Methodological problems of replacing low-voltage AC networks with DC networks

The paper discusses the prospects for replacing low-voltage AC power grids of industrial frequency with DC power grids in order to introduce energy-saving equipment and technologies. The modern achievements in the field of energy-saving electric drives are analyzed in detail, which make it possible...

Full description

Saved in:
Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2021-01, Vol.1035 (1), p.12041
Main Authors: Titova, L N, Sergeev, V A
Format: Article
Language:English
Subjects:
Alternating current
Converters
Criteria
Dimensionless analysis
Electric drives
Electric potential
Electric power grids
Electrical networks
Indicators
Quality assessment
Reliability
Technical information
Technology assessment
Voltage
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The paper discusses the prospects for replacing low-voltage AC power grids of industrial frequency with DC power grids in order to introduce energy-saving equipment and technologies. The modern achievements in the field of energy-saving electric drives are analyzed in detail, which make it possible to introduce constant voltage electric networks attractive for investments. The generalized analysis can be performed using the synergetic criterion of the technical and economic efficiency of innovation. To use such a criterion, all indicators to be analyzed must be presented in dimensionless form. We propose to consider separately the technical and operational groups of the generalized technical characteristics of AC and DC electric drives. The selected subset of groups of parameters of electric drives is justified from the point of view of regulatory and technical documents currently in force. This methodology seems to be more objective than the existing industry methodology for assessing product quality based on functional analogues of products being developed. With a synergetic approach, any characteristic is invariant relative to the others, which confirms the objectivity and reliability of the comparison method. The system of indicators is necessary and sufficient, both for technical assessment and for the creation of new designs and the development of directions for the design of electric drives. In conclusion of this work, we give examples of the implementation of such an approach by comparing the achieved indicators of quality and operational reliability of electromechanical energy converters produced by domestic enterprises.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/1035/1/012041