CN206389115U - A kind of centralized two-node cluster hot backup for bank electricity system switches high-voltage variable frequency power source - Google Patents
A kind of centralized two-node cluster hot backup for bank electricity system switches high-voltage variable frequency power source Download PDFInfo
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- CN206389115U CN206389115U CN201720015109.1U CN201720015109U CN206389115U CN 206389115 U CN206389115 U CN 206389115U CN 201720015109 U CN201720015109 U CN 201720015109U CN 206389115 U CN206389115 U CN 206389115U
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- frequency converters
- frequency
- node cluster
- hot backup
- cluster hot
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Abstract
A kind of centralized two-node cluster hot backup for bank electricity system switches high-voltage variable frequency power source, each berth high pressrue connection box connects electric substation's power network by double-machine equipment system, double-machine equipment system is made up of the 1# frequency converters, 2# frequency converters and a two-node cluster hot backup switching device of two same parameters, two-node cluster hot backup switching device includes control system and by-pass switching system, 1# frequency converters and 2# frequency converters connect control system, by-pass switching system connection 1# frequency converters, 2# frequency converters, switch cubicle and load motor by work and hot standby signal wire.The utility model is using centralized high pressure variable voltage variable frequency device, and Large Copacity variable voltage variable frequency device is strong to the load variations Ability of Resisting Disturbance of load-side；Power supplying efficiency is higher；Using concentration supply power, flexible is configured to the electricity capacity of dock vessels, the fixed capacity limitation in some berth is no longer limited；Equipment is concentrated and is easily managed and maintains easily；High voltage power supply uses the high-voltage variable frequency power source of two-node cluster hot backup switching device, greatly improves the reliability of load running.
Description
Technical field
The utility model is related to the variable-frequency power sources field in ship power supply technical field, more particularly to bank electricity system.
Background technology
Ship does not use the generator on ship during reaching port, but the skill of the energy is provided using harbour bank electricity system
Art is bank electricity technology.Because load peculiar to vessel includes two kinds of different frequency 50HZ and 60HZ, and domestic mains frequency is 50HZ, because
This 60HZ bank electricity system needs to be provided with variable-frequency power sources.The scheme that current bank electricity variable-frequency power sources electric power system is mainly used due into
This problem, generally the capacity of high frequency electric source multiply simultaneity factor according to ship capacity and get, cause the overload of variable-frequency power sources
Ability, and variable-frequency power sources power electronic devices due to being made up of, due to 60HZ operations cannot with power frequency as stand-by power supply,
Once failure can cause the power failure of ship.
Utility model content
In order to which in order to solve the above mentioned problem that existing bank electricity system carrys out energy presence, the utility model is used for there is provided one kind
The centralized two-node cluster hot backup switching high-voltage variable frequency power source of bank electricity system.
The technical scheme that the utility model is used to achieve the above object is：A kind of centralization for bank electricity system is double
Machine hot standby switch high-voltage variable frequency power source, each berth high pressrue connection box connects electric substation's power network commonly through double-machine equipment system, double
Machine equipment system is made up of the 1# frequency converters, 2# frequency converters and a two-node cluster hot backup switching device of two same parameters, 1# frequency conversions
Device and 2# inverter inputs connection power network, two-node cluster hot backup switching device include control system and by-pass switching system, 1# frequency conversions
Device and 2# frequency converters connect control system by work and hot standby signal wire, and control system connection by-pass switching system, bypass is cut
Change system connection 1# frequency converters, the input/output terminal of 2# frequency converters, switch cubicle and load motor.
The 1# frequency converters and 2# frequency converters are provided with 485 communication modules, 1# frequency converters and 2# frequency converters and control system it
Between using 485 communication connection.
Centralized two-node cluster hot backup of the present utility model for bank electricity system switches high-voltage variable frequency power source, and bank electricity system is used
Centralized high pressure variable voltage variable frequency device, Large Copacity variable voltage variable frequency device is strong to the load variations Ability of Resisting Disturbance of load-side；Power supply
Efficiency is higher；Using concentration supply power, flexible is configured to the electricity capacity of dock vessels, the fixed appearance in some berth is no longer limited
Amount limitation；Equipment is concentrated and is easily managed and maintains easily；High voltage power supply uses the high-voltage variable frequency power source of two-node cluster hot backup switching device,
Greatly improve the reliability of load running.
Brief description of the drawings
Fig. 1 is the schematic diagram for the centralized two-node cluster hot backup switching high-voltage variable frequency power source that the utility model is used for bank electricity system.
Fig. 2 is the utility model two-node cluster hot backup switching device schematic diagram.
Embodiment
Centralized two-node cluster hot backup of the present utility model for bank electricity system switches high-voltage variable frequency power source, principle such as Fig. 1 with
Shown in Fig. 2, each berth high pressrue connection box connects electric substation's power network commonly through double-machine equipment system, and double-machine equipment system is by Liang Tai
1# frequency converters, 2# frequency converters and a two-node cluster hot backup switching device for same parameter is constituted, 1# frequency converters and the input of 2# frequency converters
End connection power network, whole high-voltage variable frequency power source two-node cluster hot backup switching device is made up of control system, by-pass switching system two parts.
Disconnecting switch, breaker are included in by-pass switching system, 1# frequency converters, the input and output of 2# frequency converters, switch cubicle are connected respectively
And load motor.
Control signal between control system and 1# frequency converters, 2# frequency converters is transmitted by hardwire, working state signal：
Variable-frequency power sources is in running order；Hot standby status signal：Variable-frequency power sources has been provided with the condition of putting into operation, and can put into operation at any time.Control
System control sytsem is connected by 485 communications with 1# frequency converters, 2# frequency converters, passes through electric hardwire transmission work, hot standby letter
Number；Parameter between two variable-frequency power sources carries out real-time synchronization by the communication module of frequency converter, and control system is in two changes
It is shared parameter region that certain area is opened up inside the PLC of frequency device, and the shared parameter region data of two frequency converters can be with real-time synchronization.
Parameter current is updated to shared parameter under working condition；Parameter is shared under hot standby state and is updated to parameter current.
Two-node cluster hot backup switching device controls a frequency converter to enter the operation such as line precharge, normally starts after ready（Below
Be exemplified as first starting for 1# frequency converters）, then control another frequency converter（2# frequency converters）Into the operation such as precharge, treat ready
Enter hot standby state afterwards.When 1# frequency converters break down, the control system of two-node cluster hot backup switching device obtains failure letter
After number, 1# variable-frequency power sources working conditions are switched to malfunction, major loop wiring is switched to by 2# by bypass changeover device
Variable-frequency power sources, then starts 2# variable-frequency power sources, and 2# variable-frequency power sources is according to the original operational factor startup optimization of 1# variable-frequency power sources, so
The hot standby state of 2# variable-frequency power sources is switched into working condition afterwards.
In the case of 1# variable-frequency power sources failures, by bypass changeover device by 1# variable-frequency power sources and high_voltage isolation, wait to become
After frequency power is repaired, 1# variable-frequency power sources is connected with high pressure by bypass changeover device after precharge, after ready, control system
The state of 1# variable-frequency power sources is changed to hot standby state.
The utility model sets up the frequency conversion shore electric power of centralization in the higher level of multiple berth bank electricity systems, and its capacity is many
The capacity summation of individual bank electricity system variable-frequency power sources, the capacity very little of the impact relative to total variable-frequency power sources in single berth, does not allow
Easily cause power failure；The high-voltage variable frequency power source of two same parameters of use and a two-node cluster hot backup switching device constitute double simultaneously
Machine hot-backup system, it is ensured that in the case of wherein one high-voltage variable frequency power source failure, can be with switching undisturbed to another high voltage variable
Frequency power is run, and substantially increases the reliability of bank electricity system.
Claims (2)
1. a kind of centralized two-node cluster hot backup for bank electricity system switches high-voltage variable frequency power source, it is characterised in that：Each berth high pressure
Junction box connects electric substation power network commonly through double-machine equipment system, double-machine equipment system by two same parameters 1# frequency conversions
Device, 2# frequency converters and a two-node cluster hot backup switching device are constituted, 1# frequency converters and 2# inverter inputs connection power network, dual-locomotive heat
Standby switching device includes control system and by-pass switching system, and 1# frequency converters and 2# frequency converters are connected by work and hot standby signal wire
Connected control system, control system connection by-pass switching system, by-pass switching system connection 1# frequency converters, 2# frequency converters input it is defeated
Go out end, switch cubicle and load motor.
2. a kind of centralized two-node cluster hot backup for bank electricity system according to claim 1 switches high-voltage variable frequency power source, its
It is characterised by：The 1# frequency converters and 2# frequency converters are provided with 485 communication modules, 1# frequency converters and 2# frequency converters and control system it
Between using 485 communication connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720015109.1U CN206389115U (en) | 2017-01-06 | 2017-01-06 | A kind of centralized two-node cluster hot backup for bank electricity system switches high-voltage variable frequency power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720015109.1U CN206389115U (en) | 2017-01-06 | 2017-01-06 | A kind of centralized two-node cluster hot backup for bank electricity system switches high-voltage variable frequency power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206389115U true CN206389115U (en) | 2017-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720015109.1U Expired - Fee Related CN206389115U (en) | 2017-01-06 | 2017-01-06 | A kind of centralized two-node cluster hot backup for bank electricity system switches high-voltage variable frequency power source |
Country Status (1)
| Country | Link |
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| CN (1) | CN206389115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190668A (en) * | 2019-05-29 | 2019-08-30 | 北京动力源科技股份有限公司 | A kind of hot standby speed regulation power supply system |
-
2017
- 2017-01-06 CN CN201720015109.1U patent/CN206389115U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190668A (en) * | 2019-05-29 | 2019-08-30 | 北京动力源科技股份有限公司 | A kind of hot standby speed regulation power supply system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170808 Termination date: 20220106 |