SU1302412A1 - Method of adjusting the integrating a.c.drive - Google Patents

Abstract

The method of setting the integrating drive (P) current relates to the field of electrical engineering and can be used in automation systems and computing technology. According to this method, the scaling and phasing operations of P are carried out sequentially dp of each direction of its rotation. Moreover, in the forward direction, the rotation establishes the minimum mismatch P in speed and phase, and in the opposite direction of rotation, the error in speed and phase is halved without changing its sign. The proposed method, by combining the above operations performed in known P separately, improves the speed and accuracy of tuning P. The device for implementing the method includes an executive motor 1, a tacho generator 2, an amplifier 3, a reference element 4, a large-scale driver unit 5, a phasing driver unit 6, an amplifier setting unit of 7 voltages, a reversing switch 8, a large-scale compensating unit 9, a phasing compensating unit 10, a selective zero-indicator 11, and a strobote-meter 12. 1 Il. (L Network with N

Description

t13024

The invention relates to electrical and can be used in npeiJjHs of different and integrate qih drives of automatics and computational ones NIKI.5

The purpose of the invention is to improve the accuracy and speed of tuning.,

The drawing shows a block diagram of an integrating AC drive, in which the proposed & l w method is implemented.

The integrating drive includes an executive motor 1, an asynchronous tachogenerator 2, the shaft of which is connected to the shaft of the executive motor 1, an amplifier 3, a reference element 4, a scaling driver unit 5, a phase driver unit 6, a voltage divider setting unit 7, -0 reversing switch 8 with an input transformer with a transformer, a scaling compensating unit Y, a phasing compensating unit 10, a selective null indicator 11, the input of which is connected to the output of the reference element 4 and to the input of the amplifier 3, connected to an input actuator block 12 of the engine 1, engine speed with the backing layer

15

thirty

The inputs of the reversing switch 8, the scaling compensating unit 9, the phasing compensating unit 10 and the asynchronous tachogenerator 2 are connected to AC mains, the reversing switch 8 is connected in series by a scaling master unit 5 of the voltage divider 7, the phasing master unit 6 is connected to the same input element 4 comparisons, another input of which is connected to the outputs of the asynchronous tachogenerator 2. of the scaling compensating unit 9 and the phasing component of the singing unit 10. Blo to 12 speed controls, the molset can be made in the form of a strobot-hometer,

The setting method is implemented in a manner that is undesirable.

After the drive self-oscillations are eliminated through the reversing switch 8 on, the variable scaling is fed to the input of the scaling driver unit 5. Selection of the input signal level with the help of the scaling driver unit 5 and the decoupling scaler 7 will achieve

In the forward direction of rotation of the engine 1, the rotational speed of the drive was close to the maximum, for example, it was 0.852, and the flexoscopic image of the rotation of the disk and the strobometer 12 were stationary.

In this case, ck (the simple error of the iOCTb of the drive is equal to zero. With the help of the fuzzy setpoint 1L, its block 6 provides the minimum reading of the null indicator 11., t, e. Phase input signal. Check the speed value, -, wigatel 1 l, if necessary, set its salary value with the help of block 5 “Then, using the reverse switch 8, the phase of the input signal is changed to 18G, i.e. reversing io i engine 1. the speed measured by the strap-topometer 12 is halved, while its sign is preserved, by changing voltage from the output of the scaler to the ID compensator 0x block 9, When inverting} {ohm the direction of rotation, halve the voltage on the numeric dial 1 i without changing the sign by changing the output 1frame of the phase switch of the compressor. lego block 10. I) 5 verify the value of speed and voltage and, if necessary, re-establish the required values for them with the help of blocks 9 and 10.

Then, switch 8 sets the first-and-first-lap: 5 direct direction of the engine v1 of the engine 1 and the rotational speed of the control unit with the M (automatic control unit; 5);

, v, ais; c

and with the help of the phasirukldego of the block o, the g-minimum of the indications of yy :: s indindator 11. Repeat these effects compost; , Jun C: The Phase and Quadrature Stage is owned by the Attenuator and Hope Generator. 2, phasing and scaling of the input signal and the tachogenerator signal 2 with a given accuracy. When the input voltage is equal to kum, the absence of the drive zero drift, is checked.

Thus, the joint implementation of the phase-out operation and the large-scale drive and the drive provides: comrade; 1 and the accuracy and speed of the setting; 7. drive;

Q o rumlula and 3 o b e te n u

31

rum after eliminating auto-oscillations, the drive is dispersed using a controller to the specified speed value in the idle direction of rotation, the real value is measured, the error is eliminated in speed by changing the output voltage of the scaling driver unit, the drive is reversed and accelerated to the specified value speeds in the reverse direction of rotation, the actual value of the drive speed is measured, with the reverse direction of rotation, the speed error is halved without changing its sign by changing the amplitudes The output voltage of the scaling compensating unit, with the drive's forward direction of rotation, measures the voltage at the input of the drive amplifier and using the phasing driver unit, drives the drive to reduce this voltage to the minimum possible value, and with the opposite direction of rotation of the drive - NIN at the input of the drive amplifier, reduce its two without changing the sign by changing the output voltage

Editor A. Shandor Order 1223/55

Compiled by V.Aleshechkin

Tehred M. Khodanich Proofreader M. Sharoshi

Circulation 661 Subscription

VNII11I State Committee of the USSR

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

124

of the phase compensating unit, the operation of reversing the drive is repeated until the required accuracy is obtained. Drive settings for speed and phase are different in that, in order to improve accuracy and speed, after eliminating the speed error in in the forward direction of rotation of the drive by varying the output voltage of the scaling driver unit, measuring the voltage at the input of the drive amplifier, phasing the drive, reversing the drive and accelerating it to a predetermined speed value the indicated measurements of the actual value of the drive speed, halving the speed error without changing its sign by measuring the voltage value at the input of the drive amplifier, halving it without changing the sign, and re-reversing the drive, operations with forward and reverse rotation directions of the drive repeat until the required accuracy of the drive speed and phase adjustment is obtained.

Claims (1)

Claim A method for setting up an integrating AC drive, in which, after eliminating self-oscillations, the drive is accelerated using the controller to a predetermined speed value in the Forward rotation direction, the actual value is measured, the speed error is eliminated by changing the output voltage of the scaling master unit, the drive is reversed and accelerated to a predetermined value speeds in the opposite direction of rotation, measure the actual value of the speed of the drive, in the opposite direction of rotation, halve about the error in speed without changing its sign by changing the 15 amplitude of the output voltage of the scaling compensating unit, with the forward direction of rotation of the drive, measure the voltage at the input of the drive amplifier and using a 20 phasing reference unit, the drive is phased to reduce this voltage to the minimum possible value, with the opposite direction of rotation drive measure the voltage at the input of the drive amplifier, reduce it two without changing the sign by changing the output voltage 4 phasing compensating unit, the drive reversal operation is repeated until the required accuracy is obtained The drive settings in speed and phase, characterized in that, in order to improve accuracy and speed, after eliminating the speed error in the forward direction of rotation the drive by changing the output voltage of the scaling master unit carry out measurements of the voltage at the input of the drive amplifier, phasing the drive, reversing the drive and accelerating it to a predetermined speed , the indicated measurements of the actual value of the drive speed, halving the speed error without changing its sign by measuring the voltage at the input of the drive amplifier, halving it without changing the sign, moreover, reversing the drive, operations with forward and reverse directions of rotation of the drive are repeated until until the required accuracy in adjusting the drive for speed and phase is obtained.