SU970313A1 - Device for correcting regulator parameters - Google Patents

Description

(54) DEVICE FOR CORRECTION OF REGULATOR PARAMETERS

The invention relates to the automation of heat and power processes.

Devices are known that allow automatic adjustment of the dynamic parameters of the controller to four degrees fl.

The closest in technical essence to the present invention is a device comprising a block for changing controller parameters, connected to the controller input, a mode factor sensor, a differentiator, a switch connected to the outputs of the differentiator and a nonlinear block, and an adder, the co-inputs. Then they are connected to the outputs of the switch and the mode factor sensor, and the output - to the input of the block for changing the parameters of the controller 2.

A disadvantage of the known device when working with lenses operating in a wide range of modal factors, is the low quality and accuracy of adjustment due to the small number of adjustment stages of the controller parameters, i.e. limited functionality.

The purpose of the invention is to expand the functionality of the device for adjusting the parameters of the controller.

 The goal is achieved by the fact that a series-connected clock pulse generator, a ring-distributor, and, also a series-connected voltage quantizer, a comparison unit,

10 block of logical elements And and a memory block, with the output of the parameter sensor connected to the input of the clock pulse generator and the second input of the comparing unit; the second input of the ring counter-distributor is connected to the output of the comparator block; of the distributor counter 20 and to the corresponding inputs of the voltage quantizer; the outputs of the memory block to the corresponding inputs of the block for changing the parameters of the regulator; whose outputs

25 are connected to the output of the device.

FIG. 1 shows a block diagram of the proposed device in FIG. 2 - graphics that show it

30 work.

The device comprises a clock pulse generator 1, a comparison unit 2, a sensor of 3 parameters, a ring counter-distributor 4, a voltage quantizer 5, a block of logic elements AND, a memory block 7, a block 8 of changes in the controller parameters and a controller 9, keys 10 ... 10ts4 and 11 ..., HM / elements 12, .., 12c, current-limiting, pick-up element 13, source 14 of the reference voltage, elements 15, ..., memories, elements 16.,. , 16fj. .setting parameters of the controller, the logical elements And 17t ,. .., J:

 FIG. 2 shows diagrams explaining the operation of the device, where a is the clock pulses at the generator output; - the nature of the change of the signals UQ- from the parameter sensor and U at the output of the quantizer; c, the pulses at the output of the comparator, the states of the memory elements; d - idealized characteristic of the change in the value of the value of the control parameter setting element.

The device works as follows.

When the device is turned on, the clock pulse generator 1 and the comparison unit 2 begin to receive a signal from the sensor of 3 parameters, which is proportional to the value characterizing the mode of the object at the moment. In accordance with the frequency of the clock pulse generator .ig. 2a) and the size of the ring counter-distributor 4 circulates in it a logical zero periodically arriving at the inputs of the voltage quantizer 5 and the control inputs of the block of logical elements. ) a logical zero passes through the element AND, at the input of which at the time of comparing the signals Ua from the parameter sensor and the U-vOT of the voltage quantizer there is a logical zero (Fig. 2g, at the same time at the time of comparing the indicated signals its device sets up in the initial state and ensures the restart of the distribution counter.

 Next, the pulse from one of the output of the block 6 logical elements And is fed to the corresponding input block

7, in which the corresponding memory element changes its state and a logical unit appears at its output (Fig. 2d). This signal closes the corresponding key in block 8 of the change of the controller parameters, thereby changing the controller settings parameter by an amount corresponding to this mode (Fig. 2 d. At the same time, the logical unit translates the remaining (N-1) memory elements to O at the exit .

By multistage adjustment of the controller parameters, the application of the proposed device allows to increase the accuracy and quality of technological process control over a wide range of parameter changes.

Claims (2)

1. Markov S.K., Osanov B.A. On the issue of hardware implementation of adaptive systems. - In Sat: Management Information Systems. Cheboksary, 1972. 2. USSR author's certificate number 467323, cl. Q05 B 11/01, 1974 C prototype). but. and g Jl 0 L P .fl fl ,