CN210074863U - Redundant electrical power generating system of frame-type instrument - Google Patents
Redundant electrical power generating system of frame-type instrument Download PDFInfo
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- CN210074863U CN210074863U CN201920549718.4U CN201920549718U CN210074863U CN 210074863 U CN210074863 U CN 210074863U CN 201920549718 U CN201920549718 U CN 201920549718U CN 210074863 U CN210074863 U CN 210074863U
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Abstract
The utility model discloses a frame-type instrument redundant power supply system, which comprises a power supply management component and at least three parallel power supply modules, wherein the output ends of the power supply modules are connected with a power bus of an instrument; each power supply module is also provided with a signal acquisition end and a control end; the power supply management assembly comprises a signal acquisition module, a signal processing module and a power supply switching module, the signal acquisition module is connected with the signal acquisition end, the output end of the signal acquisition module is connected with the input end of the signal processing module, the output end of the signal processing module is connected with the input end of the power supply switching module, and the output end of the power supply switching module is connected with the control end. The utility model monitors the power module in real time and judges the working state of the power module; when the output of the power supply module begins to decline, the sampling speed is accelerated, and when the voltage declines to a limit value, the signal processing module sends an instruction to control the power supply switching module to carry out rapid switching output of the power supply, so that seamless switching is realized.
Description
Technical Field
The utility model relates to a frame-type instrument technical field, concretely relates to redundant electrical power generating system of frame-type instrument.
Background
In the prior art, a frame type instrument is applied to important occasions and needs two paths of power supply, so that the safe operation of the instrument is improved. When the power supply of the dual-power-supply switching equipment is switched, the switching response time is available, and the shorter the response time is, the more expensive the price is; meanwhile, the instantaneous current generated in the power supply switching process can impact the instrument to a certain extent, and the measurement of the instrument is influenced.
Disclosure of Invention
An object of the utility model is to overcome the defect that exists among the prior art, provide a simple structure, can the output of fast switch over other power module, realize the redundant electrical power generating system of frame-type instrument that seamless switched over.
In order to achieve the purpose, the technical scheme of the utility model is to design a frame-type instrument redundant power supply system, which comprises a power supply management component and at least three power supply modules connected in parallel, wherein the output ends of the power supply modules are all connected to the same power supply bus, and the power supply bus is connected with the power supply input end of the frame-type instrument; each power supply module is also provided with a signal acquisition end and a control end for receiving an external control signal; the power management assembly comprises a signal acquisition module, a signal processing module and a power switching module, wherein the input end of the signal acquisition module is connected with the signal acquisition end, the output end of the signal acquisition module is connected with the input end of the signal processing module, the output end of the signal processing module is connected with the input end of the power switching module, and the output end of the power switching module is connected with the control end. The utility model discloses a redundant electrical power generating system of frame-type instrument can dispose 3 at least parallelly connected power module of way simultaneously, and each power module all is an independent power supply structure, and the same power bus is all connected to all power module's output, and this power bus is connected with frame-type instrument, and such connected mode makes a plurality of power modules both can be simultaneously for the instrument power supply, can also a power module alone supplies power to the instrument; when one power supply module fails, the rest power supply modules cannot supply power independently, and a redundant standby power supply is arranged, so that the power supply of the instrument power supply is further ensured; the signal acquisition module can monitor each power supply module which supplies power simultaneously in real time, and can also monitor the power supply modules which work independently in real time, acquire data such as output voltage and current of the power supply modules and judge whether the power supply modules work normally; when the output of the power supply module begins to decline, the sampling speed is accelerated, and when the voltage declines to a limit value, the signal processing module sends an instruction to control the power supply switching module to carry out rapid switching output of the power supply, so that seamless switching is realized.
When a plurality of power modules supply power simultaneously, the preferred technical scheme is that the output end of the signal processing module is connected with the control end of the power module. The signal acquisition module monitors each power supply module which supplies power simultaneously in real time, when the output voltage of one power supply module abnormally drops to a preset value, the signal processing module sends a control signal to cut off the connection between the output end of the power supply module and a power bus, and the rest power supply modules are adopted for power supply output, so that the power supply modules are switched without supplying power, and the influence of current impact generated by power supply switching on an instrument is avoided; after the power module is cleared of faults, the signal acquisition module acquires and processes signals of the power module, and if the voltage of the power module is found to be recovered to be normal, the signal processing module sends out a control signal to connect the output end of the power module with a power bus and recover power supply.
The preferable technical scheme is that the signal acquisition module is also connected with the frame type instrument. The signal acquisition module also acquires parameters such as equipment operating voltage, current and the like in real time, and the signal processing module judges the equipment output power and adjusts the power supply quantity of the power supply module, so that the equipment load capacity is ensured.
According to a further preferable technical scheme, a signal amplifier is arranged on a circuit connected between the signal acquisition module and the signal acquisition end and between the signal acquisition module and the frame-type instrument. The signal amplifier improves the electric signal intensity of the power module and the instrument, is convenient for signal acquisition and real-time monitoring of the signal acquisition module, reduces signal acquisition errors and improves the accuracy of real-time monitoring.
A further preferred technical scheme is that a voltage follower is arranged on a circuit connecting the output end of the power supply module and the power supply bus. The voltage follower carries out voltage stabilization processing to the voltage of power module output, improves the quality of power module to the instrument power supply, and then has ensured the accuracy that the instrument shows, has improved the life of instrument simultaneously.
According to a further preferred technical scheme, the power module is further provided with an alarm, and the alarm is connected with the signal processing module. After the output of the power supply module is switched, the signal processing module sends out an alarm signal to control an alarm on the fault power supply to light up or send out a sound to prompt a user to maintain the fault power supply module.
The further preferred technical scheme is that the input end of the power supply module is connected with an alternating current 220V power supply, and the output end of the power supply module is a direct current 24V.
The further preferable technical scheme is that the signal processing module part is a CPU processor, and the model of the CPU processor is ATmega 16.
According to a further preferred technical scheme, the power supply switching module is a photoelectric coupler, the control end is a relay, the input end of the photoelectric coupler is connected with the output end of the signal processing module, the output end of the photoelectric coupler is connected with the input end of the relay, and the output end of the relay is connected with the power supply output end of the power supply module.
The utility model has the advantages and the beneficial effects that: the frame-type instrument redundant power supply system has the characteristics of simple structure, capability of rapidly switching the output of other power supply modules and realization of seamless switching; by simultaneously configuring at least 3 paths of power supply modules, when one power supply module fails, the rest power supply modules cannot independently supply power, and a redundant standby power supply is also arranged, so that the power supply of the instrument power supply is further ensured; the signal acquisition module and the signal processing module jointly monitor the working performance of each power supply module in real time, and judge whether the power supply module works normally or not by acquiring data such as output voltage, current and the like of the power supply module; when the output of the power supply module begins to drop, the sampling speed is increased, and when the voltage drops to a limit value, the signal processing module sends an instruction to control the power supply switching module to carry out rapid switching output of the power supply, so that seamless switching is realized; the signal processing module is independently connected with the power supply module, the signal acquisition module monitors all power supply modules supplying power simultaneously in real time, when the output voltage of one power supply module abnormally drops to a preset value, the signal processing module sends a control signal to cut off the connection between the output end of the power supply module and a power bus, and the rest power supply modules are adopted for power supply output, so that the non-switching of the power supply modules is realized, and the influence of current impact generated by power supply switching on the instrument is avoided; after the power module is cleared of faults, the signal acquisition module acquires and processes signals of the power module, and if the voltage of the power module is found to be recovered to be normal, the signal processing module sends out a control signal to connect the output end of the power module with a power bus and recover power supply; the signal acquisition module also acquires parameters such as equipment operating voltage, current and the like in real time, and the signal processing module judges the equipment output power and adjusts the power supply quantity of the power supply module to ensure the equipment load capacity; the voltage follower carries out voltage stabilization processing to the voltage of power module output, improves the quality of power module to the instrument power supply, and then has ensured the accuracy that the instrument shows, has improved the life of instrument simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of a frame-type instrument redundant power supply system of the present invention;
fig. 2 is a circuit diagram of the power switching module of the present invention;
fig. 3 is a circuit diagram of the power signal acquisition circuit of the present invention.
In the figure: 1. a power supply module; 2. a power bus; 3. a frame-type instrument; 4. a signal acquisition module; 5. a signal processing module; 6. a signal amplifier; 7. a voltage follower; 8. a photoelectric coupler; 9. a relay.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1-3, the present invention relates to a redundant power supply system for frame-type instrument, which comprises a power management assembly and three parallel power modules 1, wherein the output ends of the three power modules are all connected to the same power bus 2, and the power bus is connected to the power input end of the frame-type instrument 3; each power supply module is also provided with a signal acquisition end and a control end for receiving an external control signal; the power management assembly comprises a signal acquisition module 4, a signal processing module 5 and a power switching module, wherein the input end of the signal acquisition module is connected with the signal acquisition end, the output end of the signal acquisition module is connected with the input end of the signal processing module, the output end of the signal processing module is connected with the input end of the power switching module, and the output end of the power switching module is connected with the control end.
And the output end of the signal processing module is connected with the control end of the power supply module.
The signal acquisition module is also connected with the frame type instrument.
And a signal amplifier 6 is arranged on a circuit connected between the signal acquisition module and the signal acquisition end and between the signal acquisition module and the frame-type instrument.
And a voltage follower 7 is arranged on a circuit connecting the output end of the power supply module with the power bus.
The input end of the power supply module is connected with an alternating current 220V power supply, and the output end of the power supply module is a direct current 24V.
The signal processing module part is a CPU processor, and the model of the CPU processor is ATmega 16.
The power supply switching module is a photoelectric coupler 8, the control end is a relay 9, the input end of the photoelectric coupler is connected with the output end of the signal processing module, the output end of the photoelectric coupler is connected with the input end of the relay, and the output end of the relay is connected with the power supply output end of the power supply module.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A redundant power supply system of a frame-type instrument is characterized by comprising a power supply management assembly and at least three power supply modules connected in parallel, wherein the output ends of the power supply modules are connected to the same power supply bus; each power supply module is also provided with a signal acquisition end and a control end for receiving an external control signal; the power management assembly comprises a signal acquisition module, a signal processing module and a power switching module, wherein the input end of the signal acquisition module is connected with the signal acquisition end, the output end of the signal acquisition module is connected with the input end of the signal processing module, the output end of the signal processing module is connected with the input end of the power switching module, and the output end of the power switching module is connected with the control end.
2. A frame-type meter redundant power supply system according to claim 1, wherein an output of said signal processing module is connected to a control of said power module.
3. A frame gauge redundant power supply system according to claim 2, wherein said signal collection module is further connected to said frame gauge.
4. A frame instrument redundant power supply system according to claim 3 wherein a signal amplifier is provided on the circuit connecting the signal acquisition module with the signal acquisition terminal and the frame instrument.
5. A frame-type instrument redundant power supply system according to claim 4, wherein a voltage follower is provided on a circuit connecting the output of the power supply module with the power bus.
6. A frame-type instrument redundant power supply system according to claim 5, wherein an alarm is further disposed on the power supply module, and the alarm is connected with the signal processing module.
7. A frame-type meter redundant power supply system according to claim 6, wherein the input end of the power supply module is connected with an AC 220V power supply, and the output end of the power supply module is connected with a DC 24V power supply.
8. A framed meter redundant power supply system according to claim 7, wherein said signal processing module is a CPU processor, said CPU processor being of the model number ATmega 16.
9. A frame-type instrument redundant power supply system according to any one of claims 1-8, wherein the power switching module is a photo coupler, the control terminal is a relay, an input terminal of the photo coupler is connected to an output terminal of the signal processing module, an output terminal of the photo coupler is connected to an input terminal of the relay, and an output terminal of the relay is connected to a power output terminal of the power module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920549718.4U CN210074863U (en) | 2019-04-22 | 2019-04-22 | Redundant electrical power generating system of frame-type instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920549718.4U CN210074863U (en) | 2019-04-22 | 2019-04-22 | Redundant electrical power generating system of frame-type instrument |
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| Publication Number | Publication Date |
|---|---|
| CN210074863U true CN210074863U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920549718.4U Active CN210074863U (en) | 2019-04-22 | 2019-04-22 | Redundant electrical power generating system of frame-type instrument |
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| Country | Link |
|---|---|
| CN (1) | CN210074863U (en) |
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- 2019-04-22 CN CN201920549718.4U patent/CN210074863U/en active Active
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