SU529541A1 - Redundant generator - Google Patents

Description

(54) BACKUP GENERATOR

The invention relates to radio engineering and can be used in a pulse technique.

A redundant generator is known that contains primary and backup channels, each of which includes a generator whose input is connected to the output of a generator power switch, multiple-input elements OR, connected by outputs to the inputs of a multi-input element AND connected to the output of a pulse counter.

one .

However, the known generator has a low reliability and accuracy.

The purpose of the invention is to increase the reliability and accuracy of the generator.

To do this, an additional pulse counter, a control counter, control keys, each of which are included respectively between one of the generator outputs of the main and backup channels and the input of the multi-input element OR, control keys, additional element OR and additional element AND, and the first input of the additional counter is connected to the first input, and the output is connected to the output of the main pulse counter connected to the input of the control counter, zero and single outputs of bits The first is connected to the inputs of the power switches of the generators, the single outputs of the first and second bits of the control counter are connected to the additional element AND whose output is connected to the enable inputs of the control and monitoring key of the main channel, and the zero inputs of the first and second bits of the control counter are connected to the enabling inputs of the control and monitoring keys of the backup channels, one of the outputs of each of the generators of the main and backup channels via the Control key and the additional element OR Not with the second inputs of the main and additional pulse counters.

The drawing shows a structural electrical circuit of the proposed redundant generator.

The redundant generator contains the main channel and two backup channels (MO3 channels).

There can be more, HCJ for simply-t-, ps-:; - .. occupying a generator that has two reserve ones: ga-nala), which contain respectively generators 1, 2 and 3, the inputs of which are unified with the output of the switching elements of the input elements OR 5, zinnye output from the entrance;., E E element of the element And 8, connection with the input of the pulse counter 9. Keys 10, 11 and 12 inputs

edklyucheny to the outputs of the generator 1, the keys 13, 14 to 15 - to the outputs of the generator 2, kpyuchn 16 17; 18 to the outputs of the generator 3. The outputs of the keys 10, 13 and 16 are connected to the inputs of the multifunctional element OR 5, EXHAUST; keys 11, 14, 17 - to the entrances of the MULTIBHO-. OR 6, the keys 12, 15, 18 - to the inputs of the multiple input gateway;

counter house

control unit 20, zero and one-1 bit outputs, which are connected to the power inputs of the power switch 4, the unit outputs of the first and second bits of the control counter 20 are connected to the element 21, the output of which is connected to the enable inputs of the keys are connected to allowing entry - IS-IS Truth keys and control keys 23 and 24 backup channels.

One of the outputs of the generators 1, 2 and 3 through the keys control 22, 23 and 24, respectively, and the element OR 25 is connected to the second inputs of the counters impuls 9 and 19.

Redundant generator running following O;

In the initial position, the counters 9, 1 9 and 20 are in the zero state. The keys 10f 11, 12 and 22 are open to the high potential of the element I 21, thanks to the high potential of the single outputs of the first to the second bit of the counter 20 at its inputs. The keys 13, 14, 15, 24, 16, 17, 18, 23 are closed by low potential zero outputs according to the first

and the second bits of the counter 20. In the initial state, the supply voltage is applied to the generators 1 and 2. The generator 2 is in the hot standby mode. Generator 3 is de-energized and is in cold standby mode.

During normal operation of the generator 1, the sinaly from each of its outputs comes through the public keys 10, 11, 12 to the elements OR 5, 6, 7, from the outputs of which om

:;.,.,; - v.; /: 04 to the outputs 26, 27, 28 of the channels /: Ne. the inputs of the element 8. As the channel .j of all the channels is in-phase, the output of the element 8 will be pulsed, the frequency of which is equal to the smallest frequency of the general-ora 1. The impulses from the output of the element 8 V-Xj-v- nai-OT- to the transfer input of the counter 9 and u5. the zeroing input of the counter 18, the Key 22 is open, and from the cell: -the input of the element AND LI 2 5, the pulses of the minimum frequency equal to the frequency of the pulses at the output of the element AND 8 will be taken. zeroing the counter 9, the counters 9 and 19 are not filled, no pulses are fed to the input of the counter 20.

When you exit the system any of BUDO

Oscillator 1 or when the frequency of the EM is decreased, the pulses from the And 8 element cease to arrive at input7 of counters 9 and 19 or will be V; they will retreat at a lower frequency. The frequency of the pulses at the input of the counter of the counter 19 will be zero ish-: less than the frequency of the pulses at the transfer input of the counter 1 9. As a result, the counter 1 9 after some time is recalled, the output pulse will set the first-digit igger of the counter 20 to one and return: s to its original state. At the same time, the frequency of the pulses at the transfer input will be set to zero less than the frequency at the zero reset input of the counter 9. Counter 9 will not be filled.

As the frequency of the generator 1 increases, the frequency of the pulses from the output of element 8 increases. At the same time, the frequency of the pulses that are sent to the transfer input of counter 9 will exceed the frequency of the pulses arriving at the zero reset input of counter 9. After some time, the counter 9 will fill up; the first bit of the counter 20 in a single state and itself will return to its original state. At the same time, the frequency of the pulses at the input will be zero more than the frequency of the pulse at the transfer input of counter 19, which will not be filled.

Thus, the first one at the output of counter 20 appears in the event of the failure of one of the generator 1, т clock or its frequency increase.

When switching the trigger of the first discharge of the counter 20 to a single state, the power switch 4 turns off the power from the generator 1 and connects the power to the generator 3. At the same time, the low potential of the single output of the first section of the counter 2 O closes the element 21, which shatters the keys 10 , 11,12,22, Keys 13, 14, 15, and 24. Keys 13, 14, 15, 24 are high at the high power of the first-time zero-output counter of counter 2O. The inputs of the elements OR 5, 6, and 7 will be pulsed from generator 2 through the keys 13, 14, 15, and to the input element OR 25 - from the output of the lowest frequency generator 3 through the switch 24. In this case, on transferring and zeroing the counters inputs 9 1 9 pulses of the same frequency will flow again, and for the counters will not be full. When one fault of generator 2 outputs fails, its frequency decreases or increases, the second pulse from the output of counter 19 or counter 9 goes to the input of counter 20. On the second pulse, the trigger of the first discharge of counter 2O is set to the zero state, and the trigger of the second discharge yes-to-one In this case, the power switch 4 disconnects the power from the generator 2 and again connects the power to the generator 1. The low potential of the zero output of the first discharge of the counter 20 closes the key 13, 14, 15, 24, and the low potential of the single output of the second section row counter 20 will keep the AND gate 21 in the closed state, therefore, the keys 10, 11, 12 and 22 will also be closed. The high potential of the zero output of the second bit of the counter 20 opens the keys 16, 17,18, 23. The pulses at the input of the elements OR 5, 6, 7 will be received from the generator 3 through the keys 16, 17 and 18. The pulses at the input of the element OR 25 will be step out of the output of the smallest frequency of generator 1 through the key 23. In this case, the generator 3 is operational. If the initial malfunction of generator 1 was associated with the failure of one of its outputs or two outputs at once, and the output of the lowest frequency was good the device will operate in this mode until sled5toschey any malfunction. If in generator 1 the output of the lowest frequency is faulty, then a third pulse appears at the output of counter 2O. The need to supply power to the generator 1 for the second time follows from the fact that the first pulse at the output of counter 20 can occur when the generator 1 is in good condition and a fault in the output channel of the lowest frequency of the generator 2. In this case, as in the previous ones, the generator 2 is connected as the main, and generator 3 as a backup. The supply voltage from generator 1 is turned off. However, the presence of a malfunction in generator 2 leads to the appearance of a second pulse immediately at the output of counter 20. The second pulse sends 1 power from generator 2 and connects it again to generator 1. At the same time, generator 3 will work as the main one. The third IKShulse appears on the output frequency of generator 1 at the output of counter 20, which sets the E one state trigger of the first discharge of counter 20, and the power switch 4 disconnects power from the generator 1. High potential The first output of the first digit of the 2O counter opens the key 24. In this case, the pulses at the outputs of the terminals OR 5, 6 and 7 come from the generator 3 through the keys 16, 17 and 18. The pulses at the entrance of the aneNieiiTa PLI 23 come from the output :; frequency generator 3. input counters 9 and 1 9 pulses from one -1Synch1 1 and counters 9 and 1 9 are not filled. In the event of failure of one of the outputs of the generator 3 with a higher ;; the frequencies of the pulses from the output of the AND 8 unit stop the flow, the counting 1. 9 is filled with the pulse .. n, the post: ayuTs1% and from the input of the element OR 25, and on the counter of the counter 20 a fourth PCT appears, which sets the trigger to one The third bit of the 2 O counter and at zero state are the triggers of the first and second bits. In this case, the switch guitar 4 turns off the power to the entire device. o p Nf u l o o r e A redundant generator containing primary and backup channels, each of which includes a generator, whose input is connected to the output of a generator power supply switch, low-input OR elements connected to the outputs of the multi-input And inputs, connected to the output of the imp impers counter input, which means that, in order to increase reliability and accuracy; redundant generator operation; An additional counter, pulses, control counter, control keys are entered into it. each of which is turned on correspondingly between one of the generator outputs of the main and backup channels and the input of the nio-input element: ORT, control keys, additional OR element and additional AND element, the first input of the additional counter connected to the first input, and the output pulse counter connected to the input of the control counter, zero and single outputs of which bits are connected to the inputs of the generator power switch, single outputs of the first and second bits of the control counter The terminals are connected to an additional AND element, the output of which is connected with the enabling inputs of the control and monitoring keys of the main channel, and the zero inputs of the first and second bits of the control counter are connected to the enabling inputs of the control keys and the reserve monitoring. channels, one of the outputs of each of the generators of the main and backup channels through the key control and an additional element OR is connected to the second inputs of the main and additional pulse counters.

Sources of information taken into consideration during the examination:

1. Avt.Sv. USSR № 341141, M.cl, H 03 K 1/00 from 19.1O.70 g. (Prototype).