Abstract
Electric railway lines are typically single-phase systems connected to two phases of the power grid. The large and rapid power drawn during the acceleration of the trains can cause voltage and power unbalance in the power system. In order to counteract such unbalance, the installation of a flywheel in the proximity of the traction transformer is proposed. In this paper, a peak shaving control strategy for the power electronic converter accessing energy from the flywheel is presented. Such strategy is based on the synchronization techniques used for single-phase systems, including phase-locked loops and resonant controllers. The paper demonstrates with simulation results satisfactory performance of the controller, which is able to track the traction load and maintain the grid current under a predefined threshold level.
Original language | English |
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Title of host publication | Proceedings of 2018 53rd International Universities Power Engineering Conference |
Number of pages | 6 |
Publisher | IEEE |
Publication date | 20 Nov 2018 |
Article number | 8542032 |
ISBN (Electronic) | 9781538629109 |
DOIs | |
Publication status | Published - 20 Nov 2018 |
Event | 53rd International Universities Power Engineering Conference - Glasgow Caledonian University, Glasgow, United Kingdom Duration: 4 Sept 2018 → 7 Sept 2018 Conference number: 53 https://www.upec2018.com/ |
Conference
Conference | 53rd International Universities Power Engineering Conference |
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Number | 53 |
Location | Glasgow Caledonian University |
Country/Territory | United Kingdom |
City | Glasgow |
Period | 04/09/2018 → 07/09/2018 |
Sponsor | EDF Energy, IEEE, RTDS Technologies, Scottish and Southern Electricity Networks, TJ/H2b Analytical Sevices Ltd |
Internet address |
Series | Proceedings - 2018 53rd International Universities Power Engineering Conference, UPEC 2018 |
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Keywords
- Energy storage
- Flywheel
- Power peak shaving
- Railway systems
- Single-phase systems