Measurement station performance optimization for testing of high efficiency variable speed drives

In efficiency measurements of high performance variable speed drives, it is necessary to perform power measurement on distorted signals with low uncertainty. This involves the adoption of a suitable equipment and an adequate measurement technique. In this paper, a measurement station for digital efficiency measurements on high and low power electrical drives is described. A systematic approach to uncertainty evaluation and a performance optimization criterion are proposed for the automatic measurement station designed for the testing of high efficiency variable speed drives.