SU1499318A1 - Object control apparatus - Google Patents

Abstract

The invention relates to the field of automation and can be used in the regulation of objects operating in different modes. The purpose of the invention is to increase the reliability of the device when expanding the range of adjustment. The device contains a controller 1, an adjustable object 2, a power sensor 3, a comparison element 4, an object model 5, a scaling amplifier 6, a dispersion meter 7, a multiplier 8, a comparator 9, a key 10, a nonlinear element 11, allowing to return the adjustable object 2 in a given mode of operation by selecting its gear ratio. 2 Il.

Description

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The invention relates to the field of automation and can be used in the regulation of objects operating in different,

The aim of the invention is to increase the reliability of the device while expanding the range of regulation,

Fig. 2 shows a block diagram of a device for regulating an object; FIG. 2 is a characteristic of a non-linear element:

The device contains regulator 1, adjustable object 2, power sensor 3, comparison element 4, object model 3, scaling amplifier 6, meter 7; dispersions, multiplication unit 8, two-threshold comparator 9, key 10, nonlinear element 11,

The device works as follows;

In the initial state, CLS 10 is closed, forming the circuit: block .8. Multiplication. - electronic key 10 - model 5 of the object. Nonlinear element 11 works i On the linear segment AND - b (Fig, 2),

Adjustable object 2 operates in a given mode and generates a signal of a given magnitude Vgd, 2. This signal is fed to the input of the comparison element 4, to another input of which a reference signal is fed from you: | of the model 5 of the object. At the output of the element 4. Comparison of the signal mismatch is rhubarb. O or has a small value and satisfies the condition V: /) :: V (2 .. From the output of amplifier 6 to the input of model 5 of the object, a signal is received that is equal to V to the second input of model 5 of the object, a mismatch signal arrives

If the mode of operation of the adjustable volume 2 differs from the setpoint ratio, t, e, the object transfer coefficient is not equal to the transfer ratio of amplifier 6, then the output of the adjustable object will be a signal that differs significantly from the output signal in the specified mode

At the output of the comparison element 4, the error signal does not satisfy the condition, i.e. ,,:

V V4 V,. The signal from the two-threshold comparator 9 is fed to the control - U1TSIY input key 10 and opens the circuit:

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At the same time, from the output of the comparison element 4, the error signal enters the control input of the nonlinear element 11 and converts it to the operation mode depending on the magnitude and sign of the error signal: neither (+ Od-) (Fig.2) is such that) at the output adjustable object 2, the magnitude of the output signal corresponded to the magnitude of the signal in a given mode, ie This achieves the selection of the transmission coefficient of the chain: nonlinear element 11 - controllable object 2, which is equal in value to the transmission coefficient of the regulated object 2 during its operation in the previous specified mode.

Thus, the device allows to expand the range of regulation and improve the quality of regulation,

Claims (1)

An apparatus for controlling an object, comprising a power sensor, the input of which is connected to the output of the controlled object, and the output is connected to the first input of the comparison element, the second input of which is connected to the controller input and the output of the object model, the first input of which is connected to the output a scaling amplifier connected by the INPUT to the output of the regulator, the output of the reference element is connected to the peragm; the input of the multiplication unit and to the input i: a dispersion meter connected by the output to the second input of the unit In order to increase the reliability of the device when expanding the control range, a two-threshold 1st comparator, a key and a non-linear element are introduced in it, the output of the comparison element is connected to the input of the change in the nonlinear characteristic of the non-linear element and to the input of the two-threshold a comparator, the output of which is connected to the control with the cym input of the key connected by the input to the first input of the multiplication unit, and the output to the second input of the object model, the output of the controller is connected to the information input. nonlinear element connected by the output to the input of the adjustable object. Sch 1. . -sch