초록 ▼

A generator structure is provided for generating an AC power for a load. The generator structure includes a generator connectable to a load and an engine operatively connected to the generator for driving the same. A generator controller is operatively connected to the engine for controlling operati

A generator structure is provided for generating an AC power for a load. The generator structure includes a generator connectable to a load and an engine operatively connected to the generator for driving the same. A generator controller is operatively connected to the engine for controlling operation thereof and operatively connected to a generator for controlling the AC power generated thereby. A communications link connects the generator control to a network.

대표청구항 ▼

A generator structure is provided for generating an AC power for a load. The generator structure includes a generator connectable to a load and an engine operatively connected to the generator for driving the same. A generator controller is operatively connected to the engine for controlling operati

A generator structure is provided for generating an AC power for a load. The generator structure includes a generator connectable to a load and an engine operatively connected to the generator for driving the same. A generator controller is operatively connected to the engine for controlling operation thereof and operatively connected to a generator for controlling the AC power generated thereby. A communications link connects the generator control to a network. ained in the armature current signal of the motor during the slowdown of the motor shaft includes taking into consideration a parameter of the power supplied to the motor prior to the power interruption. 4. The method of claim 1 wherein: estimating the amount of current ripples expected to be contained in the armature current signal of the motor during the slowdown of the motor shaft includes taking into consideration an assumption that the slowdown of the motor shaft occurs over a linear function of time. 5. The method of claim 2 wherein: the parameter of the counted current ripple is the period of the counted current ripple. 6. The method of claim 2 wherein: the counted current ripple is the last current ripple counted by the counter prior to the counter being prevented from counting the current ripples. 7. A method for determining the position of a movable element driven along a travel segment by a shaft of a motor, the method comprising: using a counter to count current ripples contained in an armature current signal of the motor as the motor shaft rotates to drive the movable element along the travel segment; determining the position of the movable element along the travel segment based on the counted current ripples; upon power to the motor being interrupted such that the motor shaft slows down during the power interruption and upon the counter being prevented from counting current ripples contained in the armature current signal of the motor during the slowdown of the motor shaft, estimating an amount of current ripples expected to be contained in the armature current signal of the motor during the slowdown of the motor shaft by taking into consideration the period of a counted current ripple; and determining the position of the movable element along the travel segment during the slowdown of the motor shaft based on the estimated amount of current ripples. 8. The method of claim 7 wherein: the counted current ripple used in the step of estimating is the last current ripple counted by the counter prior to the counter being prevented from counting the current ripples. 9. The method of claim 7 wherein: estimating the amount of current ripples expected to be contained in the armature current signal of the motor during the slowdown of the motor shaft includes taking into consideration a parameter of the power supplied to the motor prior to the power interruption. 10. The method of claim 7 wherein: estimating the amount of current ripples expected to be contained in the armature current signal of the motor during the slowdown of the motor shaft includes taking into consideration an assumption that the slowdown of the motor shaft occurs over a linear function of time. 11. A method for determining the position of a movable element driven along a travel segment by a shaft of a motor, the method comprising: using a counter to count current ripples contained in an armature current signal of the motor as the motor shaft rotates to drive the movable element along the travel segment; determining the position of the movable element along the travel segment based on the counted current ripples; upon power to the motor being interrupted such that the motor shaft slows down during the power interruption and upon the counter being prevented from counting the current ripples contained in the armature current signal of the motor during the slowdown of the motor shaft, estimating an amount of current ripples expected to be contained in the armature current signal of the motor during the slowdown of the motor shaft by taking into consideration a parameter of the armature current signal prior to the power interruption; and determining the position of the movable element along the travel segment during the slowdown of the motor shaft based on the estimated amount of current ripples. 12. The method of claim 11 wherein: estimating the amount of current ripples expected to be contained in the arma ture current signal of the motor during the slowdown of the motor shaft includes taking into consideration a parameter of a counted current ripple. 13. The method of claim 12 wherein: the parameter of the counted current ripple is the period of the counted current ripple. 14. The method of claim 12 wherein: the counted current ripple is the last current ripple counted by the counter prior to the counter being prevented from counting current ripples. 15. The method of claim 12 wherein: estimating the amount of current ripples expected to be contained in the armature current signal of the motor during the slowdown of the motor shaft includes taking into consideration as assumption that the slowdown of the motor shaft occurs over a linear function of time.