CN209046537U - Flexible direct current valve level controller with data chain redundancy configuration - Google Patents
Flexible direct current valve level controller with data chain redundancy configuration Download PDFInfo
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- CN209046537U CN209046537U CN201821749675.6U CN201821749675U CN209046537U CN 209046537 U CN209046537 U CN 209046537U CN 201821749675 U CN201821749675 U CN 201821749675U CN 209046537 U CN209046537 U CN 209046537U
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Abstract
The utility model discloses a flexible direct current valve level controller of redundant configuration of data link, including valve accuse host computer and pulse distribution cabinet, the pulse distribution cabinet includes the pulse distribution machine case, a bridge arm interface board output in pulse distribution machine case input and the valve accuse host computer is connected, the pulse distribution machine case includes first switch board, second switch board and pulse board, distribution machine case input includes first input and second input, first input is first switch board input, the second input is second switch board input, first switch board output and second switch board output all are connected with the pulse board input, corresponding bridge arm power module communication connection in pulse board output and the converter valve. The utility model provides an easy problem that appears because the single plate trouble of valve accuse device leads to the system to shut down in the present engineering, improve the operating stability of valve accuse device.
Description
Technical field
The utility model relates to flexible direct-current transmission field more particularly to a kind of flexible direct current valves of data-link redundant configuration
Grade controller.
Background technique
Flexible DC transmission is based on the HVDC Transmission Technology of new generation that can turn off power electronic devices, and inverter can be certainly
Commutation, active reactive can independent control, occupied area is small, harmonic characterisitic is excellent, noise is low, be carry out Grid interconnection and wind
The promising approach of the new energy such as electricity access.
Modular multilevel topology (Modular Multilevel Converter, MMC) is the master of current flexible direct current
Stream topology uses power module series connection to solve two level and three electricity instead of the direct series connection of power electronic power device
Big bottleneck is lost in the flat lower inverter of topology, also reduces the design and manufacture difficulty of inverter equipment, pushed flexible direct current to
High-voltage large-capacity direction is fast-developing, and flexible direct current is made to obtain the skill of substitution Traditional DC in remote extensive field of power transmission
Art potentiality.But power module substantial amounts under modular multilevel topology, and each power module is required to independently be monitored
Control proposes high requirement to the function and performance of the valve grade control protective unit (referred to as: valve control) of flexible direct current.
Flexible direct current controller generally can be divided into station control, pole control and valve control, wherein valve control receiving pole control by functional hierarchy
Modulating wave completes the triggering control of power module, assumes responsibility for including that impulse modulation, module press, loop current suppression, controllably charge, mould
The overcurrent of numerous control functions such as block Redundant Control, module monitors, overcurrent protection and direct relation inverter operational safety,
Over-voltage protecting function, valve control have obtained more and more attention to the importance of system performance and stability.Valve control function
Also bring the increase of emerged in operation problem probability with the high complexity of hardware device, exposed in previous engineering it is a lot of because
Lead to the event of system shutdown for the single plate failure of valve control device, it is therefore necessary to change to the design of existing valve control device
Into improving its operation stability.
Summary of the invention
The utility model provides a kind of flexible direct current valve level controller of data-link redundant configuration, it is intended to solve current valve
Control device is easy to appear the problem of failure leads to system shutdown due to the setting of single plate.
To achieve the above object, the utility model provides a kind of flexible direct current valve grade control of data-link redundant configuration
Device, including valve control host and pulse distribution cabinet, the pulse distribution cabinet include pulse distribution cabinet, and the pulse distribution cabinet is defeated
Entering end to connect with a bridge arm interface board output end in valve control host, the pulse distribution cabinet includes the first switch boards, the
Two switch boards and pulse plate, the distribution cabinet input terminal include first input end and the second input terminal, the first input end
For the first switch boards input terminal, second input terminal is the second switch boards input terminal, the first switch boards output end and the
Two switch boards output ends are connect with pulse plate input terminal, the pulse plate output end bridge arm power mould corresponding with converter valve
Block communication connection.
Compared with prior art, the flexible direct current valve grade control of a kind of data-link redundant configuration disclosed by the utility model
Device uses Redundancy Design in pulse distribution cabinet, i.e., the first switch boards and the second switching are provided in pulse distribution cabinet
Plate, two pieces of switch boards are connect with pulse plate, and wherein when one piece of switch boards damage, another piece of switch boards still can normal work
Make, is not in the problem of leading to system shutdown due to the failure of single plate.The utility model solves in current engineering
It is easily occurring because of the single plate failure of valve control device the problem of leading to system shutdown, the design of existing valve control device is closed
The hardware modifications of reason improve the operation stability of valve control device.
Further, the valve control host includes two sets of valve control systems, corresponding bridge arm interface board in every set valve control system
It is communicated to connect with the same pulse distribution cabinet.
Compared with prior art, the flexible direct current valve grade control of a kind of data-link redundant configuration disclosed by the utility model
Device, pulse distribution cabinet use two pieces of switch boards of Redundancy Design, are responsible for the selection of the active and standby signal of valve control host；In valve control host
Between switch boards in bridge arm interface board and pulse distribution cabinet using crossing redundancy connect, i.e. every piece of switch boards with two sleeving valve control masters
Machine is attached；Also, since two pieces of switch boards are connect with pulse plate, pulse plate will receive two-way from the first switching simultaneously
The main destiny evidence of plate and the second switch boards.The main fortune signal of two-way is valid data, and pulse plate default choice is from the first switching
The main destiny evidence of plate, automatically switches to use the master from the second switch boards if the main fortune data exception from the first switch boards
Destiny evidence.The utility model solves easily occurring in current engineering because the single plate failure of valve control device leads to system shutdown
The problem of, reasonable hardware modifications are carried out to the design of existing valve control device, improve the operation stability of valve control device.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model one embodiment.
Specific embodiment
As shown in Figure 1, a kind of flexible direct current valve level controller of data-link redundant configuration described in the utility model, including valve
It controls host and pulse distribution cabinet, the pulse distribution cabinet includes pulse distribution cabinet, the pulse distribution cabinet input terminal and valve
The bridge arm interface board output end connection in host is controlled, the pulse distribution cabinet includes the first switch boards, the second switch boards
And pulse plate, the distribution cabinet input terminal include first input end and the second input terminal, the first input end is cut for first
Plate input terminal is changed, second input terminal is the second switch boards input terminal, the first switch boards output end and the second switch boards
Output end is connect with pulse plate input terminal, the pulse plate output end bridge arm power module communication link corresponding with converter valve
It connects.
Compared with prior art, the flexible direct current valve grade control of a kind of data-link redundant configuration disclosed by the utility model
Device uses Redundancy Design in pulse distribution cabinet, i.e., the first switch boards and the second switching are provided in pulse distribution cabinet
Plate, two pieces of switch boards are connect with pulse plate, and wherein when one piece of switch boards damage, another piece of switch boards still can normal work
Make, is not in the problem of leading to system shutdown due to the failure of single plate.The utility model solves in current engineering
It is easily occurring because of the single plate failure of valve control device the problem of leading to system shutdown, the design of existing valve control device is closed
The hardware modifications of reason improve the operation stability of valve control device.
As shown in Figure 1, the pulse distribution cabinet include 3 to 6 pulse distribution cabinets, each pulse distribution cabinet with it is defeated
Enter end to connect with the same bridge arm interface board output end in valve control host.In one embodiment of the utility model, shown arteries and veins
The design that dispensing cabinet uses multiple pulse distribution cabinets is rushed, the pulse distribution carried out work will be needed to transfer to multiple pulse distribution machines
Switch boards in case carry out, and reduce hardware communications burden.
As shown in Figure 1, the valve control host includes valve control system, the valve control system includes the main arithmetic element of valve control and six
A bridge arm interface board, the main arithmetic element of valve control and each bridge arm interface board communicate to connect, and each bridge arm interface board is equal
It is communicated to connect with a pulse distribution cabinet.
As shown in Figure 1, six bridge arm interface boards are respectively bridge arm interface board on A, A lower bridge arm interface board, the upper bridge arm of B
Interface board, B lower bridge arm interface board, the upper bridge arm interface board of C, C lower bridge arm interface board, each bridge arm interface board with corresponding pulse
Dispensing cabinet communication connection.
As shown in Figure 1, the valve control host includes two sets of valve control systems, corresponding bridge arm interface board in every set valve control system
It is communicated to connect with the same pulse distribution cabinet.Compared with prior art, a kind of data-link redundant configuration disclosed by the utility model
Flexible direct current valve level controller, pulse distribution cabinet use Redundancy Design two pieces of switch boards, be responsible for the active and standby signal of valve control host
Selection；It is connected between the switch boards in bridge arm interface board and pulse distribution cabinet in valve control host using crossing redundancy, i.e., every piece
Switch boards are attached with two sleeving valve control hosts；Also, since two pieces of switch boards are connect with pulse plate, pulse plate will simultaneously
Receive main destiny evidence of the two-way from the first switch boards and the second switch boards.The main fortune signal of two-way is valid data, pulse plate
Main destiny evidence of the default choice from the first switch boards, automatically switches to make if the main fortune data exception from the first switch boards
With the main destiny evidence from the second switch boards.The utility model solves easily occurring in current engineering because valve control device is single
The problem of plate failure leads to system shutdown carries out reasonable hardware modifications to the design of existing valve control device, improves valve control dress
The operation stability set.
As shown in Figure 1, every set valve control system is communicated to connect with the corresponding pole control system in pole control host.Valve control host
It is connected upwards with pole control, using two sets of duplicate system retrofits, can breaks down to avoid because of a set of equipment, group direct current system is forced
Locking is stopped transport, the problem of reliability deficiency.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the protection scope of the utility model.
Claims (6)
1. a kind of flexible direct current valve level controller of data-link redundant configuration, including valve control host and pulse distribution cabinet, feature
It is, the pulse distribution cabinet includes pulse distribution cabinet, one in the pulse distribution cabinet input terminal and valve control host
Bridge arm interface board output end connection, the pulse distribution cabinet include the first switch boards, the second switch boards and pulse plate, described point
It include first input end and the second input terminal with cabinet input terminal, the first input end is the first switch boards input terminal, described
Second input terminal is the second switch boards input terminal, and the first switch boards output end and the second switch boards output end are and pulse plate
Input terminal connection, the pulse plate output end bridge arm power module communication connection corresponding with converter valve.
2. a kind of flexible direct current valve level controller of data-link redundant configuration according to claim 1, which is characterized in that institute
State pulse distribution cabinet include 3 to 6 pulse distribution cabinets, each pulse distribution cabinet with input terminal with it is same in valve control host
One bridge arm interface board output end connection.
3. a kind of flexible direct current valve level controller of data-link redundant configuration according to claim 2, which is characterized in that institute
Stating valve control host includes valve control system, and the valve control system includes the main arithmetic element of valve control and six bridge arm interface boards, the valve
It controls main arithmetic element and each bridge arm interface board communicates to connect, each bridge arm interface board is communicated with a pulse distribution cabinet
Connection.
4. a kind of flexible direct current valve level controller of data-link redundant configuration according to claim 3, which is characterized in that institute
Stating six bridge arm interface boards is respectively bridge arm interface board on A, A lower bridge arm interface board, the upper bridge arm interface board of B, B lower bridge arm interface
Plate, the upper bridge arm interface board of C, C lower bridge arm interface board, each bridge arm interface board are communicated to connect with corresponding pulse distribution cabinet.
5. a kind of flexible direct current valve level controller of data-link redundant configuration according to claim 4, which is characterized in that institute
Stating valve control host includes two sets of valve control systems, and corresponding bridge arm interface board and the same pulse distribution cabinet are logical in every set valve control system
Letter connection.
6. a kind of flexible direct current valve level controller of data-link redundant configuration according to claim 4, which is characterized in that every
Valve control system is covered to communicate to connect with the corresponding pole control system in pole control host.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821749675.6U CN209046537U (en) | 2018-10-26 | 2018-10-26 | Flexible direct current valve level controller with data chain redundancy configuration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821749675.6U CN209046537U (en) | 2018-10-26 | 2018-10-26 | Flexible direct current valve level controller with data chain redundancy configuration |
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| CN209046537U true CN209046537U (en) | 2019-06-28 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111181190A (en) * | 2020-01-15 | 2020-05-19 | 许继集团有限公司 | Direct-current converter valve control system and switching control method and device thereof |
| CN111781885A (en) * | 2020-07-15 | 2020-10-16 | 西安西电电力***有限公司 | Flexible direct current converter valve optical trigger plate and trigger pulse signal redundancy method |
| CN112003257A (en) * | 2020-07-29 | 2020-11-27 | 许继集团有限公司 | Control system and method for preventing direct current energy consumption device from being refused |
| CN112202323A (en) * | 2020-08-25 | 2021-01-08 | 中国南方电网有限责任公司超高压输电公司广州局 | Redundancy improving method for flexible direct current valve control protection system |
| CN113472189A (en) * | 2021-07-07 | 2021-10-01 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Double-slave judgment method and system for flexible direct current transmission valve control system |
| CN114077211A (en) * | 2020-08-19 | 2022-02-22 | 株洲中车时代电气股份有限公司 | Neutral section passing device, valve control system thereof, valve control redundancy control system and valve bank control method |
| CN117608231A (en) * | 2024-01-24 | 2024-02-27 | 西安西电电力***有限公司 | Redundancy control method and device for converter valve control system |
-
2018
- 2018-10-26 CN CN201821749675.6U patent/CN209046537U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111181190A (en) * | 2020-01-15 | 2020-05-19 | 许继集团有限公司 | Direct-current converter valve control system and switching control method and device thereof |
| CN111181190B (en) * | 2020-01-15 | 2021-12-24 | 许继集团有限公司 | Direct-current converter valve control system and switching control method and device thereof |
| CN111781885A (en) * | 2020-07-15 | 2020-10-16 | 西安西电电力***有限公司 | Flexible direct current converter valve optical trigger plate and trigger pulse signal redundancy method |
| CN111781885B (en) * | 2020-07-15 | 2023-12-26 | 西安西电电力***有限公司 | Soft direct-current converter valve optical trigger plate and trigger pulse signal redundancy method |
| CN112003257A (en) * | 2020-07-29 | 2020-11-27 | 许继集团有限公司 | Control system and method for preventing direct current energy consumption device from being refused |
| CN114077211A (en) * | 2020-08-19 | 2022-02-22 | 株洲中车时代电气股份有限公司 | Neutral section passing device, valve control system thereof, valve control redundancy control system and valve bank control method |
| CN112202323A (en) * | 2020-08-25 | 2021-01-08 | 中国南方电网有限责任公司超高压输电公司广州局 | Redundancy improving method for flexible direct current valve control protection system |
| CN113472189A (en) * | 2021-07-07 | 2021-10-01 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Double-slave judgment method and system for flexible direct current transmission valve control system |
| CN113472189B (en) * | 2021-07-07 | 2022-05-17 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Double-slave judgment method and system for flexible direct current transmission valve control system |
| CN117608231A (en) * | 2024-01-24 | 2024-02-27 | 西安西电电力***有限公司 | Redundancy control method and device for converter valve control system |
| CN117608231B (en) * | 2024-01-24 | 2024-05-14 | 西安西电电力***有限公司 | Redundancy control method and device for converter valve control system |
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