Patent ID: 6020713
Filing Date: 2000-02-01
Classification: F02N,H02M,H02P

Abstract:
A controller for a permanent magnet turbogenerator/motor having a gas turbine engine, comprising:a pulse width modulated inverter operably associated with said permanent magnet turbogenerator/motor, said permanent magnet turbogenerator/motor having positive section magnetic windings and separate equal negative section magnetic windings;means to provide electrical power to said permanent magnet turbogenerator/motor through said pulse width modulated inverter to drive said permanent magnet turbogenerator/motor as a motor to accelerate said gas turbine engine of said permanent magnet turbogenerator/motor;means to provide spark and fuel to said gas turbine engine of said permanent magnet turbogenerator/motor during this acceleration to achieve self sustaining operation of said gas turbine engine;means to disconnect the electrical power from said pulse width modulated inverter and said permanent magnet turbogenerator/motor once self sustaining operation of said gas turbine engine is achieved;a rectifier bridge operably associated with said pulse width modulated inverter and said permanent magnet turbogenerator/motor, said rectifier bridge having a positive section connected to said positive section magnetic windings and a negative section connected to said separate equal negative section magnetic windings; andmeans to reconnect said pulse width modulated inverter to said permanent magnet turbogenerator/motor through said rectifier bridge to reconfigure said pulse width modulated inverter to supply three phase, four wire, utility voltage.