CN202798544U - Dual-supply motor drive system - Google Patents
Dual-supply motor drive system Download PDFInfo
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- CN202798544U CN202798544U CN201220410946.1U CN201220410946U CN202798544U CN 202798544 U CN202798544 U CN 202798544U CN 201220410946 U CN201220410946 U CN 201220410946U CN 202798544 U CN202798544 U CN 202798544U
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Abstract
The utility model discloses a dual-supply motor drive system. The system comprises an AC (alternating current) motor (3) having a first winding set (1) and a second winding set (2), a first power supply (4), a second power supply (5), a logic algorithm circuit (6), a drive circuit (7), an AC-DC (direct current) conversion module (8) and a control module (9). The dual-supply motor drive system is characterized in that the first power supply (4) and the second power supply (5) are respectively coupled to the AC-DC conversion module (8); the drive circuit (7) is coupled to the AC-DC conversion module (8); the AC-DC conversion module (8) is coupled to the wire outlet ends of the first winding set (1) and the second winding set (2) of the AC motor (3); the logic algorithm circuit (6) is coupled to the drive circuit (7); and the control module (9) is coupled to the logic algorithm circuit (6). The motor drive system which is designed for overcoming the defects of a conventional vehicular three-phase motor system can optimize the supply means of power supplies and increase the working reliability.
Description
Technical field
The utility model relates to the electric motor and controller technical field, particularly a kind of motor driven systems of dual power supply.
Background technology
At present, in hybrid vehicle and pure electric automobile automobile development, service behaviour, mode of operation and the energy-saving effect of its automobile driving system under different road conditions there has been higher requirement.Drive system needs to realize suitable programme of work under different road conditions, travel speed, operate power, reach the technical characterstic such as energy-conservation, safe and reliable, efficient, easy to operate, and traditional three phase electric machine drive system programme of work is difficult to realize diversification, and energy-saving effect and energy recovering effect are not good yet.Along with the continuous increase of power demand of motors, for the application scenario of frequency control that motor driven systems requires, traditional three phase electric machine system generally realizes by low-voltage, high-current or high pressure low current two schemes.For the low-voltage, high-current scheme, be subject to the restriction of power device maximum permissible current, the type selecting of power device and cost be bad control all; For high pressure low current scheme, require motor to have the higher class of insulation, increased the cost of motor and the difficulty of material type selecting.Waiting under the fault mode of system's phase shortage, the three phase electric machine winding current sharply rises, and vibration noise increases, and affects runnability and the life-span of system, and reliability is relatively poor.Therefore, for the occasion that hybrid vehicle and pure electric automobile etc. are had relatively high expectations to motor driven systems reliability and practicality, motor driven systems need to upgrade and improve.
The utility model content
The purpose of this utility model provides a kind of various road conditions and transport condition of adapting to, and can have the motor driven systems of certain ability that works in the situation that motor breaks down.
The utility model takes following technical scheme to realize: alternating current machine, the first power supply, second source, logical algorithm circuit, drive circuit, AC-DC conversion module, control module with first group of winding and second group of winding, the first power supply and second source are coupled respectively to the AC-DC conversion module, drive circuit is coupled to the AC-DC conversion module, the AC-DC conversion module is coupled to first group of winding of alternating current machine and the leading-out terminal of second group of winding, the logical algorithm which couple is to drive circuit, and control module is coupled to the logical algorithm circuit.
Drive circuit carries out power amplification to the signal of inputting it; The direct current that the AC-DC conversion module is inputted the first power supply and second source carries out direct current and becomes the conversion that exchanges, and the alternating current that alternating current machine is refluxed carries out the conversion of AC-DC.
First group of winding is three phase windings, second group of winding is three phase windings, the first winding and the second winding are wound on the motor stator, and the electrical degree between first group of winding and the second group of winding differs 30 degree or 0 degree, electricity isolation between first group of winding and the second group of winding.
The first power supply is DC power supply, and the first power supply and first group of winding form the energy supply coupling; Second source is DC power supply, and second source and second group of winding form the energy supply coupling.
When the first power supply and second source were powered to alternating current machine simultaneously, the first power supply was consistent with the frequency of the electric current that second source provides.
The utility model compared with prior art has significant advantage and beneficial effect, is embodied in the following aspects:
Automobile driving system by control module according to the first power supply, second source, alternating current machine and the vehicle traveling information of its collection, traffic information etc., make rational energy distribution scheme, and to subordinate's circuit output order, thereby realize the power division between the first power supply, second source, first group of winding and second group of winding, at drive system power demand hour, the reasonable distribution energy, conserve energy, and can be in the situation such as brake, slide recuperated energy, thereby realize best system works and energy-saving effect.
Specifically can be presented as: the first Power supply, second source is not powered, first group of winding drive motors; Or first power supply do not power second source power supply, second group of winding drive motors; Or first power supply and second source jointly power two groups of equal drive motors of winding; Thereby or the electric energy that the first power supply is accepted alternating current machine and provided charges; Thereby or the electric energy that second source is accepted alternating current machine and provided charges; Thereby or the electric energy that the first power supply and second source are accepted simultaneously alternating current machine and provided charges.
In addition, when two groups of windings of motor when wherein one group of winding system breaks down, the winding that another group does not break down can work on, and to guarantee that motor normally moves, has improved the reliability of system.
Description of drawings
Fig. 1 is the structural representation of duplicate supply motor driven systems of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is further described; below just exemplary about the description of execution mode of the present utility model; be not in order to limit claimed theme of the present utility model; for other variations in the claim protection range that the described embodiment of the utility model also exists, all belong to the theme of the required protection of the utility model.
For mentioning getting " coupling " in the utility model, definition according to electric, electronics, mechanical field, refer to exist between the input of two or more circuit elements or electric network and the output and closely cooperate and influence each other, and by interacting from the phenomenon of a side direction opposite side signal transmission or energy, summary say that coupling just refers to that two or more entities interdepend and measures in one of the other side.Can be understood as the transmission means of digital signal, voltage, electric current homenergic stream in the utility model, " coupling " in of the present utility model according to interactively under the different situations between each module is further understood that connected directly or indirectly.Although so announced a kind of exemplary layout and structure of each assembly among the embodiment of the present utility model, also be included in other layouts and the structure that have in the scope of protecting theme under the different coupled modes in the protection theme of this utility model.
Such as accompanying drawing 1, wherein, 1 is first group of winding, and 2 is second group of winding, the 3rd, and alternating current machine, 4 is first power supplys, the 5th, second source, the 6th, logical algorithm circuit, the 7th, drive circuit, the 8th, AC-DC conversion module, the 9th, control module.
As shown in Figure 1, the first power supply 4, second source 5 are connected to respectively AC-DC conversion module 8, separate between the first power supply 4 and the second source 5, AC-DC conversion module 8 with first group of winding 1 be connected the leading-out terminal of group winding 2 and be connected respectively, the first power supply 4 is as the power supply source of first group of winding 1 of alternating current machine 3, and second source 5 is as the power supply source of second group of winding 2 of alternating current machine 3.The first power supply 4 is battery or is electric capacity that second source 5 is battery or electric capacity.Control module 9 is connected to logical algorithm circuit 6, and logical algorithm circuit 6 is connected to drive circuit 7, and drive circuit 7 is connected to AC-DC conversion module 8.
Control module 9 receives information of voltage, current information, the state of charge information from the first power supply 4 and second source 5, and the state information of alternating current machine 3, speed information, driver's the information such as command information.And according to the information that receives to logical algorithm circuit 6 output orders, after receiving, 6 pairs of instructions of logical algorithm circuit will process the drive circuit 7 that is passed to next stage with the result of computing, drive circuit 7 carries out the signal that receives to be passed to AC-DC conversion module 8 after the power amplification, the direct current that AC-DC conversion module 8 can be inputted the first power supply 4 and second source 5 is converted into alternating current, also the alternating current that is refluxed by alternating current machine 3 can be converted into direct current, 8 pairs of AC-DC conversion modules by its energy flow carry out AC-DC or DC-AC conversion, and realize the switching of the break-make of energy flow between the first power supply 4 and second source 5 and the alternating current machine 3, finish alternating current machine 3, the switching of the working method of the first power supply 4 and second source 5.First group of winding 1 and second group of winding 2 of alternating current machine 3 are stator winding and are three phase windings, and the first winding and the second winding are wound on the motor stator; Electricity isolation between first group of winding 1 and the second group of winding 2, namely separate between first group of winding 1 and the second group of winding 2; Electrical degree between first group of winding 1 and the second group of winding 2 differs 30 degree or 0 degree.
Control module 9 is finished the conversion of the operating state of the first power supply 4, second source 5 and alternating current machine 3 according to the different situations configuration-system, and the form of expression is: 4 power supplies of the first power supply, and second source 5 is not powered; Or first power supply 4 do not power second source 5 power supply; Or first power supply 4 and second source 5 jointly power; Thereby or the electric energy that the first power supply 4 is accepted alternating current machine 3 and provided charges; Thereby or the electric energy that second source 5 is accepted alternating current machine 3 and provided charges; Thereby or the first power supply 4 and second source 5 electric energy accepting simultaneously alternating current machine 3 and the provide working method such as charge.
Next will be described further according to automobile execution mode to above working method under different road conditions and transport condition.
When automobile is in starting state, because the difference of the situations such as the load of automobile, road conditions, desired acceleration, the required starting power of automobile is also different, system can be configured to automatically according to the size of required starting power: power demand hour is configured to the independently-powered or second source 5 of the first power supply 4 and powers alone, is configured to the first power supply 4 and second source 5 when power demand is large and jointly powers.
When automobile was at the uniform velocity transport condition, system usually automatically is configured to the first power supply 4 or second source 5 is powered alone, if but the load of automobile is excessive, or also can automatically be configured to the first power supply 4 and second source 5 in the larger situation of road conditions resistance and jointly power.
When automobile is in when giving it the gun state, according to situations such as automobile load, road conditions, desired acceleration, system can be configured to automatically according to the size of power demand: power demand hour is powered alone by the first power supply 4 or second source 5 is powered alone, automatically is configured to the first power supply 4 and second source 5 when power demand is large and jointly powers.
When automobile was in the transport condition that brakes or slide, system was configured to reclaim electric energy to the first power supply 4 or the second source 5 that alternating current machine 3 produces automatically.The alternating current machine 3 that determines according to the acceleration that slows down and braking strength produces callable electric energy, system can be configured to following electric energy recovery scheme according to state informations such as motor status, power supply status, transport conditions: the first power supply 4 receives electric energy, and second source 5 does not receive electric energy; Or second source 5 reception electric energy, the first power supply 4 does not receive electric energy; Or first power supply 4 and second source 5 receive simultaneously electric energy.
When system is in the state of a Power supply, system also can automatically dispose another power supply and whether receive the electric energy that alternating current machine 3 produces according to the supply and demand situation of different capacity, and when the first power supply and 4 second sources 5 are powered to alternating current machine 3 simultaneously, make the frequency of the electric current that the first power supply 4 and second source 5 provide consistent by drive system configuration, can effectively turn round with the rotor that guarantees alternating current machine 3.
Electric recoverable scheme about power supply 4 and 5 pairs of alternating current machines 3 of power supply here is described further: control module 9 send instruction to logical algorithm circuit 6 again to drive circuit 7 last best friend's DC conversion modules 8, finish the configuration of drive system working method.A kind of mode is to drive alternating current machine 3 to one group of winding power supply corresponding with it by a power supply after 8 inversions of AC-DC conversion module, another group winding produces induced electromotive force under rotor rotates, give another power source charges after 8 rectifications of AC-DC conversion module; Another kind of mode is for being driven the rotor (such as transport conditions such as braking, slide) of alternating current machine 3 by external impetus, two groups of windings produce induced electromotive force, finish the charging effect to power supply after 8 rectifications of AC-DC conversion module.Foregoing description is the programme of work of drive system in the loop situation of opening charging, drive system is in the driving process of reality, control module 9 can be by gathering alternating current machine 3 state informations, the state information such as supply voltage and state-of-charge, driver's operation information and road conditions, velocity informations etc. determine that the current electric energy that whether carries out reclaims, and two power supplys charging scheme separately, thereby further drive system is configured, be full of electricity when power supply or existing in other situations that are not suitable for power supply is charged, drive system will not opened charge circuit, or break charge circuit in charging process.The break-make of the break-make of the first power supply 4 charge circuits and the charge circuit of second source 5 is separate.If alternating current machine 3 is AC induction motor, then when opening the charge circuit of certain power supply, the winding that needs to mate to this power supply provides excitation; If alternating current machine 3 is magneto, then when opening the charge circuit of certain power supply, not needing provides excitation to the winding that this power supply mates.
About above working method, the first power supply 4 and first group of winding 1 form the energy supply coupling, second source 5 and second group of winding 2 form the energy supply coupling, no matter be that the electric energy that Power supply or motor reflux charges to power supply namely, its corresponding relation is: no matter the first power supply 4 is that power supply or charging all are corresponding with first group of winding 1, and no matter second source 5 is that power supply or charging all are corresponding with second group of winding 2.
It is as follows about the working method of this drive system when alternating current machine 3 breaks down: when two groups of windings, one group of winding wherein of alternating current machine 3 breaks down, by control module 9 configuration logic algorithm circuit 6, logical algorithm circuit 6 configuration driven circuit 7, drive circuit 7 configuration AC-DC conversion modules 8, make another group winding that does not break down guarantee that under the power supply of corresponding with it power supply alternating current machine 3 works on, normally move to guarantee drive system.
For being example embodiment of the present utility model; should be understood to is wherein a certain demonstrative example in the protection range of claims of the present utility model; have the directiveness effect that those skilled in the art is realized corresponding technical scheme, but not to restriction of the present utility model.
Claims (6)
1. duplicate supply motor driven systems, comprise: the alternating current machine (3) with first group of winding (1) and second group of winding (2), the first power supply (4), second source (5), logical algorithm circuit (6), drive circuit (7), AC-DC conversion module (8), control module (9), it is characterized in that: described the first power supply (4) and second source (5) are coupled respectively to AC-DC conversion module (8), drive circuit (7) is coupled to AC-DC conversion module (8), AC-DC conversion module (8) is coupled to first group of winding (1) of alternating current machine (3) and the leading-out terminal of second group of winding (2), logical algorithm circuit (6) is coupled to drive circuit (7), and control module (9) is coupled to logical algorithm circuit (6).
2. duplicate supply motor driven systems according to claim 1, it is characterized in that: described drive circuit (7) carries out power amplification to the signal of inputting it.
3. duplicate supply motor driven systems according to claim 1, it is characterized in that: the direct current that described AC-DC conversion module (8) is inputted the first power supply (4) and second source (5) carries out direct current and becomes the conversion that exchanges, and the alternating current that alternating current machine (3) is refluxed carries out the conversion of AC-DC.
4. duplicate supply motor driven systems according to claim 1, it is characterized in that: described first group of winding (1) is three phase windings, second group of winding (2) is three phase windings, the first winding (1) and the second winding (2) are wound on the motor stator, electrical degree between first group of winding (1) and the second group of winding (2) differs 30 degree or 0 degree, electricity isolation between first group of winding (1) and the second group of winding (2).
5. duplicate supply motor driven systems according to claim 1 is characterized in that: described the first power supply (4) is DC power supply, and the first power supply (4) forms the energy supply coupling with first group of winding (1); Second source (5) is DC power supply, and second source (5) forms the energy supply coupling with second group of winding (2).
6. duplicate supply motor driven systems according to claim 1, it is characterized in that: described the first power supply (4) and second source (5) are simultaneously to alternating current machine (3) when powering, and the first power supply (4) is consistent with the frequency of the electric current that second source (5) provides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220410946.1U CN202798544U (en) | 2012-08-20 | 2012-08-20 | Dual-supply motor drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220410946.1U CN202798544U (en) | 2012-08-20 | 2012-08-20 | Dual-supply motor drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202798544U true CN202798544U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220410946.1U Expired - Lifetime CN202798544U (en) | 2012-08-20 | 2012-08-20 | Dual-supply motor drive system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202798544U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017127170A (en) * | 2016-01-12 | 2017-07-20 | 有限会社シー・アンド・エス国際研究所 | Three-phase synchronous machine driving generator |
| CN112020452A (en) * | 2018-02-20 | 2020-12-01 | 斯托巴电子系统有限责任公司 | Drive train having a battery outputting two different voltages, electric drive system having a high-voltage winding surrounding a low-voltage rod, electric motor having a separate high-voltage pulse inverter, and method for operating an electric motor |
-
2012
- 2012-08-20 CN CN201220410946.1U patent/CN202798544U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017127170A (en) * | 2016-01-12 | 2017-07-20 | 有限会社シー・アンド・エス国際研究所 | Three-phase synchronous machine driving generator |
| CN112020452A (en) * | 2018-02-20 | 2020-12-01 | 斯托巴电子系统有限责任公司 | Drive train having a battery outputting two different voltages, electric drive system having a high-voltage winding surrounding a low-voltage rod, electric motor having a separate high-voltage pulse inverter, and method for operating an electric motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210527 Address after: 713702 No.5 Fengjing Avenue, Fengdong new town, Xi'an City, Shaanxi Province Patentee after: Shaanxi fast Songzheng Electric Drive System Co.,Ltd. Address before: 300308 No.1, Xishi Road, Airport Economic Zone, Dongli District, Tianjin Patentee before: TIANJIN SANTROLL ELECTRIC AUTOMOBILE TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |