Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings - 2019 IEEE International Conference on Industrial Technology, ICIT 2019 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 1710-1716 |
| Number of pages | 7 |
| ISBN (electronic) | 978-1-5386-6376-9 |
| ISBN (print) | 978-1-5386-6377-6 |
| Publication status | Published - Feb 2019 |
| Event | 2019 IEEE International Conference on Industrial Technology, ICIT 2019 - Melbourne, Australia Duration: 13 Feb 2019 → 15 Feb 2019 |
Publication series
| Name | Proceedings of the IEEE International Conference on Industrial Technology |
|---|---|
| Volume | 2019-February |
Abstract
A new approach for more energy efficient industrial production processes are smart industrial direct current (DC) microgrids with one or more connections to the alternative current (AC) grid. The advantage of the DC-technology is an easier integration of renewable energies sources and energy storage systems (ESS). Different applications for ESS are possible, for instance an uninterruptible power supply (UPS) for a DC microgrid. Within this paper, a new handling concept for a mains supply failure (e.g. a blackout of the supplying AC grid) with a droop curve control is introduced. In this approach, the droop curve controlling the ESS is adapted, depending on the ESS' state of charge (SoC), which results in a droop curve with a hysteresis. This concept realizes the charging of the ESS only with recuperation energy, that occurs in the DC microgrid during the production process. Thus, all recuperation energy will be kept in the DC microgrid and a transformation of the energy in AC or an energy loss through braking resistors will be avoided. Furthermore, no additional energy is needed to charge the ESS. This increases the energy efficiency of the entire production process. The concept was verified in simulation and validated in experiment and it has shown a DC voltage deviation of less than two percent.
Keywords
- DC microgrid, Droop curve control, Energy efficiency, Uninterruptible power supply
ASJC Scopus subject areas
- Computer Science(all)
- Computer Science Applications
- Engineering(all)
- Electrical and Electronic Engineering
Sustainable Development Goals
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
Proceedings - 2019 IEEE International Conference on Industrial Technology, ICIT 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 1710-1716 8755017 (Proceedings of the IEEE International Conference on Industrial Technology; Vol. 2019-February).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Investigation on an AC grid failure handling of industrial dc microgrids with an energy storage
AU - Mannel, Alexander
AU - Tappe, Svenja
AU - Knöchelmann, Elias
AU - Ortmaier, Tobias
N1 - Funding information: VI. ACKNOWLEDGMENT This project was part of the DC-INDUSTRIE research project, funded by the German Federal ministry of Economic Affairs and Energy (BMWi). For further information see: www.dc-industrie.de
PY - 2019/2
Y1 - 2019/2
N2 - A new approach for more energy efficient industrial production processes are smart industrial direct current (DC) microgrids with one or more connections to the alternative current (AC) grid. The advantage of the DC-technology is an easier integration of renewable energies sources and energy storage systems (ESS). Different applications for ESS are possible, for instance an uninterruptible power supply (UPS) for a DC microgrid. Within this paper, a new handling concept for a mains supply failure (e.g. a blackout of the supplying AC grid) with a droop curve control is introduced. In this approach, the droop curve controlling the ESS is adapted, depending on the ESS' state of charge (SoC), which results in a droop curve with a hysteresis. This concept realizes the charging of the ESS only with recuperation energy, that occurs in the DC microgrid during the production process. Thus, all recuperation energy will be kept in the DC microgrid and a transformation of the energy in AC or an energy loss through braking resistors will be avoided. Furthermore, no additional energy is needed to charge the ESS. This increases the energy efficiency of the entire production process. The concept was verified in simulation and validated in experiment and it has shown a DC voltage deviation of less than two percent.
AB - A new approach for more energy efficient industrial production processes are smart industrial direct current (DC) microgrids with one or more connections to the alternative current (AC) grid. The advantage of the DC-technology is an easier integration of renewable energies sources and energy storage systems (ESS). Different applications for ESS are possible, for instance an uninterruptible power supply (UPS) for a DC microgrid. Within this paper, a new handling concept for a mains supply failure (e.g. a blackout of the supplying AC grid) with a droop curve control is introduced. In this approach, the droop curve controlling the ESS is adapted, depending on the ESS' state of charge (SoC), which results in a droop curve with a hysteresis. This concept realizes the charging of the ESS only with recuperation energy, that occurs in the DC microgrid during the production process. Thus, all recuperation energy will be kept in the DC microgrid and a transformation of the energy in AC or an energy loss through braking resistors will be avoided. Furthermore, no additional energy is needed to charge the ESS. This increases the energy efficiency of the entire production process. The concept was verified in simulation and validated in experiment and it has shown a DC voltage deviation of less than two percent.
KW - DC microgrid
KW - Droop curve control
KW - Energy efficiency
KW - Uninterruptible power supply
UR - http://www.scopus.com/inward/record.url?scp=85069048627&partnerID=8YFLogxK
U2 - 10.1109/ICIT.2019.8755017
DO - 10.1109/ICIT.2019.8755017
M3 - Conference contribution
AN - SCOPUS:85069048627
SN - 978-1-5386-6377-6
T3 - Proceedings of the IEEE International Conference on Industrial Technology
SP - 1710
EP - 1716
BT - Proceedings - 2019 IEEE International Conference on Industrial Technology, ICIT 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE International Conference on Industrial Technology, ICIT 2019
Y2 - 13 February 2019 through 15 February 2019
ER -