Patent · US Expired

Servomotor control systems

US4661756A · kind A · utility

75Cited by
27References
30Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 18, 1985
Grant dateApr 28, 1987
Priority date
Expiry dateOct 18, 2005

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02P25/08
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

In a servo control system for a reluctance motor, the output of a reference waveform generator is applied to a power converter through a current controller. Under standstill conditions, at least two of the motor windings are energised so that both forward and reverse torques are established, the forward torque being in equilibrium with the reverse torque. The controller may be responsive to a bias signal to establish said torques. The control system may form part of a reluctance motor drive system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.