Abstract
DC Microgrid attains popularity in integrating renewable energy sources and batteries. It also has the potential to achieve higher efficiency than ac power grid under the condition of optimized power flow. In this paper, a general dc microgrid is modeled based on a cluster of general dc nodes, which includes constant power renewables generation, droop-controlled voltage source and different kinds of load. Then the dc power flow is solved for optimization. A voltage restoration method based on consensus communication is used to restore the voltage deviation from droop characteristic. An enhanced current regulator is adopted to guarantee the accurate load sharing considering the impact from sensor error and line resistance. A tie line power flow control method is proposed to regulate the tie line power and increase the system efficiency at light load. All the considered methods only need the local information and the information from its nearest neighbor thus the system expendability is guaranteed. Simulation and experiment results are provided to validate the proposed methods.
Original language | English |
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Title of host publication | Proceedings of IEEE 2016 4th International Symposium on Environment Friendly Energies and Applications (EFEA) |
Number of pages | 6 |
Publisher | IEEE Press |
Publication date | Sept 2016 |
ISBN (Print) | 978-1-5090-0748-6 |
ISBN (Electronic) | 978-1-5090-0749-3 |
DOIs | |
Publication status | Published - Sept 2016 |
Event | IEEE 2016 4th International Symposium on Environment Friendly Energies and Applications (EFEA) - Belgrade, Serbia Duration: 14 Sept 2016 → 16 Sept 2016 http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=7732947 |
Conference
Conference | IEEE 2016 4th International Symposium on Environment Friendly Energies and Applications (EFEA) |
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Country/Territory | Serbia |
City | Belgrade |
Period | 14/09/2016 → 16/09/2016 |
Internet address |
Keywords
- Dc microgrid
- Efficiency
- Power flow