SU1465302A1 - Device for controlling regulation object - Google Patents

Abstract

This invention relates to automatic control systems. The aim of the invention is to improve the speed of the device. For this, the device containing serially connected control action setter, elements of comparison on position and speed, amplifier, drive, actuator, position and speed sensor, setpoint adjuster, module insertion unit, is additionally equipped with a dividing unit and a key through which the sensor speeds are associated with the corresponding reference element. With large position-mismatch signals, the speed feedback is open, which allows maximum use of the speed capabilities of the drive, and when the actuator approaches the agreed position, the speed feedback closes and the device operates in the usual order. 1 il. (g

Description

one

This invention relates to automatic control systems.

The purpose of the invention is to increase the speed of the device by more fully utilizing the speed of the drive without introducing any corrective devices.

The drawing shows a block diagram of the proposed control system.

The device comprises a control unit 1 of control action, the first 2 and second 3 elements of comparison, respectively, in position and speed, amplifier 4, an actuator consisting, for example, of an electric motor 5 connected to speed sensor 6, gearbox 7 connected to executive

mechanism (object of regulation) 8j sensor 9 position, block 10 highlighted-. neither module, dividing unit 11, third comparison element 12 (comparator), setpoint adjuster 13, key 14.

The device operates as follows:

From the 1: 1 setter, the equalizing signal F, which is proportional to the desired position of the control object 8, is fed to the first input of the position comparison element 2. The second input of the comparison element 2 receives the signal X from the position sensor 9, corresponding to the current position of the adjustment object 8. Element 2 Comparison in accordance with the

O1

with

itocTbro the incoming signals F and X generates the speed reference signal of the Drive, which goes to the first input of the Comparison element 3. The second input of the Comparison Element 3 receives a signal from the output of the key 14,

In accordance with the difference of the signals received, the element of comparison 3: The control voltage is generated; l of the electric motor 5, which is amplified by the amplifier 4. The signal from the output of the amplifier enters the root 1, the electric motor 5, which is driven by the object 9 regulation. The signal corresponding to the current speed of the motor 5, from the output of the speed sensor 6, goes to the information input to} 14. The error signal of the system b g, which corresponds to the difference of the signals F and X, goes through the module allocation module 10 to the first entry of block 11 dividing the second input of which | o is given a signal. from the control unit 1 of the control action and the reference ZaprkzheuL to exclude the possibility of dividing by zero. To form a logical device, for example, a com- puter, from the output of which, depending on the value of the incoming input signal, can be used For example, from the reference input action, it will decrease 0 or 1, respectively, 1 | for non-zero and zero values from the input action. From the output of the unit 1 1 dividing signal

Z - -, corresponding to the relative error of the device on the position, It enters the comparator 12, which also receives a signal from the setpoint adjuster 13 of the settings. From the output of the comparator 12, the signal goes to the control input of the key 14,

The speed feedback is open with the key 14 until the relative error of the system Z is equal in magnitude to the signal that is fed to the comparator from the reference value.

Chika 13 settings. In this case, the engine develops the maximum possible speed and acceleration at a given load. After the signal corresponding to the relative error and the signal coming from the setpoint adjuster are compared, the comparator 12 generates a signal that goes

on the control input key 14, When

this speed feedback is closed and the device is damped.

The moment in time at which the feedback closes in speed occurs is determined by the magnitude of the signal from the setpoint adjuster 13 to the comparator 12, the smaller this signal, the closer to the matching position the closure occurs. speed feedback

Claims (1)

Invention Formula I The control unit for the control object, which contains the control action set in series, two comparison elements, an amplifier, an actuator connected to the speed sensor, and an actuator associated with the position sensor, the output of which is connected to the second input of the first comparison element and The module of the module and the serially connected setpoint adjuster and the third element of comparison, characterized in that, in order to increase speed, it is equipped with a dividing unit and a key controlling the inlet etc. which connected to the output of the third reference element, while the inputs of the dividing unit are connected to the outputs of the corresponding setpoint of the control action and the allocation unit of the module, the output of the dividing unit is connected to the second input of the third comparison element, the output of the speed sensor is connected to the second input of the second element the comparison, and the input allocation unit module is associated with the output of the first comparison element.