CN203326944U - DSP-based six-phase induction motor controller - Google Patents
DSP-based six-phase induction motor controller Download PDFInfo
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- CN203326944U CN203326944U CN2013203706830U CN201320370683U CN203326944U CN 203326944 U CN203326944 U CN 203326944U CN 2013203706830 U CN2013203706830 U CN 2013203706830U CN 201320370683 U CN201320370683 U CN 201320370683U CN 203326944 U CN203326944 U CN 203326944U
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- inverter circuit
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Abstract
Disclosed in the utility model is a DSP-based six-phase induction motor controller. The controller comprises a power supply conversion circuit for realizing AC-DC-AC conversion, a DSP master controller connected with the power supply conversion circuit, a six-phase induction motor connected with the power supply conversion circuit, a driving isolating module connected between a PWM terminal of the DSP master controller and power supply conversion circuit, and a current and voltage detection module connected between the six-phase induction motor and an ADC terminal of the DSP master controller. And a position feedback terminal of the six-phase induction motor is connected with a CAP terminal of the DSP master controller. According to the DSP-based six-phase induction motor controller, defects of large harmonic loss, large torque pulsation and low reliability and the like in the prior art can be overcome, thereby realizing advantages of low harmonic loss, small torque pulsation and high reliability.
Description
Technical field
The utility model relates to the electric machines control technology field, particularly, relates to a kind of Six-phase Induction Motor controller based on DSP.
Background technology
In in the past 20 years, high-power electronic device and high-power, the development of low-cost microprocessor and the development of modern AC electric machines control technology, promoted the develop rapidly of AC speed regulating greatly.The restriction of power electronic device rated voltage and rated current makes multiphase induction motor arise at the historic moment, because can realize that like this low voltage power devices drives heavy-duty motor.
Multiphase induction motor is mainly used on the high-power transmissions such as military affairs, space flight, naval vessel propelling at present.With the three phase electric machine drive system, compare, the multiphase induction motor system has following outstanding advantage: the drive system global reliability is high.Adopt the drive system of heterogeneous redundancy structure, when the one (or several) brachium pontis open fault of the one (or several) stator winding open circuited of multiphase induction motor or inverter, can not affect the start-up and operation of drive system.Speed governing has more control resource and potential.The employing polyphase inverter is powered, and can greatly improve the cost performance of governing system.Realize high-power transmission by low voltage power devices, avoided by associated quiet, the dynamic voltage-sharing not come of power device series.The torque pulsation frequency increases and the minimizing of pulsation amplitude, and the dynamic and static characteristic of system is improved, and the rotor harmonic current reduces, and harmonic loss descends.
Six-phase Induction Motor has been applied in propulsion system, such as marine propuision system and electric car propulsion system.Because reliability is high and superior electromagnetic torque characteristic, polyphase machine is just more and more studied by scholars.
In realizing process of the present utility model, the inventor finds in prior art at least to exist the defect such as harmonic loss is large, torque pulsation is large and reliability is low.
The utility model content
The purpose of this utility model is, for the problems referred to above, proposes a kind of Six-phase Induction Motor controller based on DSP, with the advantage that realizes that harmonic loss is little, torque pulsation is little and reliability is high.
For achieving the above object, the technical solution adopted in the utility model is: a kind of Six-phase Induction Motor controller based on DSP, comprise for realizing the power-switching circuit of AC-DC-AC conversion, the DSP main controller and the Six-phase Induction Motor that with described power-switching circuit, are connected respectively, be connected to the pulse width modulation end (be PWM end) of described DSP main controller and the driving isolation module between power-switching circuit, and be connected to electric current, voltage detection module between the analog-to-digital conversion end (being that ADC holds) of described Six-phase Induction Motor and DSP main controller; The position feedback end of described Six-phase Induction Motor is connected with the capture interrupt port of DSP main controller (being the CAP end).
Further, described power-switching circuit, comprise the rectification circuit be electrically connected to city, and first inverter circuit and second inverter circuit of parallel join between described rectification circuit and Six-phase Induction Motor; The first output of described isolation module and the second output, be connected with the control end of the second inverter circuit with the control end of the first inverter circuit respectively; The protection end of described the first inverter circuit is connected with the PDPINT of DSP main controller end, and the protection end of the second inverter is connected with the PDPINT of DSP main controller end; PDP end and PDPINT end, as the signal receiving end of DSP timer braking, Low level effective;
3 outputs of described the first inverter circuit are connected with a, the b of Six-phase Induction Motor, the input of c three-phase, 3 outputs of the second inverter are connected with d, the e of Six-phase Induction Motor, the input of f three-phase, 6 common ports of the first inverter circuit and the second inverter circuit and Six-phase Induction Motor, be connected to respectively 6 inputs of electric current, voltage detection module.
Further, described power-switching circuit, also comprise the filter capacitor be connected between rectification circuit and corresponding inverter circuit.
Further, described rectification circuit, comprise the uncontrollable rectifier bridge consisted of first to fourth diode D1-D4.
Further, described the first inverter circuit or the second inverter circuit, comprise intelligent power module.
Further, described Six-phase Induction Motor, comprise double three-phase machine.
Further, described DSP main controller, comprise the first task manager EVA and second event manager EVB.The task manager that EV is DSP main controller inside, be known technology, is respectively two of A and B, so be called EVA and EVB, EVA manages the output of one group of 6 road PWM ripple, and EVB manages the output of other one group of 6 road PWM.
The Six-phase Induction Motor controller based on DSP of each embodiment of the utility model, owing to comprising for realizing the power-switching circuit of AC-DC-AC conversion, the DSP main controller and the Six-phase Induction Motor that with power-switching circuit, are connected respectively, be connected to the PWM end of DSP main controller and the driving isolation module between power-switching circuit, and electric current, the voltage detection module of the ADC that is connected to Six-phase Induction Motor and DSP main controller between holding; The position feedback end of Six-phase Induction Motor is connected with the CAP of DSP main controller end; Can reduce the harmonic current on rotor harmonic loss and DC bus, reduce torque pulsation; Thereby can overcome the defect that in prior art, harmonic loss is large, torque pulsation is large and reliability is low, with the advantage that realizes that harmonic loss is little, torque pulsation is little and reliability is high.
Other features and advantages of the utility model will be set forth in the following description, and, partly from specification, become apparent, or understand by implementing the utility model.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
The accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms the part of specification, with embodiment mono-of the present utility model, is used from explanation the utility model, does not form restriction of the present utility model.In the accompanying drawings:
The operation principle schematic diagram that Fig. 1 is the Six-phase Induction Motor controller of the utility model based on DSP.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for description and interpretation the utility model, and be not used in restriction the utility model.
According to the utility model embodiment, as shown in Figure 1, provide a kind of Six-phase Induction Motor controller based on DSP.
Referring to Fig. 1, the Six-phase Induction Motor controller based on DSP of the present embodiment, comprise for realizing the power-switching circuit of AC-DC-AC conversion, the DSP main controller and the Six-phase Induction Motor that with power-switching circuit, are connected respectively, be connected to the PWM end of DSP main controller and the driving isolation module between power-switching circuit, and electric current, the voltage detection module of the ADC that is connected to Six-phase Induction Motor and DSP main controller between holding; The position feedback end of Six-phase Induction Motor is connected with the CAP of DSP main controller end.
Wherein, above-mentioned power-switching circuit, comprise the rectification circuit be electrically connected to city, first inverter circuit and second inverter circuit of parallel join between rectification circuit and Six-phase Induction Motor, and be connected to the filter capacitor between rectification circuit and corresponding inverter circuit; The first output of isolation module and the second output, be connected with the control end of the second inverter circuit with the control end of the first inverter circuit respectively; The protection end of the first inverter circuit is connected with the PDPINT of DSP main controller end, and the protection end of the second inverter is connected with the PDPINT of DSP main controller end; 3 outputs of the first inverter circuit are connected with a, the b of Six-phase Induction Motor, the input of c three-phase, 3 outputs of the second inverter are connected with d, the e of Six-phase Induction Motor, the input of f three-phase, 6 common ports of the first inverter circuit and the second inverter circuit and Six-phase Induction Motor, be connected to respectively 6 inputs of electric current, voltage detection module.
Here, rectification circuit, comprise the uncontrollable rectifier bridge consisted of first to fourth diode D1-D4; The first inverter circuit or the second inverter circuit, comprise intelligent power module; Six-phase Induction Motor, comprise double three-phase machine; The DSP main controller, comprise the first task manager EVA and second event manager EVB.
The Six-phase Induction Motor controller based on DSP of above-described embodiment, operation principle is as follows:
Outside power frequency supply is converted to DC power supply, and then is converted to by corresponding inversion control means the controlled AC power that we need.Therefore, whole circuit adopts the power-switching circuit of AC-DC-AC.Rectification circuit adopts uncontrollable rectifier bridge, and the inverter bridge in Intelligent Power Module (as IPM) is the controlled object of the whole Six-phase Induction Motor controller based on DSP, and its control precision and reliability directly have influence on the design performance of whole system.Because being that double three-phase machine is Six-phase Induction Motor, Converting Unit can be controlled a, b, c as a three-phase, and d, e, f control as the another one three-phase.Referring to Fig. 1, inversion device (as inverter circuit) adopts Intelligent Power Module (as IPM), for preventing from DC side having high order harmonic component, adds that before the P of IPM, N direct current pressure side a large capacitor C 1 carries out filtering.
The DSP main controller has two task managers (EVA, EVB), and the full comparing unit of each task manager just can send 6 pwm signals, can drive 3 bridge arm modules.Two task managers just can be controlled 12 PWM signals that Six-phase Induction Motor needs, a, the b of the EVA drive motors of DSP main controller, c phase, and EVB is d, e, the f phase of drive motors.Intelligent Power Module (as IPM) arrives fault after testing, and as overcurrent, excess temperature etc., now the PDPINT pin of DSP main controller is set to low level, and the PWM pin is set to high-impedance state, blocks PWM output.
In sum, the Six-phase Induction Motor controller based on DSP of the utility model the various embodiments described above, because DSP has the high-speed computation ability, control performance reaches higher sampling precision in real time, make more current advanced control strategies, get a desired effect as vector control or direct torque control are used on Six-phase Induction Motor, reduced the harmonic current on rotor harmonic loss and DC bus, reduce torque pulsation.Be applied in propulsion system and electric car propulsion system, strengthened the reliability of motor and superior electromagnetic torque characteristic.
Finally it should be noted that: the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although with reference to previous embodiment, the utility model is had been described in detail, for a person skilled in the art, its technical scheme that still can put down in writing aforementioned each embodiment is modified, or part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (7)
1. the Six-phase Induction Motor controller based on DSP, it is characterized in that, comprise for realizing the power-switching circuit of AC-DC-AC conversion, the DSP main controller and the Six-phase Induction Motor that with described power-switching circuit, are connected respectively, be connected to the PWM end of described DSP main controller and the driving isolation module between power-switching circuit, and electric current, the voltage detection module of the ADC that is connected to described Six-phase Induction Motor and DSP main controller between holding; The position feedback end of described Six-phase Induction Motor is connected with the CAP of DSP main controller end.
2. the Six-phase Induction Motor controller based on DSP according to claim 1, it is characterized in that, described power-switching circuit, comprise the rectification circuit be electrically connected to city, and first inverter circuit and second inverter circuit of parallel join between described rectification circuit and Six-phase Induction Motor; The first output of described isolation module and the second output, be connected with the control end of the second inverter circuit with the control end of the first inverter circuit respectively; The protection end of described the first inverter circuit is connected with the PDPINT of DSP main controller end, and the protection end of the second inverter is connected with the PDPINT of DSP main controller end;
3 outputs of described the first inverter circuit are connected with a, the b of Six-phase Induction Motor, the input of c three-phase, 3 outputs of the second inverter are connected with d, the e of Six-phase Induction Motor, the input of f three-phase, 6 common ports of the first inverter circuit and the second inverter circuit and Six-phase Induction Motor, be connected to respectively 6 inputs of electric current, voltage detection module.
3. the Six-phase Induction Motor controller based on DSP according to claim 2, is characterized in that, described power-switching circuit also comprises the filter capacitor be connected between rectification circuit and corresponding inverter circuit.
4. according to the described Six-phase Induction Motor controller based on DSP of claim 2 or 3, it is characterized in that described rectification circuit comprises the uncontrollable rectifier bridge consisted of first to fourth diode D1-D4.
5. according to the described Six-phase Induction Motor controller based on DSP of claim 2 or 3, it is characterized in that, described the first inverter circuit or the second inverter circuit, comprise intelligent power module.
6. according to the described Six-phase Induction Motor controller based on DSP of claim 2 or 3, it is characterized in that, described Six-phase Induction Motor, comprise double three-phase machine.
7. according to the described Six-phase Induction Motor controller based on DSP of claim 2 or 3, it is characterized in that, described DSP main controller, comprise the first task manager EVA and second event manager EVB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203706830U CN203326944U (en) | 2013-06-26 | 2013-06-26 | DSP-based six-phase induction motor controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203706830U CN203326944U (en) | 2013-06-26 | 2013-06-26 | DSP-based six-phase induction motor controller |
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| CN203326944U true CN203326944U (en) | 2013-12-04 |
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| CN2013203706830U Expired - Fee Related CN203326944U (en) | 2013-06-26 | 2013-06-26 | DSP-based six-phase induction motor controller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234901A (en) * | 2020-11-18 | 2021-01-15 | 沈阳工业大学 | Direct torque control system for open-phase compensation of six-phase motor |
| CN113696737A (en) * | 2021-08-31 | 2021-11-26 | 东风汽车集团股份有限公司 | Driving motor assembly and motor control module and control equipment thereof |
-
2013
- 2013-06-26 CN CN2013203706830U patent/CN203326944U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234901A (en) * | 2020-11-18 | 2021-01-15 | 沈阳工业大学 | Direct torque control system for open-phase compensation of six-phase motor |
| CN113696737A (en) * | 2021-08-31 | 2021-11-26 | 东风汽车集团股份有限公司 | Driving motor assembly and motor control module and control equipment thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20180626 |