CN112350641A - Urban rail vehicle multiphase traction system and urban rail vehicle thereof - Google Patents
Urban rail vehicle multiphase traction system and urban rail vehicle thereof Download PDFInfo
- Publication number
- CN112350641A CN112350641A CN202011194746.2A CN202011194746A CN112350641A CN 112350641 A CN112350641 A CN 112350641A CN 202011194746 A CN202011194746 A CN 202011194746A CN 112350641 A CN112350641 A CN 112350641A
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- traction
- urban rail
- module
- phase motor
- rail vehicle
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- 238000000034 method Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
- H02P29/028—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the motor continuing operation despite the fault condition, e.g. eliminating, compensating for or remedying the fault
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a multiphase traction system of an urban rail vehicle and the urban rail vehicle. The system of the invention comprises: the method comprises the following steps: the traction inverter comprises a direct-current power supply module, a plurality of traction inverter modules and a multi-phase motor module; the input ends of the traction inversion modules are respectively connected with the direct-current power supply module, and the output ends of the traction inversion modules are respectively connected with each phase motor of the multi-phase motor module, so that each traction inversion module respectively controls the power supply input of each phase motor of the multi-phase motor module. The urban rail vehicle is driven by the multi-phase motors, each traction inverter controls the power input of each phase of motor, once a problem occurs in a certain phase and blocking pulse occurs, other phases can still form a circular magnetic field, and the power output of the shaft is not completely cut off, so that the vehicle performance is not rapidly reduced.
Description
Technical Field
The invention relates to the technical field of electricity, in particular to a multiphase traction system of an urban rail vehicle and the urban rail vehicle.
Background
With the rapid development of the rail transit industry, the carrying capacity and the running reliability of vehicles are required to be higher and higher. At present, a three-phase motor is basically adopted by a railway vehicle, and a three-phase inverter is matched with the motor. However, the defect is that once one motor fails, the corresponding traction inverter blocks pulses, the shaft loses power, the power performance of the vehicle is rapidly reduced, and only large-scale load shedding operation is performed, so that the vehicle operation is influenced.
Disclosure of Invention
In light of the above-mentioned technical problems, a multi-phase traction system for an urban rail vehicle is provided. The urban rail vehicle drive adopts the multi-phase motor, each traction inverter respectively controls the power input of each phase motor, once a certain phase has a problem blocking pulse, other phases can still form a circular magnetic field, and the power output of the shaft is not completely cut off, so that the vehicle performance is not rapidly reduced.
The technical means adopted by the invention are as follows:
an urban rail vehicle multiphase traction system comprising: the traction inverter comprises a direct-current power supply module, a plurality of traction inverter modules and a multi-phase motor module; the input ends of the traction inversion modules are respectively connected with the direct-current power supply module, and the output ends of the traction inversion modules are respectively connected with each phase motor of the multi-phase motor module, so that each traction inversion module respectively controls the power supply input of each phase motor of the multi-phase motor module.
Further, the direct current power supply module is used for providing direct current for the urban rail vehicle;
the traction inversion module is used for inverting the direct current provided by the direct current power supply module into alternating current and outputting the alternating current to each phase motor of the multi-phase motor module;
and the multi-phase motor module is used for driving the urban rail vehicle to operate according to the alternating current.
Further, the direct current power supply module is a storage battery pack.
Further, the traction inverter module is a single-phase inverter and comprises an inverter circuit;
and the inverter circuit is used for converting the direct current output by the direct current power supply module into alternating current and outputting the alternating current to each phase motor of the multi-phase motor module.
Furthermore, the number of phases of the multi-phase motor module is equal to the number of the traction inverter modules.
The invention also provides an urban rail vehicle which comprises the urban rail vehicle multiphase traction system.
Compared with the prior art, the invention has the following advantages:
when a certain phase fails, the power performance of the vehicle is not rapidly reduced due to the increase of redundancy; in addition, when the same power is output, the input voltage of the multi-phase motor is lower than that of the three-phase motor (the three-phase current basic grid voltage is DC750 or DC1500V), so that the voltage level of the DC input power supply can be relatively low, and the selectivity of the power supply can be relaxed.
For the above reasons, the present invention can be widely applied to the fields of electricity and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of the apparatus of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1, the present invention provides a multiphase traction system for an urban rail vehicle, comprising: the traction inverter comprises a direct-current power supply module, a plurality of traction inverter modules and a multi-phase motor module; the input ends of the traction inversion modules are respectively connected with the direct-current power supply module, and the output ends of the traction inversion modules are respectively connected with each phase motor of the multi-phase motor module, so that each traction inversion module respectively controls the power supply input of each phase motor of the multi-phase motor module.
In specific implementation, the multiphase motor module adopts a multiphase motor, the multiphase motor comprises a stator and a rotor, and specifically, the specific structure and the working principle of the multiphase motor can be described in the prior art, and are not described herein again.
As a preferred embodiment of the present invention, the dc power supply module is configured to provide dc current for an urban rail vehicle; the traction inversion module is used for inverting the direct current provided by the direct current power supply module into alternating current and outputting the alternating current to each phase motor of the multi-phase motor module; and the multi-phase motor module is used for driving the urban rail vehicle to operate according to the alternating current.
In a preferred embodiment of the present invention, the dc power supply module is a battery pack.
As a preferred embodiment of the present invention, the traction inverter module is a single-phase inverter, and includes an inverter circuit; and the inverter circuit is used for converting the direct current output by the direct current power supply module into alternating current and outputting the alternating current to each phase motor of the multi-phase motor module. It should be noted that the specific circuit structure of the inverter circuit may be set according to actual needs, and the specific circuit structure of the inverter circuit may refer to descriptions in the prior art, which are not described herein again.
In a preferred embodiment of the present invention, the number of phases of the multi-phase motor module is equal to the number of traction inverter modules.
The embodiment also provides an urban rail vehicle, which comprises the urban rail vehicle multiphase traction system provided by the embodiment, and the urban rail vehicle multiphase traction system has the same technical effects as the embodiment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A multiphase traction system for an urban rail vehicle, comprising: the traction inverter comprises a direct-current power supply module, a plurality of traction inverter modules and a multi-phase motor module; the input ends of the traction inversion modules are respectively connected with the direct-current power supply module, and the output ends of the traction inversion modules are respectively connected with each phase motor of the multi-phase motor module, so that each traction inversion module respectively controls the power supply input of each phase motor of the multi-phase motor module.
2. The multiphase traction system for urban rail vehicles according to claim 1,
the direct current power supply module is used for providing direct current for the urban rail vehicle;
the traction inversion module is used for inverting the direct current provided by the direct current power supply module into alternating current and outputting the alternating current to each phase motor of the multi-phase motor module;
and the multi-phase motor module is used for driving the urban rail vehicle to operate according to the alternating current.
3. The multiphase traction system of urban rail vehicles according to claim 1 or 2, wherein the direct current power supply module is a battery pack.
4. The urban rail vehicle multiphase traction system according to claim 1 or 2, wherein the traction inverter module is a single-phase inverter and comprises an inverter circuit;
and the inverter circuit is used for converting the direct current output by the direct current power supply module into alternating current and outputting the alternating current to each phase motor of the multi-phase motor module.
5. The urban rail vehicle multiphase traction system according to claim 1 or 2, wherein the number of phases of the multiphase motor modules is equal to the number of traction inverter modules.
6. An urban rail vehicle characterized by comprising the urban rail vehicle multiphase traction system according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011194746.2A CN112350641A (en) | 2020-10-31 | 2020-10-31 | Urban rail vehicle multiphase traction system and urban rail vehicle thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011194746.2A CN112350641A (en) | 2020-10-31 | 2020-10-31 | Urban rail vehicle multiphase traction system and urban rail vehicle thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112350641A true CN112350641A (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011194746.2A Pending CN112350641A (en) | 2020-10-31 | 2020-10-31 | Urban rail vehicle multiphase traction system and urban rail vehicle thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2788446Y (en) * | 2005-03-18 | 2006-06-14 | 大连新大路电气传动技术有限责任公司 | Alternative and direct vehicle dragging convertor |
| CN104270062A (en) * | 2014-10-22 | 2015-01-07 | 哈尔滨工业大学 | Three-phase H-bridge driving system for open type winding induction motor |
| CN107627881A (en) * | 2017-09-18 | 2018-01-26 | 电子科技大学 | A kind of discharge and recharge of electric automobile and motor driving integrated apparatus |
| CN107696872A (en) * | 2017-10-27 | 2018-02-16 | 中车南京浦镇车辆有限公司 | Permanent magnet direct-drive traction drive and method |
-
2020
- 2020-10-31 CN CN202011194746.2A patent/CN112350641A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2788446Y (en) * | 2005-03-18 | 2006-06-14 | 大连新大路电气传动技术有限责任公司 | Alternative and direct vehicle dragging convertor |
| CN104270062A (en) * | 2014-10-22 | 2015-01-07 | 哈尔滨工业大学 | Three-phase H-bridge driving system for open type winding induction motor |
| CN107627881A (en) * | 2017-09-18 | 2018-01-26 | 电子科技大学 | A kind of discharge and recharge of electric automobile and motor driving integrated apparatus |
| CN107696872A (en) * | 2017-10-27 | 2018-02-16 | 中车南京浦镇车辆有限公司 | Permanent magnet direct-drive traction drive and method |
Non-Patent Citations (2)
| Title |
|---|
| B.C. MECROW等: "Fault tolerant permanent magnet machine drives", 《1995 SEVENTH INTERNATIONAL CONFERENCE ON ELECTRICALMACHINES AND DRIVES (CONF. PUBL. NO. 412)》 * |
| ***等: "《无刷直流直线电动机》", 31 July 2012 * |
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Application publication date: 20210209 |
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