Present State and a Futuristic Vision of Motor Drive Technology
One of the main driving force behind the industrial revolution was the invention of the electric motor more than a century ago. Its widespread use for all kinds of mechanical motion has made life simple and has ultimately aided the advancement of human kind. The advent of the inverter that facilitated speed and torque control of AC motors has propelled the use of electric motor to new realms that was inconceivable just a mere 30 years ago. Advances in power semiconductors along with digital controls have enabled realization of motor drives that are robust and can control position and speed to a high degree of precision. Use of AC motor drives has also resulted in energy savings and improved system efficiency.
Yaskawa Electric Corporation has been at the forefront of technology, creating reliable drives that consistently push the envelope of engineering achievement. This paper reviews Yaskawa's role in the development and application of the inverter technology to AC motor drives and introduces some futuristic vision for the motor drive technology. The development of more efficient, more powerful electric motor drives to power the demands of the future is important for achieving energy savings, environmentally harmonious drives that do not pollute the electrical power system, and improving productivity. Yaskawa wants to be an integral part of this future and hopes to contribute significantly to achieve this.
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Author: Mahesh M. Swamy and Tsuneo Kume, Yaskawa Electric America | File Type: PDF
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