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A Multiport DC-DC Modular Multilevel Converter for HVDC Interconnection
- Source :
- 2020 IEEE Applied Power Electronics Conference and Exposition (APEC).
- Publication Year :
- 2020
- Publisher :
- IEEE, 2020.
-
Abstract
- With the number of installed high voltage direct current (HVDC) transmission systems increasing, there is a growing requirement to develop high voltage and power DC-DC converter for interconnecting the HVDC systems with different voltage levels, which can improve the flexibility and reliability of power system. This paper proposes a multiport DC-DC modular multilevel converter (MMC) for multiple HVDC systems interconnection. Besides inheriting the advantages of conventional MMC, the proposed multiport DC-DC MMC also presents several other advantages of fewer submodules amount, more attractive investment cost, and smaller volume. The topology and mathematical models are firstly presented in this paper. Next, the operation principle analyses including the required submodules amount and capacitor voltage balancing are also elaborately described. Moreover, the control scheme is put forward in this paper as well. Finally, the simulation and experimental results are displayed to verify the feasibility and performance of the proposed multiport DC-DC MMC and corresponding control strategy.
- Subjects :
- Interconnection
business.industry
Computer science
020208 electrical & electronic engineering
05 social sciences
High voltage
Topology (electrical circuits)
02 engineering and technology
Transmission system
Modular design
Electric power system
0202 electrical engineering, electronic engineering, information engineering
Electronic engineering
0501 psychology and cognitive sciences
High-voltage direct current
business
050107 human factors
Voltage
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- 2020 IEEE Applied Power Electronics Conference and Exposition (APEC)
- Accession number :
- edsair.doi...........9463c0b23282ab6f09b998cec00ea761