SU1464137A1 - Multichannel regulator - Google Patents

Abstract

The invention relates to automatic control. The purpose of the invention is to improve the control accuracy. The multichannel regulator includes error meters 1 for the number of control channels, module allocation modules 2 for the number of control channels, sampling-storage units 3 for the number of control channels, switches 4 and 5, maximum detector 6, register 7, integrator 8, threshold element 9, pulse shaper 10, reference voltage source 11, control unit 12. 1 sludge.

Description

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This invention relates to automatic control.

The purpose of the invention is to improve control accuracy.

The drawing shows a block diagram of a multichannel controller,

The multichannel regulator includes the following error meters 1 by the number of control channels, blocks 2, allocation module by number of channels, controls, blocks 3 samples — storage by the number of control channels, the first 4 and second 5 switches, the maximum detector 6, register 7, integrator 8, threshold element 9, driver 10 pulses, reference voltage source 11 and regulating unit 12o

The regulator works as follows.

The feedback signals from the control object are fed to the subtractive inputs of the error meter 1, to the summing inputs of which the job signals are received. From the outputs of the error meter 1, the signals are fed to the inputs of the blocks 2 in the slot module. At the outputs of these blocks, signals of one polarity are formed regardless of the signs of the error signals to ensure operation of the detector 6, which selects the control channel with the maximum signal level from. As a result, a logical unit signal appears at the output of the maximum detector 6 in which the parameter deviation from the given value is maximum at a given time. The signal of the logic unit is recorded only at that bit of register 7., which corresponds to the parameter with the maximum deviation from the specified value, the signal from the output of the corresponding bit of register 7 is fed to the control inputs of the first 4 and second switches and to the control the input of the sampling-storage box 3, selecting the control channel required at the given time. In this case, the regulating unit 12 uses the second switch 5 to connect the deviation of the parameter from the specified value to the channel to the maximum. The signal from the output of the regulating unit 12 is recalled in the corresponding block 3 of the sample - storage and enters

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at the output of the controller to the control object.

In order to control using one control unit 12 over several significantly different dynamic characteristics of the channels, it is necessary to allocate different time intervals for control over each channel, which is achieved by selecting the first integrator 8 for the required integration time.

The signal from the output of the integrator 8 is fed to the threshold element 9, and when the signal from the output of the integrator reaches the threshold value, the driver of 10 pulses is triggered. 8 to the initial state. In this case, the register 7 records the unit to the bit corresponding to the channel number, in which the deviation of the controlled parameter from the specified value is maximum, and with the help of the integrator 8 and the threshold element 9 a time delay is formed corresponding to the dynamic characteristics of the selected control channel.

Claims (1)

Invention Formula A multichannel controller containing the first and second switches and the number of control channels of the error meters, the summing input of each of which is the master input of the controller, the subtracting input of each is the feedback input of the controller, and the output of each of them is directly connected to the corresponding signal input of the second switch, connected by an output to the input of the regulating unit, and through a module extracting the module of the same channel to the corresponding input of the maximum detector, characterized in that that, in order to ensure control accuracy, a register was inserted in it, a sequentially connected integrator, a threshold element and a pulse shaper, a source of reference voltage and, according to the number of control channels, sampling-storage blocks, each signal input 14641 The one of which is connected to the output of the regulating unit, and the output of each is the corresponding output of the regulator, while the output of the reference voltage source is connected to the reference input of the first switch, the outputs of which are connected to the corresponding signal inputs of the integrator, Q connected to you37 the pulse driver and with the control input of the register, the cis (its first inputs are connected by the number of control channels to the corresponding detector outputs, and the register's outputs by the number of channels are connected to the control input of each of the sampling-storage units and to the corresponding; control input of the first and second switches.