Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1981-08-13
1984-05-08
Smith, Jr., David
Electricity: motive power systems
Induction motor systems
Primary circuit control
318805, 318808, H02P 540
Patent
active
044477872
ABSTRACT:
Disclosed is an apparatus for operating a converted-fed asynchronous electric motor which comprises a flux computer for determining the position of the flux vector from the input values for the stator voltage provided by said motor by solving all the electrical quantities of the Park equations describing said motor in a given position of the rotor axis, taking into account the parameter values corresponding to the rotor resistance and the stator resistance of said motor whereby signals corresponding to the position of the flux vector and belonging to a solution, can be tapped from said flux computer; a converter control unit coupled to said flux computer and said convertor rectifier respectively, forming the control quantities for driving the converter rectifier from the determined position of the flux vector and from the nominal input values which fix the components of the stator current vector parallel and perpendicular to the flux vector.
REFERENCES:
patent: 3593083 (1971-07-01), Blaschke
patent: 3909687 (1975-09-01), Abbondanti
patent: 3909688 (1975-09-01), Blaschke et al.
patent: 4258302 (1981-03-01), Plunkett
patent: 4388577 (1983-06-01), Blaschke et al.
Blaschke Felix
Schwesig Guenter
Milde Jr. Karl F.
Rodau Andrew G.
Siemens Aktiengesellschaft
Smith Jr. David
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