CN106849087A - A kind of bank electricity system for being applied to bulk cargo terminals - Google Patents
A kind of bank electricity system for being applied to bulk cargo terminals Download PDFInfo
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- CN106849087A CN106849087A CN201710012245.XA CN201710012245A CN106849087A CN 106849087 A CN106849087 A CN 106849087A CN 201710012245 A CN201710012245 A CN 201710012245A CN 106849087 A CN106849087 A CN 106849087A
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/02—Circuit arrangements for ac mains or ac distribution networks using a single network for simultaneous distribution of power at different frequencies; using a single network for simultaneous distribution of ac power and of dc power
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Abstract
The present invention is a kind of bank electricity system for being applied to bulk cargo terminals,Including High-voltage Incoming Cabinet,Input transformer,Power cell,Output transformer,Draw the high voltage power supply of 10kV all the way or 6kV to High-voltage Incoming Cabinet,High-voltage Incoming Cabinet output end with have step-down,The input connection of phase shift function input transformer,The output end of input transformer is connected with the input of power cell,The rated voltage of power cell is 690V,The high voltage power supply of the 10kV or 6kV is depressured by input transformer,Powered to the power cell after phase shift,Power cell is three-phase input,The friendship orthogonal PWM voltage source type inverter structure of single-phase output,The output end of adjacent power unit is together in series,Form Y binding structures,The power cell inverter being often in series in the three-phase is modulated by uniform phase difference by PWM technologies is exported,And it is superimposed as two kinds of high voltage power supplies of 6.6kV/60Hz or 6.6kV/50Hz.
Description
Technical field
The present invention relates to bank electricity technical field, more particularly to a kind of bank electricity system for being applied to bulk cargo terminals.
Background technology
In recent years, due to the strategy of national energy-saving emission reduction, domestic harbour and shipbuilding industry are all in propulsion bank electricity energetically
Technology, size power supply unit manufacturing firm also releases one after another the bank electricity scheme and product of oneself.But current bank electricity System Market
Still in the situation that each integrator feudal lords vyings for the throne, main cause be the supply load of different ships, voltage class, frequency of supply,
The difference of docking mode, and all bank electricities, ship can not possibly be transformed by same standard in the short time, so designing a set of satisfaction
The bank electricity system that difference is required, has for the bank electricity strategy that each harbour is advancing and very energetically promotes meaning.
The content of the invention
Present invention seek to address that the deficiencies in the prior art, and a kind of bank electricity system for being applied to bulk cargo terminals is provided.
The present invention to achieve the above object, using following technical scheme：
To solve the above problems, the present invention provides a kind of bank electricity system for being applied to bulk cargo terminals,
Described a kind of bank electricity system for being applied to bulk cargo terminals, it is characterised in that including High-voltage Incoming Cabinet, input transformation
Device, power cell, output transformer, draw the high voltage power supply of 10kV all the way or 6kV to High-voltage Incoming Cabinet, High-voltage Incoming Cabinet output end
Be connected with the input with step-down, phase shift function input transformer, the output end of input transformer and the input of power cell
End connection, the rated voltage of power cell is 690V, and the high voltage power supply of the 10kV or 6kV is by input transformer step-down, shifting
Powered to the power cell after phase, power cell is three-phase input, the friendship orthogonal PWM voltage source type inverter knot of single-phase output
Structure, the output end of adjacent power unit is together in series, and forms Y binding structures, will be gone here and there per phase in the three-phase by PWM technologies
The power cell inverter of connection modulates output by uniform phase difference, and is superimposed as 6.6kV/60Hz or two kinds of 6.6kV/50Hz is high
Voltage source, when setting power unit output frequency is 60Hz, generates 6.6kV/60Hz power supplys, when setting power unit exports frequency
During rate 50Hz, 6.6kV/50Hz power supplys are generated, the output end of power cell is connected with the input of output transformer, exports transformation
Device uses two-tap transformer, and 6.6kV/60Hz and 440V/60Hz two is exported when setting power unit output frequency is 60Hz
The power supply of grade is planted, when setting power unit output frequency is 50Hz, two kinds of electricity of 6.6kV/50Hz and 440V/50Hz can be obtained
Source.
The rectifying part of power cell preferably uses commutation diode, direct current component preferably to use capacitor filtering, inverting part
Divide and preferably constituted using IGBT.
Preferably, vaccum circuit device is used in High-voltage Incoming Cabinet, and is equipped with protective relaying device.It is capable of achieving variable-frequency variable-voltage dress
Trip protection or the warning functions such as the overheat of over-pressed, under-voltage, excessively stream, short circuit, phase shortage, inverter and transformer put.
The primary side Y shape connection of input transformer, the connection of secondary side triangle.Each secondary side three phase mains is respectively change
Frequency device each power cell is powered, and they are divided into three groups, corresponding with the output of frequency converter three-phase.Every group of number of secondary side winding
Amount determines according to output voltage grade, and has even phase deviation between winding.
Obtained from the output of different voltage class is the power cell by varying number of connecting.To export 6.6KV changes
, it is necessary to be the power cell of 690V per mutually 6 rated voltages of concatenation as a example by frequency device, export phase voltage and reach as high as 4140V, line electricity
Pressure reaches 6600V or so.6.6kV, 10kV voltage output can similarly be obtained.The power supply of last power cell output is by exporting transformation
Device obtains two kinds of power supplys of class 6 0Hz/50Hz of 6.6kV and 440V.Transformer is exported simultaneously plays buffer action, it is effective to protect
Shield marine electric installation.
The beneficial effects of the invention are as follows：The ship that the present invention predominantly stops bulk cargo terminals provides bank base power supply, and bank electricity sets
It is standby can according to the demand of the not shipmate type in different harbours, while provide two kinds of power supplys of different systems, i.e. 6.6kV/50Hz,
6.6kV/60Hz, or 440V/50HZ, 440V/50Hz, and seamless switching can be carried out with power supply on ship, carried out by bank base power supply
Safe and reliable power supply；Technique can reduce substantial amounts of CO2, CO and N2The discharge of O.At the same time it can also reduce ship hair
The vibration of group of motors and noise, improve the working environment of black gang.
Brief description of the drawings
Fig. 1 is system diagram of the invention.
In figure：1- High-voltage Incoming Cabinets；2- input transformers；3- power cells；4- exports transformer.
It is described in detail referring to the drawings below with reference to embodiments of the invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples：
As shown in figure 1, a kind of bank electricity system for being applied to bulk cargo terminals, it is characterised in that including High-voltage Incoming Cabinet 1, defeated
Enter transformer 2, power cell 3, output transformer 4, draw the high voltage power supply of 10kV all the way or 6kV to High-voltage Incoming Cabinet 1, height is pressed into
The output end of line cabinet 1 is connected with the input with step-down, phase shift function input transformer 2, the output end and work(of input transformer 2
The input connection of rate unit 3, the rated voltage of power cell 3 is 690V, and the high voltage power supply of the 10kV or 6kV is by input
Transformer 2 is depressured, powered to the power cell 3 after phase shift, and power cell 3 is three-phase input, the friendship orthogonal PWM of single-phase output
Voltage source inverter structure, the output end of adjacent power unit 3 is together in series, and forms Y binding structures, will by PWM technologies
The inverter of power cell 3 being often in series in the three-phase is modulated by uniform phase difference and exported, and is superimposed as 6.6kV/
Two kinds of high voltage power supplies of 60Hz or 6.6kV/50Hz, when the output frequency of setting power unit 3 is 60Hz, generation 6.6kV/60Hz electricity
Source, as 3 output frequency 50Hz of setting power unit, generates 6.6kV/50Hz power supplys, and output end and the output of power cell 3 become
The input connection of depressor 4, output transformer 4 uses two-tap transformer, when the output frequency of setting power unit 3 is 60Hz
Output two kinds of power supplys of grade of 6.6kV/60Hz and 440V/60Hz, when the output frequency of setting power unit 3 is 50Hz, can obtain
Obtain two kinds of power supplys of 6.6kV/50Hz and 440V/50Hz.
The rectifying part of power cell 3 preferably uses commutation diode, direct current component preferably to use capacitor filtering, inverting part
Divide and preferably constituted using IGBT.
Preferably, vaccum circuit device is used in High-voltage Incoming Cabinet 1, and is equipped with protective relaying device.It is capable of achieving variable-frequency variable-voltage
The trip protections such as the overheat of the over-pressed, under-voltage of device, excessively stream, short circuit, phase shortage, inverter and transformer or warning function.
The primary side Y shape connection of input transformer 2, the connection of secondary side triangle.Each secondary side three phase mains is respectively
Frequency converter each power cell 3 is powered, and they are divided into three groups, corresponding with the output of frequency converter three-phase.Every group of secondary side winding
Quantity determine and there is even phase deviation between winding according to output voltage grade.
Obtained from the output of different voltage class is the power cell 3 by varying number of connecting.To export 6.6KV changes
, it is necessary to be the power cell 3 of 690V per mutually 6 rated voltages of concatenation, output phase voltage reaches as high as 4140V, line as a example by frequency device
Voltage reaches 6600V or so.6.6kV, 10kV voltage output can similarly be obtained.The power supply of the last output of power cell 3 is by output
Transformer obtains two kinds of power supplys of class 6 0Hz/50Hz of 6.6kV and 440V.Transformer 4 is exported simultaneously and plays buffer action, effectively
Protection marine electric installation.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the present invention is implemented and do not receive aforesaid way
Limitation, as long as employing method of the present invention design and the various improvement that carry out of technical scheme, or not improved direct application
In other occasions, within protection scope of the present invention.
Claims (3)
1. a kind of bank electricity system for being applied to bulk cargo terminals, it is characterised in that including High-voltage Incoming Cabinet (1), input transformer
(2), power cell (3), output transformer (4), draw the high voltage power supply of 10kV all the way or 6kV to High-voltage Incoming Cabinet (1), and height is pressed into
Line cabinet (1) output end is connected with the input with step-down, phase shift function input transformer (2), the output of input transformer (2)
End is connected with the input of power cell (3), and the rated voltage of power cell (3) is 690V, the high-tension electricity of the 10kV or 6kV
By giving the power cell (3) power supply after input transformer (2) step-down, phase shift, power cell (3) is three-phase input, list in source
Mutually the friendship orthogonal PWM voltage source type inverter structure of output, the output end of adjacent power unit (3) is together in series, and is formed Y and is connect
Structure, modulates defeated by power cell (3) inverter being often in series in the three-phase by PWM technologies by uniform phase difference
Go out, and be superimposed as two kinds of high voltage power supplies of 6.6kV/60Hz or 6.6kV/50Hz, when setting power unit (3) output frequency is 60Hz
When, 6.6kV/60Hz power supplys are generated, as setting power unit (3) output frequency 50Hz, generate 6.6kV/50Hz power supplys, power
The output end of unit (3) be connected with the input of output transformer (4), output transformer (4) use two-tap transformer, when setting
Two kinds of power supplys of grade of 6.6kV/60Hz and 440V/60Hz are exported when determining power cell (3) output frequency for 60Hz, when setting work(
When rate unit (3) output frequency is 50Hz, two kinds of power supplys of 6.6kV/50Hz and 440V/50Hz can be obtained.
2. a kind of bank electricity system for being applied to bulk cargo terminals according to claim 1, it is characterised in that power cell (3)
Rectifying part use commutation diode, direct current component uses capacitor filtering, Converting Unit to be constituted using IGBT.
3. a kind of bank electricity system for being applied to bulk cargo terminals according to claim 1, it is characterised in that High-voltage Incoming Cabinet
(1) vaccum circuit device is used in, and is equipped with protective relaying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710012245.XA CN106849087A (en) | 2017-01-09 | 2017-01-09 | A kind of bank electricity system for being applied to bulk cargo terminals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710012245.XA CN106849087A (en) | 2017-01-09 | 2017-01-09 | A kind of bank electricity system for being applied to bulk cargo terminals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106849087A true CN106849087A (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710012245.XA Pending CN106849087A (en) | 2017-01-09 | 2017-01-09 | A kind of bank electricity system for being applied to bulk cargo terminals |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789703A (en) * | 2010-01-05 | 2010-07-28 | 广东明阳龙源电力电子有限公司 | High-power variable frequency power supply device |
| CN102497110A (en) * | 2011-12-06 | 2012-06-13 | 连云港星火岸电工程有限公司 | Wharf marine shore power system |
| CN203180788U (en) * | 2012-11-29 | 2013-09-04 | 广东明阳龙源电力电子有限公司 | Ship-used 60 Hz shore power supply multi-level high-voltage frequency converter |
-
2017
- 2017-01-09 CN CN201710012245.XA patent/CN106849087A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789703A (en) * | 2010-01-05 | 2010-07-28 | 广东明阳龙源电力电子有限公司 | High-power variable frequency power supply device |
| CN102497110A (en) * | 2011-12-06 | 2012-06-13 | 连云港星火岸电工程有限公司 | Wharf marine shore power system |
| CN203180788U (en) * | 2012-11-29 | 2013-09-04 | 广东明阳龙源电力电子有限公司 | Ship-used 60 Hz shore power supply multi-level high-voltage frequency converter |
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Application publication date: 20170613 |