CN102530219A - Electric propulsion system - Google Patents
Electric propulsion system Download PDFInfo
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- CN102530219A CN102530219A CN2010105872501A CN201010587250A CN102530219A CN 102530219 A CN102530219 A CN 102530219A CN 2010105872501 A CN2010105872501 A CN 2010105872501A CN 201010587250 A CN201010587250 A CN 201010587250A CN 102530219 A CN102530219 A CN 102530219A
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Abstract
The invention relates to an electric propulsion system which comprises a power supply device, an electric propulsion device, an entire machine control device and a mechanical output device, wherein the electric propulsion device comprises a propulsion motor and two sets of inverters; the input of each set of inverter is connected with the power supply device; the output of each set of inverter is connected with the input of the propulsion motor; the output of the propulsion motor is connected with the mechanical output device; and the entire machine control device is respectively connected with each set of inverter, the power supply device and the mechanical output device. According to the electric propulsion system disclosed by the invention, different requirements of lightweight running and heavyweight running of marine vehicles for power can be met; and in addition, the electric propulsion system can continuously ensure that the marine vehicle smoothly returns to a port when the electric propulsion system has faults in the process of propulsion.
Description
Technical field
The present invention relates to the electric propulsion technology, relate in particular to a kind of electric propulsion system that is used for watercraft.
Background technology
The electric propulsion system of watercrafts such as trawlboat, small-sized yacht, boats and ships is to utilize the driven by power propulsion electric machine, and then promotes propeller blade through propulsion electric machine, and watercraft is gone.Electric propulsion system can significantly improve fuel economy, reduces disposal of pollutants, improves the watercraft tractive performance, has important techniques and economic benefit.
In the prior art, be under the situation of a fixed value at rating horsepower, when the horsepower output of the propulsion electric machine of electric propulsion system was rating horsepower, the operating efficiency of propulsion electric machine was the highest.Situation for different load-carryings; The propulsion electric machine of watercraft can move under different horsepower outputs, for example when underloading, with rating horsepower 30% as horsepower output; When heavy duty; With rating horsepower 80% as horsepower output, even when heavy duty, the required horsepower output of watercraft also possibly surpass rating horsepower.
Yet for the situation of underloading, its required horsepower output only accounts for the very little part of rating horsepower, and therefore, it has wasted surplus power; And for heavily stressed situation, the rating horsepower that propulsion electric machine also possibly occur can't satisfy the horsepower output of actual needs.So existing electric propulsion system can not adapt to underloading and the different demands of severe duty to the propulsion electric machine horsepower output.
Summary of the invention
The present invention provides a kind of electric propulsion system, can not adapt to underloading and the problem of severe duty to the different demands of power in order to overcome watercraft.
The present invention provides a kind of electric propulsion system; Comprise: electric supply installation, electric propulsion device, complete machine control setup and mechanical output unit; Said electric propulsion device comprises propulsion electric machine and two cover inverters; The input of every cover inverter is connected with said electric supply installation; The output of every cover inverter is connected with the input of said propulsion electric machine, and the output of said propulsion electric machine is connected with said mechanical output unit, and said complete machine control setup is connected with every cover inverter, said electric supply installation and said mechanical output unit respectively.
Can be known that by technique scheme the present invention independently controls propulsion electric machine through adopting two cover inverters, makes watercraft when underloading, only uses one tunnel Control work at 50% of rating horsepower, propulsion electric machine is operated in efficacious workaround; During heavy duty; Use the two-way Control work at 100% of rating horsepower simultaneously, propulsion electric machine still is operated in efficacious workaround, thereby realizes the conversion of two kinds of different capacity grades of propulsion electric machine; And all can be operated in efficacious workaround, guarantee the flexible operation and efficient operation of electric propulsion system; Simultaneously, two cover inverters independently controls propulsion electric machine and are made the two-way of electric propulsion system advance to be independent of each other mutually, advance one the tunnel and break down and can not normally move the time, can advance the driving screw propeller through another road, and the assurance watercraft can go back to the port smoothly.
Description of drawings
Fig. 1 is the structural representation of electric propulsion system embodiment one of the present invention.
Fig. 2 is the structural representation of electric propulsion system embodiment two of the present invention.
The main element nomenclature:
1-electric propulsion device; 2-complete machine control setup;
3-machinery output unit; The 4-electric supply installation;
The 11-propulsion electric machine; The 12-inverter;
The 13-rectifier cabinet; The 21-control unit;
The 22-display unit; 23-drives the control platform;
The 31-screw propeller; The 32-gear case;
The 33-coupler; The 41-electric power distribution cabinet;
The 42-generator set; The 421-diesel-engine generator;
422-excitation control element; The L-reactor;
R-rheostatic brake module; Ka, Kb, K1, K2-AC contactor.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Fig. 1 is the structural representation of electric propulsion system embodiment one of the present invention; As shown in Figure 1; The system of present embodiment comprises: electric supply installation 4, electric propulsion device 1, complete machine control setup 2 and mechanical output unit 3; Said electric propulsion device 1 comprises propulsion electric machine 11 and two cover inverters 12, and the input of every cover inverter 12 is connected with said electric supply installation 4, and the output of every cover inverter 12 is connected with the input of said propulsion electric machine 11; The output of said propulsion electric machine 11 is connected with said mechanical output unit 3, and said complete machine control setup 2 is connected with every cover inverter 12, said electric supply installation 4 and said mechanical output unit 3 respectively.
In the present embodiment; Because the propulsion electric machine 11 of electric propulsion device 1 is controlled respectively by two cover inverters 12; Can export two different capacity grades, two different capacity grade independent operatings, thus guarantee that watercraft can carry out power grade according to power demand and select when underloading or heavy duty.Specifically, the electric propulsion device 1 of present embodiment can convert the electric energy that electric supply installation 4 provides into the output shaft output of mechanical energy through motor, thereby driving device output unit 3 guarantees that watercraft goes at the water surface.Simultaneously; The complete machine control setup 2 of present embodiment can be exported the two independent control signal according to load-carrying two cover inverters 12 are controlled respectively; Thereby two cover inverters 12 can independently be controlled connected propulsion electric machine 11; Therefore the power of propulsion electric machine 11 exportable different brackets is realized the heavily stressed power transfer of watercraft underloading.Through the electric current and the horsepower output of the propulsion electric machine in the inverter control present embodiment, also can realize watercraft at permanent torque operation of low speed and high speed output-constant operation, thereby improve the dynamic property and the flexibility of operation of system.
Propulsion electric machine 11 in the present embodiment can be the double armature motor, also can be double-winding motor.If during the double armature motor, the iron core and the winding of two stators of double armature motor are separate, realize integrated installation through a support; The iron core and the winding of two rotors of double armature motor are also separate, through a rotating shaft output torque, realize the stack of power and moment, and the two-way armature can separate work; The rating horsepower of output 50% when single armature is worked; Because two cover inverters 12 and control thereof are separate, thereby the operation that can realize the double armature motor can be exported different capacity.When No. one armature broke down, another road armature still can be exported 50% rating horsepower, guaranteed the normal operation of watercraft.Double-winding motor is to overlap windings through two of mutual electrical isolation to receive separate two cover inverters, 12 controls respectively; Thereby be implemented in a rotating shaft output torque; Realize the stack of power and moment, two cover windings can separate work, the rating horsepower of simplex winding operating room output 50%.Same because two cover inverters 12 and control thereof are separate, thus the operation that can realize double-winding motor can be exported different capacity.When a cover winding broke down, another set of winding still can be exported 50% rating horsepower, guarantees the normal operation of watercraft.
In the real-world operation; Complete machine control setup 2 can provide power and torque selection instruction; The two path control signal of control output after two inverters 12 receive control signal, is controlled propulsion electric machine respectively; Can under 50% or 100% standard duty, move according to power instruction, thus the horsepower output adjustable control of realization propulsion electric machine.During underloading, can only use No. one armature or a cover winding job, the rating horsepower of peak output 50%, the propulsion system operating point is near efficient district; During heavy duty, adopt two-way armature or two cover windings to work simultaneously, the rating horsepower of peak output 100%, propulsion system still is in efficient region of operation.
Present embodiment is independently controlled propulsion electric machine through adopting two cover inverters, makes watercraft when underloading, only uses one tunnel Control work at 50% of rating horsepower, and propulsion electric machine is operated in efficacious workaround; During heavy duty; Use the two-way Control work at 100% of rating horsepower simultaneously, propulsion electric machine still is operated in efficacious workaround, thereby realizes the conversion of two kinds of different capacity grades of propulsion electric machine; And all can be operated in efficacious workaround, guarantee the flexible operation and efficient operation of electric propulsion system; Simultaneously, two cover inverters independently controls propulsion electric machine and are made the two-way of electric propulsion system advance to be independent of each other mutually, advance one the tunnel and break down and can not normally move the time, can advance the driving screw propeller through another road, and the assurance watercraft can go back to the port smoothly.
Fig. 2 is the structural representation of electric propulsion system embodiment two of the present invention; As shown in Figure 2; Present embodiment is on above-mentioned embodiment illustrated in fig. 1 one basis, and electric supply installation 4 can comprise generator set 42 and electric power distribution cabinet 41, and the input of electric power distribution cabinet 41 is connected with the output of generator set 42; The input of every cover rectifier cabinet 13 is connected to one tunnel output of electric power distribution cabinet 41, and generator set 42 is connected with the control unit 21 of complete machine control setup 2 respectively with electric power distribution cabinet 41.Generator set 42 can comprise two or many diesel-engine generators 421.Electric propulsion device 1 also can comprise two cover rectifier cabinets 13 and reactor L; In every cover rectifier cabinet and the reactor; The input of rectifier cabinet 13 is connected with electric supply installation 4, and the output of rectifier cabinet 13 is connected with the input of reactor L, and the output of reactor L is connected with the input of inverter 12.Machinery output unit 3 can comprise screw propeller 31, coupler 33 and gear case 32, and coupler 33 1 ends are connected with the output shaft of propulsion electric machine 11, and the other end of coupler 33 is connected with the imput shaft of gear case 32, and the driven shaft of gear case 32 is connected with screw propeller 31.Complete machine control setup 2 can comprise drives control platform 23, control unit 21 and display unit 22, drives control platform 23 and is connected with control unit 21 respectively with display unit 22, and control unit 21 is connected with electric supply installation 4, electric propulsion device 1 and mechanical output unit 3 respectively.
In the present embodiment; Diesel-engine generator 421 is that electric energy passes through electric power distribution cabinet 41 output ACs with the Conversion of energy of diesel oil fuel; Output to electric propulsion device 1 respectively through the two-way alternating current, every road alternating current is through rectifier cabinet 13 rectifications and separate under the two paths of signals of control unit 21 is controlled respectively through becoming one road direct current input, one cover inverter, 12, two cover inverters 12 after the reactor L filtering; The electric current and the horsepower output of the control propulsion electric machine 11 that is independent of each other; The torque of the output shaft output of propulsion electric machine 11 drives screw propeller 31 at last through coupler 33 and gear case 32, and watercraft is gone on the water.
Specifically; Every diesel-engine generator 421 in the present embodiment is employed in constant-speed operation under the rated speed of rotation, and the fuel economy that can improve diesel engine on the one hand is more than 15%, and disposal of pollutants reduces more than 50%; Thereby effects of energy saving and emission reduction is remarkable, exportable on the other hand constant power frequency.Every diesel-engine generator 421 is connected with the control unit 21 of complete machine control setup 2; Every diesel-engine generator can be provided with excitation control element 422; Like the AVR excitation unit, be used for the voltage of regulator generator output, so the power supply of the exportable constant voltage constant frequency of each electrical generator.The control of the controlled unit 21 of the working condition of every diesel-engine generator 421; When underloading; Can start one or the power supply of minority platform diesel-engine generator; Propulsion electric machine is operated in lower power level and gets final product, on the one hand can energy-saving and emission-reduction, and can also make propulsion electric machine be operated in efficient region of operation on the other hand.Can start many or all diesel-engine generator power supplies during heavy duty; Propulsion electric machine is operated in the higher-wattage rank; Propulsion electric machine is to be operated in efficient region of operation equally, so effective conversion of present embodiment horsepower output when not only having realized the underloading heavy service, but also has reached the effect of energy-saving and emission-reduction.
After the alternating current that rectifier cabinet 13 is exported electric supply installation 4 in the electricity thrust unit 1 is transformed into direct current,, can effectively protect the inverter 12 and the propulsion electric machine 11 of electric propulsion device 1 rear end again through reactor L filtering ripple.One cover rectifier cabinet, reactor, inverter connect successively; For a road of propulsion electric machine advances drive controlling is provided; Another set of rectifier cabinet, reactor, inverter connect successively; For another road of propulsion electric machine advances drive controlling is provided, the two-way drive controlling is not influence each other, thereby realizes that propulsion electric machine can receive two-way to advance control and normal operation respectively independently.The rectifying circuit of rectifier cabinet 13 can adopt 6 pulse wave rectifiers, adopts the rectifier cabinet of 6 pulse wave rectifiers to replace phase shifting transformer, can reduce system cost.Inverter 12 inside can be provided for the rheostatic brake module R of quick shutdown, and rheostatic brake module R can realize glancing impact electric current and power control.When system needed quick shutdown, the resistance among the rheostatic brake module R can consume the portion of energy that mechanical output unit produces because of inertia, thereby quick shutdown adopts rheostatic brake to shut down, and can remove power-transfer clutch and mechanical braking device, safeguards thereby simplify.
Rational Match through gear case 32 speed ratios and propulsion electric machine 11 rotating speeds in the machinery output unit 3, screw propeller 31 rotating speeds and optimal design of diameter also can further improve the propulsion coefficient of watercraft.The service condition of gear case 32 transmissions and the screw propeller 31 of control unit 21 through detecting mechanical output unit 3 can be in real time to the trip information or the failure message of display unit 22 transmission systems.
Present embodiment further through two or many power power stations that diesel-engine generator is formed, is unified distribution by electric power distribution cabinet again on the basis of the technique effect that reaches embodiment one; For propulsion system and ancillary system provide electric energy; Through adopting constant speed generation, guarantee the diesel-engine generator constant-speed operation, improved Diesel Engine Fuel Economy; Reduce disposal of pollutants, thereby reach the effect of energy-saving and emission-reduction; Through the rectification of rectifier cabinet to the alternating current of electric supply installation output, the filtering of reactor further improves the alerting ability that electric moving system is used alternating current; Through the rheostatic brake module is set in inverter, realize quick shutdown on the one hand, can save power-transfer clutch and mechanical braking device on the other hand, simplify and safeguard; Through the appropriate design of gear case revolution ratio, propeller speed, itself and propulsion electric machine are mated, can further improve the propulsion coefficient of watercraft; Control and display unit through driving control platform, control unit show in real time, have realized critical component operation control, state parameter demonstration in real time and trouble diagnosing and information storage, and simple operation is comfortable, and degree of automation is high.
In above-mentioned arbitrary embodiment, when the bigger driving power of needs, can adopt two or many propulsion electric machines to advance, it uses control method and a propulsion electric machine similar.Propulsion electric machine can adopt asynchronous motor supplied with variable frequency, also can adopt permagnetic synchronous motor.
What should explain at last is: above embodiment is only in order to technical scheme of the present invention to be described but not limit it; Although the present invention has been carried out detailed explanation with reference to preferred embodiment; Those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, also can not make amended technical scheme break away from the spirit and the scope of technical scheme of the present invention and these are revised or be equal to replacement.
Claims (10)
1. electric propulsion system; It is characterized in that; Comprise: electric supply installation, electric propulsion device, complete machine control setup and mechanical output unit; Said electric propulsion device comprises propulsion electric machine and two cover inverters, and the input of every cover inverter is connected with said electric supply installation, and the output of every cover inverter is connected with the input of said propulsion electric machine; The output of said propulsion electric machine is connected with said mechanical output unit, and said complete machine control setup is connected with every cover inverter, said electric supply installation and said mechanical output unit respectively.
2. system according to claim 1 is characterized in that, said propulsion electric machine is double armature motor or double-winding motor.
3. system according to claim 1 is characterized in that, said inverter set inside has the rheostatic brake module.
4. system according to claim 1; It is characterized in that; Said electric propulsion device also comprises two cover rectifier cabinet and reactors, and in every cover rectifier cabinet and the reactor, the input of rectifier cabinet is connected with said electric supply installation; The output of rectifier cabinet is connected with the input of reactor, and the output of reactor is connected with the input of inverter.
5. system according to claim 4 is characterized in that the rectifying circuit of said rectifier cabinet adopts 6 pulse wave rectifiers.
6. system according to claim 4; It is characterized in that; Said electric supply installation comprises generator set and electric power distribution cabinet; The input of said electric power distribution cabinet is connected with the output of said generator set, and the input of each rectifier cabinet is connected to one tunnel output of said electric power distribution cabinet, and said generator set is connected with said complete machine control setup respectively with said electric power distribution cabinet.
7. system according to claim 6 is characterized in that said generator set comprises at least two diesel-engine generators, and every diesel-engine generator is connected with said complete machine control setup, and every diesel-engine generator is provided with the excitation control element.
8. system according to claim 7 is characterized in that, said diesel-engine generator is a constant speed engine.
9. according to each described system in the claim 1～8; It is characterized in that; Said mechanical output unit comprises screw propeller, coupler and gear case; Said coupler one end is connected with the output shaft of said propulsion electric machine, and the other end of said coupler is connected with the imput shaft of said gear case, and the driven shaft of said gear case is connected with said screw propeller.
10. according to each described system in the claim 1～8; It is characterized in that; Said complete machine control setup comprises drives control platform, control unit and display unit; The said control platform of driving is connected with said control unit respectively with said display unit; Said control unit is connected with said electric supply installation, said electric propulsion device and said mechanical output unit respectively; The said control platform of driving is used to control personnel and sends to said control unit and control instruction, and said display unit is used for display system operation and failure message, and said control unit is used for sending to display unit according to the operation operation of controlling the said electric supply installation of instruction control, said electric propulsion device and said mechanical output unit that receives and with the system's operation and the failure message that obtain.
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| CN201010587250.1A CN102530219B (en) | 2010-12-08 | 2010-12-08 | Electric propulsion system |
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| CN201010587250.1A CN102530219B (en) | 2010-12-08 | 2010-12-08 | Electric propulsion system |
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| CN102991335A (en) * | 2012-12-10 | 2013-03-27 | 天津市松正电动汽车技术股份有限公司 | Tandem-type hybrid power system |
| CN104590523A (en) * | 2015-01-15 | 2015-05-06 | 浙江欣海船舶设计研究院有限公司 | Electric propelling fishing vessel |
| CN106494599A (en) * | 2016-10-30 | 2017-03-15 | 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 light-seine fishery fishing boat electric propulsion system |
| CN106712590A (en) * | 2015-11-13 | 2017-05-24 | 发那科株式会社 | Selection device and network system for selecting electric motor system |
| 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 |
| CN110120771A (en) * | 2018-02-06 | 2019-08-13 | 中车株洲电力机车研究所有限公司 | A kind of electric machine control system, method and its application |
| CN114285346A (en) * | 2021-12-23 | 2022-04-05 | 广东逸动科技有限公司 | Control device and control method of water carrying device and water carrying device |
| CN114362601A (en) * | 2021-12-26 | 2022-04-15 | 何伟斌 | Motor driver, motor assembly, wire winding machine and industrial equipment |
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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 |
| CN114285346A (en) * | 2021-12-23 | 2022-04-05 | 广东逸动科技有限公司 | Control device and control method of water carrying device and water carrying device |
| CN114285346B (en) * | 2021-12-23 | 2024-04-09 | 广东逸动科技有限公司 | Control device and control method of water carrying device and water carrying device |
| CN114362601A (en) * | 2021-12-26 | 2022-04-15 | 何伟斌 | Motor driver, motor assembly, wire winding machine and industrial equipment |
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Address after: 044502 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee after: CRRC YONGJI ELECTRIC CO., LTD. Address before: 044502 No. 18 motor street, Shanxi, Yongji Patentee before: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. |
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