8322-2608-7, Ruhr-University Bochum 2004
Depenbrock, M., Staudt, V., Wrede, H.
Concerning "Instantaneous power compensation in three-phase systems by using p-q-r theory"
IEEE Transactions on Power Electronics, Volume 19, Issue 4, July 2004 Page(s):1151 – 1152
Wrede, H., Staudt, V.
Optimized feed forward control of a STATCOM with limited energy storage capability for flicker compensation
Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual Meeting, Volume 4, 20-25 June 2004 Page(s):3157 - 3163 Vol.4
Staudt, V., Wrede, H.
Compensation strategies for four-conductor systems
Power Definitions and Measurements under Non-Sinusoidal Conditions, Milano 2003, Proceedings of the 6th International Workshop, 13-15 Oct. 2003 Page(s):139 – 146
Wrede, H., Staudt, V., Steimel, A.
A Soft-Switched Dual Active Bridge 3DC-to-1DC Converter employed in a High-Voltage Electronic Power Transformer.
10th European Conference on Power Electronics and Applications, EPE Toulouse 2003, Proceedings, CD-ROM ISBN: 90-75815-07-7, 2-4 Sept. 2003
Depenbrock, M., Staudt, V., Wrede, H.
A theoretical investigation of original and modified instantaneous power theory applied to four-wire systems
IEEE Transactions on Industry Applications, Volume 39, Issue 4, July-Aug. 2003 Page(s):1160 – 1168
Wrede, H., Staudt, V., Steimel, A.
Design of an electronic power transformer
IECON 02 [Industrial Electronics Society, IEEE Sevilla 2002 28th Annual Conference], Volume 2, 5-8 Nov. 2002 Page(s):1380 - 1385 vol.2
Depenbrock, M., Staudt, V., Wrede, H.
A concise assessment of original and modified instantaneous power theory applied to four-wire systems
Proceedings of the Power Conversion Conference, 2002. PCC Osaka 2002. Volume 1, 2-5 April 2002 Page(s):60 - 67 vol.1
Staudt, V., Wrede, H.
On the Compensation of Non-active Current Components of Three-phase Loads with Quickly Changing Unsymmetry
European Transactions on Electrical Power, ETEP, Volume 11, No. 5, Sept./Oct. 2001, Page(s): 301 - 307
