SU1171750A2 - Electric servo system - Google Patents

Abstract

ELECTRICAL NEXT SYSTEM on author. St. No. 442455, characterized in that, in order to reduce oscillation and increase system speed, it does not include the first module of the module, serially connected reference source, comparator and element I, sequentially. connected to the second module allocation module, an amplifier and a key connected by an output to the input of a constant voltage source, the output and input of a two-pole switch connected to the inputs of the second and first blocks of the module separation connected by the outputs of the second comparator and the second input of the And input connected to the control input of the key. .§

Description

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The invention relates to automation and computing technology and can be used in installations in which it is required to ensure a constant change rate of the output signal regardless of the degree of change of the control signal in a dynamic mode, high quality of the transition process near the steady-state value of the output signal, as well as the proportionality of the values of i of the output and input signals in a quasi-stationary mode, and is an improvement of the known electrical tracking system according to the author. St. № 4А2455.

The purpose of the invention is oscillation and increasing the speed of the system.

Fig. 1 is a block diagram of the system; in fig. 2 - characteristics, which show the operation of the system.

The system contains a comparison unit 1, an inertia unit 2, a scale unit 3, a constant voltage source 4, a double field key 5, a second unit 6 block module, an amplifier 7, a key 8, a source 9 of a reference signal, a comparator 10, element 11, the first module 12 allocation module. Also denoted (Fig. 2) Ug,, input and output signals of the system.

The system works as follows.

Input 11 is significant. exceeds the input signal. When the input signal Ug arrives at the system input, the output signal of the block

1 comparison affects the bipolar key 5. The latter is triggered and gives to the input of the inertial unit

2 constant voltage from the output of source 4 of a constant voltage of the corresponding polarity. The output signal of the inertial unit 2 begins to increase linearly at a rate determined only by the value of the output voltage of source 4. The constant voltage and constant time of the inertial unit 2, With a large constant time, the inertial unit 2 practically corresponds to the integrator in the required time interval.

The second module 6 module allocation, generates at its output a signal that is larger than the signal from the output of the source 9 reference

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signal. Comparator 10 triggers and enters the signal Log. About one of the inputs of the element And 11, which closes the key 8, and the signal from the output of the amplifier 7 does not pass to the control input of the voltage source 4. The first module 12 allocation module generates a signal Log. 1 to the second input element And 11, but since at the first input

element 11 there is a signal log. Oh, then the alarm signal. 1 to its second input does not change its state. In this case, the source 4 constant voltage has

output voltage.

This mode corresponds to the AB section of the transition process (Fig. 2). In this area, the change in the output signal occurs at a constant speed determined only by the voltage from the output of the source 4 of constant voltage and constant time of the inertial unit 2, i.e. the system works in the same way as the known system.

Output signal u close to

the input signal Ug, When the output signal Ug | jjBO3pacTaeT is so that the difference between the input signal Ug and the output signal D ,,. the system becomes equal to

and 10

where - threshold srabatshan comparator 10, given by the source 9 of the reference signal; kg is the transmission coefficient of the second allocation unit 6 module 6, the comparator 10 is converted to another

State and generates a signal Log. one

at the first input of the element 11. At the second input of the element 11, the signal Log arrives. 1 from the output of the first module 12 allocation module, since

at the output of the bipolar key 5

the high voltage from the constant voltage source 4 continues to remain. This mode of operation corresponds to the section BV (Fig. 2).

Element And 11 generates a signal Log. 1 and the key 8 switches to a position in which the signal from the output of the second block 6 module allocation, amplified by amplifier 7, is fed to the control input of the constant voltage source 4 and begins to control its voltage downwards, which reduces the speed of

Claims (1)

ELECTRIC FOLLOW-UP SYSTEM by ed. St. No. 442455, characterized in that, in order to reduce oscillation and improve system performance, the first module selection unit is introduced into it, the reference signal source, the comparator and the And element are connected in series, the second module selection unit, an amplifier and a key connected in series the output with the input of the DC voltage source, the output and input of the bipolar switch are connected to the inputs of the second and first blocks of the module selection, connected by the outputs respectively to the second input of the comparator and the second input the AND element connected to the control input of the key. Figure 1