CN201608631U - Power unit direct voltage monitoring system used for high-voltage inverter - Google Patents
Power unit direct voltage monitoring system used for high-voltage inverter Download PDFInfo
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- CN201608631U CN201608631U CN2009202953035U CN200920295303U CN201608631U CN 201608631 U CN201608631 U CN 201608631U CN 2009202953035 U CN2009202953035 U CN 2009202953035U CN 200920295303 U CN200920295303 U CN 200920295303U CN 201608631 U CN201608631 U CN 201608631U
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Abstract
The utility model discloses a power unit direct voltage monitoring system used for a high-voltage inverter, relating to the technical field of high-voltage inverters. For the existing high-voltage inverter, the fault cause of the power unit in operation is difficultly judged, thus bringing trouble for the maintenance. The monitoring system comprises a comparison module, a judging module and a storage module, wherein the comparison module is connected with an information processing module and compares the real-time information of a detection module and the information processing module with a preset value so as to obtain a comparison value; the judging module is connected with the comparison module and used for receiving the comparison value to judge the real-time voltage state so as to decide data storage; and the storage module is connected with the judging module and the information processing module and used for storing the data of the information processing module. Through increasing the judging module and the comparison module, the system realizes the direct voltage dynamic monitoring, and real-time detection, display, record and fault information storage of the high-voltage inverter power unit, and is beneficial to the monitoring, maintenance and data management of operators.
Description
[technical field]
The utility model relates to a kind of power cell direct voltage supervising device that is used for high voltage converter, belongs to the high voltage converter technical field.
[background technology]
The high voltage converter of Shi Yonging in the market; the instantaneous value that shows its power cell direct voltage when the direct voltage supervisory control system is mainly by equipment operation in the power cell; after having disorderly closedown; the dc voltage value of the power cell when can't retention fault taking place; real-time voltage curve in the time of can't showing the power cell fault and the correct time of describing fault bring difficulty for the reason and the maintenance of breaking down when judging the power cell operation.
[utility model content]
The technical assignment of the technical problems to be solved in the utility model and proposition is that the prior art scheme is improved and improved, provide a kind of power cell direct voltage supervisory control system that is used for high voltage converter, to reach the purpose of preserving faulty section voltage data, record trouble generation time.For this reason, the utility model is taked following technical scheme:
A kind of power cell direct voltage supervisory control system that is used for high voltage converter, comprise detection module, the message processing module that links to each other with detection module that is used for detecting in real time information of voltage, the display module that is used for display working condition, it is characterized in that system also comprises:
Comparison module links to each other with message processing module, and a real time information that will be by detection module, message processing module and a preset value comparison are to obtain a comparison value;
Judge module links to each other with comparison module, is used to receive comparison value and stores with determination data to judge the real-time voltage state;
Memory module links to each other with judge module and signal processing module, is used for the data of storage signal processing module.
The magnitude of voltage that detects is made comparisons with a preset value in comparison module, when being higher than a preset value, the real-time voltage value is judged as the fault point, judge module will stop the storage of memory module, be retained in the data of the faulty section in the memory module, avoid the continuation of data to store and the faulty section data are replaced, write down the time that fault takes place simultaneously, be beneficial to the judgement of failure cause, convenient maintenance.
As the further of technique scheme improved and replenish, the utility model also comprises following additional technical feature:
Be provided with the light-coupled isolation module between described comparison module, message processing module and the judge module.Reduce and disturb, improve reliability, the stability of system works.
Described detection module comprises sampling resistor, and the two ends of sampling resistor link to each other with message processing module.
Described message processing module comprises first operational amplifier and the integrator that is attached thereto.Adjust magnitude of voltage by the magnitude of voltage that detection module records through operational amplifier and integrator.
Described comparison module comprises second operational amplifier, and described second operational amplifier, one end links to each other with signal processing module and normal voltage, and the other end links to each other with judge module by the light-coupled isolation module.Normal voltage is made comparisons with the voltage of handling through message processing module, and comparison value exports the judge module that is attached thereto to.
Described judge module and memory module are located in the programmable logic device.
System also comprises the control module that links to each other with memory module, is used to realize the unloading of faulty section information, the recovery that real time data is replaced storage.
Display module calls the data that are stored in the memory module and exports on display screen with the form of curve chart.
Beneficial effect: this practicality realizes that by increasing judge module, comparison module direct voltage dynamic monitoring, detection in real time, demonstration, record and the fault message of high voltage transducer power unit preserved, and helps operations staff's monitoring, maintenance and data management.
[description of drawings]
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model workflow diagram.
[embodiment]
Below in conjunction with Figure of description the technical solution of the utility model is described in further detail.
The utility model comprises the detection module that is used for detecting in real time information of voltage, the message processing module that links to each other with detection module, comparison module, light-coupled isolation module, judge module, memory module, control module and display module.Wherein detection module is used for the magnitude of voltage of detection line, and it establishes sampling resistor 1, and the two ends of sampling resistor 1 link to each other with message processing module; Signal processing module is used for the magnitude of voltage of sampling resistor 1 is adjusted, the integrator 3 that it is provided with first operational amplifier 2 and is attached thereto; Comparison module: link to each other with message processing module, real time information that will be by detection module, message processing module and a preset value comparison are to obtain a comparison value, comparison module comprises second operational amplifier 5, second operational amplifier, 5 one ends link to each other with signal processing module and normal voltage, and the other end links to each other with judge module by light-coupled isolation module 8; Light-coupled isolation module 8 is between comparison module, message processing module and judge module, and it is used for isolating, and disturbs to reduce, and improves reliability, the stability of system works; Judge module: link to each other by the light-coupled isolation module with comparison module, be used to receive comparison value and store with determination data to judge the real-time voltage state; Memory module: link to each other with judge module and signal processing module, be used for the data of storage signal processing module, judge module and memory module can be arranged in a programmable logic device 4; Control module 6 is used to realize the unloading of faulty section information, the recovery that real time data is replaced storage; Display module calls the data that are stored in the memory module and exports on display screen 7 with the form of curve chart.
The course of work:
As shown in Figure 2, it can may further comprise the steps:
1) detects step, testing circuit is detected, obtain the real-time voltage value by the sampling resistor of detection module;
2) information processing step is handled the real-time voltage value that detection module obtains, to reach suitable voltage range;
3) comparison step, comparison module is made comparisons to an information and the preset value handled through message processing module;
4) determining step: if magnitude of voltage is higher than a preset value, then think the fault point, prevent the information of memory module storage to preserve fault point information; Otherwise enter the information updating storing step, the information of handling through message processing module constantly is stored in the memory module, because limited storage space, real time information constantly covers, upgrades with the form of formation;
5) troubleshooting step is analyzed fault point information, handling failure, recovery system operate as normal;
6) recovering information storing step, after the elimination fault, operating personnel can recover the continuation memory function of memory module by control module;
7) step display is exported direct voltage dynamic change value or dynamic change at display screen with the form of curve chart, so that monitor, search.
Specific embodiment: during use, the utility model hardware monitoring partly is installed in power cell to be driven, earlier sampling resistor among Fig. 11 is handled the real-time voltage dynamic variable signal that collects through first operational amplifier 2 and transmitted integrator 3, integrator 3 carries out dynamic process by peripheral circuit to the Dynamic Signal of sampling, give programmable logic device 4 by light-coupled isolation 8 with the data of dynamic process again, after judging arrangement signal conveys is arrived control module 6, through the ratio computing, control module 6 obtains dynamic real time data, shows direct voltage dynamic change value or dynamic changing curve in real time by man-machine interface 7.The signal of working as first operational amplifier, 2 sampling processing simultaneously detects through second operational amplifier, 5 places and relatively exceeds reference voltage value, then programmable logic device 4 provides abnormal signal to control system, can judge the direct voltage generation overvoltage fault of power cell in the high voltage frequency converter power cabinet by the dynamic data on the display screen 7.
A kind of power cell direct voltage supervisory control system that is used for high voltage converter shown in above Fig. 1-2 is a specific embodiment of the utility model; the utility model substantive distinguishing features and progress have been embodied; can be according to the use needs of reality; under enlightenment of the present utility model; it is carried out the equivalent modifications of aspects such as shape, structure, all at the row of the protection range of this programme.
Claims (8)
1. power cell direct voltage supervisory control system that is used for high voltage converter, comprise detection module, the message processing module that links to each other with detection module that is used for detecting in real time information of voltage, the display module that is used for display working condition, it is characterized in that system also comprises:
Comparison module links to each other with message processing module, and a real time information that will be by detection module, message processing module and a preset value comparison are to obtain a comparison value;
Judge module links to each other with comparison module, is used to receive comparison value and stores with determination data to judge the real-time voltage state;
Memory module links to each other with judge module and signal processing module, is used for the data of storage signal processing module.
2. a kind of power cell direct voltage supervisory control system that is used for high voltage converter according to claim 1 is characterized in that: be provided with light-coupled isolation module (8) between described comparison module, message processing module and the judge module.
3. a kind of power cell direct voltage supervisory control system that is used for high voltage converter according to claim 2, it is characterized in that: described detection module comprises sampling resistor (1), the two ends of sampling resistor (1) link to each other with message processing module.
4. a kind of power cell direct voltage supervisory control system that is used for high voltage converter according to claim 2 is characterized in that: the integrator (3) that described signal processing module comprises first operational amplifier (2) and is attached thereto.
5. a kind of power cell direct voltage supervisory control system that is used for high voltage converter according to claim 2, it is characterized in that: described comparison module comprises second operational amplifier (5), described second operational amplifier (5) one ends link to each other with signal processing module and normal voltage, and the other end links to each other with judge module by light-coupled isolation module (8).
6. a kind of power cell direct voltage supervisory control system that is used for high voltage converter according to claim 2, it is characterized in that: described judge module and memory module are located in the programmable logic device (4).
7. according to the described a kind of power cell direct voltage supervisory control system that is used for high voltage converter of the arbitrary claim of claim 1-6, it is characterized in that: system also comprises the control module (6) that links to each other with memory module, is used to realize the unloading of faulty section information, the recovery that real time data is replaced storage.
8. a kind of power cell direct voltage supervisory control system that is used for high voltage converter according to claim 7 is characterized in that: display module calls the data that are stored in the memory module and exports on display screen (7) with the form of curve chart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202953035U CN201608631U (en) | 2009-12-29 | 2009-12-29 | Power unit direct voltage monitoring system used for high-voltage inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202953035U CN201608631U (en) | 2009-12-29 | 2009-12-29 | Power unit direct voltage monitoring system used for high-voltage inverter |
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| Publication Number | Publication Date |
|---|---|
| CN201608631U true CN201608631U (en) | 2010-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202953035U Expired - Fee Related CN201608631U (en) | 2009-12-29 | 2009-12-29 | Power unit direct voltage monitoring system used for high-voltage inverter |
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| CN (1) | CN201608631U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832794A (en) * | 2012-08-22 | 2012-12-19 | 深圳市英威腾电气股份有限公司 | Frequency converter system and fault processing method thereof |
| CN106950422A (en) * | 2017-03-20 | 2017-07-14 | 深圳市同安德方科技有限公司 | A kind of high voltage frequency converter power self-checking circuit and method |
-
2009
- 2009-12-29 CN CN2009202953035U patent/CN201608631U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832794A (en) * | 2012-08-22 | 2012-12-19 | 深圳市英威腾电气股份有限公司 | Frequency converter system and fault processing method thereof |
| CN102832794B (en) * | 2012-08-22 | 2015-01-14 | 深圳市英威腾电气股份有限公司 | Frequency converter system and fault processing method thereof |
| CN106950422A (en) * | 2017-03-20 | 2017-07-14 | 深圳市同安德方科技有限公司 | A kind of high voltage frequency converter power self-checking circuit and method |
| CN106950422B (en) * | 2017-03-20 | 2019-06-14 | 深圳市同安德方科技有限公司 | A kind of high voltage frequency converter power self-checking circuit and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 312300 No. 1801 Renmin West Road, Zhejiang, Shangyu Co-patentee after: Wolong Electrical Group Hangzhou Research Institute Co., Ltd. Patentee after: Wolong Electric Group Co., Ltd. Address before: 312300 No. 1801 Renmin West Road, Zhejiang, Shangyu Co-patentee before: Wolong Electric (Group) Co., Ltd. Patentee before: Wolong Electric Group Co., Ltd. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20111229 |