An Overview of Direct Current Distribution System Architectures & Benefits

Venkata Anand Prabhala, Bhanu Prashant Baddipadiga, Poria Fajri and Mehdi Ferdowsi
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Venkata Anand Prabhala: Electrical and Computer Engineering Department, Missouri University of Science and Technology, Rolla, MO 65401, USA
Bhanu Prashant Baddipadiga: Electrical and Computer Engineering Department, Missouri University of Science and Technology, Rolla, MO 65401, USA
Poria Fajri: Electrical and Biomedical Engineering Department, University of Nevada, Reno, NV 89557, USA
Mehdi Ferdowsi: Electrical and Computer Engineering Department, Missouri University of Science and Technology, Rolla, MO 65401, USA

Energies, 2018, vol. 11, issue 9, 1-20

Abstract: This paper examines existing and future direct current (DC) distribution systems with a wide range of applications in data centers, telecommunication systems, commercial buildings, residential homes, electric vehicles, spacecraft, and aircrafts. DC distribution systems have many advantages and disadvantages over their alternating current (AC) counterparts. There are a few surviving examples of DC distribution systems; among them are the telecommunication systems and data centers that use the low-voltage 48 Vdc systems. However, recently, there has been a move towards higher DC bus voltages. In this paper, a comparative study of different DC distribution architectures and bus structures is presented and voltage level selection is discussed for maximizing system efficiency and reliability, reducing system costs, and increasing the flexibility of the system for future expansion. Furthermore, DC distribution systems are investigated from a safety standpoint and the current global market for these distribution systems is also discussed.

Keywords: DC distribution system; bus structure; power architectures; safety; protection; reliability; cost; voltage level (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (16)

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