Data processing: generic control systems or specific application – Generic control system – apparatus or process – Optimization or adaptive control
Reexamination Certificate
2007-06-12
2007-06-12
Patel, Ramesh (Department: 2121)
Data processing: generic control systems or specific application
Generic control system, apparatus or process
Optimization or adaptive control
C700S037000, C700S044000, C700S046000, C700S074000, C204S229200, C204S229300, C204S229400, C327S100000, C327S105000, C327S113000, C327S129000, C375S322000, C455S042000, C455S043000
Reexamination Certificate
active
10499917
ABSTRACT:
A digital control device for tracking a sine wave according to the present invention has a compensator, a control object and a feedback gain. An input into the compensator is a signal obtained by subtracting a control quantity from a reference value. An input into the control object is a signal obtained by subtracting an output of the feedback gain from an output of the compensator. A transfer function of the compensator is (k2z+k1)/(z2−2z cos ωT+1), where ω is an angular frequency, T is a sampling period, z is a z operator, and k1and k2are constants. Thus, a second-order compensator can be configured, with which a sinusoidal reference waveform can be tracked simply and with high accuracy.
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Day Pitney LLP
Patel Ramesh
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