SU640255A1 - Extremum regulator - Google Patents

Description

keys sensor 2 adjustable signal, the output of which is connected to the first differentiator 3, the signal of which is simultaneously fed to the second differentiator 4, to the input of the module allocation module 5 and to the input of the adder 6. At the inputs of the adder 6 signals from the output of the module 5 allocation module, from the output differentiator 4 and source 7 reference signal. The second switch 8 connects alternately the output of the adder 6 and the output of the source 9 of the adjustable onor signal with the input of the voltage-time interval converter 10. The output signal from the converter voltage-time interval is input to the pulse counter 11, the output of which is connected to the counting input of the trigger 12 and the input of the first switch 13. The output of the trigger 12 through the third switch 14 is connected to the actuator 15 acting on the optimization object 1. The first switch synchronously switches both switching circuits of the second and third switches.

Consider the operation of the proposed device.

The YI signal, proportional to the first derivative of the output coordinate of the optimization object 1, from the output of diffractor 3 simultaneously passes to the module allocation module 5 and the input of the adder 6. The inputs of the adder receive a signal Y from the module 5 allocation module, the signal Y from the differentiator 4 and the signal f / o from source 7 of the reference signal. Thus, the output of the adder is

H () y. + y + y + 1 Switch 8 alternately connects to the input of the converter 10 voltage-time interval the output of the adder 6 and the output of the source 9 of the adjustable reference signal. The signal from the converter output-time interval is fed to the counter AND pulses. Switch 13 synchronously switches both switching circuits simultaneously with the appearance of the signal at the output of the counter 11 pulses. The switch 14 disables the output of the trigger 12 from the actuator 15, de-energizes the power supply circuit of the latter.

Thus, the time of movement of the actuator to one side is determined by the value of the output signal of the adder, the conversion factor of the pulse counter and the steepness of the output signal of the scanning element in the voltage-time interval converter. The time of the stationary state of the actuator is determined by the magnitude of the output voltage of the source of the adjustable reference signal, the conversion rate of the pulse counter and the steepness of the output signal of the scanning element in the voltage-time interval converter.

The magnitude of the reference signal L / o, the steepness of the output signal of the scanning element in the voltage converter-time interval, the voltage of the source of the adjustable reference signal can be selected from the conditions for obtaining the required amplitude of the output coordinate of the object of optimization and the required speed of output to the extremum region. The magnitude of the voltage of the source of the adjustable reference signal and the conversion factor of the pulse counter are selected taking into account the magnitude of the transport lag of the object. Thus, the proposed controller

allows for optimal control of an inertial object with a transport delay in conditions of intense interference with a greater speed of reaching the extremum area, reduces search losses, and therefore, increases accuracy and ensures system stability regardless of initial conditions, improves the operating mode of the actuator, reduces inertia last one.

The technical implementation of the controller is quite simple and can be carried out on typical elements of serial production.

Claims (2)

1. USSR author's certificate number 140114, cl. G 05B 13/02, 1961. 2. USSR author's certificate number 525927, cl. G 05B 13/00, 1976.