A1 Journal article (refereed), original research

Calorimetric Concept for Measurement of Power Losses up to 2 kW in Electric Drives


Publication Details
Authors: Kosonen Antti, Aarniovuori Lassi, Pyrhönen Juha, Niemelä Markku, Backman Jari
Publication year: 2013
Language: English
Related Journal or Series Information: IET Electric Power Applications
Volume number: 7
Issue number: 6
JUFO-Level of this publication: 1
Open Access: Not an Open Access publication

Abstract
Accurate measurement of power losses of high-efficiency devices is difficult. Measurement standards for industrial converters and complete electric drives including both motors and converters will come into effect soon, and measurement methods for these devices should be included. In the calorimetric method, the power losses are measured directly. However, the calorimeters presented previously are mainly tailored systems, and therefore, they typically have very complicated constructions. Hence, their applicability to the evaluation of general electric drives is limited. In this paper, a functional calorimetric measurement concept is suggested for power losses up to 2kW. Such a power loss can be applied with present-day power electronic converters up to 110 kW. The construction of the concept is simple and lightweight. It does not require a complex structure or a large area in the measurement site. The concept is scalable and duplicable for different sizes. Different devices with different cablings can be measured without any problems. The combined standard heat loss measurement uncertainty for the calorimeter is ±0.4%.

Last updated on 2017-22-03 at 15:44