@misc{10403, abstract = {{Due to the increasingly widespread use of efficient power electronics, DC grids today offer more and more advantages over AC grids. Based on comparative measurements, this paper shows that an efficiency increase through DC can be achieved even with little recuperation potential of an existing system. In addition, other advantages such as peak load reduction by -43 %, power quality improvement and reliability are documented.}}, author = {{Warkentin, Slavi and Puls, Simon and Riethmüller, Simon and Blank, Frederic and Borcherding, Holger}}, booktitle = {{PCIM Europe 2023 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management}}, isbn = {{978-3-8007-6091-6}}, location = {{Nürnberg}}, pages = {{PP167}}, publisher = {{VDE Verlag}}, title = {{{Measured Advantages of a Production Plant with DC Grid in terms of Energy Efficiency, Peak Power Reduction and Power Quality}}}, doi = {{10.30420/566091273}}, year = {{2023}}, } @misc{10405, abstract = {{Due to the increasingly widespread use of efficient power electronics, DC grids today offer more and more advantages over AC grids. In the field of energy supply, the use of DC technology is also growing and is state of the art in offshore, high-voltage, vehicle and data center applications. The spread of industrial open DC grids is currently starting and is completely different due to the requirements. The DC links of each device are connected directly and the capacitors of individual devices shall not be overloaded. Especially not by ripple currents from other devices. The paper describes the easy use of a measuring box which evaluates and optically displays the load of electrolytic capacitors. No further measuring equipment is required. The simple, temporary integration into a grid makes it easy to check whether capacitors of individual devices are overloaded, and their lifetime is limited.}}, author = {{Koch, Jan-Niklas and Puls, Simon and Borcherding, Holger and Warkentin, Slavi}}, booktitle = {{ größer Mesago Messe Frankfurt GmbH, Stuttgart (Hrsg.) PCIM Europe 2023 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management}}, location = {{Nürnberg}}, pages = {{PP060}}, publisher = {{VDE Verlag}}, title = {{{Conceptual Design of a Portable Measuring Box for Monitoring Ripple Currents affecting the Lifetime of Electrolytic Capacitors in Industrial Open DC Grids}}}, doi = {{10.30420/566091166}}, year = {{2023}}, } @misc{10404, abstract = {{Today DC offers far-reaching advantages over AC. Therefore, many devices have been equipped with an internal DC link for many years. In the field of energy supply, the use of DC technology is also growing and is state of the art in offshore, high-voltage, vehicle and data center applications. The spread of industrial open DC grids is currently starting and is completely different due to the requirements: The industrial DC grid is highly dynamic. This means that power varies greatly over time and therefore there is a large amount of capacitance with little damping. The paper describes possibilities of reduction and changing of DC link capacitors from devices and the resulting influences on the lifetime for both electrolytic and film capacitors.}}, author = {{Puls, Simon and Koch, Jan-Niklas and Warkentin, Slavi and Borcherding, Holger}}, booktitle = {{NEIS 2022 Conference on Sustainable Energy Supply and Energy Storage Systems}}, editor = {{Schlz, Detlef}}, location = {{Hamburg}}, pages = {{145--152}}, publisher = {{VDE Verlag}}, title = {{{Influence on Capacitor Lifetime due to Reduction of Link Capacitance for Devices operating on an Open Industrial DC grid}}}, year = {{2022}}, } @misc{8433, abstract = {{Today DC offers far-reaching advantages over AC. Therefore, many devices have been equipped with an internal DC link for many years. In the field of energy supply, the use of DC technology is also growing and is state of the art in offshore, high-voltage, vehicle and data center applications. The spread of industrial open DC grids is currently starting and is completely different due to the requirements: The industrial DC grid is highly dynamic. This means that power varies greatly over time and therefore there is a large amount of capacitance with little damping. The paper describes possibilities of outsourcing DC link capacitors from devices and the resulting influences on the lifetime.}}, author = {{Puls, Simon and Koch, Jan-Niklas and Warkentin, Slavi and Borcherding, Holger}}, booktitle = {{PCIM Europe 2022 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management Proceedings}}, location = {{Nürnberg}}, publisher = {{VDE Verlag}}, title = {{{Influence of Link Capacitor Outsourcing and Reduction of Capacitors in DC fed Drive Inverters}}}, doi = {{10.30420/565822046}}, year = {{2022}}, } @misc{8436, abstract = {{Today DC offers far-reaching advantages over AC. Therefore, many devices have been equipped with an internal DC link for years. In the field of energy supply, the use of DC technology is also growing and is state of the art e.g. in offshore, high-voltage, automotive and data center applications. The spread of industrial open DC grids is currently starting and is completely different due to the requirements: The DC grid itself and energy flows in an industrial environment are highly dynamic and bidirectional. Due to the low impedance electrical connection of the DC links of many devices, stored energies in fault cases as well as ripple currents during operation place particular requirements on the devices.}}, author = {{Puls, Simon and Koch, Jan-Niklas and Ehlich, Martin and Borcherding, Holger}}, booktitle = {{EPE Proceeding 2022}}, isbn = {{978-9-0758-1539-9}}, issn = {{2325-0313}}, keywords = {{Industries, Semiconductor device measurement, Capacitors, Europe, High-voltage techniques, Inverters, Circuit faults}}, location = {{Hannover}}, publisher = {{IEEE}}, title = {{{Particular Requirements on Drive Inverters for Safe and Robust Operation on an Open Industrial DC Grid}}}, year = {{2022}}, } @misc{8417, abstract = {{Today DC offers far-reaching advantages over AC. Therefore, many devices have been equipped with an internal DC link for many years. In the field of energy supply, the use of DC technology is also growing and is state of the art in offshore, high-voltage, vehicle, data center applications. The spread of industrial open DC grids is currently starting and is completely different due to the requirements: The DC grid is highly dynamic. This means that the oscillation behavior must be investigated. The paper describes the characteristics and the limits of stability for an open industrial DC grid.}}, author = {{Puls, Simon and Warkentin, Slavi and Austermann, Johann and Borcherding, Holger}}, booktitle = {{PCIM Europe digital days 2021; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management}}, location = {{Online}}, pages = {{87}}, publisher = {{VDE Verlag}}, title = {{{Characteristics and Possible Resonant Oscillations in an Open Industrial DC grid}}}, year = {{2021}}, } @misc{8430, abstract = {{This article highlights the special electrical properties of an industrial DC grid and compares it with other typical DC grids. In this article, the extent of transient overvoltages is presented, which must be assumed to be caused by grid faults and switching operations. Basic measures for the protection of devices are listed and evaluated. The article clarifies that basic protection is necessary for the reliable operation of devices in industrial DC grids, but is easy to implement.}}, author = {{Borcherding, Holger and Austermann, Johann and Puls, Simon}}, booktitle = {{2021 22nd IEEE International Conference on Industrial Technology (ICIT)}}, isbn = {{978-1-7281-5730-6}}, issn = {{2643-2978}}, keywords = {{drive inverters, DC grid, overvoltage protection, DC grid faults}}, location = {{Valencia, Spain; Online}}, pages = {{625--630}}, publisher = {{IEEE}}, title = {{{Potential Hazards of Transient Overvoltages in an Industrial DC Grid and Basic Protective Measures}}}, doi = {{10.1109/ICIT46573.2021.9453597}}, year = {{2021}}, } @misc{4918, abstract = {{An open industrial DC grid has a lot of advantages. Also new challenges arise by coupling several DC link capacitors of inverters. This paper presents an approach and measurements of an active device protection to withstand possible faults that can occur in the DC grid. In particular, robustness in the event of faults plays a key role.}}, author = {{Puls, Simon and Obernolte, Urs and Borcherding, Holger and Ehlich, Martin}}, booktitle = {{2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe VIRTUAL)}}, isbn = {{978-1-7281-9807-1}}, issn = {{2325-0313}}, keywords = {{DC grid, fault handling strategy, DC-power supply, active protection, drive inverters}}, location = {{Lyon, France}}, publisher = {{IEEE}}, title = {{{Approach of an Active Device Protection for Drive Inverters against Short Circuit Faults in an Open Industrial DC Grid}}}, doi = {{10.23919/EPE20ECCEEurope43536.2020.9215949}}, year = {{2020}}, }