CN202939514U - Stepless adjustable inertia simulation control device for simulating operation conditions of locomotive - Google Patents
Stepless adjustable inertia simulation control device for simulating operation conditions of locomotive Download PDFInfo
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- CN202939514U CN202939514U CN2012204629184U CN201220462918U CN202939514U CN 202939514 U CN202939514 U CN 202939514U CN 2012204629184 U CN2012204629184 U CN 2012204629184U CN 201220462918 U CN201220462918 U CN 201220462918U CN 202939514 U CN202939514 U CN 202939514U
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- locomotive
- testing table
- frequency converter
- acceleration time
- simulation
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Abstract
The utility model discloses a stepless adjustable inertia simulation control device for simulating operation conditions of a locomotive. The control device comprises a test board, a locomotive and a contact network, wherein a rail on which the locomotive runs is arranged at one end of the test board; frequency conversion motors and flywheels are mounted at the other end of the test board in sequence; when the locomotive is started, the flywheels are used for loading the locomotive; the contact network is erected at the upper end of the test board; when the locomotive is operated on a rail of the test board in testing, one end of the locomotive is in contact with the contact network; a parameter input device, a database and a frequency converter CPU (central processing unit) are also arranged; acceleration time corresponding to different inertias is stored in the database; and a program for controlling output torque according the given acceleration time is arranged in the frequency converter CPU; the acceleration time is selected automatically from the database according to input simulation traction load and simulation finial speed, the time parameter is transmitted to the frequency converter CPU, and the frequency converter CPU controls the output torque according to the given acceleration time, controls the angular accelerations of the frequency conversion motors, and changes the load inertia J to simulate the varying load.
Description
Technical field
The utility model relates to a kind of adjustable inertia control device, relates in particular to a kind of stepless adjustable inertia simulation control device of simulating the locomotive operating condition.
Background technology
At present, when locomotive is tested on rolling rig, locomotive is when just beginning to start, usually all there is no load, be that locomotive only just can load to locomotive after variable-frequency motor rotates a period of time and has certain rotating speed, therefore, the operating mode during simulation locomotive operation that can not be really, locomotive test does not have very large reliability yet.
Worked out recently a kind of flywheel gear, this flywheel is installed on testing table, when locomotive rotates at the beginning, can load to locomotive, the serious simulation that is the startup situation of locomotive.The part but flywheel gear also comes with some shortcomings because the moment of inertia of flywheel gear is changeless value, is also changeless so give the added load of locomotive, therefore can only simulate dead load, can not simulate varying duty.When but locomotive starts operation, added load is not changeless, so need a kind of device that can change the locomotive load, namely load inertia can change, realize the stepless adjustable of load inertia, the situation when coming to simulate more really the locomotive startup with this.
The utility model content
The purpose of this utility model is to provide a kind of stepless adjustable inertia simulation control device of simulating the locomotive operating condition, when locomotive starts, adopts this device can change load variation, realizes the stepless adjustable of load inertia.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
a kind of stepless adjustable inertia simulation control device of simulating the locomotive operating condition comprises testing table, locomotive, contact electrical network, on testing table, an end is provided with the track of locomotive operation, rail flanges is equipped with the testing table rail wheel, the other end is disposed with universal shaft, torque sensor, synchronous step-up gear, variable-frequency motor and flywheel, the output terminal of described variable-frequency motor is connected with the input end of flywheel, and set up the contact electrical network in the testing table upper end, be used for providing electric energy, described locomotive inside is equipped with traction electric machine and train wheel, operate in during test on the track of testing table, one end with contact electrical network contact, an end contacts with testing table rail wheel on testing table, it is characterized by, also be provided with parameter input device on testing table, database, frequency converter CPU, parameter input device is used for input parameter, deposit acceleration time corresponding to different inertia in database, the program of controlling the output torque according to the given acceleration time is installed in frequency converter CPU, tractive load and final speed according to the band simulation of inputting from parameter input device, can select automatically the acceleration time from database, and time parameter is passed to frequency converter CPU, frequency converter CPU controls the output torque according to the given acceleration time, control the angular acceleration of variable-frequency motor, change load inertia J.
As preferably, described contact electrical network is set up in the oblique upper of locomotive operation one end on testing table.
As preferably, the electric energy that described contact electrical network provides is the 25kv single-phase alternating current.
The beneficial effects of the utility model are, because the flywheel gear with suitable moment of inertia has been designed in the variable-frequency motor back on testing table, be about to the moment of inertia that train rectilinear motion inertia equivalence on the line becomes flywheel, flywheel gear can load to locomotive when locomotive begins to start, rather than must wait until traction electric machine rotate after and have certain rotating speed after just load to locomotive, simulated really the real work situation that the locomotive band carries startup.also be provided with database, frequency converter CPU, deposit acceleration time corresponding to different inertia in database, the program of controlling the output torque according to the given acceleration time is installed in frequency converter CPU, tractive load and final speed according to the band simulation of inputting, can select automatically the acceleration time from database, and time parameter is passed to frequency converter CPU, frequency converter CPU controls the output torque according to the given acceleration time, control the angular acceleration of variable-frequency motor, change load inertia J, so can load variable load to locomotive, realize the stepless adjustable of load inertia.
Description of drawings
Fig. 1 is the structural representation of the simulation locomotive operating condition that provides of the utility model;
Fig. 2 is the process flow diagram of the stepless adjustable inertia simulation control device of the simulation locomotive operating condition that provides of the utility model.
In figure:
1, contact electrical network, 2, locomotive, 21, train wheel, 3, testing table, 31, testing table raceway wheel, 32, universal shaft, 33, torque sensor, 34, synchronous step-up gear, 35, variable-frequency motor, 36, flywheel, 37, parameter input device, 38, database, 39, frequency converter CPU.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment.
As shown in Figure 1, in the present embodiment, whole system comprises contact electrical network 1, locomotive 2, testing table 3,
On testing table 3, an end is provided with the track of locomotive 2 operations, rail flanges is equipped with testing table rail wheel 31, the other end is disposed with universal shaft 32, torque sensor 33, synchronous step-up gear 34, variable-frequency motor 35 and flywheel 36, the output terminal of described variable-frequency motor 35 is connected with the input end of flywheel 36, when locomotive 2 started, flywheel 36 was used for loading dead load to locomotive 2.Set up contact electrical network 1 in testing table 3 upper ends, be used for providing energy to locomotive, described contact electrical network 1 is preferably and is arranged on testing table 3 oblique uppers.Locomotive 2 inside are equipped with traction electric machine and train wheel 21, one ends and contact electrical network 1 and be connected, and the other end contacts with testing table rail wheel 31 by train wheel 21.also be provided with parameter input device 37 on testing table 3, database 38, frequency converter CPU39, parameter input device 37 is used for pre-entering parameter, the parameter of inputting is tractive load to be simulated and the final terminal velocity of variable-frequency motor 35, deposit acceleration time corresponding to different inertia in database 38, the program of controlling the output torque according to the given acceleration time is installed in frequency converter CPU39, tractive load and final speed according to the band simulation of inputting from parameter input device 37, can select the acceleration time automatically from database 38, and time parameter is passed to frequency converter CPU39, frequency converter CPU39 controls the output torque according to the given acceleration time, control the angular acceleration of variable-frequency motor 35, change load inertia J, realize the stepless adjustable of load inertia.Wherein control according to the time mode of exporting torque and be preferably Linear Control,
during work, locomotive 2 obtains electric energy electrical network 1 from contact and is converted into mechanical energy by traction electric machine and is delivered on train wheel 21, train wheel is namely rotatable, by the friction force between train wheel 21 and testing table raceway wheel 31, train wheel 21 motoring ring test platform raceway wheels 31 rotate, and then drive successively universal shaft 32, torque sensor 33, synchronous step-up gear 34, the rotation of variable-frequency motor 35 and flywheel 36, when locomotive 2 starts, flywheel 36 is fixed load for the locomotive 2 that starts, meanwhile, stepless adjustable inertia simulation control device is also that locomotive 2 adds variable load.
as shown in Figure 2, this process flow diagram is that stepless adjustable inertia simulation control device is that locomotive 2 adds loaded flow process, for 2 loadings of locomotive are variable load, its size can be controlled in the following manner, in advance tractive load and the final terminal velocity of input tape simulation from the parameter input device 37, tractive load and final terminal velocity according to the band simulation of inputting, can select the acceleration time automatically from database 38, time parameter is passed to frequency converter CPU39, frequency converter CPU39 controls the output torque according to the given acceleration time, this control is preferably Linear Control, control the angular acceleration of variable-frequency motor 35.Variable-frequency motor 35 accelerates to final rotating speed w from initial zero velocity, and its kinetic energy that has is: E=1/2*J*W2, P=dE/dt=J*W*a, J=P/ (W*a), wherein E: kinetic energy, J: moment of inertia, W: motor medium speed, P: power, a: angular acceleration.Be the moment of inertia that can simulate of variable-frequency motor 35 relevant with power of motor, angular velocity, angular acceleration, as long as control the output torque of variable-frequency motor 35, control its from the time that initial velocity W1 accelerates to whole angular velocity W2 be pilot angle acceleration a, namely be equivalent in having changed load inertia, simulate really inertia J, realized the stepless adjustable of load inertia.
As a kind of preferred embodiment, the electric energy that described contact electrical network 1 provides is the 25kv single-phase alternating current.
When stepless adjustable inertia simulation control device loaded to locomotive 2, step was as follows:
At first the first step inputs the final terminal velocity of tractive load to be simulated and electric machine rotation from parameter input device 37;
Second step, the tractive load to be simulated according to the difference of input and the final terminal velocity of electric machine rotation find out the corresponding acceleration time from database 38;
The 3rd step, the acceleration time that finds from database 38 is passed to frequency converter CPU39, frequency converter CPU39 is according to given acceleration time Linear Control output torque;
In the 4th step, variable-frequency motor 35 is passed in the torque of frequency converter CPU39 output, because the different angular acceleration of torque are also different, so can control the output torque by the control time, and then the pilot angle acceleration, the different inertia J of angular acceleration are also different, therefore realized the stepless adjustable of load inertia.
Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described just in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection domain.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, within these modes all will fall into protection domain of the present utility model.
Claims (3)
1. a stepless adjustable inertia simulation control device of simulating the locomotive operating condition, comprise testing table (3), locomotive (2), contact electrical network (1);
the upper end of described testing table (3) is provided with the track of locomotive (2) operation, rail flanges is equipped with testing table rail wheel (31), the other end is disposed with universal shaft (32), torque sensor (33), synchronous step-up gear (34), variable-frequency motor (35) and flywheel (36), the output terminal of described variable-frequency motor (35) is connected with the input end of flywheel (36), and set up contact electrical network (1) in testing table (3) upper end, be used for providing electric energy, described locomotive (2) inside is equipped with traction electric machine and train wheel (21), operate in during test on the track of testing table (3), one end with contact electrical network (1) contact, one end contacts with testing table rail wheel (31) on testing table (3),
it is characterized in that: also be provided with parameter input device (37) on testing table (3), database (38), frequency converter CPU(39), parameter input device (37) is used for input parameter, deposit acceleration time corresponding to different inertia in database (38), the program of controlling the output torque according to the given acceleration time is installed frequency converter CPU(39), tractive load and final speed according to the band simulation of inputting from parameter input device (37), can select automatically the acceleration time from database (38), and time parameter is passed to frequency converter CPU(39), frequency converter CPU(39) control the output torque according to the given acceleration time, control the angular acceleration of variable-frequency motor (35), change load inertia J.
2. the stepless adjustable inertia simulation control device of simulation locomotive operating condition according to claim 1 is characterized in that: described contact electrical network (1) is set up in the oblique upper of upper locomotive (2) operation of testing table (3) one end.
3. the stepless adjustable inertia simulation control device of simulation locomotive operating condition according to claim 2, it is characterized in that: the electric energy that described contact electrical network (1) provides is the 25kv single-phase alternating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204629184U CN202939514U (en) | 2012-09-11 | 2012-09-11 | Stepless adjustable inertia simulation control device for simulating operation conditions of locomotive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204629184U CN202939514U (en) | 2012-09-11 | 2012-09-11 | Stepless adjustable inertia simulation control device for simulating operation conditions of locomotive |
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| CN202939514U true CN202939514U (en) | 2013-05-15 |
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| CN2012204629184U Expired - Lifetime CN202939514U (en) | 2012-09-11 | 2012-09-11 | Stepless adjustable inertia simulation control device for simulating operation conditions of locomotive |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854024A (en) * | 2012-09-11 | 2013-01-02 | 北京铁道工程机电技术研究所有限公司 | Stepless adjustable inertia simulation control device for simulating operation conditions of locomotive |
| CN108507805A (en) * | 2017-02-24 | 2018-09-07 | 中国铁建高新装备股份有限公司 | One kind being based on flywheel-generating set inertia simulation system |
-
2012
- 2012-09-11 CN CN2012204629184U patent/CN202939514U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854024A (en) * | 2012-09-11 | 2013-01-02 | 北京铁道工程机电技术研究所有限公司 | Stepless adjustable inertia simulation control device for simulating operation conditions of locomotive |
| CN102854024B (en) * | 2012-09-11 | 2015-11-18 | 北京铁道工程机电技术研究所有限公司 | A kind of stepless adjustable inertia simulation control device simulating locomotive operating condition |
| CN108507805A (en) * | 2017-02-24 | 2018-09-07 | 中国铁建高新装备股份有限公司 | One kind being based on flywheel-generating set inertia simulation system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |
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| CX01 | Expiry of patent term |