CN216252267U - Power monitoring and automatic switching system of dynamic test equipment - Google Patents
Power monitoring and automatic switching system of dynamic test equipment Download PDFInfo
- Publication number
- CN216252267U CN216252267U CN202122898589.XU CN202122898589U CN216252267U CN 216252267 U CN216252267 U CN 216252267U CN 202122898589 U CN202122898589 U CN 202122898589U CN 216252267 U CN216252267 U CN 216252267U
- Authority
- CN
- China
- Prior art keywords
- module
- power supply
- current power
- input end
- alternating current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
The utility model provides a power monitoring and automatic switching system of dynamic test equipment, which comprises an alternating current power supply module, a direct current power supply module, a storage battery module, a super capacitor module, a detection module and a control module, wherein the alternating current power supply module is connected with the direct current power supply module; the alternating current power supply module is a main power supply, the input end of the alternating current power supply module is connected with an external alternating current power supply, and the output end of the alternating current power supply module supplies power to the first input end of the control module through the UPS; the direct current power supply module is a first auxiliary power supply; the storage battery module is a second secondary power supply; the super capacitor module is a third auxiliary power supply; the input end of the detection module is respectively connected with the alternating current power supply module, the direct current power supply module and the storage battery module, and the output end of the detection module is connected with the fifth input end of the control module. The utility model has various emergency power supply modules, simple and easy realization of power supply switching, high reliability and suitability for dangerous occasions such as explosion tests and the like.
Description
Technical Field
The utility model relates to an emergency power supply technology, in particular to an emergency power supply technology of dynamic test equipment, and specifically relates to a power supply monitoring and automatic switching system of the dynamic test equipment.
Background
Generally speaking, tests for dynamic tests, especially transient tests, have the characteristics of high cost, single test, unrepeatability, harsh test environment and the like, dynamic test equipment can often work in extremely severe environments such as strong impact, strong air shock waves, strong electromagnetic interference, high harmful products and the like, key modules of test systems such as power supply lines and the like are all in severe environments, the risk of destruction is high, once the test systems are powered down, test process data cannot be recovered, and the loss is very disastrous. Therefore, the dynamic test equipment is required to be capable of supplying power continuously and stably in the working process so as to ensure that the test system can still normally acquire effective data when an accident occurs in the test process. At present, in the prior art, a group of standby power supplies are generally designed, and then a power supply switching circuit is designed between the two power supplies, but the design is not suitable for dynamic acquisition equipment working in a severe environment; firstly, a main power supply and a standby power supply are external power supplies, and the problems that the main power supply and the standby power supply are loosened at the same time due to strong impact vibration and the like exist, so that normal power supply cannot be realized; secondly, strong electromagnetic interference exists in a test environment, and an overshoot or undershoot non-ideal signal generated by a power supply voltage signal due to instability exists in the switching process of a common power supply switching circuit, so that interference is caused to a system; in addition, there may be high and low voltage series flow, causing damage to the power supply.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide a power supply monitoring and automatic switching system of dynamic test equipment with high reliability, and solves the problems that the dynamic test equipment is suddenly powered off and data is easily lost under severe conditions. In the technical scheme of the utility model, when power is occasionally cut off, equipment power supply can be rapidly switched among a plurality of power supplies with different properties according to different power supply priority levels of the power supplies, and when the power supply with high priority level fails or is separated, the power supply is automatically switched to the next power supply; the utility model is suitable for measuring dynamic parameters in the occasions with complex field conditions, severe environments and the like, and can improve the reliability of the power supply testing; the system has the advantages of expandability, energy conservation, environmental protection, high stability, high reliability and the like.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a power monitoring and automatic switching system of dynamic test equipment comprises an alternating current power supply module, a direct current power supply module, a storage battery module, a super capacitor module, a detection module and a control module;
the alternating current power supply module is a main power supply, the input end of the alternating current power supply module is connected with an external alternating current power supply, and the output end of the alternating current power supply module supplies power to the first input end of the control module through the UPS;
the direct current power supply module is a first secondary power supply and is used as the redundancy of the main power supply module after failure, the input end of the direct current power supply module is connected with an external direct current power supply, and the output end of the direct current power supply module is connected with the second input end of the control module;
the storage battery module is a second auxiliary power supply and used as the redundancy of the first auxiliary power supply after the fault, the input end of the storage battery module is connected with the third output end of the control module through a charging circuit A, and the output end of the storage battery module is connected with the third input end of the control module through a discharging circuit A;
the super capacitor module is a third auxiliary power supply and used as the post-fault redundancy of the second auxiliary power supply, the input end of the super capacitor module is connected with the fourth output end of the control module through a charging circuit B, and the output end of the super capacitor module is connected with the fourth input end of the control module through a discharging circuit B;
the input end of the detection module is respectively connected with the alternating current power supply module, the direct current power supply module and the storage battery module, the output end of the detection module is connected with the fifth input end of the control module, and the detection module is used for detecting the output voltage or current connected with the alternating current power supply module, the direct current power supply module and the storage battery module and transmitting the obtained information to the control module; the control module is also provided with a fifth output end for supplying power to the equipment, and the control module sequentially selects and switches power supplies among the first input end, the second input end, the third input end and the fourth input end according to the information obtained by the detection module and then outputs the power supply to the equipment through the fifth output end.
The input end of the alternating current power supply module is a strong current input interface, and the number of the input ends is multiple.
The input end of the direct current power supply module is a weak current input interface, and the number of the input ends is multiple.
The control module comprises a processor, an A/D conversion submodule and a power supply switching execution submodule, wherein the A/D conversion submodule is used for converting analog information obtained by the detection module into digital information; the power supply switching execution submodule is used for executing switching between power supplies.
The alternating current power supply module, the direct current power supply module, the storage battery module, the super capacitor module, the detection module and the control module are all fixedly arranged in the dynamic test equipment.
Compared with the prior art, the utility model has the beneficial effects that: the utility model has various emergency power supply modules, simple and easy realization of power supply switching, low cost, small volume and high reliability, and is suitable for dangerous occasions such as explosion tests and the like.
Drawings
FIG. 1 is a block diagram of the system architecture of the present invention.
Fig. 2 is an architecture diagram of the control module.
In the figure: 1. alternating current power supply module, 2, direct current power supply module, 3, battery module, 4, super capacitor module, 5, detection module, 6, control module, 7, UPS, 11, charging line A, 12, discharge line A, 15, charging line B, 16, discharge line B.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a power monitoring and automatic switching system of a dynamic test device includes an ac power module 1, a dc power module 2, a storage battery module 3, a super capacitor module 4, a detection module 5, and a control module 6; the alternating current power supply module 1 is a main power supply, the input end of the alternating current power supply module is connected with an external alternating current power supply, and the output end of the alternating current power supply module supplies power to the first input end of the control module 6 through the UPS 7; the input end of the alternating current power supply module 1 is a strong current 22V input interface, the number of the input ends is multiple, and a plurality of external alternating current power supplies can be selected according to the situation; after the external alternating current is converted into weak current, the weak current is converted into weak current through the UPS7 and is input to a first input end of the control module 6;
the direct-current power supply module 2 is a first secondary power supply and is used as the redundancy of the main power supply 1 after the fault, the input end of the direct-current power supply module 2 is connected with an external direct-current power supply, and the output end of the direct-current power supply module is connected with the second input end of the control module 6; the input end of the direct current power supply module 2 is a weak current 12V input interface, the number of the input ends is multiple, and a plurality of external direct current power supplies can be adopted;
the storage battery module 3 is a second secondary power supply and used as the redundancy of the first secondary power supply after the fault, the input end of the storage battery module 3 is connected with the third output end of the control module 6 through a charging line A11 and is charged by the control module, and the output end of the storage battery module 3 is connected with the third input end of the control module 6 through a discharging line A12; in one embodiment of the present invention, the battery module 3 is a lithium battery, and the battery can work for more than ten minutes when being discharged under normal conditions.
The super capacitor module 4 is a third secondary power supply and is used as the redundancy of the second secondary power supply after the fault, the input end of the super capacitor module 4 is connected with the fourth output end of the control module 6 through a charging line B15, and the output end of the super capacitor module 4 is connected with the fourth input end of the control module 6 through a discharging line B16; in general, the emergency power supply can be carried out for more than 30 s;
the input end of the detection module 5 is respectively connected with the alternating current power supply module 1, the direct current power supply module 2 and the storage battery module 3, the output end of the detection module 5 is connected with the fifth input end of the control module 6, and the detection module 5 is used for detecting the output voltage or current of the alternating current power supply module 1, the direct current power supply module 2 and the storage battery module 3 and transmitting the obtained information to the control module 6; the control module 6 is further provided with a fifth output end for supplying power to the equipment, and the control module 6 sequentially selects and switches power among the first input end, the second input end, the third input end and the fourth input end according to the information obtained by the detection module 5, and then outputs and supplies power to the equipment through the fifth output end.
Specifically, in the prior art, for example, a computer basically has only one UPS, the present invention is different from the prior art in that a plurality of power supplies are added in addition to the UPS, and whether switching to another power supply is required is determined by detecting the voltage or current entering the UPS.
In the utility model, the switching between the power supplies follows the following steps and strategies:
the method comprises the following steps: under the normal working condition of the equipment, the alternating current power supply module 1 supplies power to the equipment through the UPS, and the detection module 5 monitors a voltage or current signal output by the alternating current power supply module 1 in real time; the control module 6 cuts off the output of the direct current power supply module 2, the storage battery module 3 and the super capacitor module 4;
step two: when the detection module 5 detects that the voltage or current signal output by the alternating current power supply module 1 is abnormal, the control module 6 cuts off the input of the alternating current power supply module 1 according to a preset power supply switching strategy, switches the input into the direct current power supply module 2, and simultaneously indicates the detection module 5 to detect the output voltage or current signal of the direct current power supply module 2 in real time;
step three: when the detection module 5 detects that the output voltage or current signal of the direct current power supply module 2 is abnormal, the synchronization step two is to switch to the storage battery module 3 for power supply; when the detection module 5 detects that the output voltage or current of the storage battery module 3 is abnormal, the control module 6 converts the super capacitor in the charging state into the discharging state when the interior of the device normally works.
As shown in fig. 2, the control module 6 includes a processor 60, an a/D conversion sub-module 61 and a power switching execution sub-module 62, where the a/D conversion sub-module 61 is configured to convert analog information obtained by the detection module 5 into digital information; the power supply switching execution sub-module 62 is used for executing switching between power supplies. In an embodiment of the present invention, the detection module performs synchronous sampling on the working power voltage by 200kSPS, converts the sampled voltage into a digital voltage signal through the a/D conversion sub-module 61, and sends the digital voltage signal to the processor, and after the processor analyzes the data, the processor instructs the power switching execution sub-module 62 to perform corresponding power switching according to a preset power switching policy.
The alternating current power supply module 1, the direct current power supply module 2, the storage battery module 3, the super capacitor module 4, the detection module 5 and the control module 6 are all fixedly arranged inside the dynamic test equipment. In one embodiment of the utility model, the dynamic test equipment is provided with an outer shell, and the modules are all arranged inside the outer shell.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
The present invention is not described in detail in the prior art.
Claims (5)
1. A power monitoring and automatic switching system of dynamic test equipment comprises an alternating current power module (1), a direct current power module (2), a storage battery module (3), a super capacitor module (4), a detection module (5) and a control module (6); the method is characterized in that:
the alternating current power supply module (1) is a main power supply, the input end of the alternating current power supply module is connected with an external alternating current power supply, and the output end of the alternating current power supply module supplies power to the first input end of the control module (6) through the UPS (7);
the direct-current power supply module (2) is a first secondary power supply and used as the redundancy of a main power supply after failure, the input end of the direct-current power supply module (2) is connected with an external direct-current power supply, and the output end of the direct-current power supply module is connected with the second input end of the control module (6);
the storage battery module (3) is a second auxiliary power supply and used as the redundancy of the first auxiliary power supply after the fault, the input end of the storage battery module (3) is connected with the third output end of the control module (6) through a charging line A (11), and the output end of the storage battery module (3) is connected with the third input end of the control module (6) through a discharging line A (12);
the super capacitor module (4) is a third auxiliary power supply and used as the redundancy of the second auxiliary power supply after the fault, the input end of the super capacitor module (4) is connected with the fourth output end of the control module (6) through a charging circuit B (15), and the output end of the super capacitor module (4) is connected with the fourth input end of the control module (6) through a discharging circuit B (16);
the input end of the detection module (5) is respectively connected with the alternating current power supply module (1), the direct current power supply module (2) and the storage battery module (3), the output end of the detection module is connected with the fifth input end of the control module (6), and the detection module (5) is used for detecting the output voltage or current connected with the alternating current power supply module (1), the direct current power supply module (2) and the storage battery module (3) and transmitting the obtained information to the control module (6); the control module (6) is also provided with a fifth output end for supplying power to the equipment, and the control module (6) selects and switches power supplies among the first input end, the second input end, the third input end and the fourth input end of the control module according to the information obtained by the detection module (5) and then outputs and supplies power to the equipment through the fifth output end.
2. The power monitoring and automatic switching system of dynamic test equipment of claim 1, wherein: the input end of the alternating current power supply module (1) is a strong current input interface, and the number of the input ends is multiple.
3. The power monitoring and automatic switching system of dynamic test equipment of claim 1, wherein: the input end of the direct current power supply module (2) is a weak current input interface, and the number of the input ends is multiple.
4. The power monitoring and automatic switching system of dynamic test equipment of claim 1, wherein: the control module (6) comprises a processor (60), an A/D conversion submodule (61) and a power supply switching execution submodule (62), wherein the A/D conversion submodule (61) is used for converting analog information obtained by the detection module (5) into digital information; the power supply switching execution submodule (62) is used for executing switching between power supplies.
5. The power monitoring and automatic switching system of dynamic test equipment of claim 1, wherein: the alternating current power supply module (1), the direct current power supply module (2), the storage battery module (3), the super capacitor module (4), the detection module (5) and the control module (6) are all fixedly arranged inside the dynamic test equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122898589.XU CN216252267U (en) | 2021-11-24 | 2021-11-24 | Power monitoring and automatic switching system of dynamic test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122898589.XU CN216252267U (en) | 2021-11-24 | 2021-11-24 | Power monitoring and automatic switching system of dynamic test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216252267U true CN216252267U (en) | 2022-04-08 |
Family
ID=80957381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122898589.XU Active CN216252267U (en) | 2021-11-24 | 2021-11-24 | Power monitoring and automatic switching system of dynamic test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216252267U (en) |
-
2021
- 2021-11-24 CN CN202122898589.XU patent/CN216252267U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102214945B (en) | Direct current power system based on paralleling connection of storage batteries | |
| EP2737328B1 (en) | Systems and apparatus for fault detection in dc power sources using ac residual current detection | |
| US20120283890A1 (en) | Control Apparatus for Micro-grid Connect/Disconnect from Grid | |
| US10503126B2 (en) | Access control method for parallel direct current power supplies and device thereof | |
| US9431853B2 (en) | Uninterruptible power system with backfeed detection and method of operating the same | |
| CN103487678B (en) | A kind of portable power module test macro and test method | |
| US20120205982A1 (en) | Uninterruptible power supply systems and methods using an isolated neutral reference | |
| US8928175B2 (en) | Junction box, energy system and method for controlling the same | |
| EP3923434B1 (en) | Energy storage system electric arc detection and protection method and related device | |
| KR20150115560A (en) | Energy storage system and controlling method the same | |
| CN211183525U (en) | AC/DC integrated UPS | |
| KR20190132855A (en) | Power conversion system connected grid for supporting grid | |
| CN109888805A (en) | Voltage sag protection system and method for frequency converter | |
| CN106602689B (en) | System for preventing direct-current power supply bus from losing voltage and operation method thereof | |
| CN102801204B (en) | A kind of 240VDC high voltage direct current electric power system and method | |
| CN216252267U (en) | Power monitoring and automatic switching system of dynamic test equipment | |
| CN112054569B (en) | High-reliability discharge output overvoltage protection circuit of spacecraft power supply system | |
| CN111342502B (en) | Forsmark effect suppression method and device based on bidirectional converter | |
| CN116742749A (en) | Energy storage system, energy storage converter and shutdown control method of energy storage system and energy storage converter | |
| CN103346612B (en) | 336VDC DC UPS system and method for supplying power to | |
| KR101417572B1 (en) | Energy storage system with function of uninterruptible power equipment | |
| CN113341214A (en) | Microprocessor power supply voltage monitoring system | |
| CN113193646A (en) | Power supply device, method and system | |
| Xiaofei et al. | How to ensure the modular UPS with high reliability | |
| CN110824377A (en) | Detection circuit of switching power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |