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An electrical machine includes a stator having a stator winding and a secondary transformer coil. A rotor is operatively connected to rotate relative to the stator, wherein the rotor includes a plurality of embedded permanent magnets. A primary transformer coil is wound on the rotor and is operative

An electrical machine includes a stator having a stator winding and a secondary transformer coil. A rotor is operatively connected to rotate relative to the stator, wherein the rotor includes a plurality of embedded permanent magnets. A primary transformer coil is wound on the rotor and is operatively connected to form a rotating transformer with the secondary transformer coil. An inverter/active rectifier component is operatively connected to the stator winding and the secondary transformer coil to control the stator winding based on a sense in the secondary transformer coil received from the primary transformer coil.

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1. An electrical machine system, comprising: a stator including a stator winding and a secondary transformer coil;a rotor operatively connected to rotate relative to the stator, wherein the rotor includes a plurality of embedded permanent magnets;a primary transformer coil wound on the rotor and ope

1. An electrical machine system, comprising: a stator including a stator winding and a secondary transformer coil;a rotor operatively connected to rotate relative to the stator, wherein the rotor includes a plurality of embedded permanent magnets;a primary transformer coil wound on the rotor and operatively connected to form a rotating transformer with the secondary transformer coil; andan inverter/active rectifier component operatively connected to the stator winding and the secondary transformer coil to control the stator winding based on a sense signal in the secondary transformer coil received from the primary transformer coil,wherein the inverter/active rectifier component includes a field oriented control, an adder, a pulse width modulator, and an injection quadrature generator,wherein the field oriented control is connected to the secondary transformer coil to receive the sense signal and generate a reference signal,wherein the adder is connected to both the field oriented control and the injection quadrature generator for outputting a sum of the reference signal and an injection signal from the injection quadrature generator to the pulse width modulator. 2. An electrical machine system as recited in claim 1, further comprising a rotor position detector operatively connected between the inverter/active rectifier component and the secondary transformer coil to receive first and second injection signals from the inverter/active rectifier component, to receive a sense signal at the secondary transformer coil, and to output at least one of rotor speed and rotor position to the inverter/active rectifier component. 3. An electrical machine system as recited in claim 1, further comprising a sense coil connected in parallel with the transformer primary coil. 4. An electrical machine system as recited in claim 1, wherein the inverter/active rectifier component is configured to direct external power through the stator to drive the rotor in a motoring mode and to deliver power from the stator to an external DC load in a generate mode. 5. An electrical machine system as recited in claim 4, wherein the inverter/active rectifier component includes: a position and velocity decoder configured and adapted to receive a sense signal from the secondary transformer coil and to output position and velocity feedback signals; anda proportional and integral regulator with a first switch for switching between a velocity reference input for the motoring mode and a DC voltage reference for the generate mode, and a second switch for switching between the velocity feedback in the motoring mode and a DC voltage feedback input in the generate mode, wherein the proportional and integral regulator is configured to output a quadrature current reference signal and a direct current reference signal in both the motoring and generate modeswherein the field oriented control operatively connected to receive the reference signals from the proportional and integral regulator, the position feedback from the position and velocity decoder, and inverter current signals and to output first and second stationary reference frame command signals. 6. An electrical machine system as recited in claim 5, wherein the injection quadrature generator is operatively connected to inject a first injection signal into the adder for outputting the sum of the first injection signal and the first stationary reference frame command signal and to inject a second injection signal into the adder for outputting the sum of the second injection signal and the second stationary reference frame command signal. 7. An electrical machine system as recited in claim 6, wherein the position and velocity decoder includes: a synchronous filter operatively connected to receive the sense signal from the secondary transformer coil as well as to receive the first and second injection signals from the injection quadrature generator, and to output a filtered sense signal; anda position/velocity estimator operatively connected to receive the filtered sense signal from the synchronous filter and to receive the first injection signal from the injection quadrature generator and to output the position and velocity feedback signals. 8. An electrical machine system as recited in claim 7, wherein the position/velocity estimator includes: a first zero cross detector operatively connected to receive the first injection signal and to output a reset signal to a counter;a clock operatively connected to provide a timing signal to the counter;a second zero cross detector operatively connected to receive the filtered sense signal and to output a latch signal;a latch component operatively connected to receive the latch signal and to output the position feedback signal; anda differentiator operatively connected to receive the position feedback signal and to output the velocity feedback signal. 9. An inverter/active rectifier component for directing external power through an electrical machine stator to drive a rotor in a motoring mode and to deliver power from the stator to an external DC load in a generate mode, the inverter/active rectifier component comprising: a position and velocity decoder configured and adapted to receive a sense signal and to output position and velocity feedback signals;a proportional and integral regulator with a first switch for switching between a velocity reference input for the motoring mode and a DC voltage reference for a generate mode, and a second switch for switching between the velocity feedback in the motoring mode and a DC voltage feedback input in the generate mode, wherein the proportional and integral regulator is configured to output a quadrature current reference signal and a direct current reference signal in both the motoring and generate modes;a field oriented control operatively connected to receive the reference signals from the proportional and integral regulator, the position feedback from the position and velocity decoder, and inverter current signals and to output first and second stationary reference frame command signals; andan adder connected to both the field oriented control and an injection quadrature generator for outputting a sum of the first and second stationary reference frame command signals and an injection signal from the injection quadrature generator. 10. An inverter/active rectifier component as recited in claim 9, further comprising an injection quadrature generator operatively connected to inject a first injection signal into an adder for outputting the sum of the first injection signal and the first stationary reference frame command signal and to inject a second injection signal into an adder for outputting the sum of the second injection signal and the second stationary reference frame command signal. 11. An inverter/active rectifier as recited in claim 9, wherein the position velocity decoder includes: a synchronous filter operatively connected to receive the sense signal as well as to receive the first and second injection signals from the injection quadrature generator, and to output a filtered sense signal; anda position/velocity estimator operatively connected to receive the filtered sense signal from the synchronous filter and to receive the first injection signal from the injection quadrature generator and to output the position and velocity feedback signals. 12. An inverter/active rectifier as recited in claim 11, wherein the position/velocity estimator includes: a first zero cross detector operatively connected to receive the first injection signal and to output a reset signal to a counter;a clock operatively connected to provide a timing signal to the counter;a second zero cross detector operatively connected to receive the filtered sense signal and to output a latch signal;a latch component operatively connected to receive the latch signal and to output the position feedback signal; anda differentiator operatively connected to receive the position feedback signal and to output the velocity feedback signal. 13. A method of controlling an electrical machine comprising: receiving a sense signal with a secondary transformer coil of an electrical machine;estimating position and velocity of the rotor based on the sense signal; andusing estimated position and velocity of the rotor to control the electrical machine by adding, in an adder, first and second injection signals received from an injection quadrature generator to first and second stationary reference command signals received from a field oriented controller. 14. A method as recited in claim 13, wherein using estimated position and velocity of the rotor to control the electrical machine includes controlling rotor toque in a motoring mode and controlling DC voltage at the output of an active rectifier in a generate mode. 15. A method as recited in claim 13, wherein estimating position and velocity includes estimating position and velocity based on the first and second injection signals by providing an output of the adder to a pulse width modulator operating an engine start inverter during a motoring mode and as an active rectifier during a generate mode.