ON POWER STREAM IN MOTOR OR DRIVE SYSTEM
Abstract
In a motor or a drive system the quantity of power increases in the direction opposite to the direction of power flow. Energy losses and energy efficiency of a motor or drive system must be presented as functions of physical quantities independent of losses. Such quantities are speed and load. But the picture of power stream in a motor or drive system is presented in the literature in the form of traditional Sankey diagram of power decrease in the direction of power flow. The paper refers to Matthew H. Sankey’s diagram in his paper „The Thermal Efficiency of Steam Engines” of 1898. Presented is also a diagram of power increase in the direction opposite to the direction of power flow. The diagram, replacing the Sankey’s diagram, opens a new prospect for research into power of energy losses and efficiency of motors and drive systems.
Keywords:
motors, drive systems, energy losses, energy efficiency, Sankey diagram, new research fieldDetails
- Issue
- Vol. 23 No. 4(92) (2016)
- Section
- Latest Articles
- Published
- 20-01-2017
- DOI:
- https://doi.org/10.1515/pomr-2016-0074
- Licencja:
-
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Open Access License
This journal provides immediate open access to its content under the Creative Commons BY 4.0 license. Authors who publish with this journal retain all copyrights and agree to the terms of the CC BY 4.0 license.
