CN206650442U - A kind of off-network activation system of ship Shaft-Generator - Google Patents
A kind of off-network activation system of ship Shaft-Generator Download PDFInfo
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- CN206650442U CN206650442U CN201720403219.5U CN201720403219U CN206650442U CN 206650442 U CN206650442 U CN 206650442U CN 201720403219 U CN201720403219 U CN 201720403219U CN 206650442 U CN206650442 U CN 206650442U
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Abstract
The utility model proposes a kind of off-network activation system of ship Shaft-Generator, including system electric machine control system, microcomputerized controller, grid-connected breaker and power factor corrector, the electric machine control system includes brushless dual-feed motor and the first PWM converter being connected, the microcomputerized controller is connected with electric machine control system and power factor corrector, and the power factor corrector is connected by grid-connected breaker with power network.The system can complete ship Shaft-Generator from off-network is started to again to grid-connected flow by the grid-connected breaker and DC source of setting, simplify manual operation, improve the reliability of system, and the ship Shaft-Generator can be directly initiated to off-grid operation, it is not necessary to consider that can ship electromechanics net normal work.
Description
Technical field
Motor Control Field is the utility model is related to, the off-network of more particularly to a kind of ship Shaft-Generator starts system
System.
Background technology
Ship Shaft Generator System abbreviation axle sends out system or axle machine system, is by host driven marine generator, utilizes
Main frame affluence power reaches the purpose of energy-conservation, can make full use of " the deposit surplus " of main frame.Using main frame shaft generator, Zao Zhi
Liu electricity Zhi epoch various countries have just applied on medium and small-scale vessel.With the development of Power Electronic Technique, shaft generator device conduct
Save operating cost and improve the effective means of cabin management service condition, various countries' shipbuilding circles is caused with its distinctive superiority
With the attention of shipping world.Its advantage is can effectively to utilize the main frame energy, economical and efficient；Beneficial to total energy approach；Saving expense
With, saving space, improvement cabin atmosphere；Lubricating oil consumption is reduced, reduces maintenance expense.Traditional ship Shaft-Generator
Direct current axle generator typically is used, although direct current axle generator voltage stabilization, the influence of rotating speed are relatively small.But due to straight
Stream maintenance of motor workload is big, and application at present aboard ship is very limited.
With the development of AC Motor Control technology, double feedback electric engine is increasingly apparent as the advantage of ship shaft translator.It is double
Generating aid is also referred to as AC excitation motor.Double feedback electric engine is the product that motor is combined with Power Electronic Technique and Numeric Control Technology, is
The new high-tech product of electromechanical integration.The stator of double feedback electric engine connects 50Hz common frequency power networks, and rotor is connected to the friendship of dynamic regulating frequency
Flow power supply.With regulation of the AC excitation automatic control system to the frequency of rotor excitation current, amplitude size and phase, double-fed
Motor is run under electronic operating mode or generating operation mode, and rotating speed can adjust change, and stator output voltage and frequency can be tieed up
Hold constant, can both adjust the power factor of power network, the stability of system can be improved again.Brushless dual-feed motor is alternating current generator
One kind, compared to common double feedback electric engine, its inapplicable brush and collector ring, reduce requirement and the cost of maintenance.It is more next
More turn into the main flow motor of ship Shaft-Generator.If the Shaft-Generator of brushless dual-feed motor is supplied using ship electromechanics net
The mode of electricity starts, and not only increases the quantity of Shaft-Generator breaker, it is also desirable to increase system load, to manual operation
Requirement also uprise.The cost and error rate of shaft generator what time are added above.
The content of the invention
The technical problems to be solved in the utility model is：A kind of off-network activation system of ship Shaft-Generator is provided,
Which simplify manual operation, the reliability and security of system are improved.
What solution of the present utility model was realized in：A kind of off-network activation system of ship Shaft-Generator,
Including electric machine control system, the electric machine control system includes brushless dual-feed motor and the first PWM converter being connected, its
In, the off-network activation system also includes microcomputerized controller, grid-connected breaker and power factor corrector, the microcomputerized controller
It is connected with electric machine control system and power factor corrector, the power factor corrector passes through grid-connected breaker and power network phase
Even.
Another technical scheme of the present utility model is that on above-mentioned basis the power factor corrector includes filtering
Inductance, dc-link capacitance and the second PWM converter, second PWM converter pass through filter inductance and the grid-connected open circuit
Device one end is connected, the dc-link capacitance and the output end for being listed in second PWM converter.
Another technical scheme of the present utility model is on above-mentioned basis, in addition to DC source, and the DC source connects
It is connected on the both ends of dc-link capacitance.
Another technical scheme of the present utility model is that on above-mentioned basis the microcomputerized controller is DSP or monolithic
Machine or PLC.
As can be seen from the above technical solutions, the off-network of ship Shaft-Generator described in the utility model starts system
System, ship Shaft-Generator can be completed from off-network is started to again to grid-connected by the grid-connected breaker and DC source of setting
Flow, simplify manual operation, improve the reliability of system, and the ship Shaft-Generator can directly initiate to from
Network operation, it is not necessary to consider that can ship electromechanics net normal work.
Brief description of the drawings
Form a part of accompanying drawing of the present utility model to be used for providing further understanding to of the present utility model, this practicality is new
The schematic description and description of type is used to explain the utility model, does not form to improper restriction of the present utility model.
Fig. 1 is the structure chart of the off-network activation system of ship Shaft-Generator in a kind of embodiment of the utility model；
Fig. 2 is that the off-network of off-network activation system shown in Fig. 1 starts the flow chart of method.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings, the description of this part be only it is exemplary and explanatory,
There should not be any restriction effect to the scope of protection of the utility model.In addition, those skilled in the art's retouching according to this document
State, respective combination can be carried out to the feature in embodiment in this document and in different embodiments.
Term " first " in specification and claims of the present utility model and above-mentioned accompanying drawing, " second ", " the 3rd "
(if present)s such as " the 4 " is for distinguishing similar object, without for describing specific order or precedence.Should
The data that the understanding so uses can exchange in the appropriate case, so as to embodiment of the present utility model described herein, example
If implemented with the order in addition to those for illustrating or describing herein.In addition, term " comprising " and " having " and
Their any deformation, it is intended that cover it is non-exclusive include, for example, containing the process of series of steps or unit, side
Method, system, product or equipment are not necessarily limited to those steps clearly listed or unit, but may include not list clearly
Or for the intrinsic other steps of these processes, method, product or equipment or unit.
The utility model embodiment is as follows, as shown in figure 1, a kind of off-network activation system of ship Shaft-Generator, bag
Electric machine control system, microcomputerized controller, grid-connected breaker and power factor corrector are included, the electric machine control system includes being connected
The brushless dual-feed motor connect and the first PWM converter, wherein PWM converter be pulse width modulation type current transformer abbreviation, institute
State microcomputerized controller to be connected with electric machine control system and power factor corrector, the power factor corrector passes through grid-connected open circuit
Device is connected with power network.Preferably, the microcomputerized controller can be that DSP (digital signal processor) or single-chip microcomputer or PLC (can
Programmed logic controller), specific chip model and parameter, prior art is may be referred to, directly bought from the market, herein not
Repeat again.
On the basis of above-described embodiment, in another embodiment of the utility model, the power factor corrector includes filter
Ripple inductance, dc-link capacitance and the second PWM converter, second PWM converter by filter inductance with it is described grid-connected disconnected
Road device one end is connected, the dc-link capacitance and the output end for being listed in second PWM converter.The first PWM unsteady flows
Device and the second PWM converter are connected with the microcomputerized controller, receive the control signal of the microcomputerized controller, are for adjusting
Voltage magnitude, phase angle and frequency of system etc..In addition, the microcomputerized controller is also gathered by signal using unit at power network and nothing
The signals such as electric current, voltage, frequency and phase angle at brush double feedback electric engine, for exporting the control signal of corresponding PWM converter.
On the basis of above-described embodiment, in another embodiment of the utility model, in addition to DC source, the DC source connect
It is connected on the both ends of dc-link capacitance.
As shown in Fig. 2 a kind of off-network of above-mentioned off-network activation system starts method, idiographic flow is as follows：
S1, by DC source dc-link capacitance is charged, provide and initially encourage for the control side of brushless dual-feed motor
Magnetoelectricity stream, power side is set to induce alternating voltage；
S2, brushless dual-feed motor are voltage oriented using power side, if it is amplitude Um that power side q shaft voltages, which are 0, d shaft voltages,
After the power side voltage stabilization of ship Shaft-Generator, Voltage loop is accessed, is Um to Voltage loop d axle given voltages amplitude*,
Q axles are given as 0；
S3, after power side voltage increase extremely is exceeded into DC source voltage, power factor corrector PFC is opened, treats ship shaft
After band electricity generation system enters stable state, i.e., when busbar voltage and power side voltage are stable in set-point, ship shaft band hair
Electric system can realize off-grid operation；
If S4, ship Shaft-Generator will be incorporated into the power networks, after the step (3), pass through adjustment control side electric current
Frequency change the frequency of power side voltage, after the amplitude of power side voltage, phase angle and frequency are all consistent with the electromechanical net of ship,
Grid-connected breaker is closed, ship Shaft-Generator is completed and the electromechanical net of ship is grid-connected.In off-network steady-state operation, power side voltage
Amplitude it is identical with given voltage amplitude, it is only necessary to adjust given voltage amplitude and the frequency of adjustment control side electric current, make power
The amplitude and phase of side voltage are consistent with line voltage, when power side voltage magnitude and phase identical with power network, it is possible to achieve
It is incorporated into the power networks.
Wherein, after the step (4), Shaft-Generator can also by adjust the current value of electric current loop torque come
The output power of Shaft-Generator is adjusted, realizes Shaft-Generator and ship electromechanics net cooperated power supply.
Wherein, after the step (4), Shaft-Generator can also be realized by disconnecting the grid-connected breaker
Individually power supply.
Wherein, in the step (1), the brushless dual-feed motor is voltage oriented using power side, will control side electric current
It is divided into exciting current and torque current, is run after marine diesel engine to stable state, an excitation is given in control side
Electric current, power side is induced a stable three-phase alternating voltage, be brushless dual-feed motor and system control cabinet radiator fan
Power supply.
As can be seen from the above technical solutions, the off-network of ship Shaft-Generator described in the utility model starts system
System, ship Shaft-Generator can be completed from off-network is started to again to grid-connected by the grid-connected breaker and DC source of setting
Flow, simplify manual operation, improve the reliability of system, and the ship Shaft-Generator can directly initiate to from
Network operation, it is not necessary to consider that can ship electromechanics net normal work.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (4)
1. a kind of off-network activation system of ship Shaft-Generator, including electric machine control system, the electric machine control system bag
Include the brushless dual-feed motor being connected and the first PWM converter, it is characterised in that the off-network activation system also includes microcomputer control
Device, grid-connected breaker and power factor corrector processed, the microcomputerized controller and electric machine control system and power factor corrector
Connection, the power factor corrector are connected by grid-connected breaker with power network.
2. the off-network activation system of ship Shaft-Generator according to claim 1, it is characterised in that the power because
Plain adjuster includes filter inductance, dc-link capacitance and the second PWM converter, and second PWM converter passes through filtered electrical
Sense is connected with described grid-connected breaker one end, the dc-link capacitance and the output end for being listed in second PWM converter.
3. the off-network activation system of ship Shaft-Generator according to claim 2, it is characterised in that also including direct current
Source, the DC source are connected to the both ends of dc-link capacitance.
4. the off-network activation system of ship Shaft-Generator according to any one of claim 1 to 3, its feature exist
In the microcomputerized controller is DSP or single-chip microcomputer or PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720403219.5U CN206650442U (en) | 2017-04-17 | 2017-04-17 | A kind of off-network activation system of ship Shaft-Generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720403219.5U CN206650442U (en) | 2017-04-17 | 2017-04-17 | A kind of off-network activation system of ship Shaft-Generator |
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| CN206650442U true CN206650442U (en) | 2017-11-17 |
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| CN201720403219.5U Active CN206650442U (en) | 2017-04-17 | 2017-04-17 | A kind of off-network activation system of ship Shaft-Generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877400A (en) * | 2017-04-17 | 2017-06-20 | 湖南利能科技股份有限公司 | The off-network activation system and method for a kind of ship Shaft-Generator |
-
2017
- 2017-04-17 CN CN201720403219.5U patent/CN206650442U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877400A (en) * | 2017-04-17 | 2017-06-20 | 湖南利能科技股份有限公司 | The off-network activation system and method for a kind of ship Shaft-Generator |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210119 Address after: 411100 No.4 factory building, 28 Baishi Road, Jiuhua Economic Development Zone, Xiangtan City, Hunan Province Patentee after: Hunan shengtu Information Technology Co.,Ltd. Address before: 410205 No.11 workshop of Weisheng Science Park Phase II project, no.468 tongzipo West Road, Changsha high tech Industrial Development Zone, Hunan Province Patentee before: HUNAN LINENG TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |