CN106972547A - The control system and method for a kind of ship shaft generator and diesel generation cogeneration - Google Patents
The control system and method for a kind of ship shaft generator and diesel generation cogeneration Download PDFInfo
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- CN106972547A CN106972547A CN201710252085.6A CN201710252085A CN106972547A CN 106972547 A CN106972547 A CN 106972547A CN 201710252085 A CN201710252085 A CN 201710252085A CN 106972547 A CN106972547 A CN 106972547A
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- generator
- ship shaft
- diesel
- power
- generating system
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The present invention proposes the control system of a kind of ship shaft generator and diesel generation cogeneration, including electric machine control system, the electric machine control system includes brushless dual-feed motor and the first PWM converter being connected, wherein, the control system of the ship shaft generator and diesel generation cogeneration also includes grid-connected breaker and power factor corrector, electric machine control system and the power factor corrector connection, the power factor corrector is connected by grid-connected breaker with diesel generating system.When the power that ship Shaft-Generator is provided is inadequate, remaining power can be provided by diesel generating system, the stable operation of the ship machine equipment of guarantee system, while it is also ensured that the maximization of ship Shaft-Generator power output, reduces the oil consumption of diesel-driven generator.The invention also discloses the control method of a kind of ship shaft generator and diesel generation cogeneration.
Description
Technical field
The present invention relates to Motor Control Field, the control of more particularly to a kind of ship shaft generator and diesel generation cogeneration
System and method processed.
Background technology
Ship Shaft Generator System abbreviation axle sends out system or axle machine system, is, by host driven marine generator, to utilize
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 been 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 improves cabin atmosphere；Lubricating oil consumption is reduced, maintenance expense is reduced.Traditional ship Shaft-Generator
It is general to use direct current axle generator, although direct current axle generator voltage stabilization, the influence of rotating speed is relatively small.But due to straight
Flow maintenance of motor workload big, 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.Regulation with AC excitation automatic control system to the frequency, amplitude size and phase of rotor excitation current, 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.But it is due to the characteristic of brushless dual-feed motor, causes it in metasynchronism speed
When, control side can consume certain power, so as to cause the load capacity of ship Shaft-Generator to decline.If ship is in fortune
During row, occur passing a bridge or urgent danger prevention situation when, because rotating speed declines excessive, may result in Shaft-Generator
Generator operation is unstable.
The content of the invention
The technical problem to be solved in the present invention is：The control of a kind of ship shaft generator and diesel generation cogeneration is provided
System and method, are which solved when ship slows down, load capacity diminishes the problem of causing, while improving ship shaft band
The power output of electricity generation system.
What the solution of the present invention was realized in：A kind of control of ship shaft generator and diesel generation cogeneration
System, including electric machine control system, including electric machine control system, the electric machine control system are brushless double-fed including what is be connected
Machine and the first PWM converter, wherein, the control system of the ship shaft generator and diesel generation cogeneration is also including grid-connected
Breaker and power factor corrector, electric machine control system and the power factor corrector connection, the Active PFC
Device is connected by grid-connected breaker with diesel generating system.
Another technical scheme of the present invention is that on above-mentioned basis the power factor corrector includes filtered electrical
Sense, dc-link capacitance and the second PWM converter, second PWM converter pass through filter inductance and the grid-connected breaker
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 invention is on above-mentioned basis, in addition to DC source, and the DC source is connected to
The two ends of dc-link capacitance.
Another technical scheme of the present invention is that on above-mentioned basis the diesel generating system is also associated with load.
Another technical scheme of the present invention is on above-mentioned basis, additionally provides a kind of ship shaft generator and diesel oil
The control method of generating cogeneration, comprises the following steps：
S1, by vector controlled off-network startup is carried out to ship Shaft-Generator, and run to stable；
S2, detected by the three-phase voltage to diesel generating system, and calculate its voltage vector angle；
S3, the control side voltage vector angle by adjusting ship Shaft-Generator so that ship Shaft-Generator
Power side voltage vector angle is consistent with the voltage vector angle of diesel generating system, and is adjusted power side voltage magnitude by Voltage loop
After section to the voltage magnitude of diesel generating system, grid-connected breaker is closed, diesel generating system and ship shaft generator system is realized
Cogeneration of uniting is run.
Another technical scheme of the present invention is that on above-mentioned basis the step S1 is specially：
S11, by DC source dc-link capacitance is charged, provide and initially encourage for the control side of brushless dual-feed motor
Magnetoelectricity stream；
S12, brushless dual-feed motor are voltage oriented using power side, when the power side voltage stabilization of ship Shaft-Generator
Afterwards, Voltage loop is accessed；
S13, when power side voltage magnitude exceed DC source amplitude after, open power factor corrector, work as busbar voltage
When being stable in set-point with power side voltage, ship Shaft-Generator realizes that off-network starts.
Another technical scheme of the present invention is on above-mentioned basis, after the step S3, when diesel generation system
After system is run with ship Shaft-Generator cogeneration, because the power side voltage magnitude of ship shaft generator system is by diesel oil
The control of electricity generation system, therefore, cuts off the Voltage loop of brushless double-fed machine controller, only retains electric current loop, pass through electric current loop pair
The watt current and reactive current of brushless dual-feed motor are controlled.
Another technical scheme of the present invention is on above-mentioned basis, by electric current loop to the active of brushless dual-feed motor
Electric current and reactive current are controlled specific method：
The output end of detection diesel generating system is first passed through, the instantaneous power value of diesel generating system is obtained；
When the active power that diesel generating system is exported is more than 0, then the watt current of brushless dual-feed motor is improved, makes bavin
The active power of fry dried food ingredients electric system output is close to 0；
When the reactive power output of diesel generating system is more than 0, then the reactive current of brushless dual-feed motor is improved, makes bavin
The idle output of fry dried food ingredients electric system is close to 0；
When the active power or reactive power that diesel generating system is exported exceed the energy of brushless dual-feed motor power output
During power scope, then the given value of current of brushless dual-feed motor is transferred to maximum so that ship Shaft-Generator power output is most
Bigization
As can be seen from the above technical solutions, the control of ship shaft generator of the present invention and diesel generation cogeneration
System and method processed, it is after diesel generating system and ship Shaft-Generator cogeneration, by electric current loop to brushless double
The watt current and reactive current of generating aid are controlled, remaining when the power that ship Shaft-Generator is provided is inadequate
Power can be provided by diesel generating system, it is ensured that the stable operation of the ship machine equipment of system, while it is also ensured that ship shaft
Band electricity generation system power output is maximized, and reduces the oil consumption of diesel-driven generator.
Brief description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.
Fig. 1 is ship shaft generator and the knot of the control system of diesel generation cogeneration in one embodiment of the present invention
Composition；
Fig. 2 is a kind of control system architecture figure of brushless dual-feed motor in ship Shaft-Generator described in Fig. 1；
Fig. 3 is a kind of electric machine control system knot of ship shaft generator and diesel generation combined generating system described in Fig. 1
Composition；
Fig. 4 is ship shaft generator and the stream of the control method of diesel generation cogeneration in one embodiment of the present invention
Cheng Tu.
Embodiment
The present invention will be described in detail below in conjunction with the accompanying drawings, and the description of this part is only exemplary and explanatory, should not
There is any restriction effect to protection scope of the present invention.In addition, description of the those skilled in the art according to this document, can be right
Feature in this document in embodiment and not in be the same as Example carries out respective combination.
Term " first ", " second ", " the 3rd " " in description and claims of this specification and above-mentioned accompanying drawing
The (if present)s such as four " are for distinguishing similar object, without for describing specific order or precedence.It should manage
The data that solution is so used can be exchanged in the appropriate case, so as to embodiments of the invention described herein, for example can be with
Order in addition to those for illustrating or describing herein is implemented.In addition, term " comprising " and " having " and their times
What is deformed, it is intended that covering is non-exclusive to be included, for example, contain the process of series of steps or unit, 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 embodiment of the present invention is as follows, as shown in Figure 1 to Figure 3, a kind of ship shaft generator and diesel generation cogeneration
Control system, including electric machine control system, including electric machine control system, the electric machine control system include brushless pair be connected
Generating aid and the first PWM converter, wherein, the control system of the ship shaft generator and diesel generation cogeneration also includes
Grid-connected breaker and power factor corrector, electric machine control system and the power factor corrector connection, the power factor (PF)
Adjuster is connected by grid-connected breaker with diesel generating system.
On the basis of above-described embodiment, in another embodiment of the present invention, the power factor corrector includes filtered electrical
Sense, dc-link capacitance and the second PWM converter, second PWM converter pass through filter inductance and the grid-connected breaker
One end is connected, the dc-link capacitance and the output end for being listed in second PWM converter.
On the basis of above-described embodiment, in another embodiment of the present invention, in addition to DC source, the DC source is connected to
The two ends of dc-link capacitance.
On the basis of above-described embodiment, in another embodiment of the present invention, the diesel generating system is also associated with load.
As described in Figure 4, the control method of a kind of ship shaft generator and diesel generation cogeneration, comprises the following steps：
S1, by vector controlled off-network startup is carried out to ship Shaft-Generator, and run to stable；
S2, detected by the three-phase voltage to diesel generating system, and calculate its voltage vector angle；Specifically,
Voltage vector angleWherein, uαAnd uβIt is brushless double feed generator output voltage respectively in alpha and beta axles
Component；
S3, the control side voltage vector angle by adjusting ship Shaft-Generator so that ship Shaft-Generator
Power side voltage vector angle is consistent with the voltage vector angle of diesel generating system, and is adjusted power side voltage magnitude by Voltage loop
After section to the voltage magnitude of diesel generating system, grid-connected breaker is closed, diesel generating system and ship shaft generator system is realized
Cogeneration of uniting is run.
In the step S1, ship Shaft-Generator carries out off-network startup, ship shaft generator by vector controlled
System is divided into two parts of PFC and brushless dual-feed motor system.The control system of wherein brushless dual-feed motor is divided into two parts,
A part is that the control of power side voltage magnitude is realized by Voltage loop and electric current loop；Another part is by formula fr=fp+fc
Realize the control to power side electric voltage frequency, wherein fpIt is the frequency of power side voltage, fcIt is control side electric voltage frequency, frIt is electricity
The number of turns of machine rotation per second is multiplied by power side stator number of pole-pairs and control side stator number of pole-pairs sum；Control structure figure such as Fig. 2 institutes
Show.
On the basis of above-described embodiment, in another embodiment of the present invention, the step S1 is specially：
S11, by DC source dc-link capacitance is charged, provide and initially encourage for the control side of brushless dual-feed motor
Magnetoelectricity stream；
S12, brushless dual-feed motor are voltage oriented using power side, when the power side voltage stabilization of ship Shaft-Generator
Afterwards, Voltage loop is accessed；
S13, when power side voltage magnitude exceed DC source amplitude after, open power factor corrector, work as busbar voltage
When being stable in set-point with power side voltage, ship Shaft-Generator realizes that off-network starts.
On the basis of above-described embodiment, in another embodiment of the present invention, after the step S3, when diesel generation system
After system is run with ship Shaft-Generator cogeneration, because the power side voltage magnitude of ship shaft generator system is by diesel oil
The control of electricity generation system, therefore, cuts off the Voltage loop of brushless double-fed machine controller, only retains electric current loop, pass through electric current loop pair
The watt current and reactive current of brushless dual-feed motor are controlled, and its control structure figure is as shown in Figure 3.
On the basis of above-described embodiment, in another embodiment of the present invention, have by electric current loop to brushless dual-feed motor
Work(electric current and reactive current are controlled specific method：
The output end of detection diesel generating system is first passed through, the instantaneous power value of diesel generating system is obtained；Specifically, root
According to instantaneous power principle, the calculation formula of active power and reactive power can be obtained：Its
Middle udAnd uqComponent of the difference diesel-driven generator output voltage on d axles and q axles, idAnd iqDifference diesel-driven generator output current
Component on d axles and q axles；
When the active power that diesel generating system is exported is more than 0, then the watt current of brushless dual-feed motor is improved, makes bavin
The active power of fry dried food ingredients electric system output is close to 0；
When the reactive power output of diesel generating system is more than 0, then the reactive current of brushless dual-feed motor is improved, makes bavin
The idle output of fry dried food ingredients electric system is close to 0；
When the active power or reactive power that diesel generating system is exported exceed the energy of brushless dual-feed motor power output
During power scope, then the given value of current of brushless dual-feed motor is transferred to maximum so that ship Shaft-Generator power output is most
Bigization
As can be seen from the above technical solutions, the control of ship shaft generator of the present invention and diesel generation cogeneration
System and method processed, it is after diesel generating system and ship Shaft-Generator cogeneration, by electric current loop to brushless double
The watt current and reactive current of generating aid are controlled, remaining when the power that ship Shaft-Generator is provided is inadequate
Power can be provided by diesel generating system, it is ensured that the stable operation of the ship machine equipment of system, while it is also ensured that ship shaft
Band electricity generation system power output is maximized, and reduces the oil consumption of diesel-driven generator.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (8)
1. the control system of a kind of ship shaft generator and diesel generation cogeneration, including electric machine control system, the motor
Control system includes the brushless dual-feed motor that is connected and the first PWM converter, it is characterised in that the ship shaft generator with
The control system of diesel generation cogeneration also include grid-connected breaker and power factor corrector, the electric machine control system and
Power factor corrector is connected, and the power factor corrector is connected by grid-connected breaker with diesel generating system.
2. the control system of ship shaft generator according to claim 1 and diesel generation cogeneration, it is characterised in that
The power factor corrector includes filter inductance, dc-link capacitance and the second PWM converter, second PWM converter
It is connected by filter inductance with described grid-connected breaker one end, the dc-link capacitance is simultaneously listed in second PWM converter
Output end.
3. the control system of ship shaft generator according to claim 2 and diesel generation cogeneration, it is characterised in that
Also include DC source, the DC source is connected to the two ends of dc-link capacitance.
4. the control system of ship shaft generator according to any one of claim 1 to 3 and diesel generation cogeneration,
Characterized in that, the diesel generating system is also associated with load.
5. the control method of a kind of ship shaft generator and diesel generation cogeneration, it is characterised in that comprise the following steps：
S1, by vector controlled off-network startup is carried out to ship Shaft-Generator, and run to stable；
S2, detected by the three-phase voltage to diesel generating system, and calculate its voltage vector angle；
S3, the control side voltage vector angle by adjusting ship Shaft-Generator so that the power of ship Shaft-Generator
Side voltage vector angle is consistent with the voltage vector angle of diesel generating system, and by Voltage loop by power side voltage magnitude adjust to
After the voltage magnitude of diesel generating system, grid-connected breaker is closed, realizes that diesel generating system joins with ship Shaft-Generator
Close generator operation.
6. the control method of ship shaft generator according to claim 5 and diesel generation cogeneration, it is characterised in that
The step S1 is specially：
S11, by DC source dc-link capacitance is charged, initial excitation electricity is provided for the control side of brushless dual-feed motor
Stream；
S12, brushless dual-feed motor are voltage oriented using power side, after the power side voltage stabilization of ship Shaft-Generator,
Access Voltage loop；
S13, when power side voltage magnitude exceed DC source amplitude after, open power factor corrector, when busbar voltage and work(
When rate side voltage is stable in set-point, ship Shaft-Generator realizes that off-network starts.
7. the control method of ship shaft generator according to claim 5 and diesel generation cogeneration, it is characterised in that
After the step S3, after diesel generating system and the operation of ship Shaft-Generator cogeneration, due to ship shaft band
The power side voltage magnitude for being that generates electricity is controlled by diesel generating system, therefore, cuts off the electricity of brushless double-fed machine controller
Pressure ring, only retains electric current loop, the watt current and reactive current of brushless dual-feed motor is controlled by electric current loop.
8. the control method of ship shaft generator according to claim 7 and diesel generation cogeneration, it is characterised in that
Being controlled specific method to the watt current and reactive current of brushless dual-feed motor by electric current loop is：
The output end of detection diesel generating system is first passed through, the instantaneous power value of diesel generating system is obtained；
When the active power that diesel generating system is exported is more than 0, then the watt current of brushless dual-feed motor is improved, diesel oil is sent out
The active power of electric system output is close to 0；
When the reactive power output of diesel generating system is more than 0, then the reactive current of brushless dual-feed motor is improved, diesel oil is sent out
The idle output of electric system is close to 0；
When the active power or reactive power that diesel generating system is exported exceed the ability model of brushless dual-feed motor power output
When enclosing, then the given value of current of brushless dual-feed motor is transferred to maximum so that ship Shaft-Generator power output is maximized.
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| CN201710252085.6A CN106972547A (en) | 2017-04-17 | 2017-04-17 | The control system and method for a kind of ship shaft generator and diesel generation cogeneration |
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| CN201710252085.6A CN106972547A (en) | 2017-04-17 | 2017-04-17 | The control system and method for a kind of ship shaft generator and diesel generation cogeneration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113071653A (en) * | 2021-02-24 | 2021-07-06 | 康富科技有限公司 | Hair parallel machine system |
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| CN101510747A (en) * | 2009-03-27 | 2009-08-19 | 华中科技大学 | Excitation control system architecture and control method for marine diesel brushless double fed shaft generator |
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| CN101510747A (en) * | 2009-03-27 | 2009-08-19 | 华中科技大学 | Excitation control system architecture and control method for marine diesel brushless double fed shaft generator |
| WO2010108342A1 (en) * | 2009-03-27 | 2010-09-30 | 华中科技大学 | Excitation control system for marine diesel brushless doubly fed shaft generator and control method thereof |
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| CN206650443U (en) * | 2017-04-17 | 2017-11-17 | 湖南利能科技股份有限公司 | A kind of control system of ship shaft generator and diesel generation cogeneration |
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| CN113071653A (en) * | 2021-02-24 | 2021-07-06 | 康富科技有限公司 | Hair parallel machine system |
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