CN107645176A

CN107645176A - A kind of ship control connects bank electricity device and method

Info

Publication number: CN107645176A
Application number: CN201710889809.8A
Authority: CN
Inventors: 肖乐明
Original assignee: Guangzhou Maritime University
Current assignee: Guangzhou Maritime University
Priority date: 2017-09-27
Filing date: 2017-09-27
Publication date: 2018-01-30
Anticipated expiration: 2037-09-27
Also published as: CN107645176B

Abstract

A kind of method that ship control connects bank electricity, step 01：Control module is connected with to connection module, connection module, battery module and control module are set aboard ship；Step 02：Socket of the bank electricity transformer in bank electricity power station by cable is connected with the input port to connection module；Step 03：Battery module is connected with the rectification module to connection module, inversion module respectively, battery module is connected with control module；Step 04：Grid-connected switch is closed, controls the bearing power of marine generator to be shifted to connection module；When marine generator power output drop to predetermined power or it is following when, close marine generator；Step 05：One of three kinds of method of supplying power to that selection is carried out on demand using only bank electricity power supply mode, only storage battery power supply mode or bank electricity with storage battery power supply at any time, it is changeable between three kinds of method of supplying power to.The present invention can select a variety of power supply modes, when ship electricity docks with bank electricity, can be controlled from ship, convenience and high-efficiency.

Description

A kind of ship control connects bank electricity device and method

Technical field

The present invention relates to the device and method that a kind of ship electricity connects bank electricity, more particularly to control connects the device of bank electricity on a kind of ship And method.

Background technology

Ship shore electric technology refers to the power network of ship access quay side during reach port, from power supply on the bank obtain its water pump, Electric power needed for communication, ventilation, illumination and other facilities, so as to close the diesel-driven generator of itself.Ship can have after connecing bank electricity Effect ground reduces the discharge of waste gas, has the remarkable advantage of energy-conserving and environment-protective, can reduce noise pollution caused by generating set operation, drop Low cost, therefore, government and its all uses of implementation bank electricity energetically of traffic department, shipping enterprise, port enterprise.

The defects of existing bank electricity system, is that most domestic harbour bank electricity device is powered using 400V/50Hz, and is adopted Reached port with the ship of its electricity system and be reluctant to connect bank electricity mostly, because general ship is first to close marine generator the step of connecing bank electricity, Bank electricity power station is connect again, when ship needs to leave, is first disconnected bank electricity power station, is restarted marine generator, the two power-off switchings Process it is extremely time-consuming, resetted on ship after many device powers downs reset after the device powers downs such as trouble, compass it is small sometimes for 6 When, influence setting sail for ship；In addition, the danger for existing and starting simultaneously that is powered after the standby each other device powers down of cabin.Through to remote The investigation of foreign ship captain/chief engineer confirms, if its ship berthing time is in 48 hours, is all reluctant to connect bank electricity.

In addition, when ship electricity connects bank electricity, often the various parameters in docking operation are controlled by shore facilities, it is real Existing intelligent Matching, need on the bank with carrying out some compounding practices on ship during this, sometimes can be because of confusing communication along drop Low docking efficiency.Second, because equipment on the bank is not set exclusively for particular boat, common apparatus on the bank need with it is various The ship of various kinds different size is docked, and its versatility requirement is higher, is differed and is surely useful on the ship of all kinds, High-precision matching can not be reached, cause the parameters such as voltage, frequency unstable.3rd, the service of connection devices on the bank is typically apart from ship Farther out, it is connected by cable with ship, in the case that the distance of cable is longer, can be produced larger pressure drop, be consumed electric energy, reduce Power supplying efficiency, when pressure drop is higher, bank electricity feeder ear will also accordingly improve voltage according to pressure drop size, to offset pressure drop, due to The length of cable is different, and caused pressure drop is different, it is necessary to by complicated intelligent control raising output voltage, and it is difficult to increase implementation Degree, adds system burden.4th, for the higher ship of power load (specification of ship is larger or ship electricity consumption is born at that time Lotus is higher, when such as carrying out some special operations), then need multi-cable to power, power load is bigger, and number of cables is more, institute Need the specification of cable also higher, often volume and weight is huge for these cables, transport and docking will expend more manpower and when Between, when the number of cables for needing to dock is more, then to treat that whole cables install could be carried out between bank electricity and ship electricity Docking, takes time and effort, or even, it is necessary to transferred from warehouse in the case of cable temporarily deficiency, or wait other ship to use It could use, then take longer after finishing.

The content of the invention

Based on this, it can select a variety of power supply modes it is an object of the present invention to provide a kind of, connect bank by what is controlled on ship The method of electricity.

The technical solution adopted in the present invention is：

A kind of method that ship control connects bank electricity, comprises the following steps：

Step 01：Control module is connected with to connection module；Control module is connected with Ship Power Station, control module detection ship The load current and load power in oceangoing ship power station；The output port of connection module is connected by grid-connected switch with Ship Power Station, it is grid-connected Switch off；Wherein, connection module, battery module and control module are set aboard ship；

Selection uses bank electricity and/or storage battery power supply mode；When using only bank electricity power supply mode, then step is first carried out 02, step 03 is skipped, then performs step 04；When using only storage battery power supply mode, then step 02 is skipped, performs step 03, Then step 04 is performed；When power supply mode common with battery using bank electricity power supply, then step 02 and step 03 are performed, then The sequencing of execution step 04, step 02 and step 03 is interchangeable；

Step 02：Socket of the bank electricity transformer in bank electricity power station by cable is connected with the input port to connection module, The input port of connection module is connected with output port, control module detection cable parameter, determines rectification parameter；

Step 03：Battery module is connected with the rectification module to connection module, inversion module respectively, by battery module It is connected with control module；

Step 04：Grid-connected switch is closed, controls the bearing power of marine generator to be shifted to connection module；When ship generates electricity Machine power output drop to predetermined power or it is following when, close marine generator；

Step 05：Bank electricity power station and/or battery are continuously Ship Power Station power supply, and selection is using only bank electricity at any time One of three kinds of method of supplying power to that power supply mode, only storage battery power supply mode or bank electricity are carried out on demand with storage battery power supply, three kinds of confessions It is changeable between method for electrically；Specific method is as follows：

(1) when using only bank electricity power supply mode, then battery module and the connection to connection module are disconnected；

(2) when the socket for using only storage battery power supply mode, then disconnecting cable or to the input port of connection module with docking The connection of the output port of module；

(3) when the power supply mode carried out on demand with storage battery power supply using bank electricity, then by battery module and to connection module Connection, and the socket of cable, the input port to connection module, the output port to connection module are sequentially connected；When control module is examined Measure when being less than the electric current of its output port to the electric current of the input port of connection module, control battery module is put to inversion module Electricity；When control module, which detects, is more than the electric current of its output port to the electric current of the input port of connection module, then rectification is controlled Module charges to battery module；Its output port is equal to the electric current of the input port of connection module when control module detects During electric current, battery module does not work.

The ship control of the present invention connects bank electricity method, can select a variety of power supply modes, the ship control connects bank electricity device and is arranged on ship On, thus ship electricity docked with bank electricity when, can be controlled from ship, in control process, ship's staff need not with the bank Personnel's compounding practice, power supply can be controlled according to the situation of Ship Power Station in time, convenience and high-efficiency；Every ship control bank electricity dress Putting can be designed according to the situation of different ships, set the docking parameter for being best suitable for the ship, reach high-precision matching, make pair The parameters such as the voltage that connects and power, frequency can be more stable, improves Supply Security and power supply quality.

Further, in step 04, during using only bank electricity power supply mode, the bearing power of marine generator is controlled to right Connection module shifts, and specific method is that control module is controlled to connection module, bag using inner ring control method and outer loop control method Include following steps：

Step 041：Using the outer loop control method of V/f control methods, bank is converted to by the target frequency of marine generator The target frequency of piezoelectric transformer output；Meanwhile output frequency and voltage using phase locking loop controlling method control to connection module；

Step 042：Outer loop control method is converted into P/Q control methods, control marine generator frequency by V/f control methods Rate and voltage, using Ship Power Station real time load power as target power, power transfer being carried out, inversion module power output increases, Marine generator power output declines；Meanwhile output frequency and voltage using phase locking loop controlling method control to connection module.

Further, in step 04, the confession that is carried out on demand using only bank electricity power supply mode or bank electricity and storage battery power supply When electrically, after the completion of the power supply seamless switching of step 04, further comprise performing step 041：If bank electricity power station and ship The frequency in oceangoing ship power station is identical, then is connected the socket of the cable of bank electricity with Ship Power Station, without rectification module and inversion module, Directly powered from bank electricity power station to Ship Power Station, power supply mode is pressed with frequency modulation with frequency direct feeding system, or bank electricity using bank electricity； If bank electricity power station is different from the frequency of Ship Power Station, step 041 is skipped.

Such scheme can be powered according to the ship of the power station standard of different frequency, avoid in the prior art, by Had differences in bank electricity and ship electricity in the standard of power station, the problem of causing Ship Power Station and very big generator control difference (according to International Maritime Organization counts, and more than 60% international carriage ship is made using 450V/60Hz electricity, and more than 60% power supply on the bank Made for 400V/50Hz electricity).

Further, in step 04 and/or step 05, the power supply carried out on demand with storage battery power supply of being powered using bank electricity Mode, an at least cable is accessed in step 02, when cable total capacity is less than the load capacity of Ship Power Station, battery mould Block discharges to inversion module, continues to increase cable, until cable total capacity is more than or equal to the load capacity of Ship Power Station.

For the higher ship of power load, cable can be docked respectively, not yet can in the number of cables of connection When meeting ship power load, by the way of battery supplementary power, it is capable of the folding and unfolding and docking of flexible arrangement cable, can It is quick to come into operation and fast shut-off, improve power supplying efficiency.

Further, in step 02, the cable data includes the radical of cable and the rated current of every cable, institute It is rectification pilot angle, the parameter value of rectification output DC current to state rectification parameter；The predetermined power is 5% marine generator Rated power.

The present invention also provides the device that a kind of ship control connects bank electricity, and it is set aboard ship, including to connection module, battery mould Block, control module；The control module is connected with described to connection module, battery module, Ship Power Station respectively；The control mould Block is used for the load current and load power for detecting Ship Power Station；The input port to connection module can pass through the socket of cable It is connected with the bank electricity transformer in bank electricity power station, the output port to connection module is connected by grid-connected switch with Ship Power Station；

It is described to include first switch, rectification module, inversion module and the 4th switch, the first switch and institute to connection module The input port connection to connection module is stated, the 4th switch is connected with the output port to connection module；Described first opens Pass, rectification module, inversion module, the 4th switch are sequentially connected, the docking of composition bank electricity and conversion power supply circuit；The battery mould Block is connected with the rectification module, inversion module respectively, the first switch, rectification module, battery module composition battery Charging circuit, the battery module, inversion module, the 4th switch composition battery discharging circuit.

The ship control of the present invention connects bank electricity device, it is possible to achieve a variety of power supply modes, the ship control connect bank electricity device and be arranged on ship On, thus ship electricity docked with bank electricity when, can be controlled from ship, in control process, ship's staff need not with the bank Personnel's compounding practice, power supply can be controlled according to the situation of Ship Power Station in time, convenience and high-efficiency；Every ship control bank electricity dress Putting can be designed according to the situation of different ships, set the docking parameter for being best suitable for the ship, reach high-precision matching, make pair The parameters such as the voltage that connects and power, frequency can be more stable, improves Supply Security and power supply quality.

Further, the input port to connection module is three-line port A, B, C of three-phase alternating current electric line, its Output port is three-line port x, Y, Z of three-phase alternating current electric line；The rectification module includes the first fuse, the second guarantor It is dangerous silk, the 3rd fuse, the 7th fuse, the first inductance, the first controllable silicon, the second controllable silicon, the 3rd controllable silicon, the 4th controllable Silicon, the 5th controllable silicon, the 6th controllable silicon, the first electric capacity；The first switch, the first inductance are separately positioned on three-line； 4th switch is separately positioned on three-line；

The line port A, first switch, the first fuse, the first inductance are sequentially connected, the other end point of the first inductance Do not connect positive pole, the negative pole of the second controllable silicon of the first controllable silicon, the negative pole of the first controllable silicon concatenates the 7th fuse and is followed by the The positive pole of one electric capacity, the positive pole of the second controllable silicon connect the negative pole of the first electric capacity；The line port B, first switch, the second insurance Silk, the first inductance are sequentially connected, the other end of the first inductance connect respectively the positive pole of the 3rd controllable silicon, the 4th controllable silicon it is negative Pole, the negative pole of the 3rd controllable silicon concatenate the positive pole that the 7th fuse is followed by the first electric capacity, and the positive pole of the 4th controllable silicon connects the first electricity The negative pole of appearance；The line port C, first switch, the 3rd fuse, the first inductance are sequentially connected, the other end of the first inductance Positive pole, the negative pole of the 6th controllable silicon of the 5th controllable silicon are connected respectively, and the negative pole of the 5th controllable silicon concatenates the 7th fuse and is followed by The positive pole of first electric capacity, the positive pole of the 6th controllable silicon connect the negative pole of the first electric capacity；

The battery module includes the 8th fuse, the 5th switch, the 9th fuse, the battery being sequentially connected in series, institute The other end for stating the 8th fuse is connected with the positive pole of the first electric capacity, and the negative pole of battery is connected with the negative pole of the first electric capacity.

Further, it is double to include the second electric capacity, the first insulated gate bipolar transistor, the second insulated gate for the inversion module Bipolar transistor, the 3rd insulated gate bipolar transistor, the 4th insulated gate bipolar transistor, the 5th insulated gate bipolar transistor Transformer, the 4th 1 bidirectional triode thyristor, the four or two bidirectional triode thyristor and the 4th on pipe, the 6th insulated gate bipolar transistor, ship Three bidirectional triode thyristors；

Transformer uses triangle-star connection, its delta connection termination line port U, V, W, its star on the ship Shape connection terminates line port X1, Y1, Z1 and zero line；The line port W other end connects the first insulated gate bipolar crystalline substance respectively The colelctor electrode of the emitter stage of body pipe, the second insulated gate bipolar transistor, the current collection of first insulated gate bipolar transistor Pole connects the positive pole of the second electric capacity, the positive pole of the first electric capacity respectively, and the emitter stage of the second insulated gate bipolar transistor connects respectively The negative pole of the negative pole of two electric capacity, the first electric capacity；The line port V other end connects the hair of the 3rd insulated gate bipolar transistor respectively The colelctor electrode of emitter-base bandgap grading, the 4th insulated gate bipolar transistor, the colelctor electrode of the 3rd insulated gate bipolar transistor connect respectively The positive pole of the positive pole of second electric capacity, the first electric capacity, the emitter stage of the 4th insulated gate bipolar transistor connect the second electric capacity respectively The negative pole of negative pole, the first electric capacity；The line port U other end connects the emitter stage of the 5th insulated gate bipolar transistor, respectively The colelctor electrode of six insulated gate bipolar transistors, the colelctor electrode of the 5th insulated gate bipolar transistor connect the second electric capacity respectively Positive pole, the positive pole of the first electric capacity, the emitter stage of the 6th insulated gate bipolar transistor connects the negative pole of the second electric capacity, first respectively The negative pole of electric capacity；The line port X, the 4th switch, the 4th 1 bidirectional triode thyristor, line port X1 are sequentially connected；The line Road port Y, the 4th switch, the four or two bidirectional triode thyristor, line port Y1 are sequentially connected；The line port Z, the 4th switch, Four or three bidirectional triode thyristor, line port Z1 are sequentially connected.

After being arranged on to connection module on ship, it is directly connected to Ship Power Station, and the voltage of input is adjusted to by connection module Ship Power Station is directly output to after voltage needed for ship, is avoided in the prior art, after the service of connection devices progress transformation on the bank also Need by pressure drop caused by long-distance cable, in order to offset pressure drop, it is necessary to improve output voltage by complicated intelligent control, Thus the defects of increasing enforcement difficulty.

Further, the bank electricity that also includes to connection module is the same as the direct supply line of frequency；The bank electricity is directly powered with frequency Circuit includes the 3rd switch；One end of 3rd switch is connected with the input port to connection module, its other end and institute State the output port connection to connection module.

Further, the bank electricity that also includes to connection module presses supply line with frequency modulation；The bank electricity is pressed with frequency modulation and powered Circuit includes second switch, the 4th fuse, the 5th fuse, the 6th fuse, the 3rd 1 bidirectional triode thyristor, the three or two two-way Controllable silicon, the three or three bidirectional triode thyristor；The input port to connection module is the three-line port of three-phase alternating current electric line A, B, C, its output port are three-line port x, Y, Z of three-phase alternating current electric line；The second switch, the 4th switch difference It is arranged on three-line；

Line port A is sequentially connected in series second switch, the 4th fuse, the 3rd 1 bidirectional triode thyristor, the 4th switch, line scan pickup coil side Mouth X；Line port B is sequentially connected in series second switch, the 5th fuse, the three or two bidirectional triode thyristor, the 4th switch, line port Y； Line port C is sequentially connected in series second switch, the 6th fuse, the three or three bidirectional triode thyristor, the 4th switch, line port Z.

In order to more fully understand and implement, the invention will now be described in detail with reference to the accompanying drawings.

Brief description of the drawings

Fig. 1 is the principle schematic of the embodiment of the present invention one；

Fig. 2 is the embodiment of the present invention one to connection module and the circuit diagram of battery module.

Embodiment

Embodiment one

Referring to Fig. 1, it is the principle schematic of the embodiment of the present invention one.The ship control of the present embodiment connects the setting of bank electricity device On ship, it is included to connection module, battery module and control module.The input port to connection module can pass through cable Socket is connected with the bank electricity transformer in bank electricity power station, and its output port can be connected by grid-connected switch K6 with Ship Power Station.Electric power storage Pond module is connected with to connection module, carries out discharge and recharge to it as required.The control module respectively with to connection module, battery mould Block, Ship Power Station connection, to being controlled to connection module and battery module in docking operation and power supply process.

Referring to Fig. 2, it is the embodiment of the present invention one to connection module and the circuit diagram of battery module.

The present embodiment to include first switch K1, rectification module, inversion module, the 4th switch K4, bank electricity to connection module same Frequency directly supply line, bank electricity press supply line with frequency modulation.Wherein, the first switch K1 and the input to connection module Mouth connection, the 4th switch K4 are connected with the output port to connection module；It is the first switch K1, rectification module, inverse Become module, the 4th switch K4 is sequentially connected, the docking of composition bank electricity and conversion power supply circuit；The battery module respectively with it is described Rectification module, inversion module connection, the first switch K1, rectification module, battery module composition battery charging circuit, institute State battery module, inversion module, the 4th switch K4 composition battery discharging circuits.

Specifically, the input port to connection module is (following for three-line port A, B, C of three-phase alternating current electric line Abbreviation ABC), its output port is three-line port x, Y, Z (hereinafter referred to as XYZ) of three-phase alternating current electric line.Closure first After switching K1, when the electric current at ABC is more than the electric current at XYZ, rectification module charges to battery module, at ABC Electric current when being less than the electric current at XYZ places, battery module discharges inversion module, and the electric current at ABC is equal at XYZ During electric current, battery module does not work.

(1) rectification module

The rectification module include the first fuse F1, the second fuse F2, the 3rd fuse F3, the 7th fuse F7, First inductance L1, the first controllable silicon S11, the second controllable silicon S12, the 3rd controllable silicon S13, the 4th controllable silicon S14, the 5th controllable silicon S15, the 6th controllable silicon S16, the first electric capacity C1；The first switch K1, the first inductance L1 are separately positioned on three-line；Institute The 4th switch K4 is stated to be separately positioned on three-line；

The line port A, first switch K1, the first fuse F1, the first inductance L1 are sequentially connected, the first inductance L1's The other end connects the first controllable silicon S11 positive pole, the second controllable silicon S12 negative pole, the first controllable silicon S11 negative pole concatenation respectively 7th fuse F7 is followed by the first electric capacity C1 positive pole, and the second controllable silicon S12 positive pole connects the first electric capacity C1 negative pole；The line Road port B, first switch K1, the second fuse F2, the first inductance L1 are sequentially connected, and the first inductance L1 other end connects respectively 3rd controllable silicon S13 positive pole, the 4th controllable silicon S14 negative pole, after the 3rd controllable silicon S13 negative pole concatenates the 7th fuse F7 The first electric capacity C1 positive pole is connect, the 4th controllable silicon S14 positive pole connects the first electric capacity C1 negative pole；The line port C, first open Close K1, the 3rd fuse F3, the first inductance L1 to be sequentially connected, the first inductance L1 other end connects the 5th controllable silicon S15 respectively Positive pole, the 6th controllable silicon S16 negative pole, the 5th controllable silicon S15 negative pole concatenates the 7th fuse F7 and is followed by the first electric capacity C1 Positive pole, the 6th controllable silicon S16 positive pole connects the first electric capacity C1 negative pole；

When first switch K1 is closed, bank electricity carries out voltage stabilizing by the first inductance L1, and three are being carried out by six controllable silicons Phase controlled rectification, the first electric capacity C1 are filtered.

(2) battery module

The battery module include be sequentially connected in series the 8th fuse F8, the 5th switch K5, the 9th fuse F9, electric power storage Pond E, the other end of the 8th fuse F8 are connected with the first electric capacity C1 positive pole, battery E negative pole and the first electric capacity C1 Negative pole connection.

When the 5th switch K5 closures, battery E according to circumstances can be charged from rectification module to it, or to inversion module Electric discharge.

(3) inversion module

The inversion module includes the second electric capacity C2, the first insulated gate bipolar transistor S21, the second insulated gate bipolar Transistor S22, the 3rd insulated gate bipolar transistor S23, the 4th insulated gate bipolar transistor S24, the 5th insulated gate bipolar Transistor npn npn S25, the 6th insulated gate bipolar transistor S26, transformer T1, the 4th 1 bidirectional triode thyristor S41, the four or two on ship Bidirectional triode thyristor S42, the four or three bidirectional triode thyristor S43；

Transformer T1 uses triangle-star connection on the ship, and its delta connection terminates line port U, V, W, its Star connection terminates line port X1, Y1, Z1 and zero line；The line port W other end connects the first insulated gate bipolar respectively The colelctor electrode of transistor S21 emitter stage, the second insulated gate bipolar transistor S22, the first insulated gate bipolar crystal Pipe S21 colelctor electrode connects the second electric capacity C2 positive pole, the first electric capacity C1 positive pole, the second insulated gate bipolar transistor respectively S22 emitter stage connects the second electric capacity C2 negative pole, the first electric capacity C1 negative pole respectively；The line port V other end connects respectively Three insulated gate bipolar transistor S23 emitter stage, the 4th insulated gate bipolar transistor S24 colelctor electrode, the described 3rd is exhausted Edge grid bipolar transistor S23 colelctor electrode connects the second electric capacity C2 positive pole, the first electric capacity C1 positive pole, the 4th insulated gate respectively Bipolar transistor S24 emitter stage connects the second electric capacity C2 negative pole, the first electric capacity C1 negative pole respectively；Line port U's is another One end connects the 5th insulated gate bipolar transistor S25 emitter stage, the 6th insulated gate bipolar transistor S26 current collection respectively Pole, the colelctor electrode of the 5th insulated gate bipolar transistor S25 are meeting the second electric capacity C2 positive pole, the first electric capacity C1 just respectively Pole, the 6th insulated gate bipolar transistor S26 emitter stage connect the second electric capacity C2 negative pole, the first electric capacity C1 negative pole respectively； The line port X, the 4th switch K4, the 4th 1 bidirectional triode thyristor S41, line port X1 are sequentially connected；The line port Y, the 4th switch K4, the four or two bidirectional triode thyristor S42, line port Y1 are sequentially connected；The line port Z, the 4th switch K4, Four or three bidirectional triode thyristor S43, line port Z1 are sequentially connected.

When first switch K1 is closed, bank electricity is powered to inversion module, and the 5th switch K5 closures, battery can be to inverse Becoming module to be powered, the electric current of bank electricity and/battery is filtered by the second electric capacity C2, then by six insulated gate bipolars Transistor npn npn (IGBT) carries out inversion, carries out triangle-Star transformation through transformer T1 on ship, can reduce higher hamonic wave, three Bidirectional triode thyristor control output break-make and output voltage size, are finally transported to Ship Power Station by electric energy by grid-connected switch K6 In.

When bank electricity and battery are also turned on, the method for supplying power to carried out on demand with storage battery power supply of being powered using bank electricity, Now, rectification module, battery module, the working method of inversion module are as follows：Close first switch K1, the 5th switch K5, the After four switch K4, when the electric current at ABC is more than the electric current at XYZ, rectification module charges to battery module, works as ABC When the electric current at place is less than the electric current at XYZ, battery module discharges inversion module, and the electric current at ABC is equal at XYZ Electric current when, battery module does not work.

(4) bank electricity is the same as the direct supply line of frequency

The bank electricity includes the 3rd switch K3 with frequency directly supply line；Docked with described one end of the 3rd switch K3 The input port connection of module, its other end are connected with the output port to connection module.

(5) bank electricity presses supply line with frequency modulation

The bank electricity includes second switch K2, the 4th fuse F4, the 5th fuse F5, the 6th with frequency modulation pressure supply line Fuse F6, the 3rd 1 bidirectional triode thyristor S31, the three or two bidirectional triode thyristor S32, the three or three bidirectional triode thyristor S33；The docking The input port of module is three-line port A, B, C of three-phase alternating current electric line, and its output port is three-phase alternating current electric line Three-line port x, Y, Z；The second switch K2, the 4th switch K4 are separately positioned on three-line；

Line port A is sequentially connected in series second switch K2, the 4th fuse F4, the 3rd 1 bidirectional triode thyristor S31, the 4th switch K4, line port X；Line port B is sequentially connected in series second switch K2, the 5th fuse F5, the three or two bidirectional triode thyristor S32, Four switch K4, line port Y；Line port C is sequentially connected in series second switch K2, the 6th fuse F6, the three or three bidirectional triode thyristor S33, the 4th switch K4, line port Z.

The controllable output break-make of three bidirectional triode thyristors and output voltage size.

When the frequency of bank electricity and ship electricity is different, if bank electricity be 50Hz, when ship electricity is 60Hz, then in seamless switching completion of powering Afterwards, bank electricity is still needed to carry out frequency conversion by rectification module and inversion module, and now first switch K1 is remained closed, second switch K2 and 3rd switch K3 is remained open, and is docked by bank electricity and is powered with conversion power supply circuit.That is bank electricity docking and conversion power supply line The effect on road has two, first, docking, that is, realize that bank electricity is docked with ship electricity seamless switching, second, conversion power supply, i.e., without seaming and cutting After changing docking, continue to provide conversion power supply of the bank electricity to ship electricity.

When the frequency of bank electricity and ship electricity is identical, when such as the frequency of bank electricity and ship electricity being 50Hz, then in power supply seamless switching After the completion of, without carrying out frequency conversion by rectification module and inversion module.Now, if bank electricity is identical with the voltage of ship electricity, with regard to nothing Pressure regulation need to be carried out, i.e., intelligent control AC voltage adjusting need not be carried out using bidirectional triode thyristor, can now disconnect first switch K1, close The socket of the cable of bank electricity, using bank electricity with the direct supply line of frequency, is directly connected, makes bank by the 3rd switch K3 with Ship Power Station Electricity is directly to ship power supply；If bank electricity is different from the voltage of ship electricity, there is still a need for pressure regulation, now disconnects first switch K1, Second switch K2 is closed, supply line is pressed with frequency modulation using bank electricity, by bidirectional triode thyristor by the socket and ship of the cable of bank electricity Oceangoing ship power station connects, to ship power supply after bidirectional triode thyristor progress intelligent control AC voltage adjusting.The intelligent control AC voltage adjusting is specific It can be controlled, will not be described here using Intelligence Feedback circuit of the prior art.

The method that the ship control of the present embodiment connects bank electricity comprises the following steps：

Step 11：Control module is connected with to connection module；Control module is connected with Ship Power Station, control module detection ship The load current in oceangoing ship power station, load power；The output port of connection module is connected by grid-connected switch K6 with Ship Power Station, it is grid-connected K6 is switched to disconnect；Wherein, connection module, battery module and control module are set aboard ship；

Step 12：Using only bank electricity power supply mode；By the bank electricity transformer in bank electricity power station by the socket of the first cable with Input port ABC connections to connection module, closure first switch K1, the 4th switch K4, second switch K2 and the 3rd switch K3 are protected Hold disconnection；The rated current of the radical of control module detection cable and every cable, determine rectification pilot angle, rectification output direct current The parameter value of electric current；

Step 13：Grid-connected switch K6 is closed, the bearing power of control module control marine generator shifts to connection module, Enter electricity of navigating and connect bank electricity seamless switching, specifically include following steps：

Step 131：Close grid-connected switch K6；

Step 132：Control module is controlled to connection module, outer shroud control using inner ring control method and outer loop control method Method uses V/f control methods, and the target frequency of bank electricity transformer output is converted to by the target frequency of marine generator；Together When, output frequency and voltage using phase locking loop controlling method control to connection module；

Step 133：Outer loop control method is converted to using P/Q control methods by V/f control methods, controls marine generator Frequency and voltage, using Ship Power Station real time load power as target power, power transfer is carried out, inversion module power output is progressively Increase, marine generator power output are gradually reduced；Meanwhile the output frequency using phase locking loop controlling method control to connection module And voltage；

Step 134：When marine generator power output drop to predetermined power or it is following when, control module sends closing ship The notice of oceangoing ship generator, staff close marine generator, and power supply seamless switching is completed；Specifically, in the present embodiment Predetermined power is 5% marine generator rated power, and predetermined power size can also be adjusted on demand.

Step 14：If bank electricity power station is identical with the frequency of Ship Power Station, by the socket of the cable of bank electricity and ship electricity Stand connection, control module is connected by switching or other means the socket of the cable of control bank electricity with Ship Power Station, without whole Flow module and inversion module, directly powered from bank electricity power station to Ship Power Station；If the frequency of bank electricity power station and Ship Power Station is not Together, then control module does not close rectification module and inversion module；

Specifically, when the frequency of bank electricity and ship electricity is different, if bank electricity is 50Hz, when ship electricity is 60Hz, then in step 134 Power after the completion of seamless switching, bank electricity is still needed to carry out frequency conversion by rectification module and inversion module, and now first switch K1 is kept Closure, the switches of second switch K2 and the 3rd K3 are remained open, are docked by bank electricity and be powered with conversion power supply circuit.

When the frequency of bank electricity and ship electricity is identical, when such as bank electricity and ship electricity being 50Hz, then after the completion of seamless switching of powering, Without carrying out frequency conversion by rectification module and inversion module.Now, if the voltage of bank electricity and ship electricity is identical, without being become Pressure, it can now disconnect first switch K1, the switch K3 of closure the 3rd, using bank electricity with the direct supply line of frequency, directly by bank electricity The socket of cable is connected with Ship Power Station, makes bank electricity directly to ship power supply；If bank electricity is different from the voltage of ship electricity, still Transformation is needed, now disconnects first switch K1, closes second switch K2, supply line is pressed with frequency modulation using bank electricity, by two-way The socket of the cable of bank electricity is connected by controllable silicon with Ship Power Station, to ship power supply after bidirectional triode thyristor progress transformation.

Step 15：Battery module is connected with the rectification module to connection module, inversion module respectively, that is, closes the 5th and opens K5 is closed, battery module is connected with control module；

Step 16：The power supply mode carried out on demand with storage battery power supply using bank electricity power supply, it is continuously Ship Power Station power supply； When control module, which detects, is less than the electric current of its output port to the electric current of the input port of connection module, battery module is controlled Discharged to inversion module；It is more than the electric current of its output port to the electric current of the input port of connection module when control module detects When, then control rectification module to be charged to battery module；When control module is detected to electric current of the input port of connection module etc. When the electric current of its output port, battery module does not work.

Specifically, after having accessed the first cable in step 12, if the first cable capacity is more than ship load capacity, When being more than the electric current of its output port to the electric current of the input port of connection module, rectification module charges to battery module, stores The electricity of battery module is available for the possible period of want or need；If the first cable capacity is less than ship load capacity, i.e., to the defeated of connection module When the electric current of inbound port is less than the electric current of its output port, battery module discharges to inversion module, plays the work of supplementary power With.If the first cable capacity is less than ship load capacity, need to continue to increase new cable, can be by the second cable cable rolling Machine is drawn on ship and being docked, and is repeated the above steps, i.e., when the total capacity of the first cable and the second cable is more than ship During oceangoing ship load capacity, i.e., when being more than the electric current of its output port to the electric current of the input port of connection module, rectification module is to electric power storage Pond module charging, the electricity of battery module are available for the possible period of want or need；If the total capacity of the first cable and the second cable is less than ship During oceangoing ship load capacity, i.e., when being less than the electric current of its output port to the electric current of the input port of connection module, battery module is to inverse Become module discharge, play a part of supplementary power.If the total capacity of the first cable and the second cable is held still less than ship load Amount, then repeat the above steps, increase new cable, such as the 3rd cable, the 4th cable, until cable total capacity is more than or equal to ship The load capacity in oceangoing ship power station.

In this process, because the folding and unfolding and connection of cable need to expend certain time, battery module is as interim Power supply, play a part of supplementary power, without waiting all cables to be just powered after all connecting or power switching.

To pull out cable, reduce bank electricity delivery, then can take the contrary operation with step 16, such as pull out the 3rd electricity After cable, the 4th cable, if the total capacity of remaining first cable and the second cable is less than ship load capacity, that is, mould is docked When the electric current of the input port of block is less than the electric current of its output port, battery module discharges to inversion module, plays supplement and supplies The effect of electricity.Consequently, it is possible to because the supplementary power of battery module acts on, in power supply process, cable can be adjusted flexibly Quantity.

The battery can be specifically multiple batteries batteries in parallel formed, and its specification can be according to specific capacity Need to select, it is assumed that accumulator capacity S₁=K₁Ah, with Ship Power Station rated capacity S₂=K₂VA powers half an hour, then S₁= 0.5S₂/K₂V。

In the present embodiment, step 16 employs bank electricity power supply and electric power storage during Ship Power Station power supply is continuously The power supply mode that pond power supply is carried out on demand, and in other embodiments, only bank electricity power supply mode or only electric power storage can also be used Pond power supply mode, it can also switch at any time between three kinds of power supply modes as needed.Specific method is as follows：

(1) when using only bank electricity power supply mode, then first switch K1, second switch K2, the 3rd switch wherein the one of K3 Individual closure, the 5th switch K5 disconnect；

(2) when using only storage battery power supply mode, then first switch K1, second switch K2, the 3rd switch K3 disconnect, the Five switch K5 closures；

(3) when the method for supplying power to carried out on demand with storage battery power supply using bank electricity power supply, then first switch K1, second switch K2, the 3rd switch K3 one of closure, the 5th switch K5 closures；When control module detects the input port to connection module Electric current be less than its output port electric current when, control battery module to inversion module discharge；When control module detects pair When the electric current of the input port of connection module is more than the electric current of its output port, then rectification module is controlled to be charged to battery module； When control module, which detects, is equal to the electric current of its output port to the electric current of the input port of connection module, battery module not work Make.

When ship needs offshore, then the contrary operation of above-mentioned steps is taken, be specially：

Step 17：Start marine generator, marine generator is connected with to connection module, then the load work(to connection module Rate shifts to marine generator, throttle plus-minus operation can be coordinated on ship, when the bearing power to connection module is reduced to predetermined power When (the present embodiment is 5% marine generator rated power) or following, grid-connected switch K6 is disconnected, completes power supply seamless switching； Finally close ship control and connect bank electricity device, and disconnect cable.

Ship, which connects bank electricity, can realize ship energy saving and harbour emission reduction environmental protection.Using 2012 Poland Sweden between certain ferry boat as Example, stops 3 hours at Polish harbour, stops at Sweden harbour 7 hours, with respect to generating/bank electricity cost, Sweden, Poland are respectively daily 724/356 dollar, 1759/678 dollar, use bank electricity instead and save 1449 dollars daily.And MariTerm AB consultation report is pointed out The indirect cost of European Union member countries' yard craft generating burning heavy diesel fuel discharge and noise is more than 10 times of direct cost.China harbour If 80% ship that reaches port connects bank electricity, annual energysaving effectiveness is up to more than 1,900,000,000 yuan, and the social benefit of port environmental protection is more Significantly.

The ship control of the present embodiment connects bank electricity device and method, can select a variety of power supply modes, and the ship control connects bank electricity device Installation aboard ship, therefore ship electricity docked with bank electricity when, can be controlled from ship, in control process, ship's staff without Power supply need to can be controlled according to the situation of Ship Power Station in time, convenience and high-efficiency with person on shore's compounding practice；Second, Ship electricity and the slitless connection of bank electricity can be realized, in bank electricity and ship electricity power switching, equipment on board is without power-off；3rd, often Platform ship control bank electricity device can be designed according to the situation of different ships, set the docking parameter for being best suitable for the ship, reach high Accuracy Matching, enable the parameters such as voltage, the frequency of docking and power supply more stable, improve Supply Security and power supply quality；The Four, after being arranged on to connection module on ship, it is directly connected to Ship Power Station, and the voltage of input is adjusted into ship institute to connection module Be directly output to Ship Power Station after needing voltage, avoid in the prior art, the service of connection devices on the bank also need to after transformation through Pressure drop caused by long-distance cable, in order to offset pressure drop, it is necessary to improve output voltage by complicated intelligent control, thus add The defects of big enforcement difficulty；5th, for the higher ship of power load, folding and unfolding and docking can be carried out respectively to cable, When the number of cables of connection not yet can meet ship power load, by the way of battery supplementary power, can flexibly pacify The folding and unfolding and docking of cable are arranged, can quickly be come into operation and fast shut-off, improves power supplying efficiency, and is more than in cable capacity In the case of ship power load, battery can be charged, in case of need；6th, can be according to different frequency The ship of power station standard be powered, avoid in the prior art, because bank electricity and ship electricity have differences in the standard of power station, The problem of causing Ship Power Station and very big generator control difference, (counts, more than 60% international boat according to International Maritime Organization Ship is transported using 450V/60Hz electricity systems, and more than 60% power supply on the bank is 400V/50Hz electricity system).

Embodiment two

The ship control of the present embodiment two connects that bank electricity device is identical with embodiment one, and the main distinction is that ship control connects bank electricity method, The ship control of the present embodiment connects bank electricity method and comprised the following steps：

Step 21：Will be to connection module, battery module, control module installation aboard ship；By control module and to connection module Connection；Control module is connected with Ship Power Station, the load current of control module detection Ship Power Station, load power；To connection module Output port be connected by grid-connected switch K6 with Ship Power Station, grid-connected switch K6 disconnects；

Step 22：Using only storage battery power supply mode；By battery module respectively with the rectification module to connection module, inversion Module connects, that is, closes the 5th switch K5, the 4th switch K4, battery module is connected with control module；First switch K1, Two switch K2, the 3rd switch K3 are remained open；

Step 23：Grid-connected switch K6 is closed, the bearing power of marine generator shifts to connection module, works as marine generator Power output drop to predetermined power or it is following when, marine generator close, power supply seamless switching complete；Specifically, this implementation The marine generator rated power that predetermined power in example is 5%, predetermined power size can also be adjusted on demand.

Step 24：Socket of the bank electricity transformer in bank electricity power station by cable and the input port ABC to connection module are connected Connect；

Step 25：When the frequency of bank electricity and ship electricity is identical, then frequency conversion is carried out without pass through rectification module and inversion module；This When, if bank electricity is identical with the voltage of ship electricity, without transformation is carried out, it can now disconnect first switch K1, the switch of closure the 3rd K3, using bank electricity with the direct supply line of frequency, directly the socket of the cable of bank electricity is connected with Ship Power Station, make bank electricity directly to Ship power supply；If bank electricity is different from the voltage of ship electricity, there is still a need for transformation, now disconnects first switch K1, closure second K2 is switched, supply line is pressed with frequency modulation using bank electricity, is connected the socket of the cable of bank electricity and Ship Power Station by bidirectional triode thyristor Connect, to ship power supply after bidirectional triode thyristor progress transformation.If bank electricity power station is different from the frequency of Ship Power Station, first is closed Switch K1, the switches of second switch K2 and the 3rd K3 is remained open, the radical of control module detection cable and every cable it is specified Electric current, determine rectification pilot angle, the parameter value of rectification output DC current；

Step 26：The power supply mode carried out on demand with storage battery power supply using bank electricity power supply, it is continuously Ship Power Station power supply； When control module, which detects, is less than the electric current of its output port to the electric current of the input port of connection module, battery module is controlled Discharged to inversion module；It is more than the electric current of its output port to the electric current of the input port of connection module when control module detects When, then control rectification module to be charged to battery module；When control module is detected to electric current of the input port of connection module etc. When the electric current of its output port, battery module does not work.

It is identical with embodiment one, new cable can be increased on demand, until cable total capacity is more than or equal to Ship Power Station Load capacity.

Identical with embodiment one, step 26 employs bank electricity power supply and stored during Ship Power Station power supply is continuously The power supply mode that battery powered is carried out on demand, and in other embodiments, only bank electricity power supply mode can also be used or only stored Battery powered mode, it can also switch at any time between three kinds of power supply modes as needed.

Step 27：Start marine generator, marine generator is connected with to connection module, then the load work(to connection module Rate shifts to marine generator, throttle plus-minus operation can be coordinated on ship, when the bearing power to connection module is reduced to predetermined power When (the present embodiment is 5% marine generator rated power) or following, grid-connected switch K6 is disconnected, completes power supply seamless switching； Finally close ship control and connect bank electricity device, and disconnect cable.

The present embodiment two and the main distinction of embodiment one are that during seamless switching of powering, embodiment one uses Be only bank electricity power supply mode (step 12), and embodiment two is using only storage battery power supply mode (step 22)；In bank electricity After completing seamless switching with ship electricity, embodiment one adds storage battery power supply, powers on demand to enter with storage battery power supply using bank electricity Capable power supply mode, and embodiment two adds bank electricity power supply mode, is equally entered on demand with storage battery power supply using bank electricity power supply Capable power supply mode.In actual applications, the used power supply mode before bank electricity and ship electricity seamless switching can be selected on demand.

Embodiment three

The ship control of the present embodiment three connects that bank electricity device is identical with embodiment one, and the main distinction is that ship control connects bank electricity method, The ship control of the present embodiment connects bank electricity method and comprised the following steps：

Step 31：Will be to connection module, battery module, control module installation aboard ship；By control module and to connection module Connection；Control module is connected with Ship Power Station, the load current of control module detection Ship Power Station, load power；To connection module Output port be connected by grid-connected switch K6 with Ship Power Station, grid-connected switch K6 disconnects；

Step 32：Socket of the bank electricity transformer in bank electricity power station by cable and the input port ABC to connection module are connected Connect, closure first switch K1, the 4th switch K4, second switch K2 and the 3rd switch K3 are remained open；Control module detection cable Radical and every cable rated current, determine rectification pilot angle, rectification output DC current parameter value；

Step 33：Battery module is connected with the rectification module to connection module, inversion module respectively, that is, closes the 5th and opens K5 is closed, battery module is connected with control module；

Step 34：Grid-connected switch K6 is closed, the bearing power of marine generator shifts to connection module, works as marine generator Power output drop to predetermined power or it is following when, marine generator close, power supply seamless switching complete；Specifically, this implementation The marine generator rated power that predetermined power in example is 5%, predetermined power size can also be adjusted on demand；

In this step 34, after grid-connected switch K6 closures, before power supply seamless switching is completed, using bank electricity power supply and battery The power supply mode that power supply is carried out on demand, is less than its output port when control module detects to the electric current of the input port of connection module Electric current when, control battery module to inversion module discharge；When control module detects the electricity to the input port of connection module When stream is more than the electric current of its output port, then rectification module is controlled to be charged to battery module；When control module detects docking When the electric current of the input port of module is equal to the electric current of its output port, battery module does not work.But the reality of this step 33 The execution time is shorter, only about last for several seconds.

Step 35：When the frequency of bank electricity and ship electricity is identical, then frequency conversion is carried out without pass through rectification module and inversion module；This When, if bank electricity is identical with the voltage of ship electricity, without transformation is carried out, it can now disconnect first switch K1, the switch of closure the 3rd K3, using bank electricity with the direct supply line of frequency, directly the socket of the cable of bank electricity is connected with Ship Power Station, make bank electricity directly to Ship power supply；If bank electricity is different from the voltage of ship electricity, there is still a need for transformation, now disconnects first switch K1, closure second K2 is switched, supply line is pressed with frequency modulation using bank electricity, is connected the socket of the cable of bank electricity and Ship Power Station by bidirectional triode thyristor Connect, to ship power supply after bidirectional triode thyristor progress transformation.If bank electricity power station is different from the frequency of Ship Power Station, first switch K1 is remained closed, and the switches of second switch K2 and the 3rd K3 is remained open.

Step 36：The power supply mode carried out on demand with storage battery power supply using bank electricity power supply, it is continuously Ship Power Station power supply； When control module, which detects, is less than the electric current of its output port to the electric current of the input port of connection module, battery module is controlled Discharged to inversion module；It is more than the electric current of its output port to the electric current of the input port of connection module when control module detects When, then control rectification module to be charged to battery module；When control module is detected to electric current of the input port of connection module etc. When the electric current of its output port, battery module does not work.

Identical with embodiment one, step 36 employs bank electricity power supply and stored during Ship Power Station power supply is continuously The power supply mode that battery powered is carried out on demand, and in other embodiments, only bank electricity power supply mode can also be used or only stored Battery powered mode, it can also switch at any time between three kinds of power supply modes as needed.

Step 37：Start marine generator, marine generator is connected with to connection module, then the load work(to connection module Rate shifts to marine generator, throttle plus-minus operation can be coordinated on ship, when the bearing power to connection module is reduced to predetermined power When (the present embodiment is 5% marine generator rated power) or following, grid-connected switch K6 is disconnected, completes power supply seamless switching； Finally close ship control and connect bank electricity device, and disconnect cable.

The present embodiment three and the main distinction of embodiment one are that during seamless switching of powering, embodiment one uses Be only bank electricity power supply mode (step 12), and embodiment three accesses simultaneously using bank electricity and battery, powers on demand Mode (step 32 and 33).

The ship control of the present invention connects bank electricity device and method, and three kinds of power supply modes are provided for Ship Power Station：Only bank electricity is powered Mode, only storage battery power supply mode, bank electricity and battery are powered the power supply mode carried out on demand simultaneously, in power supply seamless switching During, can the intelligence in these three power supply modes as needed and during continued power after the completion of seamless switching Selection, and the free switching between these three power supply modes, the flexibility that ship pulls in shore to power can be greatly improved, improves power supply Efficiency.

Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Scope.

Claims

1. a kind of method that ship control connects bank electricity, it is characterised in that comprise the following steps：

Step 01：Control module is connected with to connection module；Control module is connected with Ship Power Station, control module detection ship electricity The load current and load power stood；The output port of connection module is connected by grid-connected switch with Ship Power Station, grid-connected switch Disconnect；Wherein, connection module, battery module and control module are set aboard ship；

Selection uses bank electricity and/or storage battery power supply mode；When using only bank electricity power supply mode, then step 02 is first carried out, jumped Step 03 is crossed, then performs step 04；When using only storage battery power supply mode, then step 02 is skipped, perform step 03, then hold Row step 04；When power supply mode common with battery using bank electricity power supply, then step 02 and step 03 are performed, then performs step Rapid 04, the sequencing of step 02 and step 03 is interchangeable；

Step 02：Socket of the bank electricity transformer in bank electricity power station by cable is connected with the input port to connection module, docked The input port of module is connected with output port, control module detection cable parameter, determines rectification parameter；

Step 03：Battery module is connected with the rectification module to connection module, inversion module respectively, by battery module and control Molding block connects；

Step 04：Grid-connected switch is closed, controls the bearing power of marine generator to be shifted to connection module；When marine generator is defeated Go out power drop to predetermined power or it is following when, close marine generator；

Step 05：Bank electricity power station and/or battery are continuously Ship Power Station power supply, and selection at any time is powered using only bank electricity One of three kinds of method of supplying power to that mode, only storage battery power supply mode or bank electricity are carried out on demand with storage battery power supply, three kinds of suppliers of electricity It is changeable between method；Specific method is as follows：

(2) when using only storage battery power supply mode, then the socket of cable is disconnected or to the input port of connection module and to connection module Output port connection；

(3) when the power supply mode carried out on demand with storage battery power supply using bank electricity, then battery module is connected with to connection module, And the socket of cable, the input port to connection module, the output port to connection module are sequentially connected；When control module detects pair When the electric current of the input port of connection module is less than the electric current of its output port, control battery module discharges to inversion module；When Control module detects when being more than the electric current of its output port to the electric current of the input port of connection module, then control rectification module to Battery module charges；It is equal to the electric current of its output port to the electric current of the input port of connection module when control module detects When, battery module does not work.

2. the method that ship control according to claim 1 connects bank electricity, it is characterised in that：In step 04, supplied using only bank electricity When electrically, the bearing power of marine generator is controlled to be shifted to connection module, specific method is that control module uses inner ring control Method and outer loop control method processed are controlled to connection module, are comprised the following steps：

Step 041：Using the outer loop control method of V/f control methods, bank electricity is converted to by the target frequency of marine generator and become The target frequency of depressor output；Meanwhile output frequency and voltage using phase locking loop controlling method control to connection module；

Step 042：Outer loop control method is converted into P/Q control methods by V/f control methods, control marine generator frequency and Voltage, using Ship Power Station real time load power as target power, carry out power transfer, the increase of inversion module power output, ship Generated output power declines；Meanwhile output frequency and voltage using phase locking loop controlling method control to connection module.

3. the method that ship control according to claim 1 connects bank electricity, it is characterised in that：In step 04, supplied using only bank electricity Electrically or bank electricity and storage battery power supply carry out on demand power supply mode when, after the completion of the power supply seamless switching of step 04, enter One step includes performing step 041：If bank electricity power station is identical with the frequency of Ship Power Station, by the socket and ship of the cable of bank electricity Oceangoing ship power station connects, and without rectification module and inversion module, is directly powered from bank electricity power station to Ship Power Station, using bank electricity with frequency Direct feeding system, or bank electricity press power supply mode with frequency modulation；If bank electricity power station is different from the frequency of Ship Power Station, step is skipped Rapid 041.

4. the method that ship control according to claim 1 connects bank electricity, it is characterised in that：In step 04 and/or step 05, adopt The power supply mode carried out on demand with storage battery power supply with bank electricity power supply, accesses an at least cable, when cable is total in step 02 When capacity is less than the load capacity of Ship Power Station, battery module discharges to inversion module, continues to increase cable, until cable is total Capacity is more than or equal to the load capacity of Ship Power Station.

5. the method that ship control according to any one of claim 1 to 4 connects bank electricity, it is characterised in that：In step 02, institute State the radical of cable data including cable and the rated current of every cable, the rectification parameter is that rectification pilot angle, rectification are defeated Go out the parameter value of DC current；The predetermined power is 5% marine generator rated power.

6. a kind of ship control connects the device of bank electricity, it is characterised in that：It is set aboard ship, including to connection module, battery module, control Molding block；The control module is connected with described to connection module, battery module, Ship Power Station respectively；The control module is used Load current and load power in detection Ship Power Station；The input port to connection module can pass through the socket and bank of cable The bank electricity transformer connection in power station, the output port to connection module are connected by grid-connected switch with Ship Power Station；

It is described to connection module include first switch, rectification module, inversion module and the 4th switch, the first switch with it is described right The input port connection of connection module, the 4th switch are connected with the output port to connection module；It is the first switch, whole Flow module, inversion module, the 4th switch are sequentially connected, the docking of composition bank electricity and conversion power supply circuit；The battery module point It is not connected with the rectification module, inversion module, the first switch, rectification module, battery module composition battery charging Circuit, the battery module, inversion module, the 4th switch composition battery discharging circuit.

7. ship control according to claim 6 connects the device of bank electricity, it is characterised in that：The input port to connection module is Three-line port A, B, C of three-phase alternating current electric line, its output port for three-phase alternating current electric line three-line port x, Y、Z；The rectification module includes the first fuse, the second fuse, the 3rd fuse, the 7th fuse, the first inductance, first Controllable silicon, the second controllable silicon, the 3rd controllable silicon, the 4th controllable silicon, the 5th controllable silicon, the 6th controllable silicon, the first electric capacity；Described One switch, the first inductance are separately positioned on three-line；4th switch is separately positioned on three-line；

The line port A, first switch, the first fuse, the first inductance are sequentially connected, and the other end of the first inductance connects respectively Positive pole, the negative pole of the second controllable silicon of the first controllable silicon are connect, the negative pole of the first controllable silicon concatenates the 7th fuse and is followed by the first electricity The positive pole of appearance, the positive pole of the second controllable silicon connect the negative pole of the first electric capacity；The line port B, first switch, the second fuse, First inductance is sequentially connected, and the other end of the first inductance connects the positive pole of the 3rd controllable silicon, the negative pole of the 4th controllable silicon respectively, the The negative pole of three controllable silicons concatenates the positive pole that the 7th fuse is followed by the first electric capacity, and the positive pole of the 4th controllable silicon connects the negative of the first electric capacity Pole；The line port C, first switch, the 3rd fuse, the first inductance are sequentially connected, and the other end of the first inductance connects respectively Positive pole, the negative pole of the 6th controllable silicon of the 5th controllable silicon are connect, the negative pole of the 5th controllable silicon concatenates the 7th fuse and is followed by the first electricity The positive pole of appearance, the positive pole of the 6th controllable silicon connect the negative pole of the first electric capacity；

The battery module includes the 8th fuse, the 5th switch, the 9th fuse, the battery that are sequentially connected in series, and described the The other end of eight fuses is connected with the positive pole of the first electric capacity, and the negative pole of battery is connected with the negative pole of the first electric capacity.

8. ship control according to claim 7 connects the device of bank electricity, it is characterised in that：The inversion module includes the second electricity Appearance, the first insulated gate bipolar transistor, the second insulated gate bipolar transistor, the 3rd insulated gate bipolar transistor, the 4th Insulated gate bipolar transistor, the 5th insulated gate bipolar transistor, the 6th insulated gate bipolar transistor, transformer on ship, 4th 1 bidirectional triode thyristor, the four or two bidirectional triode thyristor and the four or three bidirectional triode thyristor；

Transformer uses triangle-star connection, its delta connection termination line port U, V, W on the ship, and its star connects Method terminates line port X1, Y1, Z1 and zero line；The line port W other end connects the first insulated gate bipolar transistor respectively Emitter stage, the colelctor electrode of the second insulated gate bipolar transistor, the colelctor electrode of first insulated gate bipolar transistor point Positive pole, the positive pole of the first electric capacity of the second electric capacity are not connect, and the emitter stage of the second insulated gate bipolar transistor connects the second electricity respectively The negative pole of the negative pole of appearance, the first electric capacity；The line port V other end connects the transmitting of the 3rd insulated gate bipolar transistor respectively Pole, the colelctor electrode of the 4th insulated gate bipolar transistor, the colelctor electrode of the 3rd insulated gate bipolar transistor connect respectively The positive pole of the positive pole of two electric capacity, the first electric capacity, the emitter stage of the 4th insulated gate bipolar transistor connect the negative of the second electric capacity respectively Pole, the negative pole of the first electric capacity；The line port U other end meets the emitter stage of the 5th insulated gate bipolar transistor, the 6th respectively The colelctor electrode of insulated gate bipolar transistor, the colelctor electrode of the 5th insulated gate bipolar transistor connect the second electric capacity respectively The positive pole of positive pole, the first electric capacity, the emitter stage of the 6th insulated gate bipolar transistor connect the negative pole of the second electric capacity, the first electricity respectively The negative pole of appearance；The line port X, the 4th switch, the 4th 1 bidirectional triode thyristor, line port X1 are sequentially connected；The circuit Port Y, the 4th switch, the four or two bidirectional triode thyristor, line port Y1 are sequentially connected；The line port Z, the 4th switch, the Four or three bidirectional triode thyristors, line port Z1 are sequentially connected.

9. the ship control according to any one of claim 6 to 8 connects the device of bank electricity, it is characterised in that：It is described to connection module Also include bank electricity with the direct supply line of frequency；The bank electricity includes the 3rd switch with frequency directly supply line；3rd switch One end be connected with the input port to connection module, its other end is connected with the output port to connection module.

10. the ship control according to any one of claim 6 to 8 connects the device of bank electricity, it is characterised in that：It is described to connection module Also include bank electricity and press supply line with frequency modulation；The bank electricity includes second switch, the 4th fuse, the with frequency modulation pressure supply line Five fuses, the 6th fuse, the 3rd 1 bidirectional triode thyristor, the three or two bidirectional triode thyristor, the three or three bidirectional triode thyristor；

The input port to connection module is three-line port A, B, C of three-phase alternating current electric line, and its output port is three Three-line port x, Y, Z of cross streams electric line；The second switch, the 4th switch are separately positioned on three-line；

Line port A is sequentially connected in series second switch, the 4th fuse, the 3rd 1 bidirectional triode thyristor, the 4th switch, line port X； Line port B is sequentially connected in series second switch, the 5th fuse, the three or two bidirectional triode thyristor, the 4th switch, line port Y；Circuit Port C is sequentially connected in series second switch, the 6th fuse, the three or three bidirectional triode thyristor, the 4th switch, line port Z.