SU240811A1 - PROJECTAVTOMATIKA » - Google Patents

Description

Known are the controllers for object 1B with self-abatement and varying vehicle inputs, containing a relay amplifier, encompassed by a flexible connection with a speed change circuit that regulates the effect, and an actuator.

In the proposed regulator for the speed and accuracy of work. With a large transport delay relation to the object time constant, two relay relays and two motor time relays are installed, the contacts of which are installed in the circuit, turning on relay relays. Normally: a closed contact of one of the relays is connected between the output of the circuit of changing the speed of the regulating action and the input of the first 1 mexha 1 of | 3Mai. Normally open contacts, one relay-interrupter are connected to the control circuit of the motor relays, and the other relay contacts are connected to the switching circuit, the input nodes of the amplifier, and IB dyna for the output of the control circuit and control actuator input.

On fi.g. 1 shows the electrical circuit of the device; “And FIG. 2 is a diagram along with pai6oTy.

Vani model the object. First-order self-leveling and transport jazz; alternating resistors, 4 and 5, setting the parameters of the object; industrial regulator 6 with flexible reverse C: in the circuit, covering the amplifier of direct current; Executive mechanism 7 with a regulator with a linear flow characteristic in the working range of change

parameter; relay 8, including the actuator, in a “forward” direction, with contacts 9 No. 10; a relay 11, including an actuator in the reverse direction, with contacts 12 and 13 of circuit 14 for changing the speed of the regulating action; a summing amplifier 15, in which the disturbance brought to the input of the object is compared with the control action; Moto, time relay 16 with two normally blink contacts 17 18 vi. one normally open contact 19, motor time relay 20 with two normal, closed contacts 21 and 22, relay interrupter 23 with two normally open contacts 24 l 25 and o, with normally closed contact 26, relay 27 with three normally open (contacts 28 -thirty.

(parZMetr. Kovd the magnitude of this deviation andreset zone; inaccuracy of regulator 6, triggers the executive relay 8 (or //) regulator.a (and Fig. 2 - relay 5), closure contact 10 (OR 13). Through the contact - 10 (or 13) and 22 turns on relay 27. It is put on a self-locking device through its contacts 29 and 30. 0 | The time relay 16 and 20 are turned on through contact 28. 20. The voltage is applied to the exhaust mechanism 7 through contact 17 of relay 16; icooT.v.st., and with the closure of contacts 9 (12) of relay 8 (11). Exposure 1 Contact time 77 determines the duration of OiOHOiBHOiro them Setting pulse T OI regulator is such that during this imshulsa manipulated variable becomes equal to 150-160% disturbances (/).

After a certain time, Pr.01mels the time (after the main impulse is followed by an additional one. Its beginning is determined by the moment when the contact 19 is turned on. 76. The contact .19 turns on the relay 23, which by its contact 26 turns off the controller from the object's output, and by contact 25 closes the electronic input regulator block 6, and contact 24 closes the actuator circuit.

During the time of the additional impulse, H.i, the feedback capacitor of the electronic unit of the regulator 6 is discharged. This causes the relay 11 (8) to turn on and supply voltage to the actuator 7 via pin 12 (9), the sign of which is opposite to the original, which corresponds to The movement of the actuator in the reverse cTOipoHy. As a result of the additional pulse, the engine is placed in an IB position corresponding to the compensation of the magnitude of the current disturbance (f).

After a period of time determined by the exposure of contact 18 (Go.iCH-Tn, + Gd),

de-energizes the relay 23. This causes a new connection of the output 0 | of the object to the input of the regulator 6 through pin 26 and the switching off of the actuator through pin 24 for a time T'a due to the exposure of contact 21 (To.a +.-a-T "2 } - When opened, (pin 21, the circuit returns to its original state.

The introduction of the contact 22 of the relay 20 and the contact 30 of the relay 27 is necessary in order for the time relays 16 and 20 not to be activated before returning them to the initial state. Exposure time KOHTaiKTa 22 - minimum-possible: G1na.

Subject invention

A regulator for objects with a samovyr (by focusing on changing transient delay, containing a relay amplifier covered by flexible feedback with a variable speed control circuit, and an actuator, characterized in that, in order to increase its speed and accuracy with a large transport ratio lagging to the constant time of the object and ensuring the independence of the control time from the lag change, it has two interrupter relays and two motor time relays, cycles (which are set in the switch-on slots of the relay- (Breakers, and the normally closed contact of one of the relay switches is on) between the output of the variable speed of the regulating action and the input of the actuator, (Moreover, the normally open switches (of the contacts of one of the relay-1 breakers are included control circuit of motor relays, and contacts of another relay on) Circuits to the switching circuit of the input nodes of the amplifier And to the communication circuit of the output of the circuit for changing the speed of the regulating action and the input of the actuator.

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