SU1552311A1 - Device for regulation of current - Google Patents

Abstract

The invention relates to electrical engineering. The purpose of the invention is to increase reliability. The device contains parallel circuits from reactors 1.1-1.5 and keys 2.1-2.5 connected in series with output pins 3, current sensor 4 and input pins 5. Control outputs of keys 2.1-2.5 are connected to the outputs of control unit 6. The inductances of the reactors are made in proportion to the weights of the bits of the P-Fibonacci code, thereby achieving a positive effect. 1 tab., 1 Il.

Description

The invention relates to electrical engineering.

The purpose of the invention is to increase reliability.

The drawing shows a diagram of the device.

The device contains parallel circuits from reactors 1.1. ”. 1.5 and keys

2.1 ...

Reactor Inductors

1.1 .. .1.5 are performed in proportion to the weights of the digits of the p-Fibonacci code. The control code of control unit 6 is the Fibonacci p-codes, the weights of the digits of which are given by the following recurrence formula for K <0 ^? at K = 0;

.CH’rSK-O + Ch'rSK-r-P ’for K> 0 where p is the given natural number;

K is the discharge number of the binary Fibonacci p-code;

C> _p (K) - weight of the discharge of the Fibonacci p-code • For the convenience of description, the drawing shows a block diagram of the device corresponding to the value of the Fibonacci code parameter p = 1 and the number of bits of the control code K = 5,

The number of parallel branches is determined by the accuracy with which it is necessary to maintain the current in the load.

The operation of the device is possible in three modes.

The nominal operation mode, in which the control code in the form of a binary combination of electrical pulses is supplied to the control inputs of the keys 2.1 ... 2.5 '. The key for which binary code 0 is supplied is in the closed state, the key for which 1 is fed is put into the open state and connects the circuit between input terminals 5, reactors and output terminals 3. Current is controlled by changing the number and combining reactors 1.1. ..one. 5,

Diagnostic mode, in which a code corresponding to the weight value of one of the most significant digits is supplied to the control inputs of the keys 2,1.0.2,5. The current value (in relative units) is recorded by the current sensor 4, If the circuits containing the key elements and inductances are corrected, then the current sensor 4 is set at the output of the sensor. The corresponding current values are set for all code combinations presented in the table. 0 to 1, then 1 ”to 0 key elements and inductances of all discharges o The absence of deviation of the current value in all control operations is a sign of the health of the device.” In the diagnostic mode, such malfunctions, like a complete failure of a key element or an interturn inductance circuit.

g

The emergency operation mode, in which, upon detection of a faulty circuit consisting of key 2 and reactor 1, it is possible in principle to provide codes in which a faulty discharge is not used. Such codes are a table in which that key is open, 0 kaz ”are presented in indicates

- closed, X - from -

Claims (1)

A device for regulating the current, containing η parallel branches, 4Q connected between the input and output terminals, each of which consists of a series-connected controlled key and reactor, the control inputs of all keys are connected to the outputs of the corresponding bits of the control unit, characterized in that, in order to increase reliability, introduced a current sensor 'connected between the input and output terminals, the output of which is connected to the input of the control unit, and the magnitudes of the inductors of the reactors are proportional to the weights of Fibonacci p-code strings.