CN213341176U - Power plant direct current system combination control cabinet - Google Patents
Power plant direct current system combination control cabinet Download PDFInfo
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- CN213341176U CN213341176U CN202022158399.XU CN202022158399U CN213341176U CN 213341176 U CN213341176 U CN 213341176U CN 202022158399 U CN202022158399 U CN 202022158399U CN 213341176 U CN213341176 U CN 213341176U
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- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 230000002265 prevention Effects 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 description 8
- 238000002955 isolation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
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Abstract
The utility model discloses a power plant direct current system combination control cabinet, including charging cabinet, feed cabinet and contact cabinet, the inside of charging cabinet is provided with a plurality of rectifier modules, and each rectifier module is parallelly connected each other, there is HMI display module on rectifier module's upper portion, and HMI display module's upper portion is provided with charging voltmeter and charging ammeter, rectifier module lower part is provided with change over switch, and is provided with fire prevention mud on the bottom plate below the change over switch, the left side of charging cabinet is the feed cabinet, and the inside of feed cabinet is provided with feeder circuit breaker group, the upper portion of feeder circuit breaker group is fault monitoring and isolating device, and the upper portion of fault monitoring and isolating device is the bus voltmeter, there is corresponding pilot lamp below each feeder circuit breaker in feeder circuit breaker group, and has corresponding label above the pilot lamp, be provided with fire prevention mud on the bottom plate below the feeder circuit breaker group, the right side of the charging cabinet is a connection cabinet.
Description
Technical Field
The utility model relates to a power plant direct current system technical field specifically is a power plant direct current system combination control cabinet.
Background
The direct current system is used as a core system of the power plant, is an important guarantee for the safe operation of the power plant, and mainly provides direct current electricity for the power plant in the aspects of control, signal, protection, automation, emergency lighting and the like, so that the reliability of the direct current system directly influences the safe and stable operation of the whole power plant.
However, the existing power plant dc system control cabinet:
1. faults such as grounding, short circuit, alternating current entering, insulation reduction and the like existing in a direct current system cannot be actively monitored.
2. The method can not actively and quickly respond to the fault of the direct current system and isolate the faulty feeder branch, and the method of pull loop, direct current node line selection detection and the like is usually adopted for processing the fault of the direct current system, so that the reliability of a power plant and a power grid is reduced.
Aiming at the problems, innovative design is urgently needed on the basis of the original power plant direct current system control cabinet.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a power plant direct current system combination control cabinet to solve above-mentioned background art and propose that ground connection, short circuit, the interchange that present direct current system control cabinet can not be initiative are scurried into and insulating trouble such as reducing and are monitored and the isolation faulty feeder branch road of initiative, thereby cause power plant and electric wire netting reliability to reduce, bring the problem of unnecessary loss.
In order to achieve the above object, the utility model provides a following technical scheme: a power plant direct current system combined control cabinet comprises a charging cabinet, a feed cabinet and a connection cabinet, wherein a plurality of rectifier modules are arranged in the charging cabinet, the rectifier modules are connected in parallel, an HMI display module is arranged on the upper portion of each rectifier module, a charging voltmeter and a charging ammeter are arranged on the upper portion of the HMI display module, a change-over switch is arranged on the lower portion of each rectifier module, fire-proof mud is arranged on a bottom plate below the change-over switch, the feed cabinet is arranged on the left side of the charging cabinet, a feeder circuit breaker group is arranged in the feed cabinet, a fault monitoring and isolating device is arranged on the upper portion of the feeder circuit breaker group, a bus voltmeter is arranged on the upper portion of the fault monitoring and isolating device, an indicator lamp corresponding to each feeder circuit breaker in the feeder circuit breaker group is arranged below each feeder circuit breaker, a corresponding label is arranged on the indicator lamp, and the fire-proof mud is arranged on the bottom plate, the right of the charging cabinet is an interconnection cabinet, a change-over switch is arranged in the interconnection cabinet, a charging and discharging ammeter and a battery voltmeter are arranged on the upper portion of the change-over switch, an alternating current incoming line breaker and a discharging test breaker are arranged on the lower portion of the change-over switch, and fireproof mud is arranged on the bottom plate below the alternating current incoming line breaker and the discharging test breaker.
Preferably, the direct current system combination control cabinet is configured with a double-group charging cabinet, a double-group feeding cabinet and a double-group contact cabinet.
Preferably, the rectifier module is a three-phase alternating current input.
Preferably, the HMI display module can display battery power and dc system fault information.
Preferably, the fault monitoring and isolating device can actively monitor and isolate faults of grounding, short circuit, alternating current entering, insulation reduction and the like of a direct current system of the power plant.
Preferably, each feeder breaker in the feeder cabinet internal feeder breaker group is provided with an alarm contact and an auxiliary contact.
Compared with the prior art, the beneficial effects of the utility model are that: this power plant direct current system combination control cabinet, the configuration is two groups and is charged the cabinet, and two groups feed the cabinet and two groups contact the cabinet can initiatively monitor and keep apart power plant direct current system ground connection, short circuit, exchange and scurry into and insulating trouble such as reducing to guarantee the operation of power plant safety and stability.
1. Through the configuration two group cabinet that charges, two group feed cabinet and two group contact cabinets, when direct current power supply of the same kind had a fault, can use another way direct current power supply power through the contact cabinet to guarantee the operation of power plant safety and stability.
2. By arranging the fault monitoring and isolating device and the HMI display module, when faults such as grounding, short circuit, alternating current entering, insulation reduction and the like occur in a direct current system of a power plant, a fault branch can be displayed and actively isolated, and on one hand, normal, stable and reliable operation of the direct current power supply system and equipment is ensured; on the other hand, the system can find and remove the fault as soon as possible, ensure that the system and the equipment can be recovered as soon as possible, and reduce the loss caused by the fault.
Drawings
Fig. 1 is a schematic view of the overall layout of the combined control cabinet of the present invention;
fig. 2 is a schematic layout diagram of the charging cabinet of the present invention;
FIG. 3 is a schematic view of the bottom plate structure of the present invention;
fig. 4 is a layout diagram of the feeding cabinet of the present invention;
fig. 5 is a schematic view of the layout of the contact cabinet of the present invention.
In the figure: 1. a charging cabinet; 2. a feed cabinet; 3. a contact cabinet; 4. a rectification module; 5. an HMI display module; 6. a charging voltmeter; 7. a charging ammeter; 8. a transfer switch; 9. fire-proof mud; 10. a base plate; 11. a feeder circuit breaker group; 12. a fault monitoring and isolation device; 13. a bus voltmeter; 14. an indicator light; 15. a label; 16. a charge and discharge ammeter; 17. a battery voltmeter; 18. an alternating current incoming line breaker; 19. discharge test circuit breaker.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a power plant direct current system combined control cabinet comprises a charging cabinet 1, a feed cabinet 2, a connection cabinet 3, a rectifying module 4, an HMI display module 5, a charging voltmeter 6, a charging ammeter 7, a change-over switch 8, fire-proof mud 9, a bottom plate 10, a feeder circuit breaker group 11, a fault monitoring and isolating device 12, a bus voltmeter 13, an indicator lamp 14, a label 15, a charging and discharging ammeter 16, a battery voltmeter 17, an alternating current incoming line breaker 18 and a discharging test breaker 19, wherein a plurality of rectifying modules 4 are arranged inside the charging cabinet 1, the rectifying modules 4 are connected in parallel, the upper part of each rectifying module 4 is provided with the HMI display module 5, the upper part of the HMI display module 5 is provided with the charging voltmeter 6 and the charging ammeter 7, the lower part of each rectifying module 4 is provided with the change-over switch 8, the fire-proof mud 9 is arranged on the bottom plate 10 below the change-over switch 8, the left side of the charging cabinet is the feed cabinet, and the inside of feed cabinet 2 is provided with feeder circuit breaker group 11, and the upper portion of feeder circuit breaker group 11 is fault monitoring and isolating device 12, and fault monitoring and isolating device 12's upper portion is bus voltmeter 13, has rather than corresponding pilot lamp 14 below each feeder circuit breaker in feeder circuit breaker group 11, and has corresponding label 15 above the pilot lamp 14, be provided with fire prevention mud 9 on the bottom plate below feeder circuit breaker group 11, the right of cabinet 1 that charges is contact cabinet 3, and the inside of contact cabinet 3 is provided with change over switch 8, change over switch 8's upper portion is provided with charge-discharge ammeter 16 and battery voltmeter 17, and change over switch 8's lower part is provided with interchange inlet wire breaker 18 and discharge test circuit breaker 19, is provided with fire prevention mud 9 on the bottom plate 10 below interchange inlet wire breaker 18 and the discharge test circuit breaker 19.
The power plant direct current system combination control cabinet configures two group charging cabinets 1, two group feed cabinet 2 and two group contact cabinet 3, when direct current power supply of the same kind had a fault, can use another way direct current power supply power through contact cabinet 3 to guarantee the operation of power plant safety and stability.
The rectifier modules 4 are input by three-phase alternating current, the plurality of rectifier modules 4 in the same charging cabinet 1 are connected in parallel, when the load change is large, the number of the rectifier modules 4 can be increased or reduced to meet the load requirement, and the charging voltage and the charging current of the battery can be displayed in real time through the charging voltmeter 6 and the charging ammeter 7.
The HMI display module 5 can display battery power and dc system fault information including faults such as grounding, short circuit, ac ingress, and insulation reduction, and can view historical fault data.
The fault monitoring and isolating device 12 can actively monitor and isolate faults of grounding, short circuit, alternating current entering, insulation reduction and the like of the direct current system of the power plant, and isolates the faulty branch circuit through the feed breaker group 11 in the feed cabinet 2, thereby preventing the fault range of the direct current system from being expanded, and ensuring the safe, stable and reliable operation of the direct current system of the power plant.
Each circuit breaker in the feeder circuit breaker group 11 in the feeder cabinet 2 is provided with an alarm contact and an auxiliary contact, each feeder circuit breaker corresponds to a branch, the fault of the direct current system is monitored in real time through the fault monitoring and isolating device 12, and when one branch is abnormal, the system immediately isolates the corresponding fault branch and alarms and displays.
The working principle is as follows: when the power plant direct current system combined control cabinet is used, according to the figures 1-5, firstly, after the alternating current incoming line breaker 18 is closed, two groups of charging cabinets 1, a feeding cabinet 2 and a connection cabinet 3 respectively work independently, the change-over switch 8 in the charging cabinet 1 is at a rectification output position, the change-over switch 8 in the connection cabinet 3 is at a battery output position, at the moment, two battery packs are in a floating charge state, a load outputs power through the rectification module 4, when the battery packs are seriously lack of power for a long time, the change-over switch 8 in the charging cabinet 1 can be at the battery output position, at the moment, the electric quantity, the charging voltage and the charging current of the battery packs can be checked through the HMI display module 5, the charging voltmeter 6 and the charging ammeter 7, when one direct current power supply fails, the change-over switch 8 in the connection cabinet 3 is at a connection bus position, the other direct current power supply can be, when three-phase alternating current is powered off, the load supplies power through the battery pack, the output current of the battery pack and the voltages at two ends of the battery pack can be displayed through the charging and discharging ammeter 16 and the battery voltmeter 17, the alternating current incoming line breaker 18 is disconnected, and the discharging test circuit breaker 19 can be closed to perform discharging tests on the battery pack.
Trouble monitoring and isolating device 12 real-time supervision power plant direct current system probably the trouble that appears, mainly include ground connection, the short circuit, exchange and scurry into and insulating trouble such as reducing, when certain branch circuit broke down, trouble monitoring and isolating device 12 can be through the feeder circuit breaker that feeder circuit breaker group 11 disconnection corresponds in the feed cabinet 2, thereby quick isolation trouble branch road, all be provided with fire prevention mud 9 on the bottom plate of each switch board, can prevent the condition of a fire from further expanding when the condition of a fire, power plant direct current system power supply security and reliable row have been improved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a power plant direct current system combination switch board which characterized in that: the intelligent charging cabinet comprises a charging cabinet (1), a feed cabinet (2) and a communication cabinet (3), wherein a plurality of rectifier modules (4) are arranged in the charging cabinet (1), the rectifier modules (4) are connected in parallel, an HMI display module (5) is arranged on the upper portion of each rectifier module (4), a charging voltmeter (6) and a charging ammeter (7) are arranged on the upper portion of each HMI display module (5), a change-over switch (8) is arranged on the lower portion of each rectifier module (4), fire-proof mud (9) is arranged on a bottom plate (10) below the change-over switch (8), the feed cabinet (2) is arranged on the left side of the charging cabinet, a feed circuit breaker group (11) is arranged in the feed cabinet (2), the upper portion of the feed circuit breaker group (11) is a fault monitoring and isolating device (12), and the upper portion of the fault monitoring and isolating device (12) is a bus voltmeter (13), there is rather than corresponding pilot lamp (14) below each feeder circuit breaker in feeder circuit breaker group (11), and has corresponding label (15) above pilot lamp (14), be provided with fire prevention mud (9) below feeder circuit breaker group (11) on the bottom plate, the right of the cabinet that charges is for liaison cabinet (3), and the inside of liaison cabinet (3) is provided with change over switch (8), the upper portion of change over switch (8) is provided with charge-discharge ammeter (16) and battery voltmeter (17), the lower part of change over switch (8) is provided with interchange inlet wire breaker (18) and discharge test circuit breaker (19), be provided with fire prevention mud (9) below interchange inlet wire breaker (18) and discharge test circuit breaker (19) on bottom plate (10).
2. The power plant dc system combination control cabinet of claim 1, wherein: the DC system combination control cabinet is provided with a double-group charging cabinet (1), a double-group power feeding cabinet (2) and a double-group contact cabinet (3).
3. The power plant dc system combination control cabinet of claim 1, wherein: the rectification module (4) is a three-phase alternating current input.
4. The power plant dc system combination control cabinet of claim 1, wherein: the HMI display module (5) can display the battery power and the fault information of the direct current system.
5. The power plant dc system combination control cabinet of claim 1, wherein: the fault monitoring and isolating device (12) can actively monitor and isolate the grounding, short circuit, alternating current entering and insulation of the direct current system of the power plant to reduce faults.
6. The power plant dc system combination control cabinet of claim 1, wherein: each feeder circuit breaker in the feeder cabinet (2) internal feeder circuit breaker group (11) is provided with an alarm contact and an auxiliary contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022158399.XU CN213341176U (en) | 2020-09-23 | 2020-09-23 | Power plant direct current system combination control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022158399.XU CN213341176U (en) | 2020-09-23 | 2020-09-23 | Power plant direct current system combination control cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN213341176U true CN213341176U (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022158399.XU Active CN213341176U (en) | 2020-09-23 | 2020-09-23 | Power plant direct current system combination control cabinet |
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| CN (1) | CN213341176U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116278894A (en) * | 2023-03-16 | 2023-06-23 | 中国电建集团江西省电力设计院有限公司 | Electric automobile quick charging device driven by photovoltaic direct-current power generation system |
-
2020
- 2020-09-23 CN CN202022158399.XU patent/CN213341176U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116278894A (en) * | 2023-03-16 | 2023-06-23 | 中国电建集团江西省电力设计院有限公司 | Electric automobile quick charging device driven by photovoltaic direct-current power generation system |
| CN116278894B (en) * | 2023-03-16 | 2024-04-26 | 中国电建集团江西省电力设计院有限公司 | Electric automobile quick charging device driven by photovoltaic direct-current power generation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230925 Address after: No. C-23 Huishang International, Zhangbei Town, Zhangbei County, Zhangjiakou City, Hebei Province, 076450 Patentee after: Hebei Dongyuan Wind Power Equipment Maintenance Co.,Ltd. Address before: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee before: Dragon totem Technology (Hefei) Co.,Ltd. Effective date of registration: 20230925 Address after: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Dragon totem Technology (Hefei) Co.,Ltd. Address before: 451450 Shangdu Street, Zhongmou County, Zhengzhou City, Henan Province, 1933 Patentee before: ZHENGZHOU ELECTRIC POWER TECHNOLOGY College |
|
| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A combined control cabinet for DC systems in power plants Granted publication date: 20210601 Pledgee: China Construction Bank Co.,Ltd. Zhangbei Sub branch Pledgor: Hebei Dongyuan Wind Power Equipment Maintenance Co.,Ltd. Registration number: Y2024980019791 |