CN102060096B - Propulsion device without gear box for vector control of permanent magnet synchronous motor of electric ship - Google Patents
Propulsion device without gear box for vector control of permanent magnet synchronous motor of electric ship Download PDFInfo
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- CN102060096B CN102060096B CN 201010594367 CN201010594367A CN102060096B CN 102060096 B CN102060096 B CN 102060096B CN 201010594367 CN201010594367 CN 201010594367 CN 201010594367 A CN201010594367 A CN 201010594367A CN 102060096 B CN102060096 B CN 102060096B
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Abstract
The invention relates to a propulsion device without a gear box for the vector control of a permanent magnet synchronous motor of an electric ship. Two power supplies are respectively electrically connected with an FOC (Field Oriented Control) vector control frequency converter through a propulsion operation platform and a cable; the FOC vector control frequency converter is electrically connected with a permanent magnet brushless synchronous motor through a cable; the permanent magnet brushless synchronous motor is coaxially connected with a rotary transformer and a propeller and mechanically connected with a speed indicating generator; the rotary transformer is electrically connected with the FOC vector control frequency converter through a cable; the speed indicating generator is electrically connected with the combined type propulsion operation platform through a cable; and the speed indicating generator and a storage battery are electrically connected with the FOC vector control frequency converter through cables. The invention directly drives the permanent magnet brushless synchronous motor by adopting the vector control without using the gear box and a brake, thereby optimizing the control characteristics of the electric ship and saving the electric energy.
Description
Technical field
The present invention relates to the Vector Control of Permanent Magnet Synchronous Motors non-gear box propelling unit of a kind of propelling unit of electric ship, particularly a kind of electric ship.
Background technology
The direct propelling ship of conventional diesel engine occupies dominant position at present, diesel engine poor efficiency (below 30%) pollutes, there is flue dust stink noise industrial profit, reason of inefficiency is the many reasons such as energy that can not take away as the significant recovered flue gas in land and cooling water expansion tank, larger from advancing link to see to be kinetic energy rejection, and can not reclaim kinetic energy.Diesel engine advances directly that the reason of inefficiency of pattern comprises that axle is that long inertia is excessive, mode of operation but is that job specification by boats and ships advance and retreat speed is determined, needs often frequently commutation and speed change and can not reclaim kinetic energy because of the irreversible transmission of energy of diesel engine, therefore cause not at all easy through the kinetic energy that acceleration accumulation can only waste or in unintended braking, consume or when needing snap catch with the counteracting of the brake action of mechanical brake device, the former braking effect is not good and reaction is slow, and the latter also needs to increase braking and consumes.
Existing accumulator electric boats and ships generally adopt DC motor and traditional DC control strategy, still have the problems such as efficient spark potential safety hazard not high enough, that do not reclaim braking kinetic energy and brush-commutated device is large, the large poor reliability of maintenance workload.For the supporting Electrical Propulsion Ship of diesel powerplant and electrical motor, although can reclaim kinetic energy, but can only in the situation of high potential (being similar to automobile downhill), utilize motor to run on generating state and kinetic transformation is fed back in electrical network for electric energy, its condition is very harsh: require actual speed to be higher than electrical motor ideal no-load speed (DC machine) or synchronous speed (AC asynchronous motor), most critical be that requirement works in the voltage that the electrical motor of generating state sends and is higher than the electrical network rated voltage, this obviously is difficult to accomplish, and owing to there is not the energy storage effect of storage battery, so the energy recipient need to be arranged, also increased thus difficulty.Because boats and ships lack the situation be similar to automobile downhill, and the kinetic energy of braking procedure and rotating speed all decay gradually, and electric grid operating control is complicated, causes the kinetic energy of electric propulsion motor to be difficult to reclaim.
In traditional ship design, generally in order to prevent that water impact from feeding back to screw propeller, so require airscrew brake is set, namely do not manage to reclaim kinetic energy fully.In addition, conventional electric power advances and the direct propelling ship of diesel engine has generally all adopted the gear case braking technique, because motor speed is too high, propeller speed is lower.More than two kinds of settings cause system complex, conveying flow longer, and must reduce transmission efficiency, increase to accelerate difficulty and kinetic energy loss and because braking or open braking and need to increase energy consumption, simultaneously because boats and ships need regular frequent break-in speed change work, and complicated transmission shafting inertia is excessive, so kinetic energy rejection is larger.
In sum, conventional diesel engine boats and ships and electric ship Shortcomings all.Advance on the overall plan at marine vessel power, also lack the more energy-conservation electric propulsion mode scheme of global optimization.
Summary of the invention
Technical matters to be solved by this invention provides a kind of Vector Control of Permanent Magnet Synchronous Motors non-gear box propelling unit of electric ship, can optimal control characteristic and saving electric energy.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of Vector Control of Permanent Magnet Synchronous Motors non-gear box propelling unit of electric ship, and the duplex feeding power supply is electrically connected with the FOC vector-control frequency converter by cable by the propulsive control platform respectively;
The FOC vector-control frequency converter is electrically connected with permanent magnet brushless synchronous motor by cable;
Permanent magnet brushless synchronous motor is connected with propeller coaxial with magslip;
Permanent magnet brushless synchronous motor and tachogenerator mechanical connection;
Magslip is electrically connected with the FOC vector-control frequency converter by cable;
Tachogenerator is electrically connected with compound type propulsive control platform by cable,
Tachogenerator and storage battery are electrically connected with the FOC vector-control frequency converter by cable;
The parameter of described permanent magnet brushless synchronous motor is that 8-12 utmost points, rotating speed 100-500 rev/min, frequency are 24-40 Hz, number of phases 6-8.
The rotor-position signal that described FOC vector-control frequency converter utilizes magslip to provide is realized the control for permanent magnet brushless synchronous motor;
And the tach signal and self current feedback signal that utilize tachogenerator to provide are realized speed and current double closed loop control to permanent magnet brushless synchronous motor;
Adopt the FOC vector control strategy to realize controlling for the infinite speed variation of permanent magnet brushless synchronous motor;
Described FOC vector-control frequency converter is screw propeller when slowing down at permanent magnet brushless synchronous motor and axle, the control permanent magnet brushless synchronous motor enters the regenerative brake state makes system slowdown, utilize simultaneously system's kinetic energy power generation, and it is rear to battery charge to boost.
Described storage battery is ferric phosphate lithium cell.
Described magslip is the magnetoresistance brushless magslip.
Described permanent magnet brushless synchronous motor is axial magnetic field permanent magnet electrical motor or the elongated type of low inertia.
Described propulsive control platform is provided with power switch, infinite speed variation handling device, a grade speed-regulating manipulation device is arranged, advances pattern conversioning selecting device, speed gage, rotating speed digital input unit, steering handwheel, helm indicator;
The infinite speed variation handling device, a grade speed-regulating manipulation device, rotating speed digital input unit are arranged and advance selecting arrangement to be electrically connected with the FOC vector-control frequency converter, the rotating speed digital input unit is limit priority;
Speed gage is electrically connected with tachogenerator by cable.
Described FOC vector-control frequency converter, permanent magnet brushless synchronous motor, magslip and tachogenerator have two groups;
Described propulsive control platform is provided with described power switch, infinite speed variation handling device, a grade speed-regulating manipulation device is arranged, rotating speed digital input unit and advance selecting arrangement respectively to have two, is electrically connected with one group FOC vector-control frequency converter respectively.
Described screw propeller adopts aluminum alloy materials, also adopts short stern tube shaft to be connected with electrical motor with flange, adopts bearing arrangement to support, and disposes powerful axially stop block, radially can rotate freely.
The Vector Control of Permanent Magnet Synchronous Motors non-gear box propelling unit of a kind of electric ship provided by the invention, by adopting safely and efficiently magnetic brushless synchronous motor, with alternating-current motor/AC motor vector control frequency control technology, non-gear box technology and storage battery are integrated supporting, realize the multiple energy-efficient and accurate infinite speed variation control technologys such as braking kinetic energy recovery, take optimal control characteristic and energy-conservation as target, and will control the permanent magnet brushless electromotor vector controlled non-gear box infinite speed variation electric propulsion mode that multiple functional manipulation control desk and frequency converter electrical motor propeller machine transmission combination become a kind of electric ship.
The present invention has substantial characteristics and significant progressive, specific as follows:
1, adopt permanent magnet brushless synchronous motor can take into account reliability High Performance and high efficiency, and the alternating current technology maturation waveform little comformability of pulsing well is more extensive, is specially adapted to large ship.Adopt the heterogeneous form of multipole low frequency low speed can reduce single-phase cable current, reduce motor speed, under the constant condition of power, mean that torque increases, can mate with propeller characteristic better, shorten workflow, can reduce the kinetic energy loss of pick-up time, the frequent break-in speed change of reduction.Screw propeller generally needs 100-500 rev/min rotating speed, and electrical motor is selected hundreds of rev/mins, thereby can cancel gear case and reduce inertia and mechanical wear is raised the efficiency.Utilize the recovery braking kinetic energy can set up in a wide range the energy.Because permanent magnet motor brushless and commutator are so reliability is high and non-maintaining, so because heating problem easily deals with without the excitation winding loss is little, have multiple advantage.Compare with the multi-stage speed-reducing system with the relative high speed with electrical motor of primary mover of traditional boats and ships, have that flow process is short, the little energy consumption of the little inertia of the lightweight volume of system simplification is little, the kinetic energy low torque is large, the operating characteristic that more meets screw propeller has revolutionary and subversive meaning.Adopt the extraordinary low elongated type of inertia or axial magnetic field permanent magnet electrical motor, can further reduce inertia and accelerate difficulty and kinetic energy loss, comparable general electrical motor is more suitable for electric propulsion and screw propeller propulsive characteristics.Permanent magnet brushless synchronous motor has non-maintaining characteristic and has higher reliability.Match the feasible system non-brushing with adopting the magnetoresistance brushless magslip.According to measuring and calculating, cancellation gear case and simplification axle system can improve efficiency 7-10% on year-on-year basis.
2, adopt vector controlled can improve control accuracy and obtain accurate infinite speed variation performance and energy-conservation FOC control, simultaneously, adopt pressure build-up technique and storage battery is supporting can effectively reclaim braking kinetic energy.
3, cancellation gear case and drg not only can reduce running wastage, and changed and traditional prevent that water impact from feeding back in the propelling main frame such as diesel engine, electrical motor and shafting design method and can realize more easily recover kinetic energy.
But 4, the ferric phosphate lithium cell of employing fast charging and discharging quick absorbed energy not only, and have the performance of safety, high energy, anti-abuse, therefore can reduce storage battery and be equipped with quantity.
5, adopt the magnetoresistance brushless magslip can realize that non-brushing is to guarantee safety and to reduce maintenance workload.
6, adopt aluminum alloy materials screw propeller, short stern tube shaft to be connected with flange, and bearing arrangement, can reduce the resistance of mechanical link and reduce the wastage.Both can improve operating efficiency, be conducive to again recover kinetic energy.
7, the power supply of duplex feeding can be the direct current (DC) of accumulator electric boats and ships or the alternating current of other type electric ship, therefore has multiple comformability, applicable to the boats and ships of multiple power sources type.
8, operating console has several functions.Compound type propulsive control platform has three kinds of rotating speed input modes, has two kinds of maneuverability patterns: an infinite speed variation and grade speed governing arranged, but and by rotating speed digital input unit direct control motor operation, realize that marine vessel power advances.Have rotating speed and show and power switch, can adopt manual mode or the automated manner under certain short circuit and overload condition to cut off faulted circuit to guarantee the power supply safety continuity.Considered the situation of the actual use of operator's station, supporting with steering handwheel, helm indicator, have the practicality of handling propulsion of ship and turning to, and the compact conformation control comfort.
9, the present invention be specially adapted to the accumulator electric boats and ships and with the Electrical Propulsion Ship of generator set band electrical motor.For the former, because possessed storage battery, can save this.For the latter, because the purposes of storage battery only is to reclaim kinetic energy, so can be equipped with the less battery pack of negligible amounts capacity.Yet the effect that can obtain to get twice the result with half the effort.According to Chutian Metroplis Daily 2006,11, the strange flower bud VRM Electrical Bicycle of 2 reports adopt the regenerative brake self power generation, boost, the reverse charge technology reclaims kinetic energy, compare strength with traditional product and increase 30%, continual mileage improves 50%, improves service lifetime of accumulator two, 3 years, by present 1 year to 4 years.Point out according to People's Telecon Publishing House " Electrical Bicycle practical technique " (the experts database member of Tianjin bicycle productivity promotion center writes 2008), for the larger city of surface slope or crowded traffic, need the big and medium-sized cities of frequent braking, the effect of reverse charge---electric braking can increase continual mileage 10%-20% of battery-driven car usually.
10, the present invention has integrated advantage and effect.Be based on accurately High Performance high efficiency index of safety, pursue from many aspects the integrated result of increasing income and decreasing expenditure.Adopting the efficient electrical motor that hangs down the large torque of inertia slow speed of revolution can shorten flow process presses close to propeller characteristic, is to carry out throttling from electrical motor components and parts link; Adopting vector controlled is from the throttling of control policy aspect; Cancellation gear case and drg and to simplify lightization axle be that screw propeller etc. is from mechanical transmission link throttling.Aspect increasing income, supporting with storage battery and motor, frequency converter and pressure build-up technique, can realize that braking kinetic energy reclaims.General boats and ships all can be subject to current and promote and automatically navigation in following current, and screw propeller also can be stressed, and traditional design is braked screw propeller.Now this energy is used for generating and booster tension, and supporting with storage battery, can smoothly energy back be used, and organic efficiency is higher.This energy recovery utilizing system so be perfect, has integrated effect and general prospect of the application owing to adopted storage battery, can use on general electric ship.Owing to take full advantage of electric ship energy principle of reversibility, so the present invention can adapt to propulsion of ship operating characteristic and the energy-conservation requirement of frequent break-in speed change better, can greatly reduce the loss of operational process and improves efficiency.In addition; the present invention not only has basic electric propulsion main system; and have basic operation control system and a device; its operating control is integrated advances power supply, main motor controller---and infinite speed variation and the devices such as a grade speed-regulating manipulation device, rotating speed demonstration, steering wheel steering handwheel, helm indicator are arranged has several functions and the actual value of service of distribution, manipulation, indicated number, protection.Generally be the ship steering engine system that does not consider to change sense of motion as propulsion control system, yet as the boats and ships central control console, both must link to each other, so on operator's station of the present invention, carried out steering gear and host service function device integrated.Overall plan of the present invention is specially adapted to the accumulator electric boats and ships that stationarity is had relatively high expectations, and reclaim the electric propulsion scheme that the kinetic energy scheme is particularly suitable for the electric ship of generator set band electrical motor or adopts the main motor of other type, only needing to be equipped with a small amount of storage battery gets final product, thereby cost is low, but effect is remarkable.By contrast, the conventional diesel engine boats and ships can not reclaim kinetic energy, namely can not realize energy back, because energy is irreversible, and the electric propulsion of general diesel powerplant band electrical motor also is difficult to recycle kinetic energy, in default of the unimpeded passage of storage battery and energy feedback.For the diesel engine boats and ships, not only can not reclaim kinetic energy, and braking effect is relatively poor, kinetic energy is merely able to consume in water and among the friction.If need snap catch, then need to adopt the mechanical brake mode to brake, namely also need to increase energy consumption.For the accumulator electric boats and ships, then can save the storage battery of special recovery kinetic energy, and directly and the ship power storage battery supporting.For the electric ship of generator set band electrical motor, only need to be equipped with a small amount of storage battery, and simple.For this pattern, diesel engine is done directed constant speed running, also improved energy conversion efficiency, kinetic energy loss is low, pick-up time is short when driving screw propeller, waste of power is low, and being summarised as does not have unloaded idling loss and replace the mode of operation of the frequent break-in speed change that advances main frame and reduce and accelerate and kinetic energy loss with the directed constant speed mode of operation of subsidiary engine.So the invention provides a kind of efficient recover kinetic energy scheme, applicable to all electric ships and diesel engine boats and ships, only need to be when screw propeller and axle system slows down for the latter, utilize magnetic clutch that electrical generator is accessed the stern tube shaft system, namely can be with recover kinetic energy, and utilize battery stores, when needs use, in like manner can be with the motor connecting system, then electrical generator will move as electrical motor, can drive the screw propeller rotation.
11, split-phase motor energy condition reversible, that reclaim is:
1) electrical motor reversible operation aspect energy namely can be used as generator operation.
2) control policy can be realized four quadrant running, and namely service direction is reversible and energy is reversible.
3) voltage is higher than power supply, and energy has the recipient.Electric propulsion pattern for electrical generator band electrical motor, namely require voltage to be higher than electrical generator or electrical network, obviously for storage battery, can satisfy easily the 3rd condition, because itself is exactly the recipient, and can store electrical energy, can also make easily voltage be higher than storage battery, and not have the voltage to frequency amplitude of alternating current electrical network and the problem of phase place.Simultaneously for second condition, because the existence of storage battery, so can reduce and can realize easily for the requirement of control policy, generally speaking, only have the matrix mode to realize, for other control policy, then all be difficult to realize, yet because the existence of storage battery, no matter what control policy is all realized easily, contact directly the generating kinetic energy of just can reclaiming braking with storage battery because control policy can be broken away from.In addition, for the 3rd condition, because electrical motor regenerative brake kinetic energy is decayed gradually, obviously be unapproachable, and for the situation that storage battery is arranged, then obviously realize easily.Sum up, first condition is that nature is set up, and second and third condition is for the requirement of control policy and to be higher than power line voltage all be unapproachable, yet under the condition that has storage battery to exist, all realizes easily.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is structured flowchart of the present invention.
Fig. 2 is the front view of compound type propulsive control platform among the present invention.
Fig. 3 is the birds-eye view of compound type propulsive control platform among the present invention.
The specific embodiment
In Fig. 1, a kind of Vector Control of Permanent Magnet Synchronous Motors non-gear box propelling unit of electric ship, main system comprises compound type propulsive control platform 1, FOC vector-control frequency converter 2, permanent magnet brushless synchronous motor 3, magslip 4, screw propeller 5, tachogenerator 6, storage battery 7, propulsive control platform 1 and FOC vector-control frequency converter 2 are arranged on operator's compartment, and the duplex feeding power supply is electrically connected with FOC vector-control frequency converter 2 by cable by propulsive control platform 1 respectively;
FOC vector-control frequency converter 2 is electrically connected with permanent magnet brushless synchronous motor 3 by cable;
Permanent magnet brushless synchronous motor 3 is arranged in the main motor cabin, and permanent magnet brushless synchronous motor 3 is connected coaxial the connection with screw propeller with magslip 4; Screw propeller 5 adopts aluminum alloy materials, also adopts short stern tube shaft to be connected with permanent magnet brushless synchronous motor 3 with flange, adopts bearing arrangement to support, and disposes powerful axially stop block, radially can rotate freely.
Permanent magnet brushless synchronous motor 3 and tachogenerator 6 mechanical connections;
Magslip 4 is electrically connected with FOC vector-control frequency converter 2 by cable;
Tachogenerator 6 is electrically connected with compound type propulsive control platform 1 by cable,
Tachogenerator 6 and storage battery 7 are electrically connected with FOC vector-control frequency converter 2 by cable.
The rotor-position signal that described FOC vector-control frequency converter 2 utilizes magslip 4 to provide is realized the control for permanent magnet brushless synchronous motor 3;
And the tach signal and self current feedback signal that utilize tachogenerator 6 to provide are realized speed and current double closed loop control to permanent magnet brushless synchronous motor 3;
Adopt the FOC vector control strategy to realize controlling for the infinite speed variation of permanent magnet brushless synchronous motor 3;
Described FOC vector-control frequency converter 2 is screw propeller 5 when slowing down at permanent magnet brushless synchronous motor 3 and axle, control permanent magnet brushless synchronous motor 3 enters the regenerative brake state makes system slowdown, utilize simultaneously system's kinetic energy power generation, and it is rear to storage battery 7 chargings to boost.Feed back in power supply and store thereby change kinetic energy into electric energy, realize the reversible transmission of energy; In addition, store electrical energy can also be fed back on the dc bus of FOC vector-control frequency converter 2 and for permanent magnet brushless synchronous motor 3.
Described storage battery 7 is ferric phosphate lithium cell.
Described magslip 4 is the magnetoresistance brushless magslip.
Described permanent magnet brushless synchronous motor 3 design parameters are that 8-12 utmost points, rotating speed are for example 24Hz ~ 40 Hz of 100-500 rev/min, low frequency, heterogeneous 6-8, adopt axial magnetic field permanent magnet electrical motor or the elongated type of low inertia, and adopt non-gear box machinery-free drg scheme, directly drive screw propeller 5 rotations by permanent magnet brushless synchronous motor 3, permanent magnet brushless synchronous motor 3 can be as generator operation in certain flow rate, and its generating can and store storage battery 7 chargings.
In Fig. 2, Fig. 3, described propulsive control platform 1 is provided with power switch 8, infinite speed variation handling device 9, grade speed-regulating manipulation device 10 is arranged, advances pattern conversioning selecting device 11, speed gage 12, rotating speed digital input unit 13, steering handwheel 14, helm indicator 15;
Infinite speed variation handling device 9, grade speed-regulating manipulation device 10, rotating speed digital input unit 13 are arranged and advance selecting arrangement 11 to be electrically connected with FOC vector-control frequency converter 2, rotating speed digital input unit 13 is limit priority;
Described FOC vector-control frequency converter 2, permanent magnet brushless synchronous motor 3, magslip 4 and tachogenerator 6 have two groups;
Described propulsive control platform 1 is provided with described power switch 8, infinite speed variation handling device 9, grade speed-regulating manipulation device 10 is arranged, rotating speed digital input unit 13 and advance selecting arrangement 11 respectively to have two, is electrically connected with one group FOC vector-control frequency converter 2 respectively.
As shown in Figure 1, propulsive control platform 1 links to each other with permanent magnet brushless synchronous motor 3 with FOC vector-control frequency converter 2 by cable, permanent magnet brushless synchronous motor 3 links to each other with magslip 4, screw propeller 5 and tachogenerator 6 machineries, magslip 4 and tachogenerator 6 provide the position signal of electronic commutation and the tach signal of two closed loop controls for permanent magnet brushless synchronous motor 3, realize that FOC vector-control frequency converter 2 is for the accurate infinite speed variation of vector controlled of permanent magnet brushless synchronous motor 3.Utilize infinite speed variation and have shelves to transfer device can realize directly controlling permanent magnet brushless synchronous motor 3 and vessel motion, utilize steering handwheel 14, helm indicator 15 can carry out steering wheel and handle.Job procedure is: two source switchs opening propulsive control platform 1, connect the two-way power supply, handle propelling pattern conversioning selecting device 11, select a kind of operating pattern, utilization is without infinite speed variation handling device 9 or have grade speed-regulating manipulation device 10 to carry out stepless or a grade speed governing is arranged, but adopt the digital rotating speed of rotating speed digital input unit 13 input priorities, computing machine is not stored the rotating speed numeral of this interim input.When slowing down, but the kinetic energy of device the automatic recovery regenerative brake of the present invention, along with the screw propeller rotation, but self power generation be input in the storage battery 7, when needs used energy, storage battery 7 can be powered on FOC vector-control frequency converter 2 dc buss.Utilize steering handwheel 14, helm indicator 15 can handle steering wheel, thereby realize the manipulation control of whole boats and ships.
Claims (9)
1. the Vector Control of Permanent Magnet Synchronous Motors non-gear box propelling unit of an electric ship is characterized in that: the duplex feeding power supply is electrically connected with FOC vector-control frequency converter (2) by cable by compound type propulsive control platform (1) respectively;
FOC vector-control frequency converter (2) is electrically connected with permanent magnet brushless synchronous motor (3) by cable;
Permanent magnet brushless synchronous motor (3) is connected 5 with magslip (4) with screw propeller) the coaxial connection;
Permanent magnet brushless synchronous motor (3) and tachogenerator (6) mechanical connection;
Magslip (4) is electrically connected with FOC vector-control frequency converter (2) by cable;
Tachogenerator (6) is electrically connected with compound type propulsive control platform (1) by cable,
Tachogenerator (6) and storage battery (7) are electrically connected with FOC vector-control frequency converter (2) by cable;
The parameter of described permanent magnet brushless synchronous motor (3) is that 8-12 utmost points, rotating speed 100-500 rev/min, frequency are 24-40 Hz, number of phases 6-8.
2. the Vector Control of Permanent Magnet Synchronous Motors non-gear box propelling unit of a kind of electric ship according to claim 1 is characterized in that: the rotor-position signal that described FOC vector-control frequency converter (2) utilizes magslip (4) to provide is realized the control for permanent magnet brushless synchronous motor (3);
And the tach signal and self current feedback signal that utilize tachogenerator (6) to provide are realized speed and current double closed loop control to permanent magnet brushless synchronous motor (3);
Adopt the FOC vector control strategy to realize controlling for the infinite speed variation of permanent magnet brushless synchronous motor (3).
3. the Vector Control of Permanent Magnet Synchronous Motors non-gear box propelling unit of a kind of electric ship according to claim 1, it is characterized in that: described FOC vector-control frequency converter (2) is screw propeller when slowing down at permanent magnet brushless synchronous motor (3) and axle, control permanent magnet brushless synchronous motor (3) enters the regenerative brake state makes system slowdown, utilize simultaneously system's kinetic energy power generation, and boost and rear storage battery (7) is charged.
4. according to claim 1 or the Vector Control of Permanent Magnet Synchronous Motors non-gear box propelling unit of 3 described a kind of electric ships, it is characterized in that: described storage battery (7) is ferric phosphate lithium cell.
5. the Vector Control of Permanent Magnet Synchronous Motors non-gear box propelling unit of a kind of electric ship according to claim 1, it is characterized in that: described magslip (4) is the magnetoresistance brushless magslip.
6. the Vector Control of Permanent Magnet Synchronous Motors non-gear box propelling unit of a kind of electric ship according to claim 1, it is characterized in that: described permanent magnet brushless synchronous motor (3) is the axial magnetic field permanent magnet electrical motor.
7. the Vector Control of Permanent Magnet Synchronous Motors non-gear box propelling unit of a kind of electric ship according to claim 1 is characterized in that: described compound type propulsive control platform (1) is provided with power switch (8), infinite speed variation handling device (9), a grade speed-regulating manipulation device (10) is arranged, advances pattern conversioning selecting device (11), speed gage (12), rotating speed digital input unit (13), steering handwheel (14), helm indicator (15);
Infinite speed variation handling device (9), a grade speed-regulating manipulation device (10), rotating speed digital input unit (13) are arranged and advance selecting arrangement (11) to be electrically connected with FOC vector-control frequency converter (2), rotating speed digital input unit (13) is limit priority;
Speed gage (12) is electrically connected with tachogenerator (6) by cable.
8. the Vector Control of Permanent Magnet Synchronous Motors non-gear box propelling unit of a kind of electric ship according to claim 1, it is characterized in that: described FOC vector-control frequency converter (2), permanent magnet brushless synchronous motor (3), magslip (4) and tachogenerator (6) have two groups;
Described compound type propulsive control platform (1) is provided with power switch (8), infinite speed variation handling device (9), a grade speed-regulating manipulation device (10) is arranged, rotating speed digital input unit (13) and advance selecting arrangement (11) respectively to have two, is electrically connected with one group FOC vector-control frequency converter (2) respectively.
9. the Vector Control of Permanent Magnet Synchronous Motors non-gear box propelling unit of a kind of electric ship according to claim 1, it is characterized in that: described screw propeller (5) adopts aluminum alloy materials, also adopts short stern tube shaft to be connected with electrical motor (3) with flange, screw propeller (5) adopts bearing arrangement to support, dispose powerful axially stop block, radially can rotate freely.
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| CN103318396B (en) * | 2013-06-07 | 2016-02-17 | 哈尔滨耦合动力工程技术中心有限公司 | The boats and ships bavin electric mixed dynamic system of hybrid connected structure and mixed method |
| CN103895832B (en) * | 2014-03-18 | 2017-01-04 | 哈尔滨工程大学 | A kind of boats and ships electricity servo fin, wing fin rollstabilization intelligence vector control method |
| CN105905268A (en) * | 2016-04-15 | 2016-08-31 | 武汉奇泰隆机械有限公司 | Vessel large power long-tube-type transmission device |
| CN107672457A (en) * | 2017-05-02 | 2018-02-09 | 张文祥 | Novel electric driven motor car |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1225608A (en) * | 1996-06-26 | 1999-08-11 | 西门子公司 | Pod-like ship propulsion system with synchronous motor |
| US6231407B1 (en) * | 1996-06-26 | 2001-05-15 | Siemens Aktiengesellschaft | Ship propulsion with a gondola-like synchronous motor |
| CN2494315Y (en) * | 2001-07-05 | 2002-06-05 | 中国科技开发院浙江分院 | Electric power frequency-changing propelling device for ship |
| WO2004068694A1 (en) * | 2003-01-15 | 2004-08-12 | Siemens Aktiengesellschaft | Electric machine for the propulsion drive of a submarine of a synchronous machine excited by a permanent magnet |
| CN201002715Y (en) * | 2006-12-14 | 2008-01-09 | 上海交通大学 | Gas turbine Stirling engine electric propulsion device for large-scale vessels high speed sailing |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8-207893A 1996.08.13 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102060096A (en) | 2011-05-18 |
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