[{"status":"public","abstract":[{"lang":"eng","text":"The present study investigates participants' performance in two different mental body-rotation tasks (MBRTs) under conditions in which dynamic stability is challenged in two different balancing conditions: active balance control (Experiment 1), where participants actively maneuver, and re-active balance control (Experiment 2), where participants react to an external perturbation. The two MBRTs induced either an object-based spatial transformation (based on a same-different judgment) or an egocentric transformation (based on a left-right judgment). In Experiment 1, 48 participants were tested while standing on an even ground (low balancing requirements) or on a balance board (high balancing requirements). In Experiment 2, 32 participants performed while either standing still on a vibration plate or with the vibration plate moving in a low (20 Hz) or high (180 Hz) frequency. In both experiments, the results for response time and response error revealed effects of rotation angle and type of task. An effect of balancing condition was only observed for response error in Experiment 1. More precisely, response times and response errors increased for higher rotation angles. Also, performance was better for egocentric than for object-based spatial transformations. However, the different challenges to dynamic stability in Experiments 1 and 2 did not influence performance in the two MBRTs (except for response errors in Experiment 1) nor in a control condition (Experiment 1) without mental rotation."}],"type":"journal_article","publication":"Human Movement Science","language":[{"iso":"eng"}],"article_number":"103156","article_type":"original","keyword":["Mental rotation","Balance control","Perturbation","Embodiment"],"user_id":"23188","department":[{"_id":"17"},{"_id":"266"}],"_id":"48682","citation":{"ieee":"K. Budde and M. Weigelt, “No effects of different perturbations on the performance in a mental body-rotation task (MBRT) with egocentric perspective transformations and object-based transformations,” <i>Human Movement Science</i>, vol. 92, Art. no. 103156, 2023, doi: <a href=\"https://doi.org/10.1016/j.humov.2023.103156\">10.1016/j.humov.2023.103156</a>.","chicago":"Budde, Kirsten, and Matthias Weigelt. “No Effects of Different Perturbations on the Performance in a Mental Body-Rotation Task (MBRT) with Egocentric Perspective Transformations and Object-Based Transformations.” <i>Human Movement Science</i> 92 (2023). <a href=\"https://doi.org/10.1016/j.humov.2023.103156\">https://doi.org/10.1016/j.humov.2023.103156</a>.","ama":"Budde K, Weigelt M. No effects of different perturbations on the performance in a mental body-rotation task (MBRT) with egocentric perspective transformations and object-based transformations. <i>Human Movement Science</i>. 2023;92. doi:<a href=\"https://doi.org/10.1016/j.humov.2023.103156\">10.1016/j.humov.2023.103156</a>","apa":"Budde, K., &#38; Weigelt, M. (2023). No effects of different perturbations on the performance in a mental body-rotation task (MBRT) with egocentric perspective transformations and object-based transformations. <i>Human Movement Science</i>, <i>92</i>, Article 103156. <a href=\"https://doi.org/10.1016/j.humov.2023.103156\">https://doi.org/10.1016/j.humov.2023.103156</a>","mla":"Budde, Kirsten, and Matthias Weigelt. “No Effects of Different Perturbations on the Performance in a Mental Body-Rotation Task (MBRT) with Egocentric Perspective Transformations and Object-Based Transformations.” <i>Human Movement Science</i>, vol. 92, 103156, Elsevier BV, 2023, doi:<a href=\"https://doi.org/10.1016/j.humov.2023.103156\">10.1016/j.humov.2023.103156</a>.","short":"K. Budde, M. Weigelt, Human Movement Science 92 (2023).","bibtex":"@article{Budde_Weigelt_2023, title={No effects of different perturbations on the performance in a mental body-rotation task (MBRT) with egocentric perspective transformations and object-based transformations}, volume={92}, DOI={<a href=\"https://doi.org/10.1016/j.humov.2023.103156\">10.1016/j.humov.2023.103156</a>}, number={103156}, journal={Human Movement Science}, publisher={Elsevier BV}, author={Budde, Kirsten and Weigelt, Matthias}, year={2023} }"},"intvolume":"        92","year":"2023","publication_status":"published","publication_identifier":{"issn":["0167-9457"]},"doi":"10.1016/j.humov.2023.103156","title":"No effects of different perturbations on the performance in a mental body-rotation task (MBRT) with egocentric perspective transformations and object-based transformations","author":[{"id":"23188","full_name":"Budde, Kirsten","last_name":"Budde","first_name":"Kirsten"},{"last_name":"Weigelt","id":"36388","full_name":"Weigelt, Matthias","first_name":"Matthias"}],"date_created":"2023-11-08T09:16:06Z","volume":92,"publisher":"Elsevier BV","date_updated":"2023-11-08T09:19:43Z"},{"type":"conference","publication":"23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","status":"public","abstract":[{"text":"Modular solid-state transformers (SSTs) are a promising technology in converting power from a 10kV three-phase medium voltage to a lower DC-voltage in the range of 100…400V to provide pure DC power to applications such as electrolyzers for hydrogen generation, data centers with a DC power distribution and DC micro grids. Modular SSTs which can be interpreted as modular multilevel converters with an isolated DC-DC output stage per module, are designed with redundant modules to increase reliability. Usually, each of the three arms operates independently, and therefore, only a fixed number of faulty modules can be compensated in each arm, even if all modules are operational in the remaining two arms. With the proposed zero-sequence voltage injection, up to 100% more faulty modules can be compensated in an arm by employing the same hardware. In addition, module power imbalances are nearly eliminated by utilizing a fundamental frequency zero-sequence voltage. A dominant 3rd harmonic zero-sequence voltage injection in combination with the 5th, 7th and several higher order harmonics with adaptive (small) amplitudes minimize the required arm voltages at steady-state. For nominal operation or symmetrical faults, the proposed technique is equivalent to the well known Min-Max voltage injection, which already reduces the peak arm voltage by 13.4% compared to a constant star point potential. A statistical analysis proves, that the expected number of tolerable faulty modules of the 1MW SST increases by 12% without the need for additional hardware.","lang":"eng"}],"user_id":"34289","department":[{"_id":"52"}],"_id":"29938","language":[{"iso":"eng"}],"keyword":["Solid-State Transformer","Zero sequence voltage","Fault handling strategy","Power balance control technique","Three-phase system"],"publication_status":"published","publication_identifier":{"isbn":["978-9-0758-1537-5"]},"citation":{"ieee":"R. Unruh, J. Lange, F. Schafmeister, and J. Böcker, “Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions,” presented at the 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), Ghent, Belgium, 2021, doi: <a href=\"https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542\">https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542</a>.","chicago":"Unruh, Roland, Jarren Lange, Frank Schafmeister, and Joachim Böcker. “Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions.” In <i>23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe)</i>. IEEE, 2021. <a href=\"https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542\">https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542</a>.","ama":"Unruh R, Lange J, Schafmeister F, Böcker J. Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions. In: <i>23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe)</i>. IEEE; 2021. doi:<a href=\"https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542\">https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542</a>","bibtex":"@inproceedings{Unruh_Lange_Schafmeister_Böcker_2021, title={Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions}, DOI={<a href=\"https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542\">https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542</a>}, booktitle={23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe)}, publisher={IEEE}, author={Unruh, Roland and Lange, Jarren and Schafmeister, Frank and Böcker, Joachim}, year={2021} }","short":"R. Unruh, J. Lange, F. Schafmeister, J. Böcker, in: 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), IEEE, 2021.","mla":"Unruh, Roland, et al. “Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions.” <i>23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe)</i>, IEEE, 2021, doi:<a href=\"https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542\">https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542</a>.","apa":"Unruh, R., Lange, J., Schafmeister, F., &#38; Böcker, J. (2021). Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions. <i>23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe)</i>. 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), Ghent, Belgium. <a href=\"https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542\">https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542</a>"},"year":"2021","author":[{"first_name":"Roland","id":"34289","full_name":"Unruh, Roland","last_name":"Unruh"},{"last_name":"Lange","full_name":"Lange, Jarren","id":"78801","first_name":"Jarren"},{"full_name":"Schafmeister, Frank","id":"71291","last_name":"Schafmeister","first_name":"Frank"},{"id":"66","full_name":"Böcker, Joachim","last_name":"Böcker","orcid":"0000-0002-8480-7295","first_name":"Joachim"}],"date_created":"2022-02-21T16:31:34Z","date_updated":"2022-09-09T12:01:42Z","publisher":"IEEE","main_file_link":[{"url":"https://ieeexplore.ieee.org/abstract/document/9570542"}],"conference":{"start_date":"2021-09-06","name":"23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","location":"Ghent, Belgium","end_date":"2021-09-10"},"doi":"https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542","title":"Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions"}]