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Title: State observer for synchronous motors

A state observer driven by measurements of phase voltages and currents for estimating the angular orientation of a rotor of a synchronous motor such as a variable reluctance motor (VRM). Phase voltages and currents are detected and serve as inputs to a state observer. The state observer includes a mathematical model of the electromechanical operation of the synchronous motor. The characteristics of the state observer are selected so that the observer estimates converge to the actual rotor angular orientation and velocity, winding phase flux linkages or currents.
Inventors:
 [1]
  1. (Waltham, MA)
Issue Date:
OSTI Identifier:
869205
Assignee:
Massachusetts Institute of Technology (Cambridge, MA) OSTI
Patent Number(s):
US 5296793
Application Number:
06/927,532
Contract Number:
AC08-80CS50101
Research Org:
AEROSPACE CORP
Country of Publication:
United States
Language:
English
Subject:
observer; synchronous; motors; driven; measurements; phase; voltages; currents; estimating; angular; orientation; rotor; motor; variable; reluctance; vrm; detected; serve; inputs; mathematical; model; electromechanical; operation; characteristics; selected; estimates; converge; velocity; winding; flux; linkages; synchronous motor; mathematical model; angular orientation; phase voltages; /318/