Device for measuring of active power and energy at machine tools

Abstract

This article describes developing of device for measuring active power and energy at machine tools. Demands on measuring of electric energy flow in machine tools are more often with requirement to increasing of efficiency. This problematic is very complicated, because there are some types of electric power supply. Machine tools have main supply with harmonic supply with disturbance, direct current supply with high-frequency disturbance and power supply with PWM modulation. This device primary serves for measuring of AC power between inverter and motor, but also is able measure at other places. Developing consist from developing of electronics and algorithm. Both these part are describes in article. © Springer International Publishing Switzerland 2014.