Sebastian KrahmerTechnische Universität Dresden | TUD · Institute of Electrical Power Systems and High Voltage Engineering
Sebastian Krahmer
Dipl.-Ing.
About
24
Publications
3,060
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30
Citations
Citations since 2017
Introduction
Make the energy transition happen - researcher and docent.
My scope of interest is the contribution of decentralized energy resources to ancillary services in the context of the complex energy transition. Therefore I am highly interested in the design of operational management concepts, both AC and DC. My actual research is about the assessment of the stability of decentralized power plant controls against the background of controller interactions.
https://orcid.org/0000-0002-3940-3398
Publications
Publications (24)
The rising percentage of inverter-based generation poses new challenges to the grid. Approaching a majorityshare of inverter-based generation, technical issues in gridoperation and the contribution to grid stability have to beanalysed. A measurement campaign in a wind farm has been carried out in order to investigate the performance of awind farm a...
Distributed voltage control using Q(U)-characteristics is a means to facilitate higher penetrations of decentralized generation. However, stability concerns interfere the wider adoption of this technology. Motivated by a research project on ancillary services in electrical subtransmission and distribution networks a verification of limits in grid c...
Distributed voltage control using Q(U)-characteristics is a means to facilitate higher penetrations of decentralized generation. However, stability concerns interfere the wider adoption of this technology. Based on a recent introduction of a robust stability criterion for assessment of droop-controlled inverters, this paper aims to improve the mode...
The National 5G Energy Hub is a research association between the TU Dresden and the RWTH Aachen as well as com-panies from the information technology sector. The project scope can be seen in the context of the digitalization of the energy sector. The key points are therefore sector coupling in the domain of thermal and electrical energy, wireless c...
As the amount of volatile, renewable energy sources in power distribution grids is increasing, the stability of the latter is a vital aspect for grid operators. Within the STABEEL project, the authors develop rules on how to parametrize the reactive power control of distributed energy resources to increase the performance while guaranteeing stabili...
Zusammenfassung
Die Stabilität eines elektrischen Energieübertragungssystems ist eine der wichtigsten Eigenschaften, die dessen Betreiber garantieren muss, insbesondere angesichts des wachsenden Anteils von dezentral eingespeisten, volatilen Energieträgern wie Solar und Wind am Gesamtmix. Aus diesem Grund werden im Rahmen des STABEEL -Projekts Meth...
Die fortschreitende Transformation des Elektroenergiesystems erfordert auch Anpassungen in den Netzwiederaufbaukonzepten der Netzbetreiber. Vor diesem Hintergrund bündelt der Übertragungsnetzbetreiber 50Hertz Transmission seine Anstrengungen mit wissenschaftlicher Unterstützung im internen Scientific Advisory Project Board (SAPB). Ein aktuelles For...
![Assessment parameters for supply interruption [3]](profile/Sebastian-Krahmer/publication/355244785/figure/tbl1/AS:1082884748247044@1635191251568/Assessment-parameters-for-supply-interruption-3_Q320.jpg)
Drastic events such as pandemics, earthquakes or other disasters threaten not only the immediate living conditions of people but also indirect circumstances such as energy supply, infrastructure and food production. To ensure that damage and failures in these areas do not lead to a disaster, special requirements are placed on this critical infrastr...
As the amount of volatile, renewable energy sources in power distribution grids is increasing, the stability of the latter is a vital aspect for grid operators. Within the STABEEL project, the authors develop rules on how to parametrize the reactive power control of distributed energy resources to increase the performance while guaranteeing stabili...
Zusammenfassung
Im Rahmen des Beitrags sollen das Potenzial der Blindleistungsbereitstellung und mögliche Regelungskonzepte im Kontext von Redispatch 2.0 dargestellt werden. Ein umfangreicher Feldtest zeigt das Zusammenspiel von Übertragungs- und Verteilnetzbetreibern bezüglich einer spannungsebenenübergreifenden Blindleistungsregelung auf. Neben d...
Im Rahmen des Forschungsprojekts AC2DC werden Konzepte sowie deren Umsetzbarkeit zum Betrieb von DC-Verteilnetzen auf Basis konventioneller Nieder- und Mittelspannungs-AC-Kabeltechnik untersucht. Notwendige Systemkonzepte wurden auf Basis physikalischer und technischer Rahmenbedingungen festgelegt sowie umfangreiche Studien zur Strom- und Spannungs...
As the amount of volatile, renewable energy sources in power distribution grids is increasing, the stability of the latter is a vital aspect for grid operators. Within the STABEEL project, the authors seek to develop better rules on how to parametrise the reactive power control of various sources within a distribution grid to increase the performan...
https://ieeexplore.ieee.org/document/9469674
The need for higher transmission capacities even in low (LV) and medium voltage (MV) distribution grids motivates to add direct current (DC) links to homogenous alternating current (AC) grids. The AC2DC project takes up the challenges associated with this transition. The project aims to develop the nece...
https://ieeexplore.ieee.org/document/9469611
This paper summarizes the experiences from the past project phase of the National 5G Energy Hub (N5GEH). In this context the necessity, limitations and benefits of massive sensor and actuator integration through radio-based communication networks in thermal and electrical distribution systems is discuss...
The National 5G Energy Hub is a research association between the TU Dresden and the RWTH Aachen as well as companies from the information technology sector. The project scope can be seen in the context of the digitalization of the energy sector. The key points are therefore sector coupling in the domain of thermal and electrical energy, wireless co...
The integration of volatile, decentralized energy into building energy systems and electrical grids requires intelligent algorithms that are capable of controlling the augmented complexity and the interactions of subsystems efficiently. Not only do the algorithms require computing capacity, but also a feasible information and communication infrastr...
Distributed voltage control using centrally supervised reactive power setpoints is a means of operating distribution grids to the specific demands. However, this way highly depends on the structural integrity of the communication link. To maintain the optimized setpoints even when the link is broken, this paper proposes a Q(U)-fallback solution. Th...
Distributed voltage control using Q(U)-characteristics is a means to facilitate higher penetrations of decentralized generation. However, stability concerns interfere the wider adoption of this technology. Based on a recent introduction of a robust stability criterion for assessment of droop-controlled inverters, this paper aims to improve the mode...
Durch die Transition des Elektroenergiesystems werden die dynamischen Ei-genschaften der dezentralen Erzeugungsanlagen und ihre Fähigkeit zur statischen und dyna-mischen Netzstützung zunehmend relevant für die transiente Stabilität im Übertragungsnetz. Für dahingehende Untersuchungen werden Verteilungsnetze durch vereinfachte Netzäquiva-lente abgeb...
