Method and apparatus for control of inverter synchronous...

Details Method and apparatus for control of inverter synchronous... Method and apparatus for control of inverter synchronous...

H - Electricity

02

P

318/103, 318/84

H02P 1/46 (2006.01) H02P 1/52 (2006.01) H02P 25/02 (2006.01)

Patent

CA 1137549

METHOD AND APPARATUS FOR CONTROL OF INVERTER SYNCHRONOUS MACHINE DRIVE SYSTEM Abstract of the Disclosure In an inverter-synchronous machine drive system subject to operator control, feedback control is employed to synchronize machine-inverter operation. A phase angle command signal, responsive to a fixed value phase angle signal during initial machine excitation and alternately responsive to machine load variation as controlled by an operator command, is generated and compared against the actual machine phase angle difference between machine phase current and air gap flux. A frequency command signal, responsive to the angle difference therebetween, is impressed on the inverter to vary machine excitation responsive to the magnitude of the phase angle difference.

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