TY - GEN A1 - Buchanan, Erin M. A1 - Lewis, Savannah C. A1 - Paris, Bastien A1 - Forscher, Patrick S. A1 - Pavlacic, Jeffrey M. A1 - Beshears, Julie E. A1 - Drexler, Shira Meir A1 - Gourdon-Kanhukamwe, Amélie A1 - Mallik, Peter R A1 - Silan, Miguel Alejandro A. A1 - Miller, Jeremy K. A1 - IJzerman, Hans A1 - Moshontz, Hannah A1 - Beaudry, Jennifer L. A1 - Suchow, Jordan W. A1 - Chartier, Christopher R. A1 - Coles, Nicholas A. A1 - Sharifian, MohammadHasan A1 - Todsen, Anna Louise A1 - Levitan, Carmel A. A1 - Azevedo, Flávio A1 - Legate, Nicole A1 - Heller, Blake A1 - Rothman, Alexander J. A1 - Dorison, Charles A. A1 - Gill, Brian P. A1 - Wang, Ke A1 - Rees, Vaughan W. A1 - Gibbs, Nancy A1 - Goldenberg, Amit A1 - Thi Nguyen, Thuy-vy A1 - Gross, James J. A1 - Kaminski, Gwenaêl A1 - von Bastian, Claudia C. A1 - Paruzel-Czachura, Mariola A1 - Mosannenzadeh, Farnaz A1 - Azouaghe, Soufian A1 - Bran, Alexandre A1 - Ruiz-Fernandez, Susana A1 - Santos, Anabela Caetano A1 - Reggev, Niv A1 - Zickfeld, Janis H. A1 - Akkas, Handan A1 - Pantazi, Myrto A1 - Ropovik, Ivan A1 - Korbmacher, Max A1 - Arriaga, Patrícia A1 - Gjoneska, Biljana A1 - Warmelink, Lara A1 - Alves, Sara G. A1 - de Holanda Coelho, Gabriel Lins A1 - Stieger, Stefan A1 - Schei, Vidar A1 - Hanel, Paul H. P. A1 - Szaszi, Barnabas A1 - Fedotov, Maksim A1 - Antfolk, Jan A1 - Marcu, Gabriela-Mariana A1 - Schrötter, Jana A1 - Kunst, Jonas R. A1 - Geiger, Sandra J. A1 - Adetula, Adeyemi A1 - Kocalar, Halil Emre A1 - Kielińska, Julita A1 - Kačmár, Pavol A1 - Bokkour, Ahmed A1 - Galindo-Caballero, Oscar J. A1 - Djamai, Ikhlas A1 - Pöntinen, Sara Johanna A1 - AGESIN, Bamikole Emmanuel A1 - Jernsäther, Teodor A1 - Urooj, Anum A1 - Rachev, Nikolay R. A1 - Koptjevskaja-Tamm, Maria A1 - Kurfalı, Murathan A1 - Pit, Ilse L. A1 - Li, Ranran A1 - Çoksan, Sami A1 - Dubrov, Dmitrii A1 - Paltrow, Tamar Elise A1 - Baník, Gabriel A1 - Korobova, Tatiana A1 - Studzinska, Anna A1 - Jiang, Xiaoming A1 - Aruta, John Jamir Benzon R. A1 - Vintr, Jáchym A1 - Chiu, Faith A1 - Kaliska, Lada A1 - Berkessel, Jana B. A1 - Tümer, Murat A1 - Morales-Izquierdo, Sara A1 - Chuan-Peng, Hu A1 - Vezirian, Kevin A1 - Rosa, Anna Dalla A1 - Bialobrzeska, Olga A1 - Vasilev, Martin R. A1 - Beitner, Julia A1 - Kácha, Ondřej A1 - Žuro, Barbara A1 - Westerlund, Minja A1 - Nedelcheva-Datsova, Mina A1 - Findor, Andrej A1 - Krupić, Dajana A1 - Kowal, Marta A1 - Askelund, Adrian Dahl A1 - Pourafshari, Razieh A1 - Đorđević, Jasna Milošević A1 - Schmidt, Nadya-Daniela A1 - Baklanova, Ekaterina A1 - Szala, Anna A1 - Zakharov, Ilya A1 - Vranka, Marek A. A1 - Ihaya, Keiko A1 - Grano, Caterina A1 - Cellini, Nicola A1 - Białek, Michał A1 - Anton-Boicuk, Lisa A1 - Dalgar, Ilker A1 - Adıgüzel, Arca A1 - Verharen, Jeroen P. H. A1 - Maturan, Princess Lovella G. A1 - Kassianos, Angelos P. A1 - Oliveira, Raquel A1 - Čadek, Martin A1 - Adoric, Vera Cubela A1 - Özdoğru, Asil Ali A1 - Sverdrup, Therese E. A1 - Aczel, Balazs A1 - Zambrano, Danilo A1 - Ahmed, Afroja A1 - Tamnes, Christian K. A1 - Yamada, Yuki A1 - Volz, Leonhard A1 - Sunami, Naoyuki A1 - Suter, Lilian A1 - Vieira, Luc A1 - Groyecka-Bernard, Agata A1 - Kamburidis, Julia Arhondis A1 - Reips, Ulf-Dietrich A1 - Harutyunyan, Mikayel A1 - Adetula, Gabriel Agboola A1 - Allred, Tara Bulut A1 - Barzykowski, Krystian A1 - Antazo, Benedict G A1 - Zsido, Andras N. A1 - Šakan, Dušana Dušan A1 - Cyrus-Lai, Wilson A1 - Ahlgren, Lina Pernilla A1 - Hruška, Matej A1 - Vega, Diego A1 - Manunta, Efisio A1 - Mokady, Aviv A1 - Capizzi, Mariagrazia A1 - Martončik, Marcel A1 - Say, Nicolas A1 - Filip, Katarzyna A1 - Vilar, Roosevelt A1 - Staniaszek, Karolina A1 - Vdovic, Milica A1 - Adamkovic, Matus A1 - Johannes, Niklas A1 - Hajdu, Nandor A1 - Cohen, Noga A1 - Overkott, Clara A1 - Krupić, Dino A1 - Hubena, Barbora A1 - Nilsonne, Gustav A1 - Mioni, Giovanna A1 - Solorzano, Claudio Singh A1 - Ishii, Tatsunori A1 - Chen, Zhang A1 - Kushnir, Elizaveta A1 - Karaarslan, Cemre A1 - Ribeiro, Rafael R. A1 - Khaoudi, Ahmed A1 - Kossowska, Małgorzata A1 - Bavolar, Jozef A1 - Hoyer, Karlijn A1 - Roczniewska, Marta A1 - Karababa, Alper A1 - Becker, Maja A1 - Monteiro, Renan P. A1 - Kunisato, Yoshihiko A1 - Metin-Orta, Irem A1 - Adamus, Sylwia A1 - Kozma, Luca A1 - Czarnek, Gabriela A1 - Domurat, Artur A1 - Štrukelj, Eva A1 - Alvarez, Daniela Serrato A1 - Parzuchowski, Michal A1 - Massoni, Sébastien A1 - Czamanski-Cohen, Johanna A1 - Pronizius, Ekaterina A1 - Muchembled, Fany A1 - van Schie, Kevin A1 - Saçaklı, Aslı A1 - Hristova, Evgeniya A1 - Kuzminska, Anna O. A1 - Charyate, Abdelilah A1 - Bijlstra, Gijsbert A1 - Afhami, Reza A1 - Majeed, Nadyanna M. A1 - Musser, Erica D. A1 - Sirota, Miroslav A1 - Ross, Robert M. A1 - Yeung, Siu Kit A1 - Papadatou-Pastou, Marietta A1 - Foroni, Francesco A1 - Almeida, Inês A. T. A1 - Grigoryev, Dmitry A1 - Lewis, David M. G. A1 - Holford, Dawn L. A1 - Janssen, Steve M. J. A1 - Tatachari, Srinivasan A1 - Batres, Carlota A1 - Olofsson, Jonas K. A1 - Daches, Shimrit A1 - Belaus, Anabel A1 - Pfuhl, Gerit A1 - Corral-Frias, Nadia Sarai A1 - Sousa, Daniela A1 - Röer, Jan Philipp A1 - Isager, Peder Mortvedt A1 - Godbersen, Hendrik A1 - Walczak, Radoslaw B. A1 - Van Doren, Natalia A1 - Ren, Dongning A1 - Gill, Tripat A1 - Voracek, Martin A1 - DeBruine, Lisa M. A1 - Anne, Michele A1 - Očovaj, Sanja Batić A1 - Thomas, Andrew G. A1 - Arvanitis, Alexios A1 - Ostermann, Thomas A1 - Wolfe, Kelly A1 - Arinze, Nwadiogo Chisom A1 - Bundt, Carsten A1 - Lamm, Claus A1 - Calin-Jageman, Robert J A1 - Davis, William E. A1 - Karekla, Maria A1 - Zorjan, Saša A1 - Jaremka, Lisa M. A1 - Uttley, Jim A1 - Hricova, Monika A1 - Koehn, Monica A A1 - Kiselnikova, Natalia A1 - Bai, Hui A1 - Krafnick, Anthony J. A1 - Balci, Busra Bahar A1 - Ballantyne, Tonia A1 - Lins, Samuel A1 - Vally, Zahir A1 - Esteban-Serna, Celia A1 - Schmidt, Kathleen A1 - Macapagal, Paulo Manuel L. A1 - Szwed, Paulina A1 - Zdybek, Przemysław Marcin A1 - Moreau, David A1 - Collins, W. Matthew A1 - Joy-Gaba, Jennifer A. A1 - Vilares, Iris A1 - Tran, Ulrich S. A1 - Boudesseul, Jordane A1 - Albayrak-Aydemir, Nihan A1 - Dixson, Barnaby James Wyld A1 - Perillo, Jennifer T A1 - Ferreira, Ana A1 - Westgate, Erin C. A1 - Aberson, Christopher L. A1 - Arinze, Azuka Ikechukwu A1 - Jaeger, Bastian A1 - Butt, Muhammad Mussaffa A1 - Silva, Jaime R. A1 - Storage, Daniel Shafik A1 - Janak, Allison P A1 - Jiménez-Leal, William A1 - Soto, Jose A. A1 - Sorokowska, Agnieszka A1 - McCarthy, Randy A1 - Tullett, Alexa M A1 - Frias-Armenta, Martha A1 - Ribeiro, Matheus Fernando Felix A1 - Hartanto, Andree A1 - Forbes, Paul A. G. A1 - Willis, Megan L. A1 - del Carmen Tejada R, María A1 - Torres, Adriana Julieth Olaya A1 - Stephen, Ian D A1 - Vaidis, David C. A1 - de la Rosa-Gómez, Anabel A1 - Yu, Karen A1 - Sutherland, Clare A. M. A1 - Manavalan, Mathi A1 - Behzadnia, Behzad A1 - Urban, Jan A1 - Baskin, Ernest A1 - McFall, Joseph P. A1 - Ogbonnaya, Chisom Esther A1 - Fu, Cynthia H. Y. A1 - Rahal, Rima-Maria A1 - Ndukaihe, Izuchukwu L. G. A1 - Hostler, Thomas J. A1 - Kappes, Heather Barry A1 - Sorokowski, Piotr A1 - Khosla, Meetu A1 - Lazarevic, Ljiljana B. A1 - Eudave, Luis A1 - Vilsmeier, Johannes K. A1 - Luis, Elkin O. A1 - Muda, Rafał A1 - Agadullina, Elena A1 - Cárcamo, Rodrigo A. A1 - Reeck, Crystal A1 - Anjum, Gulnaz A1 - Venegas, Mónica Camila Toro A1 - Misiak, Michal A1 - Ryan, Richard M. A1 - Nock, Nora L. A1 - Travaglino, Giovanni A. A1 - Mensink, Michael C. A1 - Feldman, Gilad A1 - Wichman, Aaron L. A1 - Chou, Weilun A1 - Ziano, Ignazio A1 - Seehuus, Martin A1 - Chopik, William J. A1 - Kung, Franki Y. H. A1 - Carpentier, Joelle A1 - Vaughn, Leigh Ann A1 - Du, Hongfei A1 - Xiao, Qinyu A1 - Lima, Tiago J. S. A1 - Noone, Chris A1 - Onie, Sandersan A1 - Verbruggen, Frederick A1 - Radtke, Theda A1 - Primbs, Maximilian A. T1 - The psychological science accelerator’s COVID-19 rapid-response dataset T2 - Scientific Data Y1 - 2023 U6 - https://doi.org/10.1038/s41597-022-01811-7 SN - 2052-4463 VL - 10 IS - 1 SP - 1 EP - 15 PB - Springer Science and Business Media LLC ER - TY - CHAP A1 - Owczarek, Christian A1 - Krautz, Hans Joachim A1 - Griebe, Steffen A1 - Schrader, A. A1 - Paulick, G. T1 - Progressive combustion of lignite and sludge in atmospheric cycloid combustion system Y1 - 1999 ER - TY - CHAP A1 - Seifarth, Olaf A1 - Wilke, A. A1 - Walczyk, Christian A1 - Dabrowski, Jarek Marek A1 - Zaumseil, Peter A1 - Schmeißer, Dieter A1 - Müssig, Hans-Joachim A1 - Schroeder, Thomas T1 - Band gap and electronic structure determination with XAS and UPS of thin Pr-oxide films on Si(111) T2 - Proceedings of 15th Workshop on Dielectrics in Microelectronics, Bad Saarow, 23 - 25 June 2008, Bad Saarow (Berlin) KW - band gab KW - XAS KW - UPS KW - Si(111) Y1 - 2008 SP - 285 EP - 286 ER - TY - GEN A1 - Schiffer, Johannes A1 - Hans, Christian A. A1 - Kral, Thomas A1 - Ortega, Romeo A1 - Raisch, Jörg T1 - Modelling, Analysis and Experimental Validation of Clock Drift Effects in Low-Inertia Power Systems T2 - IEEE Transactions on Industrial Electronics N2 - Clock drift in digital controllers is of great relevance in many applications. Since almost all real clocks exhibit drifts, this applies in particular to networks composed of several individual units, each of which being operated with its individual clock. In the present paper, we demonstrate via extensive experiments on a microgrid in the megawatt range that clock drifts may impair frequency synchronization in low-inertia power systems. The experiments also show that-in the absence of a common clock-the standard model of an inverter as an ideal voltage source does not capture this phenomenon. As a consequence, we derive a suitably modified model of an inverter-interfaced unit that incorporates the phenomenon of clock drifts. By using the derived model, we investigate the effects of clock drifts on the performance of droop-controlled grid-forming inverters with regard to frequency synchronization and active power sharing. The modeling and analysis is validated via extensive experiments on a microgrid in the megawatt range. Y1 - 2017 UR - https://ieeexplore.ieee.org/document/7781662 U6 - https://doi.org/10.1109/TIE.2016.2638805 SN - 1557-9948 SN - 0278-0046 VL - 64 IS - 7 SP - 5942 EP - 5951 ER - TY - GEN A1 - Schiffer, Johannes A1 - Krishna, Ajay A1 - Hans, Christian A. A1 - Raisch, Jörg A1 - Kral, Thomas T1 - Steady State Evaluation of Distributed Secondary Frequency Control Strategies for Microgrids in the Presence of Clock Drifts T2 - 25th Mediterranean Conference on Control and Automation N2 - Secondary frequency control, i.e., the task of restoring the network frequency to its nominal value following a disturbance, is an important control objective in microgrids. In the present paper, we compare distributed secondary control strategies with regard to their behaviour under the explicit consideration of clock drifts. In particular we show that, if not considered in the tuning procedure, the presence of clock drifts may impair an accurate frequency restoration and power sharing. As a consequence, we derive tuning criteria such that zero steady state frequency deviation and power sharing is achieved even in the presence of clock drifts. Furthermore, the effects of clock drifts of the individual inverters on the different control strategies are discussed analytically and in a numerical case study. Y1 - 2017 UR - http://eprints.whiterose.ac.uk/115991/ U6 - https://doi.org/10.1109/MED.2017.7984168 SN - 2473-3504 SP - 508 EP - 515 ER - TY - BOOK A1 - Parisio, Alessandra A1 - Schiffer, Johannes A1 - Hans, Christian A. ED - Parisio, Alessandra ED - Schiffer, Johannes ED - Hans, Christian A. T1 - System level control and optimisation of microgrids N2 - Microgrids are essential components of next-generation energy grids. A microgrid is a local, integrated energy system comprising interconnected loads and distributed energy resources; they can represent urban or rural districts, islands or local communities. Microgrids can operate in parallel with the main grid or independently in an intentional island mode. When on-site generation is included, intelligent buildings can also function as microgrids. Efficient optimization and control algorithms are crucial for ensuring optimal microgrid performance, making them a continuous focus of research and development in the field of power systems. The next-generation energy grid and urban environment need to be smart and sustainable to deal with the growing energy demand and achieve environmental goals. In this context, the role of local energy systems at the distribution level, which can represent urban or rural districts, islands or local communities, is crucial. System Level Control and Optimisation of Microgrids offers a comprehensive and systematic review of developments in this field. The chapters cover topics such as modelling of integrated energy systems and district heating systems, dynamics and control of grid-connected microgrids, frequency regulation, distributed optimization for energy grids, integration of distributed energy resources, transactive energy management for multi-energy microgrids, and laboratory validation. Real-world examples are provided through case studies based on the EUREF Energy Workshop and fog computing-based decentralized energy management. This book presents a wide range of perspectives from academia and industry on the challenges and solutions in microgrid optimization and control. It serves as a thorough resource for engineers and academics in the control and power systems fields, as well as for graduate students in related disciplines. Advanced control and optimization techniques for microgrids are discussed in depth, with examples and case studies demonstrating their practical application in shaping the future of energy systems. Y1 - 2024 SN - 9781785618758 U6 - https://doi.org/10.1049/PBPO149E PB - The Institution of Engineering and Technology CY - London ER - TY - GEN A1 - Rose, Max A1 - Hans, Christian A. A1 - Schiffer, Johannes T1 - A Predictive Operation Controller for an Electro-Thermal Microgrid Utilizing Variable Flow Temperatures T2 - IFAC-PapersOnLine N2 - We propose an optimal operation controller for an electro-thermal microgrid. Compared to existing work, our approach increases flexibility by operating the thermal network with variable flow temperatures and in that way explicitly exploits its inherent storage capacities. To this end, the microgrid is represented by a multi-layer network composed of an electrical and a thermal layer. We show that the system behavior can be represented by a discrete-time state model derived from DC power flow approximations and 1d Euler equations. Both layers are interconnected via heat pumps. By combining this model with desired operating objectives and constraints, we obtain a constrained convex optimization problem. This is used to derive a model predictive control scheme for the optimal operation of electro-thermal microgrids. The performance of the proposed operation control algorithm is demonstrated in a case study. Y1 - 2023 U6 - https://doi.org/10.1016/j.ifacol.2023.10.195 SN - 2405-8963 VL - 56 IS - 2 SP - 5444 EP - 5450 ER -