Danfoss Industries, a leader in mechanical and electronic components and solutions, recently announced the launch of the first mass-produced VLT low harmonic drive. The latest addition to Danfoss’ prominent VLT series of drives, the VLT low harmonic drive eliminates the harmonic disturbances on the supply grid by actively imposing currents into the grid so that the high quality sine wave of the grid current is restored.  The issue of preventing harmonic disturbances is growing with the employment of increasingly powerful frequency converters. Despite many years of growth in the drives market, only one out of eight motors is operated by a frequency converter.They expect that the huge potential for energy savings will increase the need for drives, and in turn, increase the need for harmonic disturbance on the supply grid. Like other Danfoss VLT drives, the low harmonic drive is built on a highly modular technology platform that has been very successful in proving their functionality, quality, and overall reliability in other parts of the broad VLT drive programme. The drive has the same modular build-up as Danfoss’ normal highpower drives and shares features like high-energy efficiency, backchannel cooling and user-friendly operation. Due to the modular principle, most elements are produced on a large scale, leading to costeffective production. |
