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Photovoltaics
2007	PV-watchdog: Effektives Monitoring van PV-Modulen H. Oldenkamp, B. Litzenburger, L. Podlowski Paper presented at the OTTI PV-symposium, February 2007, Staffelstein, Germany
2006	Projectrapportage Haalbaarheidsstudie spanningsvermenigvuldiger, 30 December 2006 (confidential) Report with the results of the study into the feasiblity of the voltage multiplier, compiled for the Netherlands agency for energy and the environment (SenterNovem) to complete the feasibility project Maximum power point tracking performance under partially shaded PV array conditions Roland Bruendlinger, Benoît Bletterie, Matthias Milde, Henk Oldenkamp Paper presented at the 21st EPSEC, September 2006, Berlin, Germany
2005	Haalbaarheidsstudie visuele indicator voor functioneren pv-modules, 1 november 2005 Report with the results of the study into the feasiblity of the PV-watchdog, compiled for the Netherlands agency for energy and the environment (SenterNovem) to complete the feasibility project PV-wirefree: results of proof-of-principle project and final system design Paper presented at the 20th EPSEC, 6-10 June 2005, Barcelona, Spain
2004	PV-wirefree versus conventional PV-systems: detailed analysis of difference in energy yield between series and parallel connected PV-modules Paper presented at the 19th EPSEC, 7-11 June 2004, Paris, France
2003	PV-wirefree: bringing PV-systems back to their essentials, paper presented at the 3rd World Conference on Photovoltaic Energy Conversion, 11-18 May 2003, Osaka, Japan
2002	Projectrapportage Haalbaarheidsstudie PV-wireless, public version, November 2002 Report with the results of the study into the feasiblity of PV-wireless, compiled for the Netherlands agency for energy and the environment (SenterNovem) to complete the feasibility project PV-wirefree: redesigning and innovating grid-connected PV-systems Paper presented at the PV for Europe conference, 2-11 October 2002, Rome, Italy Detailed analysis of currents in PV-shunts, Henk Oldenkamp, 18 February 2002
1998	Next generation of AC module inverters H. Oldenkamp, I.J. de Jong Paper presented at the 2nd World Conference and Exhibition on Photovoltaic Solar Energy Conversion, Vienna, 6-10 July 1998 AC modules: past, present and future H. Oldenkamp, I.J. de Jong Paper presented at the workshop Installing the future, 22-23 January 1998, Hatfield, U.K.
1997	Nieuwe technologie zorgt voor prijsdoorbraak van OK4-100 mini inverter voor wisselstroompanelen H. Oldenkamp, I.J. de Jong, C.W.A. Baltus, S.A.M. Verhoeven Bijdrage aan de Nederlandse Duurzame Energie Conferentie, 17-18 november 1997, Ede Advanced high frequency switching technology of OK4 AC modules inverters break the 1 US$/Watt price barrier H. Oldenkamp, I.J. de Jong, C.W.A. Baltus, S.A.M. Verhoeven Paper presented at the 14th Photovoltaic Solar Energy Conference, Barcelona, Spain, 30 June - 4 July 1997 Recent test results of AC module inverters C.W.G. Verhoeven, C.F.A. Frumau, E. de Held and W.C. Sinke Paper presented at the 14th Photovoltaic Solar Energy Conference, Barcelona, Spain, 30 June - 4 July 1997
1996	Reliability and accelerated life tests of the AC module mounted OKE4 inverter H. Oldenkamp, I.J. de Jong, C.W.A. Baltus, S.A.M. Verhoeven, S. Elstgeest Paper presented at the 25th IEEE Photovoltaic Specialists Conference, Hyatt Regency Crystal City, Washington D.C., May 13-17, 1996 Application note OKE/9601 OK485 interface. Internal NKF/OKE report, August 17, 1996 Application note OKE/9602 OK485 interface. Internal NKF/OKE report, August 15, 1996
1995	Comptetitive implementation of multi-kilowatts grid connected PV-systems with OKE4 AC modules H. Oldenkamp, S.W.H. de Haan, I.J. de Jong, C.W.A. Baltus, C.F.A. Frumau, S.A.M. Verhoeven Paper presented at the 13th European Photovoltaic Solar Energy Conference, Nice, France, 23-27 October 1995
1994	Test results of a 130W AC module; a modular solar ac power station S.W.H. de Haan, H. Oldenkamp, E.J. Wildenbeest Paper presented at the 1994 IEEE First World Conference on Photovoltaic Energy Conversion, Waikoloa, Hawaii, December 5-9, 1994 Development of a 100W resonant inverter for ac modules S.W.H. de Haan, H. Oldenkamp, C.F.A. Frumau, W. Bonin Paper presented at 12th European Photovoltaic Solar Energy Conference, Amsterdam, The Netherlands, 11-15 April 1994

Wind energy

1990

In total 76 measuring reports and 19 technical notes were produced related to the project Performance testing of several water pumping windmills at the Almere test site.
Verslag van metingen aan CWD's waterpompende windmolens op het Almere testveld tijdens de storm van 25 januari 1990
[Report on field measurements on CWD's water pumping windmills executed during the storm of the 25th of January 1990]. March 1990
Eindrapportage van het CWD-projekt Rotor- en kruimetingen aan CWD's waterpompende windmolens
[Final report of the CWD-project on Rotor and yaw measurements carried out on CWD's water pumping windmills, in Dutch], January 1990

1988

Simulation of the dynamical behaviour of a water pumping windmill in the hysteresis region.
Eindhoven University of Technology, Faculty of Technical Physics, Wind Energy Group, Internal report R924D, June 1988.
Quantitive analysis of the hysteresis effect of a water pumping windmill.
Paper presented at the CEC-meeting, Joint test site project, European Wind Turbine Standard on Performance Determination, June 1988, Petten, The Netherlands and at the 8th International Meeting of Test Stations for Wind Turbines, October 1988, Göteborg, Sweden.

1987

Field measurements on the CWD 5001 performed in the period 85.05.18 to 85.12.18.
Eindhoven University of Technology, Faculty of Technical Physics, Wind Energy Group, Internal report R834D, January 1987.

1986

Laboratory measurements of a pump with a floating valve (co-author with F.Verheij).
Eindhoven University of Technology, Faculty of Technical Physics, Wind Energy Group, Internal report R827D, December 1986.
Field testing of water pumping windmills by CWD
J. van Meel, H. Oldenkamp, P. Smulders, A. van der Nat and E.H. Lysen)
Paper presented at the EWEC 1986, 7-9 October 1986, Rome, Italy
Pump research by CWD: the influence of starting torque of single acting piston pumps on water pumping windmills
H. Cleijne, H. Oldenkamp, P. Smulders and F. Verheij
Paper presented at the EWEC 1986, 7-9 October 1986, Rome, Italy

1985

Field measurements on the CWD 2000 between 85.03.28 and 85.08.10 (co-author with N.Pieterse).
Eindhoven University of Technology, Faculty of Technical Physics, Wind Energy Group, Internal report R765D, November 1985
Enige resultaten van CWD testvelden en het belang ervan voor de economische haalbaarheid
[Some results of CWD's test fields and the importance for economic feasibility, in Dutch]
J. van Meel, H. Oldenkamp, A. van der Nat, N. Pieterse, R. Schermerhorn and J. Horijon
Eindhoven University of Technology, Faculty of Technical Physics, Wind Energy Group, Internal report R709D, February 1985
Field measurements on the CWD 2000 and the WEU-I-3 performed in the period 84.11.27 until 85.01.04
Eindhoven University of Technology, Faculty of Technical Physics, Wind Energy Group, Internal report R709D, February 1985
Field measurements on the CWD 2000 and the WEU-I-3 performed in the period 84.11.13 until 84.11.25
Eindhoven University of Technology, Faculty of Technical Physics, Wind Energy Group, Internal report R696D, January 1985

1984

Manual for a windmill measuring system, based on an Apple II micro computer
Eindhoven University of Technology, Faculty of Technical Physics, Wind Energy Group, Internal report R647D, March 1984
Field performance monitoring system for water pumping windmills (co-author with J.van Meel)
Wind Engineering, vol.8, no.4, pp. 253-270

Telecommunication

1991

Detailed description of RIN measurement, Technical Note NKF Electronics Group, 22nd of April 1991

1989

Final report of activities on the training on the 12-channel two-band FDM carrier system, 23rd of November 1989.
Course on the Transmission equipment and system, the 12-channel two-band FDM carrier system for VF-cables (co-author with I.de Jong)
Used for the course on the Iraq Expressway Number 1, Roadside Telephone System in Iraq, September 1989
Final report on noise measurements. Kenya Railways Telecommuniation Project, Nairobi-Mombasa, 1st of May 1989

Wind energy
1990	In total 76 measuring reports and 19 technical notes were produced related to the project Performance testing of several water pumping windmills at the Almere test site. Verslag van metingen aan CWD's waterpompende windmolens op het Almere testveld tijdens de storm van 25 januari 1990 [Report on field measurements on CWD's water pumping windmills executed during the storm of the 25th of January 1990]. March 1990 Eindrapportage van het CWD-projekt Rotor- en kruimetingen aan CWD's waterpompende windmolens [Final report of the CWD-project on Rotor and yaw measurements carried out on CWD's water pumping windmills, in Dutch], January 1990
1988	Simulation of the dynamical behaviour of a water pumping windmill in the hysteresis region. Eindhoven University of Technology, Faculty of Technical Physics, Wind Energy Group, Internal report R924D, June 1988. Quantitive analysis of the hysteresis effect of a water pumping windmill. Paper presented at the CEC-meeting, Joint test site project, European Wind Turbine Standard on Performance Determination, June 1988, Petten, The Netherlands and at the 8th International Meeting of Test Stations for Wind Turbines, October 1988, Göteborg, Sweden.
1987	Field measurements on the CWD 5001 performed in the period 85.05.18 to 85.12.18. Eindhoven University of Technology, Faculty of Technical Physics, Wind Energy Group, Internal report R834D, January 1987.
1986	Laboratory measurements of a pump with a floating valve (co-author with F.Verheij). Eindhoven University of Technology, Faculty of Technical Physics, Wind Energy Group, Internal report R827D, December 1986. Field testing of water pumping windmills by CWD J. van Meel, H. Oldenkamp, P. Smulders, A. van der Nat and E.H. Lysen) Paper presented at the EWEC 1986, 7-9 October 1986, Rome, Italy Pump research by CWD: the influence of starting torque of single acting piston pumps on water pumping windmills H. Cleijne, H. Oldenkamp, P. Smulders and F. Verheij Paper presented at the EWEC 1986, 7-9 October 1986, Rome, Italy
1985	Field measurements on the CWD 2000 between 85.03.28 and 85.08.10 (co-author with N.Pieterse). Eindhoven University of Technology, Faculty of Technical Physics, Wind Energy Group, Internal report R765D, November 1985 Enige resultaten van CWD testvelden en het belang ervan voor de economische haalbaarheid [Some results of CWD's test fields and the importance for economic feasibility, in Dutch] J. van Meel, H. Oldenkamp, A. van der Nat, N. Pieterse, R. Schermerhorn and J. Horijon Eindhoven University of Technology, Faculty of Technical Physics, Wind Energy Group, Internal report R709D, February 1985 Field measurements on the CWD 2000 and the WEU-I-3 performed in the period 84.11.27 until 85.01.04 Eindhoven University of Technology, Faculty of Technical Physics, Wind Energy Group, Internal report R709D, February 1985 Field measurements on the CWD 2000 and the WEU-I-3 performed in the period 84.11.13 until 84.11.25 Eindhoven University of Technology, Faculty of Technical Physics, Wind Energy Group, Internal report R696D, January 1985
1984	Manual for a windmill measuring system, based on an Apple II micro computer Eindhoven University of Technology, Faculty of Technical Physics, Wind Energy Group, Internal report R647D, March 1984 Field performance monitoring system for water pumping windmills (co-author with J.van Meel) Wind Engineering, vol.8, no.4, pp. 253-270

Telecommunication
1991	Detailed description of RIN measurement, Technical Note NKF Electronics Group, 22nd of April 1991
1989	Final report of activities on the training on the 12-channel two-band FDM carrier system, 23rd of November 1989. Course on the Transmission equipment and system, the 12-channel two-band FDM carrier system for VF-cables (co-author with I.de Jong) Used for the course on the Iraq Expressway Number 1, Roadside Telephone System in Iraq, September 1989 Final report on noise measurements. Kenya Railways Telecommuniation Project, Nairobi-Mombasa, 1st of May 1989