CN216927435U - Power-loss automatic alarm closing mechanism for power plant control system - Google Patents
Power-loss automatic alarm closing mechanism for power plant control system Download PDFInfo
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- CN216927435U CN216927435U CN202220531716.4U CN202220531716U CN216927435U CN 216927435 U CN216927435 U CN 216927435U CN 202220531716 U CN202220531716 U CN 202220531716U CN 216927435 U CN216927435 U CN 216927435U
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Abstract
The utility model discloses an automatic power-loss alarm closing mechanism of a power plant control system, which comprises a three-phase high-voltage power supply M, wherein the output end of the three-phase high-voltage power supply M is electrically connected with one end of a first switch S1, one end of a second switch S2 and one end of a third switch S3, the other end of the second switch S2 is electrically connected with the first input end of a transformer T, the transformer T is a three-phase transformer, the second input end of the transformer T is electrically connected with one end of a resistor R1, the other end of the resistor R1 is electrically connected with the other end of the first switch S1, the first output end of the transformer T is electrically connected with a pin 1 of a rectifier bridge U, and a pin 3 of the rectifier bridge U is electrically connected with the second output end of the transformer T. The voltage regulating module is used for regulating the voltage in the circuit, so that the voltage value input by the power supply end of the control system is stabilized at the set voltage value, and the normal operation of the load controlled by the control system is ensured.
Description
Technical Field
The utility model relates to the technical field of automatic alarm closing mechanisms, in particular to an automatic alarm closing mechanism for power loss of a power plant control system.
Background
In many important devices of a power supply network, a power plant control system is a core control device of a whole set of power supply network, the power loss of the power supply network can seriously affect the life of people and cause huge loss for industrial and agricultural production, in order to ensure the safe operation of the power supply network, a power plant often needs to detect and predict whether the power loss of the power supply network is caused in real time, especially, the power generating set and the power plant control system are precisely monitored, once the power supply network stops supplying power due to faults, a power loss alarm device can send an alarm signal, so that a worker can timely take corresponding measures to recover the power supply of the power supply network as soon as possible, for example, the application number: 201710286658.7, discloses a power plant control system with power failure alarm, which comprises a transformer, a rectifier bridge, a power plant control system, a UPS power supply and an alarm module, wherein the primary side of the transformer is connected to a three-phase high voltage power supply M of the power plant, the secondary output end of the transformer is connected with two diagonal input ends of the rectifier bridge, the two diagonal output ends of the rectifier bridge are connected with the power plant control system, the power plant control system is further connected with the alarm module, the UPS power supply provides power for the power plant control system and the alarm module, the power plant control system with power failure alarm has simple structure and is directly incorporated into the power plant control system, thus having better pertinence;
the power-off alarm system of above-mentioned patent can realize the automatic function of in time reporting to the police when losing the power, but it still has some not enoughly, and it does not have the automatic voltage to in the circuit and detects and the pressure regulating function for control system's input voltage also fluctuates thereupon, and then influences the normal operating of load, can not satisfy the use, and consequently we have proposed a power plant control system loses the power automatic alarm and close mechanism and be used for solving above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art, and provides an automatic power-loss alarm closing mechanism for a power plant control system.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a power-loss automatic alarm closing mechanism of a power plant control system comprises a three-phase high-voltage power supply M, wherein the output end of the three-phase high-voltage power supply M is electrically connected with one end of a first switch S1, one end of a second switch S2 and one end of a third switch S3, the other end of the second switch S2 is electrically connected with a first input end of a transformer T, a second input end of the transformer T is electrically connected with one end of a resistor R1, the other end of the resistor R1 is electrically connected with the other end of the first switch S1, the first output end of the transformer T is electrically connected with a pin 1 of a rectifier bridge U, a pin 3 of the rectifier bridge U is electrically connected with a second output end of the transformer T, a pin 2 of the rectifier bridge U is electrically connected with a control system, a pin 4 of the rectifier bridge U is electrically connected with an input end of a voltage regulating module, and the output end of the voltage regulating module is electrically connected with a power supply end of the control system, the control end electric connection of pressure regulating module has detection module, and detection module's sense terminal and control system's feed end electric connection, detection module's output and three-phase high voltage power supply M's input electric connection, control system electric connection has alarm module, and alarm module electric connection has the UPS power, UPS power and control system electric connection.
Preferably, the voltage regulating module includes a resistor R2 electrically connected to the pin 4 of the rectifier bridge U, the resistor R2 is electrically connected to a first fixed end of an electronic control switch S5, a first movable end of the electronic control switch S5 is electrically connected to one end of a resistor R3, another end of the resistor R3 is electrically connected to a first fixed end of the electronic control switch S6, a first movable end of the electronic control switch S6 is electrically connected to one end of a resistor R4, another end of the resistor R4 is electrically connected to a first fixed end of an electronic control switch S7, a first movable end of the electronic control switch S7 is electrically connected to one end of a resistor R5, another end of the resistor R5 is grounded, a second movable end of the electronic control switch S5, a second movable end of the electronic control switch S6 and a second movable end of the electronic control switch S7 are electrically connected to one end of the same electronic control switch S4, another end of the electronic control switch S4 is electrically connected to a power supply terminal of the control system, the first movable end of the electronic control switch S5 is electrically connected to the first fixed end of the electronic control switch S5, the second movable end of the electrical switch S6 is communicated with the first fixed end of the electrical switch S6, and the first movable end of the electrical switch S7 is communicated with the first fixed end of the electrical switch S7.
Preferably, the detection module includes a sliding resistor R6, one end of the sliding resistor R6 is electrically connected to a high level VCC, the other end of the sliding resistor R6 is electrically connected to one end of a resistor R7, the movable end of the sliding resistor R6 and the pin 3 of the voltage comparison chip Q, the other end of the resistor R7 is grounded, the pin 2 of the voltage comparison chip Q is electrically connected to the power supply end of the control system, the pin 1 of the voltage comparison chip Q is electrically connected to the processing chip, the output end of the processing chip is respectively electrically connected to the control end of the electronic control switch S4, the control end of the electronic control switch S5, the control end of the electronic control switch S6 and the control end of the electronic control switch S7.
Preferably, the alarm module comprises a light emitting diode, a buzzer and a telephone alarm control module.
Preferably, the control system comprises an arithmetic chip and a storage chip.
Preferably, the transformer T is a three-phase transformer.
Compared with the prior art, the utility model has the beneficial effects that:
the voltage regulating module is used for regulating the voltage in the circuit, so that the voltage value input by the power supply end of the control system is stabilized at the set voltage value, and the normal operation of the load controlled by the control system is ensured.
Drawings
FIG. 1 is a circuit diagram of a power plant control system power loss automatic alarm shutdown mechanism proposed in the prior art;
FIG. 2 is a circuit diagram of an automatic alarm shutdown mechanism for power loss of a power plant control system according to the present invention;
fig. 3 is a circuit diagram of the connection between the voltage regulating module and the detecting module of the power loss automatic alarm closing mechanism of the power plant control system provided by the utility model.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 2-3, an automatic alarm shutdown mechanism for power loss of a power plant control system comprises a three-phase high-voltage power supply M, an output end of the three-phase high-voltage power supply M is electrically connected with one end of a first switch S1, one end of a second switch S2 and one end of a third switch S3, the other end of the second switch S2 is electrically connected with a first input end of a transformer T, the transformer T is a three-phase transformer, a second input end of the transformer T is electrically connected with one end of a resistor R1, the other end of the resistor R1 is electrically connected with the other end of the first switch S1, a first output end of the transformer T is electrically connected with a pin 1 of a rectifier bridge U, a pin 3 of the rectifier bridge U is electrically connected with a second output end of the transformer T, a pin 2 of the rectifier bridge U is electrically connected with a control system, the control system comprises an operation chip and a storage chip, a pin 4 of the rectifier bridge U is electrically connected with an input end of a voltage regulation module, the output end of the voltage regulating module is electrically connected with the power supply end of the control system, the control end of the voltage regulating module is electrically connected with the detection module, the detection end of the detection module is electrically connected with the power supply end of the control system, the output end of the detection module is electrically connected with the input end of the three-phase high-voltage power supply M, the control system is electrically connected with the alarm module, the alarm module is electrically connected with a UPS (uninterrupted power supply), the UPS is electrically connected with the control system, and the alarm module comprises a light emitting diode, a buzzer and a telephone alarm control module;
the voltage regulating module comprises a resistor R2 electrically connected with a pin 4 of the rectifier bridge U, a resistor R2 is electrically connected with a first fixed end of an electronic control switch S5, a first movable end of the electronic control switch S5 is electrically connected with one end of a resistor R3, the other end of a resistor R3 is electrically connected with a first fixed end of the electronic control switch S6, a first movable end of the electronic control switch S6 is electrically connected with one end of a resistor R4, the other end of the resistor R4 is electrically connected with a first fixed end of an electronic control switch S7, a first movable end of the electronic control switch S7 is electrically connected with one end of a resistor R5, the other end of the resistor R5 is grounded, a second movable end of the electronic control switch S5, a second movable end of the electronic control switch S6 and a second movable end of the electronic control switch S7 are electrically connected with one end of the same electronic control switch S4, the other end of the electronic control switch S4 is electrically connected with a power supply end of the control system, the first movable end of the switch S5 is communicated with the first fixed end of the electronic control switch S5, the second movable end of the electric control switch S6 is communicated with the first fixed end of the electric control switch S6, and the first movable end of the electric control switch S7 is communicated with the first fixed end of the electric control switch S7;
the detection module comprises a sliding resistor R6, one end of a sliding resistor R6 is electrically connected with a high-level VCC, the other end of the sliding resistor R6 is electrically connected with one end of a resistor R7, the movable end of a sliding resistor R6 and a pin 3 of a voltage comparison chip Q, the other end of the resistor R7 is grounded, a pin 2 of the voltage comparison chip Q is electrically connected with a power supply end of a control system, a pin 1 of the voltage comparison chip Q is electrically connected with a processing chip, the output end of the processing chip is respectively electrically connected with a control end of an electric control switch S4, a control end of an electric control switch S5, a control end of the electric control switch S6 and a control end of the electric control switch S7, the voltage detection module is used for adjusting the voltage in a circuit, the voltage value input by the power supply end of the control system is stabilized at the set voltage value, and the normal operation of the load controlled by the control system is ensured.
The working principle is as follows: when the voltage regulating module is used, the high-level VCC provides a reference comparison voltage value for a pin 3 of the voltage comparison chip Q through the matching of the sliding resistor R6 and the resistor R7, the voltage of the power supply end of the control system is sent to a pin 2 of the voltage comparison chip Q, the voltage comparison chip Q compares the voltage received by the pin 2 with the reference comparison voltage value on the pin 3, the voltage comparison chip Q sends a result to the processing chip, and the processing chip controls the electric control switch S5, the electric control switch S6 and the electric control switch S7 according to the result sent by the voltage comparison chip Q, so that the voltage divided by the voltage regulating module is changed, the voltage value input by the power supply end of the control system is further ensured to be stabilized at a set voltage value, and the normal operation of a load controlled by the control system is ensured.
In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. A power-loss automatic alarm closing mechanism of a power plant control system comprises a three-phase high-voltage power supply M and is characterized in that the output end of the three-phase high-voltage power supply M is electrically connected with one end of a first switch S1, one end of a second switch S2 and one end of a third switch S3, the other end of the second switch S2 is electrically connected with the first input end of a transformer T, the second input end of the transformer T is electrically connected with one end of a resistor R1, the other end of the resistor R1 is electrically connected with the other end of the first switch S1, the first output end of the transformer T is electrically connected with a pin 1 of a rectifier bridge U, a pin 3 of the rectifier bridge U is electrically connected with the second output end of the transformer T, a pin 2 of the rectifier bridge U is electrically connected with a control system, a pin 4 of the rectifier bridge U is electrically connected with the input end of a voltage regulating module, and the output end of the voltage regulating module is electrically connected with the power supply end of the control system, the control end electric connection of pressure regulating module has detection module, and detection module's sense terminal and control system's feed end electric connection, detection module's output and three-phase high voltage power supply M's input electric connection, control system electric connection has alarm module, and alarm module electric connection has the UPS power, UPS power and control system electric connection.
2. The power plant control system power loss automatic alarm closing mechanism of claim 1, wherein the voltage regulating module comprises a resistor R2 electrically connected to pin 4 of the rectifier bridge, the resistor R2 is electrically connected to a first fixed end of an electric control switch S5, a first movable end of the electric control switch S5 is electrically connected to one end of a resistor R3, the other end of the resistor R3 is electrically connected to a first fixed end of the electric control switch S6, a first movable end of the electric control switch S6 is electrically connected to one end of the resistor R4, the other end of the resistor R4 is electrically connected to a first fixed end of the electric control switch S7, a first movable end of the electric control switch S7 is electrically connected to one end of a resistor R5, the other end of the resistor R5 is grounded, a second movable end of the electric control switch S5, a second movable end of the electric control switch S6 and a second movable end of the electric control switch S7 are electrically connected to one end of the same switch S4, the other end of the electric control switch S4 is electrically connected with the power supply end of the control system, the first movable end of the electric control switch S5 is communicated with the first fixed end of the electric control switch S5, the second movable end of the electric control switch S6 is communicated with the first fixed end of the electric control switch S6, and the first movable end of the electric control switch S7 is communicated with the first fixed end of the electric control switch S7.
3. The power plant control system power loss automatic alarm closing mechanism of claim 1, wherein the detection module comprises a sliding resistor R6, one end of the sliding resistor R6 is electrically connected with a high-level VCC, the other end of the sliding resistor R6 is electrically connected with one end of a resistor R7, the movable end of the sliding resistor R6 and a pin 3 of a voltage comparison chip Q, the other end of the resistor R7 is grounded, a pin 2 of the voltage comparison chip Q is electrically connected with a power supply end of the control system, a pin 1 of the voltage comparison chip Q is electrically connected with a processing chip, and an output end of the processing chip is electrically connected with a control end of the electronic control switch S4, a control end of the electronic control switch S5, a control end of the electronic control switch S6 and a control end of the electronic control switch S7 respectively.
4. The power plant control system power loss automatic alarm closing mechanism according to claim 1, wherein the alarm module comprises a light emitting diode, a buzzer and a telephone alarm control module.
5. The power plant control system power loss automatic alarm shutdown mechanism of claim 1, wherein the control system comprises an arithmetic chip and a storage chip.
6. The power plant control system power loss automatic alarm shutdown mechanism of claim 1, wherein the transformer T is a three-phase transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220531716.4U CN216927435U (en) | 2022-03-11 | 2022-03-11 | Power-loss automatic alarm closing mechanism for power plant control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220531716.4U CN216927435U (en) | 2022-03-11 | 2022-03-11 | Power-loss automatic alarm closing mechanism for power plant control system |
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| Publication Number | Publication Date |
|---|---|
| CN216927435U true CN216927435U (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220531716.4U Expired - Fee Related CN216927435U (en) | 2022-03-11 | 2022-03-11 | Power-loss automatic alarm closing mechanism for power plant control system |
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| Country | Link |
|---|---|
| CN (1) | CN216927435U (en) |
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- 2022-03-11 CN CN202220531716.4U patent/CN216927435U/en not_active Expired - Fee Related
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