CN201828651U - Digital full function state monitoring and safety evaluation device of transformer substation direct current system - Google Patents
Digital full function state monitoring and safety evaluation device of transformer substation direct current system Download PDFInfo
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- CN201828651U CN201828651U CN2010205769084U CN201020576908U CN201828651U CN 201828651 U CN201828651 U CN 201828651U CN 2010205769084 U CN2010205769084 U CN 2010205769084U CN 201020576908 U CN201020576908 U CN 201020576908U CN 201828651 U CN201828651 U CN 201828651U
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Abstract
The utility model relates to a digital full function state monitoring and safety evaluation device of a transformer substation direct current system, which is provided with a current measuring module, a voltage measuring module and an analog-to-digital (A/D) converter, wherein the current measuring module and the voltage measuring module respectively transmit measured analog signals converted through the A/D converter to a central processing unit, and after the analog signals are processed through the central processing unit, the relevant data of a storage battery pack of the transformer substation direct current system is displayed on a display unit. The set of device comprises all monitoring contents of the transformer substation direct current system and uses small equipment to replace a plurality of monitoring instruments in the prior art. The integration density is improved, the equipment cost is reduced, the fault point is reduced, the reliable operation time of the system is increased, the further deep analysis can be carried out on the data through personnel computer (CP) expert analysis software, the possibly occurring critical state is known, the safe pre-warning effect is realized, the occurrence of some safety problems is avoided, and large-area power failure accidents caused by direct current system failure are avoided.
Description
Technical field
The utility model relates to battery condition monitoring and safety assessment device, particularly a kind of transformer station direct current system digital full functional status monitoring and safety assessment device.
Background technology
Battery pack has consequence at the continuous-current plant of transformer station, and in charging process, electric battery can produce thermal runaway phenomenon, is a hidden danger of substation safety work.Thermal runaway is a kind of fault that occurs when charge in batteries, and temperature rises and follows and causes that the abnormal charging current of accumulator increases, and electric current can be increased to the degree that battery is steamed and begin to dry up; When accumulator was dry, internal resistance increased, and produced more heat, and the softening fault of cell body can take place, or caused plumbous part fusing under extreme case.
The Chinese utility model patent that publication number is CN101004440A discloses a kind of accumulator internal resistance proving installation based on 485 bus modes, this device is provided with each test cell and monitoring means in described 485 bus structure, the test cell of each joint accumulator separate configurations and himself coupling, the built-in single-chip microcomputer of each test cell, and with single-chip microcomputer as in real time, the voltage measurement unit of repeated measurement this section accumulator voltage, for providing working power with the test cell that himself mates, single-chip microcomputer outputting communication signal is connected to the RS485 bus by optical coupling isolation circuit to each accumulator output voltage by voltage conversion circuit.This device can be monitored separately each battery in the battery pack, the degree of accuracy height, but each is saved accumulator all configuration testing unit and built-in single-chip microcomputer, the high-end devices that needs is more, make the cost of proving installation improve greatly, and each piece battery cell monitoring just needed a lot of bar lines of cloth, improved the installation and maintenance cost of supervising device like this.
The utility model content
The technical problems to be solved in the utility model has provided a kind of transformer station direct current system digital full functional status monitoring and safety assessment device.This device only need a monitoring equipment to cell voltage, charging and discharging currents, voltage ripple, current ripples, the loop of whole battery pack scurry into voltage, discharge and recharge power, parameters such as charge-discharge energy, the internal resistance of cell, voltage voltage stabilizing rate, conversion efficiency monitor and record, parameter according to these records, thermal runaway state by fuzzy Judgment and expert system prediction battery pack, under the prerequisite that does not influence the monitoring precision, greatly reduce the cost of equipment.
For solving the problems of the technologies described above, described transformer station direct current system digital full functional status monitoring and safety assessment device, mainly comprise shell, be arranged on the unit of display on the case surface, be located at central processing unit, FLASH data-carrier store, geocoding and power module in the shell, the unit of display, FLASH data-carrier store and geocoding are connected with central processing unit respectively, and power module provides power supply for device; It is characterized in that: in described shell, also be provided with current measurement module, voltage measurement module and A/D converter, current measurement module, voltage measurement module are transferred to central processing unit respectively with the simulating signal that measures after the A/D converter conversion, after central processing unit is handled voltage scurried in cell voltage, charging and discharging currents, voltage ripple, current ripples, the loop of the battery pack of transformer station direct current system, discharged and recharged power, related datas such as charge-discharge energy, the internal resistance of cell, voltage voltage stabilizing rate, conversion efficiency are presented on the unit of display.
Wherein, also be provided with on described shell and be used for RS485 PORT COM that this device is connected with host computer, the communication signal of central processing unit output is connected to the RS485 bus by optical coupling isolation circuit.On described shell, also be provided with usb connecting port.The described unit of display comprises a LCD display panel, two charactron and three LED light that are used to indicate three kinds of duties that are used for the display alarm numbering.
Compared with prior art, the utility model is provided with current measurement module, voltage measurement module and A/D converter, current measurement module, voltage measurement module are transferred to central processing unit respectively with the simulating signal that measures after the A/D converter conversion, after central processing unit is handled voltage scurried in cell voltage, charging and discharging currents, voltage ripple, current ripples, the loop of the battery pack of transformer station direct current system, discharged and recharged power, related datas such as charge-discharge energy, the internal resistance of cell, voltage voltage stabilizing rate, conversion efficiency are presented on the unit of display.This covering device has comprised whole monitoring contents of transformer station direct current system, the a plurality of measuring instruments that replaced prior art with a little equipment, improved integrated level, reduced equipment cost, reduce the fault point, increased system's reliability service time, and can preserve operating all data of accumulator back-up system, can further analyse in depth these data by PC analysis expert software, the critical conditions that understanding may occur, play the effect of safe early warning, avoid the appearance of some safety problems, avoid because the large area blackout that dc system fault causes.
Description of drawings
Fig. 1 is the annexation figure of the utility model transformer station direct current system digital full functional status monitoring and safety assessment device.
Fig. 2 is the structural representation of the utility model transformer station direct current system digital full functional status monitoring and safety assessment device.
Among the figure: 1, shell, 2, geocoding, 3, the RS485 PORT COM, 4, usb connecting port, 5, voltage measurement module, 6, current measurement module.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Transformer station direct current system digital full functional status monitoring as depicted in figs. 1 and 2 and safety assessment device, mainly comprise shell 1, be arranged on the shell 1 lip-deep unit of display, be located at central processing unit, FLASH data-carrier store, geocoding 2 and power module in the shell 1, the unit of display, FLASH data-carrier store and geocoding 2 are connected with central processing unit respectively, and power module provides power supply for device; In described shell, also be provided with current measurement module 6, voltage measurement module 5 and A/D converter, current measurement module 6, voltage measurement module 5 are transferred to central processing unit respectively with the simulating signal that measures after the A/D converter conversion, after central processing unit is handled voltage scurried in cell voltage, charging and discharging currents, voltage ripple, current ripples, the loop of the battery pack of transformer station direct current system, discharged and recharged power, related datas such as charge-discharge energy, the internal resistance of cell, voltage voltage stabilizing rate, conversion efficiency are presented on the unit of display.
Simulation part has two independent AD converter and to scurry into simulating signal such as voltage with voltage, electric current, voltage ripple, current ripples to be converted into digital signal and to pass to central processing unit.
Central processing unit is with the chip of ARM chip as embedded system, periphery in embedded system, real-time clock is RX8025, F LASH data storage area, and the data of preserving character library and sampling are that AT45DB161, usb host mode controller are that CH376,485 serial communications are Max485.
Wherein, also be provided with on described shell and be used for RS485 PORT COM 3 that this device is connected with host computer, the communication signal of central processing unit output is connected to the RS485 bus by optical coupling isolation circuit.On described shell, also be provided with usb connecting port 4.The described unit of display comprises a LCD display panel, two charactron and three LED light that are used to indicate three kinds of duties that are used for the display alarm numbering.LCD is used for showing the data of sampling, the setting of real-time curve and each controlled variable.
The software of equipment uses the Embedded Operating System of multitask, judge the battery-operated state according to each parameter, whether each operational factor is in alarm condition, an enterprising step of these data bases is analyzed the data trend in one period again, utilizes fuzzy algorithm to judge whether battery pack has been in the thermal runaway state.
Compared with prior art, the utility model is provided with current measurement module, voltage measurement module and A/D converter, current measurement module, voltage measurement module are transferred to central processing unit respectively with the analog signal that measures after the A/D converter conversion, after central processing unit is processed voltage scurried in cell voltage, charging and discharging currents, voltage ripple, current ripples, the loop of the batteries of transformer station direct current system, discharged and recharged power, the related datas such as charge-discharge energy, the internal resistance of cell, voltage voltage stabilizing rate, conversion efficiency are presented on the unit of display. This covering device has comprised whole Contents for Monitorings of transformer station direct current system, the a plurality of measuring instruments that replaced prior art with a little equipment, improved integrated level, reduced equipment cost, reduce the fault point, increased system's reliability service time, and can preserve operating all data of battery back-up system, can further analyse in depth these data by PC analysis expert software, the critical condition that understanding may occur, play the effect of safe early warning, avoid the appearance of some safety problems, avoid because the large area blackout that dc system fault causes.
More than show and described basic principle of the present utility model and principal character and advantage thereof. The technology personage of the industry should understand; the utility model is not subjected to the restriction of above-mentioned implementing regulations; what describe in above-mentioned implementing regulations and the specification is to be used for illustrating principle of the present utility model; under the prerequisite that does not break away from the utility model principle and scope; the utility model also can have various changes and modifications, and these changes and improvements all belong in claimed the utility model scope.
The claimed scope of the utility model defines with appending claims and other equivalent.
Claims (4)
1. transformer station direct current system digital full functional status monitoring and safety assessment device, mainly comprise shell, be arranged on the unit of display on the case surface, be located at central processing unit, FLASH data-carrier store, geocoding and power module in the shell, the unit of display, FLASH data-carrier store and geocoding are connected with central processing unit respectively, and power module provides power supply for device; It is characterized in that: in described shell, also be provided with current measurement module, voltage measurement module and A/D converter, current measurement module, voltage measurement module are transferred to central processing unit respectively with the simulating signal that measures after the A/D converter conversion, after central processing unit is handled voltage scurried in cell voltage, charging and discharging currents, voltage ripple, current ripples, the loop of the battery pack of transformer station direct current system, discharged and recharged power, related datas such as charge-discharge energy, the internal resistance of cell, voltage voltage stabilizing rate, conversion efficiency are presented on the unit of display.
2. transformer station direct current system digital full functional status monitoring according to claim 1 and safety assessment device, it is characterized in that: also be provided with on described shell and be used for RS485 PORT COM that this device is connected with host computer, the communication signal of central processing unit output is connected to the RS485 bus by optical coupling isolation circuit.
3. transformer station direct current system digital full functional status monitoring according to claim 1 and 2 and safety assessment device is characterized in that: also be provided with usb connecting port on described shell.
4. transformer station direct current system digital full functional status monitoring according to claim 1 and safety assessment device is characterized in that: the described unit of display comprises a LCD display panel, two charactron and three LED light that are used to indicate three kinds of duties that are used for the display alarm numbering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205769084U CN201828651U (en) | 2010-10-26 | 2010-10-26 | Digital full function state monitoring and safety evaluation device of transformer substation direct current system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205769084U CN201828651U (en) | 2010-10-26 | 2010-10-26 | Digital full function state monitoring and safety evaluation device of transformer substation direct current system |
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| Publication Number | Publication Date |
|---|---|
| CN201828651U true CN201828651U (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205769084U Expired - Fee Related CN201828651U (en) | 2010-10-26 | 2010-10-26 | Digital full function state monitoring and safety evaluation device of transformer substation direct current system |
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| CN (1) | CN201828651U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944779A (en) * | 2010-10-26 | 2011-01-12 | 上海天晶电力科技发展有限公司 | Digitalized full-function state monitoring and safety evaluation device of substation direct current system |
| CN103033759A (en) * | 2012-12-11 | 2013-04-10 | 上海市电力公司 | Storage battery thermal runway intelligent judgment method |
| CN107064807A (en) * | 2012-05-03 | 2017-08-18 | Avl里斯脱有限公司 | Method for determining the critical operating state in fuel cell unit |
-
2010
- 2010-10-26 CN CN2010205769084U patent/CN201828651U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944779A (en) * | 2010-10-26 | 2011-01-12 | 上海天晶电力科技发展有限公司 | Digitalized full-function state monitoring and safety evaluation device of substation direct current system |
| CN107064807A (en) * | 2012-05-03 | 2017-08-18 | Avl里斯脱有限公司 | Method for determining the critical operating state in fuel cell unit |
| CN107064807B (en) * | 2012-05-03 | 2019-06-21 | Avl里斯脱有限公司 | Method for determining the critical operating state in fuel cell unit |
| CN103033759A (en) * | 2012-12-11 | 2013-04-10 | 上海市电力公司 | Storage battery thermal runway intelligent judgment method |
| CN103033759B (en) * | 2012-12-11 | 2015-02-18 | 上海市电力公司 | Storage battery thermal runway intelligent judgment method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20161026 |
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| CF01 | Termination of patent right due to non-payment of annual fee |