CN107681774A - A kind of low-voltage ship bank electricity apparatus for fast switching - Google Patents
A kind of low-voltage ship bank electricity apparatus for fast switching Download PDFInfo
- Publication number
- CN107681774A CN107681774A CN201710683002.9A CN201710683002A CN107681774A CN 107681774 A CN107681774 A CN 107681774A CN 201710683002 A CN201710683002 A CN 201710683002A CN 107681774 A CN107681774 A CN 107681774A
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- fast switching
- bank electricity
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- bank
- electricity
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/08—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The low-voltage ship bank electricity apparatus for fast switching of the present invention, including apparatus for fast switching, apparatus for fast switching is connected to bank electricity switch, ship emergency power generation switch simultaneously, and apparatus for fast switching electrically connects with the on-off switch of each generator of ship and can control each switch opening and closing state；Pass through bank side data collection point, shipboard data collection point measurement collection bank electricity, vessel motion parameter, the switching that do not have a power failure between shore electric power and emergency generator can be realized, it is quick to carry out the control of bank electricity simultaneous interconnecting and judge the ship electricity consumption method of operation, the emergency start emergency generator in bank electricity dead electricity；After bank electricity recovers normal, shore-based power supply can be recovered again；The divide-shut brake of each generator contactor on controllable ship, when bank electricity load reaches a threshold value, delay cut-out load, to ensure power supply of the bank electricity to important load；Status data during bank electricity power supply can be monitored in real time, and failure judgement simultaneously starts emergency generator, improves ship electricity consumption reliability.
Description
Technical field
The present invention relates to a kind of low-voltage ship bank electricity apparatus for fast switching.
Background technology
Ship need to use shore electric power when resting in harbour, in the prior art switch shore electric power when typically by quickly after
Electrical circuit switches, and need to first power off reconnection shore electric power；And use in bank side by controlling variable-frequency power sources to adjust and control ship
The mode of side generator regulation, is equipped with synchronized detection realization, and the control loop formed is complex so that bank side, shipboard change
Make difficulty increase；Realized and controlled using communication modes, cable between the ship of opposite bank, be connected with higher particular/special requirement.Above technology is only
It is limited to power supply regulation and switching, it is impossible to monitor the service condition of shore electric power in real time, can not effectively be cut under exception or malfunction
Emergency Generator power supply is shifted to, it is not strong using adaptability.Spot ship controls and automaticity is not high, and bank electricity is once lost
Electricity, Emergency Generator can not quickly start, and power supply reliability is low；Bank electricity socket, plug need to pass through manual hand manipulation
Grafting, locked position do not access switching device, it is impossible to ensure the reliability of bank electricity major loop, bank electricity load can not when reaching limit value
Ensure the power supply of important load.
The content of the invention
The technical problem to be solved by the invention is to provide one kind can be switched fast bank electricity peculiar to vessel, and monitoring in real time judges
Failure, the power supply of ship important load is ensured, improve the low-voltage ship bank electricity apparatus for fast switching of ship electricity consumption reliability.
The low-voltage ship bank electricity apparatus for fast switching of the present invention, it is characterised in that：Including apparatus for fast switching, bank side and ship
Bank electricity switch is provided between side, shipboard emergency generator is connected with emergency power generation switch, and apparatus for fast switching is connected to simultaneously
Bank electricity switch, emergency power generation switch；Apparatus for fast switching is internally provided with data acquisition module, and data acquisition module is connected with energy
Bank side three-phase voltage, electric current, the bank side data collection point of bank electricity switch position signal are enough gathered, and shipboard three-phase electricity can be gathered
Pressure, electric current, the shipboard data collection point of marine generator switch position signal；Being additionally provided with inside apparatus for fast switching being capable of root
Real-time current, voltage, power, power factor (PF) are calculated according to the data of bank side data collection point, the measurement collection of shipboard data collection point
Computing module；Apparatus for fast switching electrically connects with each generator contactor of ship and can control each generator contactor divide-shut brake；
It is 50Hz, 60Hz that the apparatus for fast switching, which adapts to frequency,；
The apparatus for fast switching be additionally provided be connected and can show with computing module real-time current, voltage, power, power because
The display module of element；
The apparatus for fast switching is connected with bank side by optical-fibre communications；
The apparatus for fast switching is provided with the alarm module for possessing overload warning function.
The apparatus for fast switching is provided with being capable of the cut-out load when bank electricity load reaches a threshold value time delay
Classification delay Unload module；
The output end of the Unload module is loaded with ship and is connected by idle contact mode or communication modes；
The apparatus for fast switching be provided with possess detection bank electricity socket, whether plug connection arrives the interlock circuit of bit function.
The low-voltage ship bank electricity apparatus for fast switching of the present invention, surveyed by bank side data collection point, shipboard data collection point
Amount collection bank electricity, vessel motion parameter, can realize the switching that do not have a power failure between shore electric power and emergency generator, quick to carry out
Bank electricity simultaneous interconnecting controls and judged the ship electricity consumption method of operation, the emergency start emergency generator in bank electricity dead electricity；Bank electricity is extensive
After answering normally, shore-based power supply can be recovered again；The divide-shut brake of each generator contactor, reaches one in bank electricity load on controllable ship
During threshold value, be delayed the inessential load of cut-out, to ensure power supply of the bank electricity to important load；Bank electricity confession can be monitored in real time
Status data when electric, failure judgement simultaneously start emergency generator, improve ship electricity consumption reliability.
Brief description of the drawings
Fig. 1 is the low-voltage ship bank electricity apparatus for fast switching low pressure bank electricity electric power system figure of the embodiment of the present invention；
Fig. 2 is the low-voltage ship bank electricity apparatus for fast switching theory structure schematic diagram of the embodiment of the present invention；
Fig. 3 is that the low-voltage ship bank electricity apparatus for fast switching ship of the embodiment of the present invention connects bank electricity switch logic relation schematic diagram；
Fig. 4 is the low-voltage ship bank electricity apparatus for fast switching ship offshore switch logic relation schematic diagram of the embodiment of the present invention；
Fig. 5 is the switch logic relation signal after the low-voltage ship bank electricity apparatus for fast switching bank electricity dead electricity of the embodiment of the present invention
Figure；
Fig. 6 is the switch logic relation signal after the low-voltage ship bank electricity apparatus for fast switching bank electricity of the embodiment of the present invention is recovered
Figure.
Embodiment
As shown in Fig. 2 including apparatus for fast switching, bank electricity switch, shipboard emergency power generation are provided between bank side and shipboard
Machine is connected with emergency power generation switch, and apparatus for fast switching is connected to bank electricity switch, emergency power generation switch simultaneously；Apparatus for fast switching
Data acquisition module is internally provided with, data acquisition module, which is connected with, can gather bank side three-phase voltage, electric current, bank electricity switch position
The bank side data collection point of confidence number, and shipboard three-phase voltage, electric current, the ship of marine generator switch position signal can be gathered
Side data collection point；Being additionally provided with inside apparatus for fast switching can survey according to bank side data collection point, shipboard data collection point
The data of amount collection calculate real-time current, voltage, power, the computing module of power factor (PF)；Apparatus for fast switching is respectively sent out with ship
Motor switch electrically connects and can control each generator contactor divide-shut brake；
It is 50Hz, 60Hz that apparatus for fast switching, which adapts to frequency,；
Apparatus for fast switching is additionally provided with is connected and can show real-time current, voltage, power, power factor (PF) with computing module
Display module；
Apparatus for fast switching and bank side by can optical-fibre communications be connected；
Apparatus for fast switching is provided with the alarm module for possessing overload warning function.
Apparatus for fast switching be provided with can when bank electricity load reaches a threshold value time delay cut-out load classification
Be delayed Unload module, and the output end of Unload module loads with ship to be connected by idle contact mode or communication modes；
Apparatus for fast switching be provided with possess detection bank electricity socket, whether plug connection arrives the interlock circuit of bit function.
The low-voltage ship bank electricity apparatus for fast switching of the present invention, bank electricity simultaneous interconnecting control is carried out by apparatus for fast switching
With judge the ship electricity consumption method of operation, emergency start emergency generator during bank electricity dead electricity；After bank electricity recovers normal, it can recover again
Shore-based power supply.
The present invention can monitor status data during bank electricity power supply in real time, and such as bank side power supply trouble, device is judged, stand
Bank electricity switch #5 is separated, starts emergency generator, closes emergency power generation switch #4, so as to reduce power failure as far as possible to ship
The influence of oceangoing ship；When power up is normal in bank side, the switching that do not have a power failure between shore electric power and emergency generator can be also realized, can
Ship electricity consumption reliability is improved, mitigates ship operation personnel's pressure.
Embodiment is as follows：
1）The electric current of each collection point of data acquisition module measurement collection, voltage, the position of the switch, computing module can calculate and by aobvious
Show that module shows the states such as real-time current, voltage, power, power factor (PF), the data of collection pass through input logic after conversion and fortune
Module is calculated, adapts to two kinds of frequencies of 50Hz, 60Hz automatically.
2）The divide-shut brake respectively switched on control ship.
3）During normal switching, both sides frequency, phase sequence are first judged, the harm for preventing maloperation from bringing.
4）Connect switching during bank electricity：Fig. 2, shown in 3, data collecting module collected bank side data collection point A three-phase voltage,
Acquisition vessel side data collection point C three-phase voltage；
Gather bank electricity switch position signal, marine generator switch position signal；
Calculate analysis；Pass through voltage, frequency adjustment control so that voltage magnitude, phase angle, phase sequence, frequency meet same period condition；
It is switched fast by outputing module realization, first combined floodgate bank electricity switch #5, then divide marine generator to switch #1（Or #2 or #
3）, judge whether generator contactor position is consistent with action logic, if any exception, device alarm, and pass through interlock circuit locking
Switching, output the divide-shut brake that module controls each switch；
5）Switching during ship offshore：（Illustrate by taking #1 generators as an example）
Fig. 2, shown in 4, data collecting module collected shipboard data collection point C three-phase voltage, collection #1 alternator data collections
Point 1F three-phase voltage；
Gather bank electricity switch position signal, marine generator switch position signal；
Analysis is calculated, passes through voltage, frequency adjustment control so that voltage magnitude, phase angle, phase sequence, frequency meet same period condition；
Realization is switched fast, first combined floodgate marine generator switch #1（Or #2 or #3）, then separating brake bank electricity switch #5, device according to
The bank electricity collected switchs, generator contactor positional information, judges whether the ship invention machine position of the switch and action logic are consistent.
6）The present invention can monitor status data during bank electricity power supply in real time, and such as bank side power supply trouble, device is judged,
So as to reduce influence of the power failure to ship as far as possible；
Switching after bank electricity dead electricity:Shown in Fig. 5, device judges bank side data collection point A data, whether just to judge bank electricity power supply
Often, when dead electricity, phase shortage, low frequency, overfrequency occurs, bank electricity switch 5 is separated, starts emergency generator immediately, closes emergency power generation
Switch #4.
7）When power up is normal in bank side, the switching that do not have a power failure between shore electric power and emergency generator can be also realized.
Ship electricity consumption reliability can be improved, mitigates ship operation personnel's pressure；
Switching after bank electricity recovery is normal:Shown in Fig. 6, computing module judges bank side data collection point A data, judges that bank electricity supplies
Whether electricity is normal, after judging that bank electricity is normal, with same period switching mode, closes bank electricity switch 5, then separately emergency power generation switch #
4, realize that continuous TURP changes.This function is bigger to the Practical significance of frequency conversion.
8）Active power, reactive power when device can calculate bank electricity power supply, active energy, load current, possessed negative
The warning functions such as lotus.
9）Classification delay Unload module possesses the classification delay offloading functions being adapted with ship electricity consumption, can be in bank electricity load
When reaching a threshold value, delay cut-out load, to ensure power supply of the bank electricity to important load, classification delay Unload module
Unloading output uses idle contact mode, can also use communication modes.
10）Interlock circuit can input bank electricity socket, plug position, when judging that plug and socket be not inserted into position, not permit
Perhaps handover operation.
The low-voltage ship bank electricity apparatus for fast switching of the present invention, it is beneficial that：
1）Spot ship controls and automaticity is not high, once bank electricity dead electricity, the quick possibility for starting ship main generator
It is smaller, and it is feasible quickly to start emergency generator, device designs this outlet, can improve the reliability of ship electricity consumption.
2）Bank electricity socket, the manual operation of plug system, it is necessary in place, can be devoted oneself to work after locking.Device receives locking position
Contact is put, is otherwise not switched.
3）Classification delay unloading, when bank electricity load reaches a threshold value, delay cut-out load, to ensure bank electricity pair
The power supply of important load.Unloading output uses idle contact mode, can also use communication modes.
The low-voltage ship bank electricity apparatus for fast switching of the present invention, surveyed by bank side data collection point, shipboard data collection point
Amount collection bank electricity, vessel motion parameter, can realize the switching that do not have a power failure between shore electric power and emergency generator, quick to carry out
Bank electricity simultaneous interconnecting controls and judged the ship electricity consumption method of operation, the emergency start emergency generator in bank electricity dead electricity；Bank electricity is extensive
After answering normally, shore-based power supply can be recovered again；The divide-shut brake of each generator contactor, reaches one in bank electricity load on controllable ship
During threshold value, delay cut-out load, to ensure power supply of the bank electricity to important load；It can monitor in real time when bank electricity is powered
Status data, failure judgement simultaneously start emergency generator, improve ship electricity consumption reliability.
Claims (8)
- A kind of 1. low-voltage ship bank electricity apparatus for fast switching, it is characterised in that：Including apparatus for fast switching, between bank side and shipboard Bank electricity switch is provided with, shipboard emergency generator is connected with emergency power generation switch, and apparatus for fast switching is connected to bank electricity simultaneously and opened Close, emergency power generation switch；Apparatus for fast switching is internally provided with data acquisition module, and data acquisition module, which is connected with, to be gathered Bank side three-phase voltage, electric current, the bank side data collection point of bank electricity switch position signal, and shipboard three-phase voltage, electricity can be gathered Stream, the shipboard data collection point of marine generator switch position signal；Being additionally provided with inside apparatus for fast switching can be according to bank Side data collection point, the data of shipboard data collection point measurement collection calculate real-time current, voltage, power, the meter of power factor (PF) Calculate module；Apparatus for fast switching electrically connects with each generator contactor of ship and can control each generator contactor divide-shut brake.
- 2. low-voltage ship bank electricity apparatus for fast switching according to claim 1, it is characterised in that：The apparatus for fast switching is fitted It is 50Hz, 60Hz to answer frequency.
- 3. low-voltage ship bank electricity apparatus for fast switching according to claim 1, it is characterised in that：The apparatus for fast switching is also It is provided with and real-time current, voltage, power, the display module of power factor (PF) is connected and can shown with computing module.
- 4. low-voltage ship bank electricity apparatus for fast switching according to claim 1, it is characterised in that：The apparatus for fast switching with Bank side is connected by optical-fibre communications.
- 5. low-voltage ship bank electricity apparatus for fast switching according to claim 1, it is characterised in that：The apparatus for fast switching is set It is equipped with the alarm module for possessing overload warning function.
- 6. low-voltage ship bank electricity apparatus for fast switching according to claim 1, it is characterised in that：The apparatus for fast switching is set Be equipped with can when bank electricity load reaches a threshold value time delay cut-out load classification delay Unload module.
- 7. low-voltage ship bank electricity apparatus for fast switching according to claim 6, it is characterised in that：The output of the Unload module End loads with ship and is connected by idle contact mode or communication modes.
- 8. low-voltage ship bank electricity apparatus for fast switching according to claim 1, it is characterised in that：The apparatus for fast switching is set Be equipped with possess detection bank electricity socket, whether plug connection arrives the interlock circuit of bit function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710683002.9A CN107681774A (en) | 2017-08-11 | 2017-08-11 | A kind of low-voltage ship bank electricity apparatus for fast switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710683002.9A CN107681774A (en) | 2017-08-11 | 2017-08-11 | A kind of low-voltage ship bank electricity apparatus for fast switching |
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| Publication Number | Publication Date |
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| CN107681774A true CN107681774A (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710683002.9A Withdrawn CN107681774A (en) | 2017-08-11 | 2017-08-11 | A kind of low-voltage ship bank electricity apparatus for fast switching |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108493934A (en) * | 2018-04-16 | 2018-09-04 | 苏州英威腾电力电子有限公司 | A kind of shore electric power system and its shore electric power control method and device |
| CN109038682A (en) * | 2018-10-17 | 2018-12-18 | 江苏科技大学 | A kind of device inhibiting shipping shore power system inverse probability |
| CN110718907A (en) * | 2019-09-17 | 2020-01-21 | 国电南瑞科技股份有限公司 | Large-capacity shore power operation control method |
| CN114336771A (en) * | 2022-03-07 | 2022-04-12 | 澄瑞电力科技（上海）有限公司 | Self-adaptive control shipborne shore power rapid parallel operation system and method |
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| CN109038682A (en) * | 2018-10-17 | 2018-12-18 | 江苏科技大学 | A kind of device inhibiting shipping shore power system inverse probability |
| CN110718907A (en) * | 2019-09-17 | 2020-01-21 | 国电南瑞科技股份有限公司 | Large-capacity shore power operation control method |
| CN110718907B (en) * | 2019-09-17 | 2022-08-26 | 国电南瑞科技股份有限公司 | Large-capacity shore power operation control method |
| CN114336771A (en) * | 2022-03-07 | 2022-04-12 | 澄瑞电力科技（上海）有限公司 | Self-adaptive control shipborne shore power rapid parallel operation system and method |
| CN114336771B (en) * | 2022-03-07 | 2022-07-26 | 澄瑞电力科技（上海）有限公司 | Self-adaptive control shipborne shore power rapid parallel operation system and method |
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Application publication date: 20180209 |
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