SU473157A1 - Control device - Google Patents

Description

one

The invention relates to devices for controlling an automatic controller and disabling it, for example, in self-oscillating systems.

Control devices in auto-oscillatory systems are known, comprising a controller, a reverse moment indication unit, a switching element, reclosing and averaging units.

A disadvantage of the known devices is the need to connect the elements of the logic circuit of the device with a number of functional units of the controller.

This limits the scope of application of such devices.

The proposed device is characterized in that it further comprises a reverse counter, the output of which is connected to the input of the switching element, the second input of which is connected to the output of the reclosing unit. The output of the regulator is connected to the input of the averaging unit and the third input of the switching element and through the indication unit of the reverse moments to the second input of the reverse counter.

The drawing shows a block diagram of the device.

It contains the averaging unit 1, the indication block of the moments of the reverse 2, the counter 3 of the reverse, the switching element 4, the reclosing unit 5 and the regulator 6.

The device works as follows.

In the initial state, the output of the averaging unit 1 is connected through the switching element 4 to the input of the actuator l-m, and at the output of the counter of the reverse 3 - a logical unit.

The command impulse of the reclosing unit 5 releases the counter of the reverse 3. After this, the switching element 4 connects the output of the main regulator lr to the input of the actuator. Xdm. The circuit is included in the operation defined by the algorithm of the main controller.

After the first reverse of the system, output t / i arrives from the output of block 2, after the second reverse, an impulse f / 2, etc. If the number of incoming pulses is equal to the specified value, counter 3 self-blocks. At the same time, the switching element 4 connects the output signal line of the amplifier to the input of the actuator. This ends the control loop.

Subject invention

A control device comprising

a controller, a reverser torque indication unit, a switching element, a reclosing unit and an averaging unit whose output is connected to the first input of the switching element, characterized in that, in order to expand the scope, it additionally contains a reverse counter, the output of which is connected to by the entrance

switching element, the first input - with the output of the reclosing unit; the controller output is connected to the input of the averaging unit, the third input of the switching element and through the indication unit of the reverse moments to the second input of the reverse counter.