CN107588175B - Differential planet gear parallel connection four-quadrant motor high-power energy saving speed-regulating system and method - Google Patents
Differential planet gear parallel connection four-quadrant motor high-power energy saving speed-regulating system and method Download PDFInfo
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- CN107588175B CN107588175B CN201710695151.7A CN201710695151A CN107588175B CN 107588175 B CN107588175 B CN 107588175B CN 201710695151 A CN201710695151 A CN 201710695151A CN 107588175 B CN107588175 B CN 107588175B
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Abstract
The invention discloses a kind of differential planet gear parallel connection four-quadrant motor high-power energy saving speed-regulating system and methods, including differential planet gear, four-quadrant motor, four-quadrant inverter, driving motor and load；Differential planet gear includes drive bevel gear, differential internal bevel gear group, dynamic bevel gear and differential external gear；Differential internal bevel gear group includes several internal bevel gears, and each internal bevel gear is arranged on the inner peripheral surface of differential external gear；Each internal bevel gear is meshed with drive bevel gear and dynamic bevel gear；Drive bevel gear is connected with driving motor, and dynamic bevel gear is connected with load；Differential external gear is engaged with the motor gear in four-quadrant motor；One end of four-quadrant inverter is connected with four-quadrant motor, and the other end of four-quadrant inverter is connected with power grid, and power grid is also connected with driving motor.The present invention is without slip loss, the standby functions being able to achieve under lifting speed speed regulation, realization load fast braking and driving motor malfunction.
Description
Technical field
The present invention relates to a kind of speed-regulating system and methods, the especially a kind of big function of differential planet gear parallel connection four-quadrant motor
Rate energy-saving speed regulating system and method.
Background technique
Existing energy-saving speed regulating system mainly has the occasionally speed regulation of frequency control, liquid, permanent magnetic speed-adjusting and planetary gear speed regulation.So
And there is also following problems for above-mentioned speed-regulating system:
1. frequency control is electronic speed regulation, higher to environmental requirement, and the cost in high-power (MW grades) transmission system
It is higher.
2. liquid occasionally speed regulation is hydraulic speed-regulating, similar with permanent magnetic speed-adjusting and planetary gear speed regulation, transmission system tune is belonged to
Speed.Wherein, hydraulic speed-regulating and permanent magnetic speed-adjusting are continuous speed regulation system, but there are slip losses.Planetary gear speed regulation is to have grade
Speed regulation, speed adjustable range are restricted.
Therefore, pass through the analysis of existing speed adjusting gear, it would be highly desirable to solve following technical problem:
1. providing a kind of stepless time adjustment mechanism without slip loss based on transmission system.
2. relatively existing speed adjusting gear, which will not only realize the purpose of reduction of speed speed regulation, and also wanting can be in special circumstances
Under, it realizes the raising speed speed regulation of system, there is running overload ability.
3. relatively existing speed adjusting gear, which will be able to achieve load fast braking function.
4. relatively existing speed adjusting gear, the mechanism will be able to achieve the standby functions under driving motor malfunction.
Summary of the invention
In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a kind of differential planet gears
Four-quadrant motor high-power energy saving speed-regulating system in parallel, differential planet gear parallel connection four-quadrant motor high-power energy saving speed regulation system
It unites without slip loss, the spare function being able to achieve under lifting speed speed regulation, realization load fast braking and driving motor malfunction
Energy.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of differential planet gear parallel connection four-quadrant motor high-power energy saving speed-regulating system, including differential planet gear, four
Quadrant motor, four-quadrant inverter, driving motor and load.
Differential planet gear includes drive bevel gear, differential internal bevel gear group, dynamic bevel gear and differential external gear.
Differential internal bevel gear group includes several internal bevel gears, and each internal bevel gear is arranged at the inner circle of differential external gear
On circumferential surface.
Each internal bevel gear is meshed with drive bevel gear and dynamic bevel gear.
Drive bevel gear is connected with driving motor, and dynamic bevel gear is connected with load.
Differential external gear is engaged with the motor gear in four-quadrant motor.
One end of four-quadrant inverter is connected with four-quadrant motor, and the other end of four-quadrant inverter is connected with power grid
It connects, power grid is also connected with driving motor.
Differential external gear is tapered differential outer bevel gear, and motor gear is tapered motor bevel gear.
It further include driving shaft, drive bevel gear is fixedly set in one end of driving shaft, the other end and driving electricity of driving shaft
Machine is connected.
It further include driven axle, dynamic bevel gear is fixedly set in one end of driven axle, the other end and the load phase of driven axle
Connection.
It further include connecting rod, each internal bevel gear passes through connecting rod and is arranged on the inner peripheral surface of differential external gear, each interior
Bevel gear can realize rotation by rotary shaft of connecting rod.
The present invention also provides a kind of differential planet gear parallel connection four-quadrant motor high-power energy saving speed regulating method, the differential rows
Star gear parallel connection four-quadrant motor high-power energy saving speed regulating method without slip loss, be able to achieve lifting speed speed regulation, realize that load is fast
Standby functions under speed braking and driving motor malfunction.
A kind of differential planet gear parallel connection four quadrant running motor high-power energy saving speed regulating method, includes the following steps:
Step 1, revolving speed is set: driving motor drives drive bevel gear rotation, it is assumed that turn of drive bevel gear or driving shaft
Speed is n1, it is assumed that the revolving speed of the dynamic bevel gear or driven axle that are connected with load is n2, motor gear in four-quadrant motor
Revolving speed is n3.
Step 2, controlled by reasonable adjusting to revolving speed n1, n2 and n3, can be realized torque transmit entirely, the feedback that generates electricity,
Speedup is loaded to adjust, load rotation-clogging protection and load feedback braking function；The specific control method of revolving speed n1, n2 and n3 are such as
Under.
Step 21, torque transmits entirely: make revolving speed n3=0 of motor gear in four-quadrant motor, then n1=n2, driving motor
Torque can be entirely delivered to load.
Step 22, power generation feedback: making n1=n2+2*n3, and four-quadrant motor is in generating state, namely by changing four-quadrant
It rations the power supply the power output of machine, controls the torque on motor gear, change the torque point between differential external gear and dynamic bevel gear
Match, realizes load-retarding energy conservation, while four-quadrant electric power generation feedback power.
Step 23, load speedup is adjusted: making n1+2*n3=n2, four-quadrant motor is in motoring condition, namely passes through change
The electric energy of four-quadrant motor inputs, and controls the torque on motor gear, changes the torsion between differential external gear and dynamic bevel gear
Square distribution realizes that load speedup increases function.
Step 24, it loads rotation-clogging protection: when loading stall, making n1=2*n3, then the power output of driving motor passes through four
Quadrant motor recycles completely, realizes the protection under load locked rotor condition.
Step 25, load feedback is braked: make n2=2*n3, driving motor is in generating state without input, four-quadrant motor,
The residual amount of energy of load is recycled by four-quadrant motor, realizes the regenerative braking of load, quick shutdown.
In the step 25, as n2=2*n3, driving motor makes at four-quadrant motor without input or when driving motor failure
In generating state, at this point, four-quadrant motor can be loaded as motor drive.
The invention has the following beneficial effects: the working conditions by adjusting four-quadrant motor, adjust on differential external gear
Torque, realize that the torque of four-quadrant motor and load distributes by differential planet gear, adjust the energy output of load system.
In addition, the present invention is the stepless time adjustment mechanism without slip loss based on transmission system；It is able to achieve the purpose of reduction of speed speed regulation, moreover it is possible to
Enough under special circumstances, the raising speed speed regulation of system, running overload ability are realized；It is able to achieve load fast braking function；It can be real
Standby functions under existing driving motor malfunction.
Detailed description of the invention
Fig. 1 shows the signal of differential planet gear parallel connection four-quadrant motor high-power energy saving speed-regulating system in embodiment 1
Figure.
Fig. 2 shows the schematic diagram of differential planet gear in embodiment 1.
Fig. 3 shows the connection schematic diagram of differential external gear and motor gear in embodiment 1.
Fig. 4 shows the signal of differential planet gear parallel connection four-quadrant motor high-power energy saving speed-regulating system in embodiment 2
Figure.
Fig. 5 shows the connection schematic diagram of differential outer bevel gear and motor bevel gear in embodiment 2.
Wherein have:
1. differential planet gear；
11. driving shaft；12. drive bevel gear；13. differential internal bevel gear；14. dynamic bevel gear；15. driven axle；16. poor
Dynamic external gear；17. connecting rod；18. differential outer bevel gear；
2. four-quadrant motor；21. motor gear；22. motor bevel gear；
3. four-quadrant inverter；
4. driving motor；
5. load.
Specific embodiment
Xia Mianjiehefutuhejuti compare Jia Shishifangshiduibenfamingzuojinyibuxiangxishuoming.
Embodiment 1
As shown in Figure 1, a kind of differential planet gear parallel connection four-quadrant motor high-power energy saving speed-regulating system, including differential row
Star gear 1, four-quadrant motor 2, four-quadrant inverter 3, driving motor 4 and load 5.
As shown in Fig. 2, differential planet gear include driving shaft 11, drive bevel gear 12, differential internal bevel gear group, by mantle
Gear 14, driven axle 15 and differential external gear 16.
Differential internal bevel gear group includes several internal bevel gears 13, as shown in figure 3, each internal bevel gear preferably passes through company
Bar 17 is arranged on the inner peripheral surface of differential external gear, and each internal bevel gear can realize rotation by rotary shaft of connecting rod.
Each internal bevel gear is meshed with drive bevel gear and dynamic bevel gear.
Drive bevel gear preferably passes through that driving shaft is connected with driving motor namely drive bevel gear is preferably fixedly set in
The other end of one end of driving shaft, driving shaft is preferably connected with driving motor.
Dynamic bevel gear preferably passes through that driven axle is connected with load namely dynamic bevel gear is preferably fixedly set in passively
The other end of one end of axis, driven axle is preferably connected with load.
Differential external gear is engaged with the motor gear 21 in four-quadrant motor, thus, differential internal bevel gear can be with differential outer
Gear revolves.
In the present embodiment, differential external gear and motor gear are circular configuration.
One end of four-quadrant inverter is connected with four-quadrant motor, and the other end of four-quadrant inverter is connected with power grid
It connects, power grid is also connected with driving motor.
A kind of differential planet gear parallel connection four quadrant running motor high-power energy saving speed regulating method, includes the following steps:
Step 1, revolving speed is set: driving motor drives drive bevel gear rotation, it is assumed that turn of drive bevel gear or driving shaft
Speed is n1, it is assumed that the revolving speed of the dynamic bevel gear or driven axle that are connected with load is n2, motor gear in four-quadrant motor
Revolving speed is n3.
Step 2, controlled by reasonable adjusting to revolving speed n1, n2 and n3, can be realized torque transmit entirely, the feedback that generates electricity,
Speedup is loaded to adjust, load rotation-clogging protection and load feedback braking function.
The specific control method of revolving speed n1, n2 and n3 are as follows.
Step 21, torque transmits entirely: make revolving speed n3=0 of motor gear in four-quadrant motor, then n1=n2, driving motor
Torque can be entirely delivered to load, thus without slip loss.
Step 22, power generation feedback: making n1=n2+2*n3, and four-quadrant motor is in generating state, namely by changing four-quadrant
It rations the power supply the power output of machine, controls the torque on motor gear, change the torque point between differential external gear and dynamic bevel gear
Match, realizes load-retarding energy conservation, while four-quadrant electric power generation feedback power.
Step 23, load speedup is adjusted: making n1+2*n3=n2, four-quadrant motor is in motoring condition, namely passes through change
The electric energy of four-quadrant motor inputs, and controls the torque on motor gear, changes the torsion between differential external gear and dynamic bevel gear
Square distribution realizes that load speedup increases function.
Step 24, it loads rotation-clogging protection: when loading stall, making n1=2*n3, then the power output of driving motor passes through four
Quadrant motor recycles completely, realizes the protection under load locked rotor condition.
Step 25, load feedback is braked: make n2=2*n3, driving motor is in generating state without input, four-quadrant motor,
The residual amount of energy of load is recycled by four-quadrant motor, realizes the regenerative braking of load, quick shutdown.
In this step 25, as n2=2*n3, driving motor is in four-quadrant motor without input or when driving motor failure
Generating state, at this point, four-quadrant motor can be loaded as motor drive.
Embodiment 2
As shown in Figure 4 and Figure 5, above-mentioned differential external gear is tapered differential outer bevel gear 18, and motor gear is in cone
The motor bevel gear 22 of shape, remaining is identical as implementing 1.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail a variety of equivalents can be carried out to technical solution of the present invention within the scope of the technical concept of the present invention, this
A little equivalents all belong to the scope of protection of the present invention.
Claims (7)
1. a kind of differential planet gear parallel connection four quadrant running motor high-power energy saving speed-regulating system, it is characterised in that: including difference
Dynamic planetary gear, four-quadrant motor, four-quadrant inverter, driving motor and load；
Differential planet gear includes drive bevel gear, differential internal bevel gear group, dynamic bevel gear and differential external gear；
Differential internal bevel gear group includes several internal bevel gears, and each internal bevel gear is arranged at the inner peripheral surface of differential external gear
On；
Each internal bevel gear is meshed with drive bevel gear and dynamic bevel gear；
Drive bevel gear is connected with driving motor, and dynamic bevel gear is connected with load；
Differential external gear is engaged with the motor gear in four-quadrant motor；
One end of four-quadrant inverter is connected with four-quadrant motor, and the other end of four-quadrant inverter is connected with power grid, electricity
Net is also connected with driving motor.
2. differential planet gear parallel connection four quadrant running motor high-power energy saving speed-regulating system according to claim 1,
Be characterized in that: differential external gear is tapered differential outer bevel gear, and motor gear is tapered motor bevel gear.
3. differential planet gear parallel connection four quadrant running motor high-power energy saving speed-regulating system according to claim 1,
It is characterized in that: further including driving shaft, drive bevel gear is fixedly set in one end of driving shaft, the other end and driving electricity of driving shaft
Machine is connected.
4. differential planet gear parallel connection four quadrant running motor high-power energy saving speed-regulating system according to claim 1,
It is characterized in that: further including driven axle, dynamic bevel gear is fixedly set in one end of driven axle, the other end and the load phase of driven axle
Connection.
5. differential planet gear parallel connection four quadrant running motor high-power energy saving speed-regulating system according to claim 1,
It is characterized in that: further including connecting rod, each internal bevel gear passes through connecting rod and is arranged on the inner peripheral surface of differential external gear, each interior
Bevel gear can realize rotation by rotary shaft of connecting rod.
6. a kind of differential planet gear parallel connection four quadrant running motor high-power energy saving according to claim 1-5
Speed regulating method, characterized by the following steps:
Step 1, revolving speed is set: driving motor drives drive bevel gear rotation, it is assumed that the revolving speed of drive bevel gear or driving shaft is
N1, it is assumed that the revolving speed of the dynamic bevel gear or driven axle that are connected with load is n2, the revolving speed of motor gear in four-quadrant motor
For n3；
Step 2, it is controlled by the reasonable adjusting to revolving speed n1, n2 and n3, can be realized torque and transmit, the feedback that generates electricity, load entirely
Speedup adjusts, loads rotation-clogging protection and load feedback braking function；The specific control method of revolving speed n1, n2 and n3 are as follows:
Step 21, torque transmits entirely: making revolving speed n3=0 of motor gear in four-quadrant motor, then n1=n2, the torque of driving motor
Load can be entirely delivered to；
Step 22, power generation feedback: make n1=n2+2*n3, four-quadrant motor is in generating state, namely rations the power supply by changing four-quadrant
The power output of machine controls the torque on motor gear, changes the torque distribution between differential external gear and dynamic bevel gear, real
Existing load-retarding energy conservation, while four-quadrant electric power generation feedback power；
Step 23, load speedup is adjusted: making n1+2*n3=n2, four-quadrant motor is in motoring condition, namely by changing four-quadrant
It rations the power supply the electric energy input of machine, controls the torque on motor gear, change torque between differential external gear and dynamic bevel gear point
Match, realizes load speedup function；
Step 24, it loads rotation-clogging protection: when loading stall, making n1=2*n3, then the power output of driving motor passes through four-quadrant
Motor recycles completely, realizes the protection under load locked rotor condition；
Step 25, load feedback is braked: making n2=2*n3, for driving motor without input, four-quadrant motor is in generating state, load
Residual amount of energy recycled by four-quadrant motor, realize the regenerative braking of load, quick shutdown.
7. differential planet gear parallel connection four quadrant running motor high-power energy saving speed regulating method according to claim 6,
Be characterized in that: in the step 25, as n2=2*n3, driving motor makes at four-quadrant motor without input or when driving motor failure
In motoring condition, at this point, four-quadrant motor can be loaded as motor drive.
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| CN201710695151.7A CN107588175B (en) | 2017-08-15 | 2017-08-15 | Differential planet gear parallel connection four-quadrant motor high-power energy saving speed-regulating system and method |
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| CN107588175B true CN107588175B (en) | 2019-07-23 |
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| CN109450167A (en) * | 2019-01-14 | 2019-03-08 | 中国船舶重工集团公司第七0三研究所 | A kind of mechatronics integration speed-regulating system and its soft-start method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3326536A1 (en) * | 1983-07-22 | 1985-02-07 | Maschinenfabrik Stahlkontor Weser Lenze GmbH & Co KG, 3251 Aerzen | Method and circuit arrangement for limiting the intermediate circuit voltage of a pulse inverter supplying an AC motor |
| CA1278334C (en) * | 1983-10-20 | 1990-12-27 | Horst Braun | Device for the controllable operation of out-of-balance drives with three-phase motors |
| CN1564010A (en) * | 2004-03-24 | 2005-01-12 | 上海鲍麦克斯电子科技有限公司 | Four-quadrant dynamo dynamometer machine |
| CN1933286A (en) * | 2006-08-29 | 2007-03-21 | 林祥钟 | Permanent magnetic brushless DC four-quadrant electric machine |
| CN102926339A (en) * | 2012-11-08 | 2013-02-13 | 北京蓝卡软件技术有限公司 | Variable frequency torque floodgate |
-
2017
- 2017-08-15 CN CN201710695151.7A patent/CN107588175B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3326536A1 (en) * | 1983-07-22 | 1985-02-07 | Maschinenfabrik Stahlkontor Weser Lenze GmbH & Co KG, 3251 Aerzen | Method and circuit arrangement for limiting the intermediate circuit voltage of a pulse inverter supplying an AC motor |
| CA1278334C (en) * | 1983-10-20 | 1990-12-27 | Horst Braun | Device for the controllable operation of out-of-balance drives with three-phase motors |
| CN1564010A (en) * | 2004-03-24 | 2005-01-12 | 上海鲍麦克斯电子科技有限公司 | Four-quadrant dynamo dynamometer machine |
| CN1933286A (en) * | 2006-08-29 | 2007-03-21 | 林祥钟 | Permanent magnetic brushless DC four-quadrant electric machine |
| CN102926339A (en) * | 2012-11-08 | 2013-02-13 | 北京蓝卡软件技术有限公司 | Variable frequency torque floodgate |
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