METHOD FOR ADAPTIVE TWO-POSITION CONTROL Russian patent published in 2013 - IPC G05B11/16 

FIELD: physics.

SUBSTANCE: disclosed is a method for automatic two-position control of oscillatory processes, based on adaptation of duration of the control action with a varying step under the current load of the control object using a two-position signal at the input and output of the controller. Step variation is carried out iteratively depending on the rate of convergence of the process and the approach of the duration of the upper half-wave T_n2 to the value of the expression (1+T_n1/T_u1)·k·T_n1, where T_n1, T_U1 denote the duration of the upper and lower half-waves of the process in steady state conditions during two-position control, k is a coefficient which characterises the required quality of adaptation; at the next step, adaptation is performed iteratively in steps with step value 1 and quality criterion T_n2≤k·T_n1. The control action is then an adapted output signal with duration (1-0.01·k·ℓ)·T_u2, where T_u2 is the duration of the control action obtained at the step for adaptation with a variable step, ℓ is a coefficient obtained at the step for adaptation with a constant step.

EFFECT: reduced self-oscillation amplitude and power saving.

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