CN108116646A - A kind of watercraft electric propulsion system - Google Patents
A kind of watercraft electric propulsion system Download PDFInfo
- Publication number
- CN108116646A CN108116646A CN201711483321.1A CN201711483321A CN108116646A CN 108116646 A CN108116646 A CN 108116646A CN 201711483321 A CN201711483321 A CN 201711483321A CN 108116646 A CN108116646 A CN 108116646A
- Authority
- CN
- China
- Prior art keywords
- power
- control unit
- eedi
- propulsion system
- electric propulsion
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/21—Control means for engine or transmission, specially adapted for use on marine vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/21—Control means for engine or transmission, specially adapted for use on marine vessels
- B63H2021/216—Control means for engine or transmission, specially adapted for use on marine vessels using electric control means
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses a kind of watercraft electric propulsion systems, the motor driver that is formed including main control unit, by two inverters, the propeller that motor form is integrated by double winding and the DC grid being made of the commutator generator of more variable-ratios further include the EEDI data intelligences being arranged on main control unit and calculate and wireless sending module and the EEDI data collection servers that are connected by wireless communication and EEDI data intelligences calculating and wireless sending module；The system of the present invention has monitors full ship energy consumption automatically, calculates the function of power consumption values, the research of reduction EEDI energy efficiency indexes and the implementation of control policy proposed for IMO tissues, provides the data acquisition interface of a long-range real-time real ship.
Description
Technical field
The invention belongs to technical field of industrial control, and in particular to a kind of electric propulsion system for improving ship efficiency.
Background technology
Existing watercraft electric propulsion system, is two or a plurality of propulsion branch of configuration mostly, and every branch is equipped with one
Platform frequency converter and propulsion electric machine, but under the new concept new trend of green ship, existing watercraft electric propulsion system, ship energy
Effect property is all in urgent need to be improved.
Reduction ship efficiency to meet IMO propositions designs index（EEDI）Design requirement, for the ship energy of raising
Effect property, attended operation convenience and higher promotes equipment power density, it is necessary to invent a kind of ship efficiency of improving
Electric propulsion system.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of electric propulsion system for improving ship efficiency
System.
The technical solution adopted by the present invention to solve the technical problems is：A kind of watercraft electric propulsion system, including master control
Unit processed, the motor driver being made of two inverters, the propeller for integrating by a double winding motor form and by
The DC grid of the commutator generator composition of more variable-ratios, further includes the EEDI data intelligence meters being arranged on main control unit
Calculation and wireless sending module and the EEDI numbers being connected by wireless communication with the calculating of EEDI data intelligences and wireless sending module
According to server is received, the main control unit is connected with control panel, the main control unit and inverter using rigid line
Between, connected using rigid line between inverter and commutator generator and DC grid；It is used between two inverters
Multiple twin shielding rigid line connection.
A kind of watercraft electric propulsion system, the stator that double winding integrates motor are integrated in pipe tunnel, propeller
Blade is then fixed on inside rotor.
A kind of watercraft electric propulsion system, control panel select single inverter to move by mode switch button
Work or two inverters.
A kind of watercraft electric propulsion system is connected with twisted-pair shielded wire between the control unit of two inverters
It connects, by the use of analog quantity electric signal as power equalization signal, achievees the purpose that two output power inverters are balanced.
A kind of watercraft electric propulsion system, double winding are integrated between two groups of windings of motor without electrical correlation,
It may be regarded as two and individually promote branch, it can independent operating.
The second object of the present invention is to provide a kind of control method of watercraft electric propulsion system, and step is：
a）, main control unit detects the rate of load condensate in DC grid after system start-up, if being less than 50%, each rectification power generation
Machine selects the rotating speed run under corresponding power, to share different power according to fuel consumption characteristics curve inherently；
b）；If rate of load condensate is more than 50%, adjusted according to the analog signals that power distribution line exports between two inverters flat
The power of each commutator generator of weighing is allowed to equal；
c）If rate of load condensate 95%, inverter output signal reduces the power of commutator generator automatically；
d）If some in DC grid breaks down or trips suddenly in the commutator generator of network operation, main control unit
Moment gives inverter output rapid-transport line instruction, and the propeller power of commutator generator output at this time drops to the value guarantor of very little
DC grid nonoverload is demonstrate,proved, is delayed after a period of time, exports and is climbed according to default ramp time to one less than dynamic power
The performance number of limits value.
The beneficial effects of the invention are as follows：System intelligently produces real-time ship energy efficiency index（EEDI）, and pass through wireless network
Network is sent to long-range server as monitor log, and real ship data research data, which can be used as doing support, does theoretical research and design
Feedback.The configuration of this ship DC grid means that main exchange need not be installed again（AC）Distribution board, distributed rectifier and the change of current
Transformer, total losses lower and less harmonic distortion is more flexible in terms of system combination, adds free space and load
Cargo mass.Variable-ratio Rectification Power Factor allows diesel engine to be operated in optimal energy consumption point, has saved energy by generator set controller calculating
Source reduces discharge.Since propulsion system has used doublewound integrated motor, cardan shaft and gear-box are eliminated, greatly
Reduce mechanicalness noise, improve the life comfort of ship construction personnel, while the power for substantially increasing propulsion device is close
Degree.Double inversions of propulsion system, doublewound design so that after wherein an inverter breaks down, it is ensured that have another
It comes into operation, and double winding propeller only has the arrangement demand of a propeller, adds cabin spaces utilization rate and loading, load
Volume of passenger traffic.
Description of the drawings
Fig. 1 is the principle schematic of present system；
Fig. 2 is the Power Control system flow chart of the optimal energy consumption point of present system unit.
Each reference numeral is：1-main control unit, 2-inverter, 3-double winding integrate motor, 4-control panel,
6-commutator generator, 7-DC grid, 8-EEDI data intelligences calculate and wireless sending module, 9-EEDI data receivers clothes
Business device.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
With reference to shown in Fig. 1, the invention discloses a kind of watercraft electric propulsion system, including main control unit 1, inverse by two
Become motor driver that device 2 forms, integrate by a double winding propeller that motor 3 forms and by the whole of more variable-ratios
The DC grid 7 that generator 6 forms is flowed, the EEDI data intelligences being arranged on main control unit 1 is further included and calculates and wirelessly send out
It send module 8 and is taken by wireless communication with the EEDI data receivers that the calculating of EEDI data intelligences and wireless sending module 8 are connected
Business device 9, the main control unit 1 are connected with control panel 4 using rigid line, and main control unit 1 receives the finger of control panel 4
Order sends control signal to inverter 2 after processing, between the main control unit 1 and inverter 2, inverter 2 and rectification hair
It is connected between motor 6 and DC grid 7 using rigid line；Using multiple twin shielding rigid line connection between two inverters 2.
A kind of watercraft electric propulsion system, the stator that double winding integrates motor 3 are integrated in pipe tunnel, propeller
Blade is then fixed on inside rotor, without transmission shaft or change gear box, meanwhile, reduce vacuole effect in design to the greatest extent
Should, blade and sliding bearing are replaceable, and wearing terrain can also be easy to replace under water, and maintainability is fabulous.The machine of single spur track
Tool abrasion reduces much than traditional double branch propelling machineries loss, and compared with the electric pushing system of existing tradition, what is saved pushes away
Stepper motor axis, can be largely energy saving under the two collective effect.
The control panel 4 has mode switch button, and any switching laws are single action 1, and single action 2 and joint grasp vehicle, efficiency
The pattern one of which of control model；It is connected between the control unit of two inverters 2 with twisted-pair shielded wire, uses analog quantity
Electric signal achievees the purpose that two output power inverters are balanced as power equalization signal；The double winding integrates motor 3
Two groups of windings between without electrical correlation, may be regarded as two and individually promote branches, can independent operating.
This propulsion system is invented, automation degree of equipment can be improved, improves the safe coefficient of ship, saves ship arrangement
Space, power set redundancy improve natural energy resources and utilize, reduce energy consumption and environmental pollution, improve ship efficiency, and load IMO is new
The design specification requirement for gradually reducing EEDI indexes proposed.Mute performance high band carrys out more Comfortable Space of Living, and propeller is convenient
The advantages of changeing.
Commutator generator 6 of the present invention obtains unit using the fuzzy controller based on genetic algorithm by self study
Power-rotating speed minimum energy consumption point and matched curve, and can be according to operating mode automatic power generation adjustment system and dynamical system energy
Consumption so that system electricity generation system, propulsion system and auxiliary system are operated in energy consumption minimum, the function of the operating mode of minimum emissions.This
Invention system allows the service speed of commutator generator 6 variable, therefore can reach optimal specific fuel consumption.The energy pipe of ship
Reason system PMS employs power of the assembling unit balanced mode or fuel consumption rate mode of priority, is specifically shown in attached drawing 2.
The system function mainly includes ship energy efficiency index（EEDI）Intelligence in real time calculate and related data long-range prison
Visual function adjusts according to load behavior the power management system based on itself rotating speed reaches itself optimal energy consumption point by unit
（PMS）, switching promotes single action/linkage pattern, two inverter parallel outputs give double winding propeller power, inversion under linkage pattern
The functions such as device output power distribution.
The control interface of 1 standardization
The input/output interface of standardization can be used in the design interface, includes the input and output of DC 24V digital quantities, 4-20mA moulds
The input and output of analog quantity, standard fieldbus interface can be realized on different controllers.
2 control function introductions
1）Solid rocket engine pattern switching
Propulsion system may be configured as 1 pattern of single action, 2 pattern of single action, joint behaviour's vehicle pattern, efficiency control model.
Under 2 pattern of 1 pattern of single action or single action, integrated motor propulsor only has one group of winding and puts into operation, at this time basis
The operational mode of selection, inverter 1 or inverter 2 are run, and single inverter provides propulsion electric machine driving force at this time.
Under joint behaviour's vehicle pattern, two inverters are all run, and two groups of windings of integrated motor propulsor also put into operation, this
When two inversions between by power distribute analog signals that line exports come equal power, ensure that both sides power is equal so that
Output power optimizes.
Under efficiency control model, frequency converter, which operates in, ensures unit and the minimum power points of subsidiary engine specific consumption.
2）Power management system introduction
The DC grid that electric power station system is made of variable-ratio commutator generator group, unit quantity can arbitrarily be put into according to power demand
Or off-the-line.Generating set adjusts rotating speed according to actual power, while power management system can compare in real time in net power and can
With power, judge whether to need to limit propeller power.If realtime power is more than the 95% of available power, will dynamic limit power.
3）Power management system control function
Control function includes as follows：
First, system start after, detect power grid in load rate of grid whether more than 50%, if be less than 50%, each unit according to
Fuel consumption characteristics curve inherently, selects the rotating speed run under corresponding power, at this point, the power that each unit is shared is not
Deng.Power station is in fuel consumption rate mode of priority at this time, and each unit fuel consumption rate is minimum.
Second, it is more than 50% to detect load rate of grid in power grid, then the signal of line output, adjustment are distributed according to power
Each power of the assembling unit so that each power of the assembling unit is equal, and power station is in power of the assembling unit balanced mode at this time.Each generating unit speed may not
Together, but equally it is the rotating speed output state in than relatively low fuel consumption according to fuel consumption characteristics curve.
3rd, if 95%, the PMS systems that realtime power total in power grid is more than total available power can export dynamic limit
Power signal, inverter reduce power automatically according to output signal.
4th, if some in power grid breaks down suddenly in the unit of network operation or unit switch trips suddenly,
PMS systems can quickly give inverter output rapid-transport line instruction moment, and the propeller power exported at this time can drop to the one of very little
A value ensures power grid nonoverload, is delayed after a period of time, exports and is climbed according to default ramp time to one less than dynamic work(
The performance number of rate limits value.
5th, if the load of input power grid is larger manually, to ensure electrical network power station nonoverload, there is provided heavy duties to ask
Function is ask, if system-computed available power is sufficient, sending heavy duty allows the instruction of operation, starts input load.
The configuration of this ship DC grid, which also implies that, no longer needs bulky AC distribution and propulsion transformer, less electric power
Equipment and cable can increase ship space and load capacity, and equipment is allowed to arrange more flexible, engine efficiency higher, reduce dimension
Shield demand this point, improves dynamic response and mobility, can reduce energy consumption and disposal of pollutants, improve ship efficiency,
What load IMO was newly proposed gradually reduces the design specification requirement of EEDI indexes.So that it is more flexible in terms of system combination, it adds
Free space and loading amount of substance.Due to the use of doublewound integrated motor, cardan shaft and gear-box are eliminated, is greatly subtracted
Lack mechanicalness noise, and double inversions, doublewound Redundancy Design so that after wherein an inverter breaks down, it is ensured that have
Another comes into operation, and double winding propeller reduces the arrangement demand of a propeller, can also increase space availability ratio and
Loading, handling capacity of passengers.
The embodiment that the above-described embodiments merely illustrate the principles and effects of the present invention and part uses, for
For those of ordinary skill in the art, without departing from the concept of the premise of the invention, can also make it is several deformation and
It improves, these belong to protection scope of the present invention.
Claims (6)
1. a kind of watercraft electric propulsion system, it is characterised in that：Including main control unit（1）, by two inverters（2）Composition
Motor driver integrates motor by double winding（3）The propeller of composition and the commutator generator by more variable-ratios（6）Group
Into DC grid（7）, further include and be arranged on main control unit（1）On EEDI data intelligences calculate and wireless sending module
（8）And pass through wireless communication and the calculating of EEDI data intelligences and wireless sending module（8）The EEDI data reception services of connection
Device（9）, the main control unit（1）Control panel is connected with using rigid line（4）, the main control unit（1）With inversion
Device（2）Between, inverter（2）And commutator generator（6）With DC grid（7）Between using rigid line connect；Described two
Inverter（2）Between using multiple twin shielding rigid line connection.
2. a kind of watercraft electric propulsion system according to claim 1, which is characterized in that the double winding integrates motor
（3）Stator be integrated in pipe tunnel, propeller blade is fixed on inside rotor.
A kind of 3. watercraft electric propulsion system according to claim 2, which is characterized in that the control panel（4）It is logical
Cross mode switch button selection single inverter（2）Action or two inverters（2）.
A kind of 4. watercraft electric propulsion system according to claim 2, which is characterized in that two inverters（2）'s
It is connected between control unit with twisted-pair shielded wire, by the use of analog quantity electric signal as power equalization signal, it is defeated to reach two inversions
Go out the purpose of power equalization.
5. a kind of watercraft electric propulsion system according to claim 2, which is characterized in that the double winding integrates motor
（3）Two groups of windings between independent operating.
6. a kind of control method of watercraft electric propulsion system as described in claim 1, which is characterized in that step is：
a）, main control unit（1）DC grid is detected after system start-up（7）In rate of load condensate, if less than 50%, it is each whole
Flow generator（6）According to fuel consumption characteristics curve inherently, the rotating speed run under corresponding power is selected, to share not
Same power；
b）；If rate of load condensate is more than 50%, according to two inverters（2）Between power distribution line output analog signals tune
Section balances each commutator generator（6）Power be allowed to equal；
c）If rate of load condensate 95%, inverter（2）Output signal reduces commutator generator automatically（6）Power；
d）If DC grid（7）In some network operation commutator generator（6）It breaks down or trips suddenly, master control
Unit processed（1）Moment is to inverter（2）Rapid-transport line instruction is exported, at this time commutator generator（6）The propeller power drop of output
A value to very little ensures DC grid（7）Nonoverload is delayed after a period of time, exports and climbed according to default ramp time
The performance number for being less than dynamic power limits value to one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711483321.1A CN108116646B (en) | 2017-12-29 | 2017-12-29 | Ship electric propulsion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711483321.1A CN108116646B (en) | 2017-12-29 | 2017-12-29 | Ship electric propulsion system |
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| CN108116646A true CN108116646A (en) | 2018-06-05 |
| CN108116646B CN108116646B (en) | 2020-04-24 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109656219A (en) * | 2019-01-01 | 2019-04-19 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of distribution Ship Propeling centralized control equipment |
| CN109799705A (en) * | 2019-01-01 | 2019-05-24 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | A kind of thrust distribution method reducing the abrasion of dynamic positioning marine propeller |
| CN110893900A (en) * | 2018-09-13 | 2020-03-20 | 中国船舶重工集团公司第七一一研究所 | Ship electric propulsion system and ship |
| CN111559485A (en) * | 2019-02-13 | 2020-08-21 | 通用汽车环球科技运作有限责任公司 | Overshoot method for fast planing of ship |
| CN113525655A (en) * | 2020-02-28 | 2021-10-22 | 韩国海洋大学产学合作基金会 | Ship energy-power control management system based on machine learning |
| CN113572147A (en) * | 2021-07-22 | 2021-10-29 | 中国船舶重工集团公司第七一一研究所 | DC power supply and distribution system |
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| CN109656219B (en) * | 2019-01-01 | 2021-04-06 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Distributed ship propulsion centralized control device |
| CN109799705B (en) * | 2019-01-01 | 2022-01-14 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Thrust distribution method for reducing wear of dynamic positioning ship propeller |
| CN111559485A (en) * | 2019-02-13 | 2020-08-21 | 通用汽车环球科技运作有限责任公司 | Overshoot method for fast planing of ship |
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| CN113525655A (en) * | 2020-02-28 | 2021-10-22 | 韩国海洋大学产学合作基金会 | Ship energy-power control management system based on machine learning |
| CN113525655B (en) * | 2020-02-28 | 2023-08-25 | 韩国海洋大学产学合作基金会 | Ship energy-electric power control management system based on machine learning |
| CN113572147A (en) * | 2021-07-22 | 2021-10-29 | 中国船舶重工集团公司第七一一研究所 | DC power supply and distribution system |
| CN113572147B (en) * | 2021-07-22 | 2024-03-19 | 中国船舶集团有限公司第七一一研究所 | DC power supply and distribution system |
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