Results 221 to 230 of about 87,496 (269)
Some of the next articles are maybe not open access.
Advances in AC drive technology
Proceedings of IEEE Technical Conference on Rubber and Plastics Industry, 2002Today, the adjustable speed AC drive industry is experiencing dynamic advances in applying various new technologies to standard drives which were historically confined to research labs. These advances are leading to many practical benefits for the users of this type of equipment including: lower initial costs, smaller size, robustness to eliminate ...
openaire +1 more source
Application of an AC winder drive
Annual Technical Conference on Pulp and Paper Industry, 2002The first major installation of AC adjustable speed drive technology in North America was in 1987 on a Kraft linerboard machine at Union Camp Corporation's (UCC) Savannah, GA, papermill. The success of that installation led to the application of AC drive technology to a high-speed electric backstand winder in the UCC Savannah mill in 1988-9.
P. Werner, J. Archer
openaire +1 more source
Proceedings of Second International Conference on Power Electronics and Drive Systems, 2002
Today all variable speed drives (VSDs) in the metallurgical industry are AC drives. These range from simple Volts/Hertz (V/Hz) to vector controlled drives. Insulated gate bipolar transistor pulse-width modulated (IGBT PWM) inverters offer power ratings up to a few megawatts.
openaire +1 more source
Today all variable speed drives (VSDs) in the metallurgical industry are AC drives. These range from simple Volts/Hertz (V/Hz) to vector controlled drives. Insulated gate bipolar transistor pulse-width modulated (IGBT PWM) inverters offer power ratings up to a few megawatts.
openaire +1 more source
Regeneration for AC drive systems
Proceedings of 1994 IEEE/IAS Annual Textile, Fiber and Film Industry Technical Conference, 2002The need for regenerated voltage control of an AC variable speed drive occurs when a mechanical system connected to an induction motor causes the motor to rotate at a higher frequency than the control frequency of the variable speed providing power to the motor.
openaire +1 more source
AC drive technology for locomotives
Proceedings., Technical Papers Presented at the IEEE/ASME Joint Railroad Conference, 2003The author describes the use of GTO (gate turn-off) thyristors and microprocessor technology in connection with three-phase AC drive engineering for locomotives. The high power ratings of these devices, combined with efficient evaporation-bath cooling methods, have reduced the size and weight of the necessary powerful onboard converter equipment; AC ...
openaire +1 more source
AC Drives in Traction Applications
IEEE Transactions on Industry Applications, 1986DC motors and drives have previously been the choice for traction applications. The desire to use an induction motor in similar applications has been unfulfilled due to the absence of a suitable ac drive controller that could fully exploit the economical, rugged, and simple ac induction motor.
openaire +1 more source
IEEE Transactions on Industry Applications, 1974
This paper indicates the market for a van-type electric vehicle, provides the physical description, and presents the electrical principle of operation of a frequency modulated and pulsewidth modulated power system applied to a 27-kW three-phase squirrelcage age induction motor.
openaire +1 more source
This paper indicates the market for a van-type electric vehicle, provides the physical description, and presents the electrical principle of operation of a frequency modulated and pulsewidth modulated power system applied to a 27-kW three-phase squirrelcage age induction motor.
openaire +1 more source
Forty-First Annual Conference of Electrical Engineering Problems in the Rubber and Plastics Industries, 2003
The basic conceptual principles of operation of vector-controlled AC drives and field-oriented controllers are presented, and the direct and indirect implementations are briefly described. The key performance capability of torque control is emphasized, and mention is made of the difficulties in achieving the desired performance arising from feedback ...
openaire +1 more source
The basic conceptual principles of operation of vector-controlled AC drives and field-oriented controllers are presented, and the direct and indirect implementations are briefly described. The key performance capability of torque control is emphasized, and mention is made of the difficulties in achieving the desired performance arising from feedback ...
openaire +1 more source
Power electronics for ac drives
2010This chapter discusses power electronics for AC drives. Integration of power electronic systems today is at the stage where a single integrated power module consisting of a full active bridge of power semiconductors, integrated gate drivers, and fault detection and reporting logic is available off the shelf.
openaire +1 more source
Effect of drive control on dynamic characteristics of spacecraft tracking-drive flexible systems
Mechanical Systems and Signal Processing, 2021Li Dong-Xu
exaly