SU734610A1 - Follow-up system - Google Patents

Description

one

The invention relates to the field of automatic regulation and can be used to control a wide profile of objects.

Known tracking systems of a wide profile are known, the increase in accuracy and speed of which is achieved by switching two correction devices l.

The following system is also known, comprising a serially connected error meter, an amplifier, an adder, an actuator whose Bbt input is connected to one input of the error meter and an input of a tachogenerator, the output of which through the first functional converter is connected to the second input of the adder through the second function. one of the comparator inputs, the second input of which is connected to the upper end of the error meter and the input of the first threshold device, and the output - through first logic unit

with the second input of the first functional converter, the third input of which through the second logic unit is connected with the output of the first threshold device and the second input of the first logic unit, the second input of the second logic unit through the second threshold device is connected to the output of the tachogenerator, and the third input through the third logic unit with the release of the comparator

iO pa 2.

The following system is known, containing a consistently connected error meter, a first adder, amplification, a second adder, a functional ™

The 15th converter and the executing mechanism, the output of which is connected to one of the inputs of the error meter, the output of the functional converter through the first corrective device connects to one of the inputs of the second adder, and through the second corrective device and the nonlinear block to the corresponding thin input block ywiro-

wife, whose code is connected to the second input of the first sucker 3,

A disadvantage of the known systems is their low speed in comparison with the unadjusted sporadic systems and its low efficiency doesn’t allow copying the interpreting properties of the reverse tachograph.

The closest technical cyui ,. The bones of this invention are the following system, containing the hapedo ™ of water-bonded joints and agreeing on weight loss; sug, olator amplifier and performance device, the output of which is a S1-SHOVOY skull reducer connected to one of the meters of the error meter and directly to the input of the tachogenerator whose output is connected to the second input of the adder via the second 1SHUCH with the third input of the adder and directly to the first nho the house of the first logic block, the second input of which is connected to the output of the mismatch measurement body, and the code - with the control of the second key input and the input of the first inverter j4l.,

The disadvantage of this system is its low speed to high re-regulation.

The aim of the invention is to improve the speed and reduce the overshoot of the following CKCTeTvSbi,

The talent is set to the fact that in the proposed system the system establishes consecutively connected

pulse MODYJShTOp SECOND UliBBpTOp

and the second logic unit, the second input of which is connected to the output of the first inverter and the control input of the first switch, is input latitude-imuil-south modulator connected to the output meter. mismatch

FIG. 1 shows a Saham fugh cnCeivibi; Figs 2 -, diag - rag - .. gma stresses because of the work of the tracking system; FIG. 3 shows a static characteristic of a pulse-width modulator with an inverter, showing the error meter Ij adder 2, engine 3, 3, engine 4, tachogenerator 5 squabble gear Q, nerve and second logical blocks 7j 8, first and second switches 9, first Yu and second inverters 11, 12, pulse width modulus S5TOP 13e & SI-gnahe

eedanile vr - trick Sik1kal uncorrected sistemzg - stand

the signal of the corrected system is the offset of the mismatch, uj is the output signal of the tachogenerator 5j with the zone of total 1 or the width-pulse modulator 13,

 the duty cycle of the pulse-width modulator 135 Uq and U signals at the outputs of the first and second keys 9 and 1 O, respectively,

The following system works as follows. Scy way.

The following system with unassigned jv and connections () when a signal is applied to its input reproduces at its output: OQ The system error signal in this case is shown in curve 6 in FIG. 2, and the output signal of tacho generator 5 in curve W, ITpivi inverse In this case, the first logical block 7 does not produce an output signal, so the output of the first inverter 11 contains a control signal allowing the passage through the second logic block 8 on the first to The 9 mismatch signal g ,, preliminarily imparted by impulse impulse modulator 13 and the second ice 12, the first key O, allows the output signal of the tachogenerator {-1i Б Ш with a duty cycle J s defined equivalent to the static x racial and widespread mysticism, D. 13 together with the second inverter 12 (FNGS 3). As a result, at the output of the primary key 9, a feedback signal is generated from the signal U q (part O i, s% f2 .2),

Claims (4)

FiaJi can be seen short-circuit fig. 2, the signal Uj on the beginning K-N-tervele of the acceleration of the executive dBigatap 4 is zero and, as a result, the interpreting action of the tachogenerator 5 does not affect the transition process of the system, which is due to the previous one; W -; 1 of the signal 6 of the saturation zone with the Shi ™ impulse modulator 13 with the input factor 12 (Fig. 3) "Further increase of the feedback signal Uq, inversely proportional to the value of the error signal, 6 g connecting the output signal of the tachogenerator B Ш с to the input of the adder 2 only at the moment of the first matching of the axes (in the general case, when the error signal is equal to zero (due to the feedback, the feedback signal 57 does not significantly affect the performance of the system 6. And the ID at the output of the first logical block 7 generates a control signal that locks the second logical block 8 through the first inverter 11 and at the same time allows the passage of the signal W through the second key 10 to the drive of the suxator 2, and the output of the second key 10 is formed. connection (parts - tj -tx in Fig. 2), which is the undeformed output signal of the tachogenerator 5. As a result, in areas the effective suppression of oscillations and the transition process in the system can be represented by the GQ curve (Fig. 2). In the future, the work of the follow ing system is similar. Thus, switching feedback signals can significantly improve the efficiency of using tacho feedback in a tracking system. It should be emphasized that an appropriate choice of the transmission coefficient of the pulse-width modulator and the zone f can affect the dynamic characteristics of the system in a wide range, ensuring the required quality of the transition process, up to aaa periodic, with a slight increase in the adjustment time of the axes in carried a corrected system. Claims of the Invention The following system, comprising a consistently connected resolution meter, an adder, an amplifier and a motor, the output of which is connected to the input of the error meter via the power reducer and directly to the input of the tachogenerator, the output of which through the first key is connected to the second input of the adder, through the second key - with the third input of the adder and directly with the first input of the first logic unit, the second input of which is connected to the output of the error meter, and the output one with a control input of the second switch and an input of the first inverter, characterized in that. In order to reduce overshoot and increase speed, a pulse-width modulator connected in series, a second inverter and a second logic unit, whose second input is connected to the output of the first inverter, are installed, and the output is connected to the control input of the first key, as well as a pulse-width modulator connected to the output of the error meter. Sources of information taken into account in the examination 1.Juris E E. Theory of automatic control. L., Energie, 1969, p. 249-251. 2. USSR author's certificate number 479079, cl. From 05 To 11 / GS, 1971. 3. Certificate of authorship on application no. 2439991 / 18-24, cl. G05 B 11/01 of 03.01.77. 4. Authors svdete ss- USSR № 56528О, class. GO5 B 11 / O1, 1974. (four)