CN2181773Y - PID regulator for voltage-regulating speed-regulating motor controller - Google Patents

PID regulator for voltage-regulating speed-regulating motor controller Download PDF

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Publication number
CN2181773Y
CN2181773Y CN 94226771 CN94226771U CN2181773Y CN 2181773 Y CN2181773 Y CN 2181773Y CN 94226771 CN94226771 CN 94226771 CN 94226771 U CN94226771 U CN 94226771U CN 2181773 Y CN2181773 Y CN 2181773Y
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CN
China
Prior art keywords
amplifier
contact
phase
speed
pid
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Expired - Fee Related
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CN 94226771
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Chinese (zh)
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陈照章
顾健
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JIANGSU POLYTECHNIC COLLEGE
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JIANGSU POLYTECHNIC COLLEGE
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Publication of CN2181773Y publication Critical patent/CN2181773Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a voltage regulating and speed regulating control device of motor is applicable to high resistant rotor class three-phase asynchronous motor. The speed feedback type speed control circuit mainly comprises W1, PID2, a comparator 3, a trigger 4, a controllable silicon 5, a speed negative feedback circuit SF 7', a current positive feedback circuit IF8, a current transformer 9, a tachometer and the like. It features that the PID structure is improved to obviously raise its performance, so meeting the winding requirement of China. The controller can approach to ideal winding characteristics, greatly broaden the application range and improve the winding quality of products. The controller is convenient and visual to operate, low in cost and wide in application.

Description

PID regulator for controller of adjustable speed and voltage motor
The utility model relates to a kind of adjuster of variable voltage control control device of motor, is applicable to high resistant rotor class asynchronous motor variable voltage control controller.
At present, the coiling production of industry such as China's weaving, papermaking, chemical industry, wire rod, rubber generally adopts torque motor and controller composition system thereof to carry out work.As shown in Figure 1: its controller mainly is made up of adjuster PID2, circuits for triggering 4, controllable silicon 5 and voltage negative feedback circuit UF7 or negative velocity feedback circuit SF7 ' etc.The adjusting rule of PID make the mechanical characteristic of this system and desirable coiling characteristic (TN=C, wherein T is a moment, N is a rotating speed, constant when C is the coiling specific products) the curved direction is opposite, its linearity L is for just, and wrap factor R is also bad simultaneously, as U among the figure 1Shown in the corresponding curve.Point out according to relevant monograph, the mechanical property of the production system that is used to reel, its linearity L must not be greater than 30%, and the better person of wrap factor R index is 2.And that these two indexs itself have departed from desirable coiling characteristic is very far away, influences winding quality.But the torque motor variable voltage control controller system that uses does not generally also reach above index at present, so its coiling characteristic is just poorer.The special voltage-regulation of working as is under low operating mode, and the degree that mechanical property departs from desirable coiling characteristic increases thereupon, the performance index variation, even can not use, as U among Fig. 3 2Shown in the corresponding curve.
The purpose of this utility model is by improving the PID structure, make the PID effect variation under the ordinary meaning, improve wrap factor R and two indexs of linearity L in the high resistant rotor class electric system thereby controller is used in, reach the purpose of the characteristic TN=C of approximate ideal winding process requirement.
The purpose of this utility model is achieved in that in the PID structure, amplifier A 1End of oppisite phase and its output indirect one by diverter switch and R 1The branch road that is in series; At amplifier A 2End of oppisite phase and negative supply between insert by diverter switch and R 2The branch road that is in series, diverter switch are double-pole switchs, during the position of I, above-mentioned two branch roads are inserted PID realize the utility model purpose in being in Fig. 2, and when being in the II position, two branch roads and amplifier disengaging recover original permanent torque variable voltage control function.
Below in conjunction with accompanying drawing concrete structure of the present utility model is described:
Fig. 1 is the voltage negative feedback of the electric composition of controller and negative velocity feedback (dotted portion) block diagram that the utility model adopts.
Fig. 2 is the electric circuit diagram of the utility model PID
Fig. 3 is an effect curve figure comparison diagram
Fig. 4 is for adopting product schematic diagram of the present utility model
The structure of the utility model PID is such:
The winding mode of available circuit components and parts is:
R 4, R 5, W 1Receive positive supply V after the series connection +And form given circuit between the ground, by W 1Sliding point provides given signal U g, through R 6Receive summing point A, 1 with the indirect R of A 7, introduce negative velocity feedback signal U Sf, 2 and A between meet R 3, introduce the positive current feedback signal, R 9With C 1Series connection back and R 8Compose in parallel differential circuit and receive A point and amplifier A 1End of oppisite phase, A 1Connect a resistance R between in-phase end and the ground 11A 1Meet potentiometer W between output and the ground, the sliding end of W and A 1End of oppisite phase between meet a R 10With C 1The branch road of series connection.R 10, C 2, W proportion of composing integration branch road, at A 1End of oppisite phase and output between meet the voltage-stabiliser tube DW of differential concatenation 1, DW 2Form the amplitude limit link.At A 1Also be connected to resistance R between end of oppisite phase and its output 0At A 1Output and A 2End of oppisite phase between connecting resistance R 12A 2Connecting resistance R between in-phase end and the ground 13, A 2Output and 3 between meet diode D, A 2Connecting resistance R between end of oppisite phase and its output 14
The winding mode of improved key technology is:
At amplifier A 1End of oppisite phase connecting resistance R 1, R 1Other end connection function switch I 2, its corresponding movable contact meets A 1Output; Amplifier A 2Anti-phase termination contact 4, contact 4 and functional switch I 1Connect, its corresponding moving contact meets R 2, R 2Contact 5, contact 5 is connected with negative supply.The 1 termination SF7 ' output of PID, 2 ends connect the output of IF8 then, and 3 ends connect the input of comparison circuit 3.
Its operation principle is such:
The functional switch position places I, and motor D is received in the output of controllable silicon 5 (being the output of controller), with the tachogenerator output signal of motor coaxle, receives the input of SF7 ' on the controller.Power turn-on is regulated given potentiometer W 1Making motor be in certain speed runs well.When motor increased by a fixed load, voltage should rise, and the output torque was increased, with the increase of balanced load torque.R adjusts 1, make the static multiplication factor less (less than 1) of PID, the voltage of increase will lean on rotating speed landing (Usf decline) to realize.Work as R 1Transfer hour, the static multiplication factor of PID diminishes, and the rotating speed landing is big, the mechanical property deliquescing, and, shown in Fig. 3 curve 1.2, make it the desirable coiling characteristic of convergence because mains voltage waveform non-linear makes mechanical property recessed.Because R 1" R 0So, R 0In parallel with functional switch again with R 1Be connected on A after being composed in series circuit 1End of oppisite phase and output feasible equally.Negative supply and A 2Connecing 4 o'clock to 5 o'clock circuit between the end of oppisite phase, is the required voltage of motor operation when compensating zero load.This circuit also can be connected on positive supply V +With summing point A or amplifier A 1End of oppisite phase between, or be connected on V +With A 2Between the in-phase end, perhaps be connected on negative supply V -With A 1Motor operation required voltage in the time of can both compensating zero load between the in-phase end, thus motor speed conforms to set-point when making zero load.When functional switch places II, be conventional speed regulation by constant torque.
The utility model has the advantages that: use the PID after improving controller of forming and the high resistant rotor class motor that comprises torque motor to form system, its wrap factor R 〉=4, linearity L<-10%, occur obviously recessed, compare with prior art (R=2, L<30%), index improves a lot, make the desirable coiling characteristic of mechanical property convergence of motor, shown in curve among Fig. 31.This is when manufacturing experimently into sample and the trial run of certain the product YYTRW132M--4 of electrical machinery plant type electric drilling match with the utility model, with DJS-90 motor characteristic Microcomputer Test System for Motor test gained result.Be adjusted to voltage lower (rotating speed is lower, on the curve shown in curve among Fig. 32, still can convergence desirable coiling characteristic, the scope of application is widened greatly, thereby has improved the product quality of production fields such as papermaking, weaving, chemical industry, rubber, wire rod.Simultaneously, use the utility model that asynchronous machine is realized and sharp, string and sharp, the especially mechanical property of DC series motor.And overcome DC series motor " driving " shortcoming when underloading, can replace in extensive occasion.During work, visual tachometer indication running parameter is arranged, therefore, easy to operate, directly perceived.Can switch coiling speed governing and two kinds of functions of speed regulation by constant torque easily with a functional switch.
The utility model embodiment:
Manufactured experimently YYTC-2 type variable voltage control controller by the utility model technology, the electrical structure of utility model PID adjuster component parameter as shown in Figure 2 is:
R 0:2M R 1:6.8K R 2:120K R 3:20K R 4:4.7K
R 5:220Ω W 1:10K R 6:20K R 7:20K
R 8:20K R 9:2K R 10:5K1 R 11:10K
W:5K1 R 12:20K R 13:10K R 14:20K
C 1:4μ7 C 2:10μ DW 1、DW 2:8.7V
D:1N4148 V : 15V V :-15V
Functional switch is any double-pole switch product.
Adopt product of the present utility model, its structure is formed, as shown in Figure 4:
1. cabinet, the printed circuit board (PCB) of 2. forming, 3. tachometer, 4. rotating speed coarse adjustment, 5. rotating speed fine tuning, 6. mains switch, 7. function diverter switch (I is reeled, II routine), 8. power supply indication, 9. overload indication, 10. standing screw, 11. glue plates, 12. power transformers, 13. current transformers, 14. fuses, 15. lead-in wire bundles, 16. controllable silicons, 17. radiators, 18. terminal boards by PID adjuster etc.

Claims (4)

1, a kind of PID adjuster of speed-regulating pressuring regulating motor controller, the variable voltage control control technology that belongs to high resistant rotor class asynchronous motor, it is characterized in that increasing double-pole switch on existing PID basis, empty load of motor voltage compensation part and static multiplication factor adjusting portion are grouped into.
2, PID adjuster according to claim 1 is characterized in that the floating voltage compensated part is: amplifier A 2Anti-phase termination contact 4, contact 4 meets double-pole functional switch I 1, its corresponding moving contact connecting resistance R 2, R 2Another termination contact 5, contact 5 meets negative supply V -4 and 5 between be by switch and R 2The series circuit of forming.Series circuit between 4 to 5 o'clock also can be connected on positive supply V +With summing point A or amplifier A 1End of oppisite phase between, or be connected on V +With A 2Between the in-phase end, perhaps be connected on negative supply V -With A 1Between the in-phase end.
3,, it is characterized in that static multiplication factor adjusting portion is divided into: amplifier A according to the described PID adjuster of claim 1 1The anti-phase termination resistance R of adjusting 1, R 1Another termination double-pole switch I 2, its corresponding moving contact meets amplifier A 1Output; Because R 1" R 0, static multiplication factor is regulated part also can be by functional switch and R 0After the parallel connection again with R 1Amplifier A is received in series connection afterwards again 1Form between end of oppisite phase and its output.
4, according to claim 1,2,3 described PID adjusters, it is characterized in that: but the also reversal connection of sound contact of double-pole functional switch.
CN 94226771 1994-02-01 1994-02-01 PID regulator for voltage-regulating speed-regulating motor controller Expired - Fee Related CN2181773Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 94226771 CN2181773Y (en) 1994-02-01 1994-02-01 PID regulator for voltage-regulating speed-regulating motor controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 94226771 CN2181773Y (en) 1994-02-01 1994-02-01 PID regulator for voltage-regulating speed-regulating motor controller

Publications (1)

Publication Number Publication Date
CN2181773Y true CN2181773Y (en) 1994-11-02

Family

ID=33839654

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 94226771 Expired - Fee Related CN2181773Y (en) 1994-02-01 1994-02-01 PID regulator for voltage-regulating speed-regulating motor controller

Country Status (1)

Country Link
CN (1) CN2181773Y (en)

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C19 Lapse of patent right due to non-payment of the annual fee
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