Groupleader
Main research areas
- Methods of localization and elimination of unsymmetrical faults in distribution networks.
- Method of the faulty phase grounding and evaluation of its impact on the security of HV and LV networks.
- Research of a ground fault localization method based on a detailed analysis of the measurements results obtained from real distribution network measurements.
- Innovation of protection functions and algorithms for centralized protection of distribution networks using communication standards according to IEC 61850.
- Risk analysis of dangerous touch and step voltages.
- Development and analysis of functionalities for distributed measurements installed at the LV and MV level (distribution transformer stations monitors, use of electricity meters, etc.).
- Development of SW tools for Sampled Values signal management according to IEC 61850-9-2 standard.
- Testing and development of measurement and protection systems for the power system equipment.
- Network analysis using the distribution network measurements.
Main practical research results
Products, prototypes, software
- Method of determining probability of unsymmetrical failure occurrence points in electrical networks and monitoring system intended for carrying out the method. https://starfos.tacr.cz/en/vysledky-vyzkumu/RIV%2F00216305%3A26220%2F15%3APA21113?query=3vjaaade33rq
- Evaluation method for determining of the probability of an asymmetrical fault location in a distribution network and a monitoring system for performing such method. https://starfos.tacr.cz/en/vysledky-vyzkumu/RIV%2F00216305%3A26220%2F17%3APA21445?query=vxvaaadfhw3q
- Evaluation of pilot operation of system Vdip in Vimperk area. https://starfos.tacr.cz/en/vysledky-vyzkumu/RIV%2F00216305%3A26220%2F22%3APU146422?query=v6yaaadfhjha
- System V-dip for unbalance fault localization. https://starfos.tacr.cz/en/vysledky-vyzkumu/RIV%2F00216305%3A26220%2F21%3APR34463?query=v6yaaadfhjha
- Sampled Value Analyzer - SVA 0.4. https://starfos.tacr.cz/en/vysledky-vyzkumu/RIV%2F00216305%3A26220%2F13%3APR27293?query=3olqaade4kea
- Central Protection Relay Model. https://starfos.tacr.cz/en/vysledky-vyzkumu/RIV%2F00216305%3A26220%2F14%3APR28776?query=zm4qaadfanea
- Service software for the combined indicator of fault states. https://starfos.tacr.cz/vysledky-vyzkumu/RIV%2F25567110%3A_____%2F16%3AN0000002?query=smniaadfooeq
- Locator of unbalanced states in the electrical network. https://starfos.tacr.cz/vysledky-vyzkumu/RIV%2F00216305%3A26220%2F20%3APR33335?query=zbkaaadfbdmq
- Prototype of distributed measuring units V-dip ready. https://starfos.tacr.cz/vysledky-vyzkumu/RIV%2F00216305%3A26220%2F20%3APR34183?query=3ytqaade3u2q
Projects/Industrial contracts
- Development of a 2nd generation Vdip fault localization system. https://starfos.tacr.cz/en/projekty/TK04020187?query=t7pyaadflhfq
- Development of a system for autonomous analysis of fault records in distribution systems. https://starfos.tacr.cz/projekty/TK04020230?query=zb4yaadfbcna
- Development of the system for asymmetrical fault location V-dip. https://starfos.tacr.cz/projekty/TK01020107?query=7o2iaaclpdtq
- Smart Energy Network. https://starfos.tacr.cz/projekty/TK01030094?query=6ociaaclrwsa
Main research publications
- TOPOLÁNEK, D.; LEHTONEN, M.; TOMAN, P.; ORSÁGOVÁ, J.; DRÁPELA, J. An earth fault location method based on negative sequence voltage changes at low voltage side of distribution transformers. INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS, 2020, roč. 118, č. 118, s. 1-8. ISSN: 0142-0615. https://dx.doi.org/10.1016/j.ijepes.2019.105768
- TOPOLÁNEK, D.; KRČÁL, V.; FOLTÝN, L.; PRAKS, P.; VYSOCKÝ, J.; PRAKSOVÁ, R.; PRETTICO, G.; FULLI, G. Optimization method for short circuit current reduction in extensive meshed LV network. INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS, 2023, roč. 152, č. 1, s. 1-10. ISSN: 0142-0615. https://dx.doi.org/10.1016/j.ijepes.2023.109203
- JURÁK, V.; ORSÁGOVÁ, J.; TOPOLÁNEK, D. Testing of the digital arc suppression coil controller using real-time simulator. In Proceedings of the 2023 23rd International Scientific Conference on Electric Power Engineering (EPE). NEW YORK: IEEE, 2023. s. 61-65. ISBN: 979-8-3503-3593-4. https://doi.org/10.1109/EPE58302.2023.10149265
- KRČÁL, V.; TOPOLÁNEK, D.; JURÁK, V.; ORSÁGOVÁ, J. A Software Tool for Setting Upstream Active Power Protection in a Meshed Distribution Network. In Proceedings of the 2023 23rd International Scientific Conference on Electric Power Engineering (EPE). NEW YORK: IEEE, 2023. s. 128-132. ISBN: 979-8-3503-3593-4. https://doi.org/10.1109/EPE58302.2023.10149288
- TOPOLÁNEK, D.; VYČÍTAL, V.; TOMAN, P.; CARMAN, B. Application of the probabilistic approach for earthing system evaluation in distribution network. INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS, 2018, roč. 20, č. 110, s. 268-279. ISSN: 0142-0615. https://doi.org/10.1016/j.ijepes.2018.03.026
