CN111030046A - Multi-source mutual-feed wide-input direct-current overvoltage protector - Google Patents

Multi-source mutual-feed wide-input direct-current overvoltage protector Download PDF

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Publication number
CN111030046A
CN111030046A CN201911317542.0A CN201911317542A CN111030046A CN 111030046 A CN111030046 A CN 111030046A CN 201911317542 A CN201911317542 A CN 201911317542A CN 111030046 A CN111030046 A CN 111030046A
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China
Prior art keywords
module
input
output
reset
voltage
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Pending
Application number
CN201911317542.0A
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Chinese (zh)
Inventor
韦伟中
李凯凯
王洪明
卢惠东
高中显
孙振华
丁伟伟
杨志行
张加胜
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Upc Blue Sky Petroleum Technology Co ltd
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Upc Blue Sky Petroleum Technology Co ltd
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Priority to CN201911317542.0A priority Critical patent/CN111030046A/en
Publication of CN111030046A publication Critical patent/CN111030046A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/20Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
    • H02H3/202Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage for dc systems
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02Details
    • H02H3/04Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02Details
    • H02H3/04Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • H02H3/044Checking correct functioning of protective arrangements, e.g. by simulating a fault

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  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The invention discloses a multi-source mutual-feed wide-input direct-current overvoltage protector which comprises a work box and an overvoltage control management module, wherein an alarm warning lamp is fixedly connected to the surface of the work box, a management chip is fixedly connected to the bottom of the alarm warning lamp, and the overvoltage control management module is in bidirectional connection with a network database. This wide input direct current overvoltage protector of multisource mutual feedback, monitor the module through multisource direct current power supply in the power monitoring management module, power earthing terminal monitors the module, the joint setting of output voltage monitoring module and log generation save module, make equipment can be constantly to the input of power, the condition of output and ground connection is monitored, thereby can the outdated electric wire netting characteristics of direct current when effectual analysis multisource width is imported, and this system can in time generate the log and save, further help staff's analysis to go out the trend of equipment operation, the analytical ability of equipment has been improved.

Description

Multi-source mutual-feed wide-input direct-current overvoltage protector
Technical Field
The invention relates to the technical field of overvoltage protectors, in particular to a multi-source mutual-feed wide-input direct-current overvoltage protector.
Background
The overvoltage protection means that when the voltage of a protected line exceeds a preset maximum value, a power supply is disconnected or the voltage of controlled equipment is reduced, so that the pressure cooker is not strange, and the overvoltage protection is a necessary device for cooking food in every family. No matter what the high-tech uses electricity or the traditional pressure cooker heated by open fire, after they are heated to a certain degree, the pressure cooker can discharge hot water vapor through the air valve, how can the pressure cooker realize automatic exhaust? The reason is that when the pressure in the cooker exceeds the preset safe pressure, the pressure in the cooker is reduced by discharging the excessive water vapor, so that the pressure cooker can be safely used, and the overpressure protection measure is realized. Compared with the pressure cooker which can be used safely only by correct use, the invisible electricity is more dangerous, if the voltage is suddenly overhigh, the insulation strength and the voltage resistance of the electric equipment are exceeded, and the electric equipment can generate heat, break down and burn out or even catch fire. The damaged region of too high voltage accident is often huge, and the consumer in whole power supply piece district all can suffer basically, threatens life and property safety directly.
The common direct-current overvoltage protector only has an overvoltage protection function when in use, and the characteristics of a power grid when direct current passes through when multi-source wide input cannot be analyzed and predicted, so that workers are effectively assisted to replace the current overvoltage protector with a more adaptive overvoltage protector, and the service life of the overvoltage protector is prolonged.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a multi-source mutual-feed wide-input direct-current overvoltage protector, which solves the problem that a common direct-current overvoltage protector only has an overvoltage protection function when in use and cannot analyze and predict the characteristics of a power grid when direct current passes through under multi-source wide input, so that a worker is effectively assisted to replace the current overvoltage protector with a more adaptive overvoltage protector, and the service life of the overvoltage protector is prolonged.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a multi-source mutual-feed wide-input direct-current overvoltage protector comprises a working box and an overvoltage control management module, wherein an alarm warning lamp is fixedly connected to the surface of the working box, a management chip is fixedly connected to the bottom of the alarm warning lamp, the output end of the overvoltage control management module is connected with the input ends of a high-frequency siren, a display unit and an analysis printing module, the input end of the overvoltage control management module is connected with the output end of a power supply module, the overvoltage control management module is bidirectionally connected with a power supply monitoring management module, a networking voltage management module, a multi-power supply feedback regulation and control module and a forced reset management module, the overvoltage control management module is bidirectionally connected with a network database, the power supply monitoring management module comprises a multi-source direct-current power supply monitoring module, a power supply grounding end monitoring module, an output voltage monitoring module and a log generation and storage module, and the output end of the multi-source direct-current power supply monitoring module is connected with the input end of the power supply grounding end monitoring module.
Preferably, the output end of the power ground terminal monitoring module is connected with the input end of the output voltage monitoring module, and the output end of the output voltage monitoring module is connected with the input end of the log generation and storage module.
Preferably, the networking power management module comprises an external power change monitoring module, a voltage change trend comparison module, a voltage sudden change early warning module, an equipment resetting module and a change voltage comprehensive recording module.
Preferably, the output of power supply change monitoring module is connected with the input of voltage change trend comparison module, the output of voltage change trend comparison module is connected with the input of voltage sudden change early warning module, the output of voltage sudden change early warning module is connected with the input of equipment reset module, the output of equipment reset module is connected with the input of change voltage comprehensive recording module.
Preferably, the forced reset management module comprises an automatic reset condition judgment module, a system reset control monitoring module, a manual quick reset module and a reset log storage module.
Preferably, the output end of the automatic reset condition judgment module is connected with the input end of the system reset control monitoring module, the output end of the system reset control monitoring module is connected with the input end of the manual quick reset module, and the output end of the manual quick reset module is connected with the input end of the reset log storage module.
Preferably, the multi-power supply feedback regulation and control module comprises a multi-power supply input monitoring module, an input and output management control module, a feedback record storage module and a wide input comparison and adjustment module.
Preferably, the output end of the multi-power input monitoring module is connected with the input end of the input and output management control module, the output end of the input and output management control module is connected with the input end of the feedback record storage module, and the output end of the feedback record storage module is connected with the input end of the wide input contrast adjustment module.
(III) advantageous effects
The invention provides a multi-source mutual-feed wide-input direct-current overvoltage protector. Compared with the prior art, the method has the following beneficial effects:
(1) the multi-source mutual-feed wide-input direct-current overvoltage protector comprises a multi-source direct-current power supply monitoring module, a power supply grounding end monitoring module, an output voltage monitoring module and a log generation and storage module through a power supply monitoring management module, wherein the output end of the multi-source direct-current power supply monitoring module is connected with the input end of the power supply grounding end monitoring module, the output end of the power supply grounding end monitoring module is connected with the input end of the output voltage monitoring module, the output end of the output voltage monitoring module is connected with the input end of the log generation and storage module, and the input, output and grounding conditions of a power supply can be monitored constantly through the combined arrangement of the multi-source direct-current power supply monitoring module, the power supply grounding end monitoring module, the output voltage monitoring module and the log generation and storage module in the power supply monitoring management module, so that the, and the system can generate logs in time for storage, further assist workers to analyze the running trend of the equipment, and improve the analysis capability of the equipment.
(2) The multi-source mutual-feed wide-input direct-current overvoltage protector comprises an external power supply change monitoring module, a voltage change trend comparison module, a voltage sudden change early warning module, an equipment reset module and a change voltage comprehensive recording module through a networking power supply management module, wherein the output end of the external power supply change monitoring module is connected with the input end of the voltage change trend comparison module, the output end of the voltage change trend comparison module is connected with the input end of the voltage sudden change early warning module, the output end of the equipment reset module is connected with the input end of the change voltage comprehensive recording module, and the networking voltage management module is jointly provided with the external power supply change monitoring module, the voltage change trend comparison module, the voltage sudden change early warning module, the equipment reset module and the change voltage comprehensive recording module, make equipment can monitor external power supply voltage's security to through the effectual protection self working circuit of early warning, can be in addition through artificial manual reset, thereby confirm equipment can be supervised constantly by the staff, at last, through keeping operation record, make things convenient for the staff to carry out the investigation afterwards and pursue the responsibility, help the staff to carry out detailed analysis to current DC overvoltage protector's operating condition.
(3) The multi-source mutual-feed wide-input direct-current overvoltage protector comprises a reset condition automatic judgment module, a system reset control monitoring module, a manual quick reset module and a reset log storage module through a forced reset management module, wherein the output end of the reset condition automatic judgment module is connected with the input end of the system reset control monitoring module, the output end of the system reset control monitoring module is connected with the input end of the manual quick reset module, the output end of the manual quick reset module is connected with the input end of the reset log storage module, the multi-power-source feedback regulation and control module comprises a multi-power-source input monitoring module, an input-output management control module, a feedback record storage module and a wide-input contrast regulation module, and the combination of the multi-power-source input monitoring module, the input-output management control module, the feedback record storage module and the wide-input contrast regulation module in the multi-power-, make equipment can further regulate and control the input/output of many powers through regulation and control and monitoring when the input to many powers, thereby make equipment reach ideal state as far as possible at the during operation through wide input contrast regulation, through the automatic judgement module of the condition of resetting in the management module of forcing to reset, system reset control monitoring module, the manual quick reset module and the joint setting of the log save module that resets, make equipment can judge whether need to resume initial state at the during operation by oneself, effectual avoided equipment lead to self to destroy because of work at critical edge, the security of equipment has been improved.
Drawings
FIG. 1 is a schematic block diagram of the system of the present invention;
FIG. 2 is a schematic block diagram of a power monitor management module according to the present invention;
FIG. 3 is a functional block diagram of a networked voltage management module of the present invention;
FIG. 4 is a functional block diagram of a forced reset management module according to the present invention;
FIG. 5 is a schematic block diagram of a multi-power feedback regulation module of the present invention;
fig. 6 is a schematic structural diagram of the work box of the present invention.
In the figure, 1, a work box; 2. an overvoltage control management module; 3. an alarm warning light; 4. a management chip; 5. a high-frequency alarm whistle; 6. a display unit; 7. an analysis printing module; 8. a power supply module; 9. a power monitoring management module; 91. a multi-source direct current power supply monitoring module; 92. a power ground terminal monitoring module; 93. an output voltage monitoring module; 94. a log generation and storage module; 10. a networking voltage management module; 101. the external power supply change monitoring module; 102. a voltage variation trend comparison module; 103. a voltage sudden change early warning module; 104. a device reset module; 105. a variable voltage comprehensive recording module; 11. a forced reset management module; 111. a reset condition automatic judgment module; 112. a system reset control monitoring module; 113. a manual quick reset module; 114. a log saving module is reset; 12. a multi-power supply feedback regulation module; 121. a multi-power input monitoring module; 122. an input/output management control module; 123. a feedback record storage module; 124. a wide input contrast adjustment module; 13. a network database.
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. 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.
Referring to fig. 1-6, an embodiment of the present invention provides a technical solution: a multi-source mutual-feed wide-input direct-current overvoltage protector comprises a working box 1 and an overvoltage control management module 2, wherein the surface of the working box 1 is fixedly connected with an alarm warning lamp 3, the bottom of the alarm warning lamp 3 is fixedly connected with a management chip 4, the output end of the overvoltage control management module 2 is connected with the input ends of a high-frequency siren 5, a display unit 6 and an analysis printing module 7, the input end of the overvoltage control management module 2 is connected with the output end of a power module 8, the overvoltage control management module 2 is bidirectionally connected with a power monitoring management module 9, a networking voltage management module 10, a multi-power feedback regulation and control module 12 and a forced reset management module 11, the overvoltage control management module 2 is bidirectionally connected with a network database 13, the power monitoring management module 9 comprises a multi-source direct-current power source monitoring module 91, a power grounding terminal monitoring module 92, an output voltage monitoring module 93 and a log generation and storage, the output end of the multi-source direct current power supply monitoring module 91 is connected with the input end of the power supply ground terminal monitoring module 92, the output end of the power supply ground terminal monitoring module 92 is connected with the input end of the output voltage monitoring module 93, the output end of the output voltage monitoring module 93 is connected with the input end of the log generation and storage module 94, the networking voltage management module 10 comprises an external power supply change monitoring module 101, a voltage change trend comparison module 102, a voltage sudden change early warning module 103, an equipment reset module 104 and a change voltage comprehensive recording module 105, the output end of the external power supply change monitoring module 101 is connected with the input end of the voltage change trend comparison module 102, the output end of the voltage change trend comparison module 102 is connected with the input end of the voltage sudden change early warning module 103, the output end of the voltage sudden change early warning module 103 is connected with the input end of the equipment reset module 104, the output end of, the forced reset management module 11 includes a reset condition automatic judgment module 111, a system reset control monitoring module 112, a manual fast reset module 113 and a reset log storage module 114, the output end of the reset condition automatic judgment module 111 is connected with the input end of the system reset control monitoring module 112, the output end of the system reset control monitoring module 112 is connected with the input end of the manual fast reset module 113, the output end of the manual fast reset module 113 is connected with the input end of the reset log storage module 114, the multi-power feedback regulation and control module 12 includes a multi-power input monitoring module 121, an input and output management control module 122, a feedback record storage module 123 and a wide input contrast regulation module 124, the output end of the multi-power input monitoring module 121 is connected with the input end of the input and output management control module 122, and the multiple direct current power monitoring module 91, the wide input and output log storage module 91 in the, The combined arrangement of the power ground terminal monitoring module 92, the output voltage monitoring module 93 and the log generation and storage module 94 enables the device to constantly monitor the input, output and ground conditions of the power supply, thereby effectively analyzing the power grid characteristics when the direct current passes through when the multiple sources are input widely, and the system can timely generate and store logs to further assist the staff to analyze the running trend of the device and improve the analysis capability of the device, the output end of the input and output management control module 122 is connected with the input end of the feedback record storage module 123, and the device can monitor the safety of the external power supply voltage through the combined arrangement of the external power supply change monitoring module 101, the voltage change trend comparison module 102, the voltage sudden change early warning module 103, the device resetting module 104 and the comprehensive change voltage recording module 105 in the networking voltage management module 10, the working circuit of the device is effectively protected through early warning, in addition, the device can be manually reset through human, so that the device can be determined to be supervised by a worker all the time, finally, the operation record is stored, the worker can conveniently carry out investigation and responsibility pursuit afterwards, the worker is assisted to carry out detailed analysis on the working state of the current direct current overvoltage protector, the output end of the feedback record storage module 123 is connected with the input end of the wide input contrast adjusting module 124, the device can further regulate and control the input and output of multiple power sources through the combined arrangement of the multiple power source input monitoring module 121, the input and output management control module 122, the feedback record storage module 123 and the wide input contrast adjusting module 124 in the multiple power source feedback adjusting module 12, and the device can reach an ideal state as much as possible during working through the wide input contrast adjustment, through the combined arrangement of the reset condition automatic judgment module 111, the system reset control monitoring module 112, the manual quick reset module 113 and the reset log storage module 114 in the forced reset management module 11, the device can automatically judge whether the initial state needs to be recovered or not when in work, thereby effectively avoiding self damage of the device caused by working at a critical edge and improving the safety of the device.
When the device is used, the power supply module 8 supplies power to the overvoltage control management module 2 and the high-frequency siren 5, the device works normally, the multisource direct current power supply monitoring module 91, the power ground terminal monitoring module 92 and the output voltage monitoring module 93 in the power supply monitoring management module 9 in the device monitor the direct current power supply line, the ground line and the output line constantly, the monitoring logs are stored through the log generation and storage module 94, the change voltage is monitored through the external power supply change monitoring module 101 in the networking voltage management module 10, the voltage which is changing is extracted through the voltage change trend comparison module 102 and compared with the past voltage, the voltage which is changing is alarmed through the voltage change early warning module 103, the high-frequency siren 5 is directly called for alarming, finally, a worker can reset the device through the device resetting module 104, and finally all operation records are stored through the voltage change comprehensive recording module 105, the reset condition is judged by a reset condition automatic judging module 111 in the forced reset management module 11, the reset control is monitored by a system reset control monitoring module 112, the manual quick reset module 113 can reset manually in time, finally, the operation logs are saved by a reset log saving module 114, all the logs are directly saved into the network database 13, the device can also regulate and control and monitor the input multiple power supplies by a multiple power supply input monitoring module 121 and an input output management control module 122 in a multiple power supply feedback regulation and control module 12, the overall control is carried out by a feedback record saving module 123, the operation steps are saved by a wide input contrast regulating module 124, and the working personnel can observe the operation result through a display unit 6, and the logs are printed by an analysis printing module 7.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a wide input direct current overvoltage protector is presented to multisource each other, includes work box (1) and overvoltage control management module (2), its characterized in that: the fixed surface of work box (1) is connected with warning lamp (3), the bottom fixedly connected with management chip (4) of warning lamp (3), the output and the high frequency siren (5), display element (6) and the input of analysis print module (7) of overvoltage control management module (2) are connected, the input and the output of power module (8) of overvoltage control management module (2) are connected, overvoltage control management module (2) and power are monitored management module (9), networking voltage management module (10), are forced to reset management module (11) and many power feedback regulation and control module (12) and are realized both way junction, overvoltage control management module (2) and network database (13) realize both way junction, power is monitored management module (9) and is including multisource DC power monitoring module (91), The system comprises a power ground terminal monitoring module (92), an output voltage monitoring module (93) and a log generation and storage module (94), wherein the output end of the multi-source direct-current power supply monitoring module (91) is connected with the input end of the power ground terminal monitoring module (92).
2. The multi-source mutual-feed wide-input direct-current overvoltage protector of claim 1, wherein: the output end of the power ground terminal monitoring module (92) is connected with the input end of the output voltage monitoring module (93), and the output end of the output voltage monitoring module (93) is connected with the input end of the log generation and storage module (94).
3. The multi-source mutual-feed wide-input direct-current overvoltage protector of claim 1, wherein: the networking voltage management module (10) comprises an external power supply change monitoring module (101), a voltage change trend comparison module (102), a voltage sudden change early warning module (103), an equipment resetting module (104) and a change voltage comprehensive recording module (105).
4. A multi-source mutual-feed wide-input dc overvoltage protector according to claim 3, wherein: the output of external power supply change monitoring module (101) is connected with the input of voltage change trend comparison module (102), the output of voltage change trend comparison module (102) is connected with the input of voltage sudden change early warning module (103), the output of voltage sudden change early warning module (103) is connected with the input of equipment reset module (104), the output of equipment reset module (104) is connected with the input of change voltage comprehensive recording module (105).
5. The multi-source mutual-feed wide-input direct-current overvoltage protector of claim 1, wherein: the forced reset management module (11) comprises a reset condition automatic judgment module (111), a system reset control monitoring module (112), a manual quick reset module (113) and a reset log storage module (114).
6. The multi-source mutual-feed wide-input direct-current overvoltage protector of claim 5, wherein: the automatic reset condition judging module (111) is characterized in that the output end of the reset condition automatic judging module is connected with the input end of the system reset control monitoring module (112), the output end of the system reset control monitoring module (112) is connected with the input end of the manual quick reset module (113), and the output end of the manual quick reset module (113) is connected with the input end of the reset log saving module (114).
7. The multi-source mutual-feed wide-input direct-current overvoltage protector of claim 1, wherein: the multi-power supply feedback regulation and control module (12) comprises a multi-power supply input monitoring module (121), an input and output management control module (122), a feedback record storage module (123) and a wide input comparison regulation module (124).
8. The multi-source mutual-feed wide-input direct-current overvoltage protector of claim 7, wherein: the output end of the multi-power input monitoring module (121) is connected with the input end of the input and output management control module (122), the output end of the input and output management control module (122) is connected with the input end of the feedback record storage module (123), and the output end of the feedback record storage module (123) is connected with the input end of the wide input contrast adjusting module (124).
CN201911317542.0A 2019-12-18 2019-12-18 Multi-source mutual-feed wide-input direct-current overvoltage protector Pending CN111030046A (en)

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CN201911317542.0A CN111030046A (en) 2019-12-18 2019-12-18 Multi-source mutual-feed wide-input direct-current overvoltage protector

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CN208421193U (en) * 2018-05-14 2019-01-22 国网甘肃省电力公司白银供电公司 Direct current monitoring alarm is scurried into a kind of exchange of simple type
CN211209275U (en) * 2019-12-18 2020-08-07 中石大蓝天(青岛)石油技术有限公司 Multi-source mutual-feed wide-input direct-current overvoltage protector

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102520269A (en) * 2011-11-23 2012-06-27 上海市电力公司 Data collecting and analyzing device for energy storage system and collecting and analyzing method thereof
CN204256037U (en) * 2014-11-18 2015-04-08 国家电网公司 External overvoltage intelligent monitor system in a kind of 110kV transformer station
CN104993519A (en) * 2015-07-30 2015-10-21 国网上海市电力公司 Distributed power supply grid-connected integral apparatus
CN204906306U (en) * 2015-09-22 2015-12-23 国网浙江省电力公司电力科学研究院 Embedded anti -electricity -theft device of distributing type grid -connected PV modularization power generation system
WO2017148238A1 (en) * 2016-02-29 2017-09-08 中兴通讯股份有限公司 Output over-voltage protection method and device for power source parallelized system, and storage medium
CN107342595A (en) * 2016-12-21 2017-11-10 北京理工大学 A kind of intelligent DC micro-grid system and control method
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CN211209275U (en) * 2019-12-18 2020-08-07 中石大蓝天(青岛)石油技术有限公司 Multi-source mutual-feed wide-input direct-current overvoltage protector

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