CN102830651A - Electric transmission system and control method thereof - Google Patents
Electric transmission system and control method thereof Download PDFInfo
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- CN102830651A CN102830651A CN2012103299158A CN201210329915A CN102830651A CN 102830651 A CN102830651 A CN 102830651A CN 2012103299158 A CN2012103299158 A CN 2012103299158A CN 201210329915 A CN201210329915 A CN 201210329915A CN 102830651 A CN102830651 A CN 102830651A
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Abstract
The invention discloses an electric transmission system. The electric transmission system comprises a master control board and a power unit, wherein the unit power comprises a sub control board and a sub control driving board which is connected with the sub control board, the sub control board is connected with the master control board, and the master control board is used for controlling the sub control board. The invention also provides a corresponding control method, an electric transmission capacity expansion system and a control method of the electric transmission capacity expansion system. According to the electric transmission system and the control method, disclosed by the invention, the system structure in master control and unit sub control is adopted, the collection of a bus voltage signal, an input/output phase signal and the like is finished by the power unit, the unused placing of a functional circuit module is avoided, and the problems such as intricate circuit, difficult maintenance, inconvenient wiring and interference hidden danger brought by collecting an over-current detection signal and the like by an adapter board in the prior art are overcome; and in addition, the flexibility of the system configuration is enhanced, the parallel operation and the capacity expansion in larger power are easy, and the requirement on large-power transmission can be met.
Description
Technical field
The present invention relates to the Electrified Transmission field, relate in particular to electric drive system and control method thereof.
Background technology
As everyone knows; The independent electric drive system that frequency converter exists as a kind of unit; Unit frequency converter is merely able to satisfy the moving application demand of patrilineal line of descent with only one son in each generation of middle low power grade in the ordinary course of things; And the application demand of or many transmissions moving for the patrilineal line of descent with only one son in each generation of high-power grade, a unit frequency converter can not satisfy, and often need could satisfy through the combination collaborative work of a plurality of unit frequency converters.For example, move system applies, need the transducer power unit of a plurality of suitable power grades is carried out the parallel operation dilatation, to satisfy application requirements in order to realize a kind of powerful patrilineal line of descent with only one son in each generation.
In order to realize the parallel operation dilatation; Usually the control panel on the original unit frequency converter is removed; The control panel of all unit frequency converters of control is set, and this control panel is connected with the driving interface of each unit frequency converter through a card extender, realizes that the tree-shaped veneer that a control is driven more connects framework.The Electrified Transmission kinematic train of the tree-shaped veneer connection framework that drives based on a control comprises more: a control panel, card extender, several fibre optic plates and several power cells; Control panel connects card extender; Card extender connects fibre optic plate, and each fibre optic plate connects the driving interface of corresponding power cell.In addition; Card extender also is provided with various functional interfaces; Be used for the control panel control signals transmitted is being carried out transfer, distribution; And signals such as electric current, temperature, fault are synthesized, and be transferred to control panel, so just having formed the tree-shaped veneer connection framework that a control of the prior art drives more is to be core with the card extender.
Though it is core with the card extender that the tree-shaped veneer that a this control is driven more connects framework, can realize the parallel operation dilatation, exists some drawbacks.For example, the position each other of each power cell is far away relatively usually in the high-power transmission application, and this causes very big inconvenience to the wiring that card extender carries out various input, and signal cable is staggered complicated, not only difficult in maintenance, and brings unknown interference easily.Moreover; The application demand of high-power transmission is changing all the time, for more high-power dilatation or more complicated application, controls the restriction of comparatively simplification owing to receiving card extender hardware and control panel; Strain flexibly is unfavorable for the large-scale promotion application on market of product.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of electric drive system, and it is the system architecture that master control adds the control of power cell; Under this framework; Accomplish the collection of signals such as busbar voltage, input and output phase place by power cell, avoid the idle of functional circuit module, and having eliminated card extender of the prior art, need to gather the circuit that signal such as over-current detection brings intricate; Difficult in maintenance, problems such as wiring is inconvenient, interference hidden danger; In addition, the embodiment of the invention has also strengthened the dirigibility of system configuration, is easy to more powerful parallel operation dilatation.
A kind of electric drive system comprises master control board and power cell, and said power cell comprises sub-control panel and the sub-drive plate that is connected with said sub-control panel, and said sub-control panel connects said master control board, and said master control board is used to control said sub-control panel.
Preferably, said master control board comprises first digital signal processor and first PLD, and said first digital signal processor links to each other with said first PLD, and said first PLD also connects said sub-control panel;
Wherein, Said first digital signal processor is provided with the first analog to digital conversion interface, first Serial Peripheral Interface, second Serial Peripheral Interface, the 3rd Serial Peripheral Interface, first parallel interface and second parallel interface; The said first analog to digital conversion interface connects the output terminal of input phase testing circuit; Said first Serial Peripheral Interface connects the output terminal of motor temperature testing circuit; Said second Serial Peripheral Interface connects the output terminal of pulse producer signal deteching circuit; Said the 3rd Serial Peripheral Interface linkage function expansion interface circuit, said first parallel interface connects the communication expansion interface circuit, and said second parallel interface is connected with the 3rd parallel interface communication of said first PLD.
Preferably, said sub-control panel comprises second digital signal processor and second PLD, and said second digital signal processor links to each other with said second PLD, and said second PLD also connects said sub-drive plate;
Wherein, Said second digital signal processor is provided with the second analog to digital conversion interface, the output terminal of said second analog to digital conversion interface difference connection bus voltage detecting circuit, the output terminal of output current detection circuit, the output terminal of rotating speed trace detection circuit, the output terminal of power device temperature sensing circuit;
Said second digital signal processor also is provided with the fault interrupting interface; First output terminal of said fault interrupting interface connection hardware failure detector circuit; Said second PLD is provided with fault interrupting and detects IO interface, and said fault interrupting detects second output terminal that IO interface connects said hardware failure detection circuit.
Preferably, said second PLD also is provided with the pulse width modulating signal output interface, and said pulse width modulating signal output interface connects the input end of said sub-drive plate, with to said sub-drive plate output pulse width modulated drive signal.
Preferably, said second PLD also is provided with optical fiber difference IO interface, and said optical fiber difference IO interface is connected with the first PLD communication of said master control board.
A kind of control method of electric drive system comprises: master control board receives the data message of the sub-control panel transmission of the power cell that is connected with said master control board;
Said master control board is according to the data message that receives, to the sub-control panel transmission control signal corresponding of said power cell, to control the sub-drive plate of said power cell.
Preferably, the said master control board step of data message that receives the sub-control panel transmission of the power cell that is connected with said master control board specifically comprises: the data message that the sub-control panel of several power cells that said master control board reception is connected with said master control board transmits;
Said master control board is according to the data message that receives; The step of sending control signal corresponding to the sub-control panel of said power cell specifically comprises: the data message that the sub-control panel of several power cells that said master control board will receive transmits compares and synthesizes; According to comparing and synthetic result; Sub-control panel to each power cell sends control signal corresponding, to control the sub-drive plate of said each power cell respectively.
Preferably; Said master control board is according to the data message that receives; The step of sending control signal corresponding to the sub-control panel of said power cell specifically also comprises: said master control board is analyzed the data message that receives and is also judged whether said data message is normal; If said data message is unusual, then said master control board is quoted fault and is sent locking signal to the sub-control panel of the power cell that sends said data message, to block the driving to the power cell that sends said data message.
A kind of Electrified Transmission capacity-enlarging system; Comprise first electric drive system and second electric drive system; Said first electric drive system and said second electric drive system are above-mentioned any described electric drive system; The master control board of said first electric drive system connects the master control board of said second electric drive system, and the master control board of said first electric drive system is used to control the master control board of said second electric drive system.
A kind of control method of Electrified Transmission capacity-enlarging system is applied to it is characterized in that: comprising in the above-mentioned Electrified Transmission capacity-enlarging system:
The master control board of first electric drive system receives the data message of the power cell transmission of data message that the master control board of second electric drive system sends and said first electric drive system;
The data message that the master control board of the data message of the power cell transmission of first electric drive system that the master control board of first electric drive system will receive and second electric drive system of reception is sent compares analysis; And the task of distributing said first electric drive system and said second electric drive system according to the comparative analysis result, to realize the collaborative work of said first electric drive system and said second electric drive system.
Can find out from above technical scheme; Power cell in a kind of electric drive system of the present invention is provided with sub-control panel; Can accomplish the collection of signals such as busbar voltage, input and output phase place, avoid functional circuit module idle phenomenon to occur, and in same power cell; Testing circuit can connect the sub-control panel in the power cell; Connect master control board by sub-control panel again, can avoid the direct connection detection circuit of master control board to obtain data message like this, thereby make that the master control board wiring is simple, maintenance is got rid of signal easily, basically and disturbed hidden danger.In addition,, handle, transmit control signal to each power cell again, thereby realize each power cell is carried out drive arrangements by master control board because the data message of each power cell all is transferred to master control board.When an electric drive system can not satisfy requiring of high-power transmission; Its master control board can connect the master control board of another one electric drive system; Thereby can receive the data message of another one electric drive system, thereby manage the data message of two systems as a whole, to realize two electric drive systems of a master control board control; Thereby capacity-enlarging system satisfies the requirement of high-power transmission.Therefore, electric transmission system dilatation of the present invention is simple, can satisfy the requirement of high-power transmission.
Description of drawings
1 one kinds of electric drive system structural representations of Fig. 1 embodiment of the invention;
2 one kinds of electric drive system structural representations of Fig. 2 embodiment of the invention;
3 one kinds of electric drive system control methods of Fig. 3 embodiment of the invention schematic flow sheet;
4 one kinds of electric drive system control methods of Fig. 4 embodiment of the invention schematic flow sheet;
5 one kinds of Electrified Transmission capacity-enlarging systems of Fig. 5 embodiment of the invention structural representation;
6 one kinds of Electrified Transmission capacity-enlarging systems of Fig. 6 embodiment of the invention control method schematic flow sheet.
Embodiment
Embodiment 1
As shown in Figure 1; The embodiment of the invention provides a kind of electric drive system; Comprise master control board 101 and power cell 102; Said power cell 102 comprises sub-control panel 103 and the sub-drive plate 104 that is connected with said sub-control panel 103, and said sub-control panel 103 connects said master control board 101, and said master control board 101 is used to control said sub-control panel 103.
Said master control board 101 can be passed through the detection data message of the power cell 102 of said sub-control panel 103 transmission of reception, and the detection data message according to receiving transmits control signal to said sub-control panel 103, to realize the control to said sub-control panel 103.Sub-control panel 103 can receive the control signal of master control board 101; And generation drive signal; Drive signal is transferred to sub-drive plate 104; By sub-drive plate 104 output concrete operations signals, like fan output signal, buffering adhesive signal, brake signal and insulated gate bipolar transistor (IGBT, Insulated Gate Bipolar Transistor) drive signal.Master control board 101 can adopt optical fiber to be connected with circuit between the sub-control panel 103, and wiring is simple.
Embodiment 2
As shown in Figure 2, the embodiment of the invention provides another kind of electric drive system, comprises the master control board 201 and first power cell 202.Said first power cell 202 comprises sub-control panel 204 and the sub-drive plate 203 that is connected with said sub-control panel 204, and said sub-control panel 204 connects said master control board 201, and said master control board 201 is used to control said sub-control panel 204.
Said master control board 201 comprises first digital signal processor 206 and first PLD 205; Said first digital signal processor 206 links to each other with said first PLD 205, and said first PLD 205 connects said sub-control panel 204.
Said first digital signal processor 206 is provided with the first analog to digital conversion (ADC; Analog-to-Digtal Converter) interface 212, the first serial peripheral equipment (SPI; Serial Peripheral Interface) interface 213, second Serial Peripheral Interface 214, the 3rd Serial Peripheral Interface 216, first parallel interface 215 and second parallel interface 227; Wherein, Serial Peripheral Interface generally abbreviates Serial Peripheral Interface (SPI) as, and is as shown in Figure 2.The said first analog to digital conversion interface 212 connects the output terminal of input phase testing circuits 207, with the sampling input line voltage and calculate input phase.Said first Serial Peripheral Interface 213 connects the output terminal of motor temperature testing circuit 208, to obtain the motor temperature data of sampling.Said second Serial Peripheral Interface 214 connects the output terminal of pulse producer (PG, Pulse Generator) signal deteching circuit 209, to obtain the PG signal, to comprise the transducing signal that obtains rotary transformer.Said the 3rd Serial Peripheral Interface 216 linkage function expansion interface circuits 211 are realized the outside expansion of multiple terminal logic function.Said first parallel interface 215 connects communication expansion interface circuit 210, realizes multiple communication expansion such as Ethernet, controller local area network (CAN, Controller Area Network) and Process FieldbusROFIBUS (PROFIBUS).Said first PLD 205 is provided with the 3rd parallel interface 228; Said second parallel interface 227 is connected with the 3rd parallel interface 228 communications of said first PLD 205; Optional, said second parallel interface 227 is connected through Double Port Random Memory (RAM) communication with said the 3rd parallel interface 228.
Said first PLD 205 also is provided with several unit optical fiber difference I/O (I/O) interfaces, comprises first module optical fiber difference I/O interface 229, the second unit optical fiber difference I/O interface 230, the 3rd unit optical fiber difference I/O interface 231, the 4th unit optical fiber difference I/O interface 232, master-slave unit optical fiber difference I/O interface 233.Said first module optical fiber difference I/O interface 229 connects the optical fiber difference I/O interface 234 of said sub-control panel 204, realizes the data transmission of master control board 201 and said first power cell 202.Said master control board 201 can also connect second power cell through the said second unit optical fiber difference I/O interface 230; Connect the 3rd power cell through said the 3rd unit optical fiber difference I/O interface 231; Connect the 3rd power cell through said the 4th unit optical fiber difference I/O interface 232, thus the data transmission of realization and a plurality of power cells.Said master-slave unit optical fiber difference I/O interface 233 can connect another master control board, makes said master control board 201 be connected with another master control board, realizes System Expansion.It is pointed out that said second power cell, said the 3rd power cell are identical with the structure of said first power cell with said the 4th power cell, is the power cell that has sub-control panel all.
Said sub-control panel 204 in said first power cell 202 comprises second digital signal processor 217 and second PLD 218; Second digital signal processor 217 links to each other with second PLD 218, and said second PLD 218 connects said sub-drive plate 203.
Said second digital signal processor 217 is provided with the second analog to digital conversion interface 219, the output terminal of the said second analog to digital conversion interface, 219 difference connection bus voltage detecting circuits 220, the output terminal of output current detection circuit 221, the output terminal of rotating speed trace detection circuit 222, the output terminal of power device temperature sensing circuit 223.Therefore, said second digital signal processor 217 can be used for the crucial analog quantity of detection system, like the parameters such as temperature of busbar voltage, output three-phase current, output phase, power device.
Said second digital signal processor 217 also is provided with fault interrupting interface 224, first output terminal of said fault interrupting interface 224 connection hardware failure detector circuits 225.Said second PLD 218 is provided with fault interrupting and detects IO interface 226, and said fault interrupting detects second output terminal of IO interface 226 connection hardware failure detector circuits 225.For example; Hardware failure detection circuit 225 can directly transfer to second digital signal processor 217 and second PLD 218 with the collector of hardware overcurrent, IGBT and the fault-signals such as voltage Vce between the emitter, to guarantee the timely response of first power cell 202 self to fault.
Said second PLD 218 is provided with pulse-length modulation (PWM; Pulse Width Modulation) signal output interface 235; Said pwm signal output interface 235 connects the input end of said sub-drive plate 203, to said sub-drive plate 203 output PWM drive signals.Need to prove that the PWM drive signal is to generate after the master control fiber-optic signal of 218 pairs of master control boards of second PLD, 201 transmission is decoded, and is transferred to said sub-drive plate 203 through pwm signal output interface 235.A ripple of a PWM drive signal will experience from sub-control panel (being called for short the son control) 204 and sample master control board (abbreviation master control) 201 receptions, is modulated to the process of sub-control panel decoding output again from master control board calculating.Because the signal chains of the high speed between master control board and the sub-control panel designs, and then guaranteed the high concentration and the high-speed transfer of information, particularly the ADVANCED APPLICATIONS to product is a powerful support.
Said second PLD 218 also is provided with optical fiber difference I/O interface 234, and said optical fiber difference I/O interface 234 is connected with first PLD, 205 communications of said master control board 201.
Said sub-control panel 204 is connected with said master control board 201 through optical fiber, and said first PLD 205 and second PLD 218 can carry out encoding and decoding to signal, receives and send fiber-optic signal.
Carrying out dual port RAM through the parallel port between said second PLD 218 and said second digital signal processor 217 is connected.Said second digital signal processor 217 sends sampled data to said second PLD 218; And send said first PLD 205 to through optical fiber, finally calculate the situation of assessment power cells by said first digital signal processor 206.
Further; Master control board 201 can connect the sub-control panel of a plurality of power cells such as second power cell, the 3rd power cell and the 4th power cell through optical fiber; The testing circuit of the sub-control panel of each power cell through being connected with second digital signal processor 217; Gather all detection data messages of power cell separately; Comprise that output current, busbar voltage, overcurrent, fault, rotating speed tracking etc. detect data message, and the detection data message that will gather is given master control board 201 through Optical Fiber Transmission behind the PLD coding.First PLD 205 of master control board 201 receives and detects data message, and decodes, and is handled by first digital signal processor 206 again.Concrete, the detection data message of 201 pairs of each sub-control panel collections of master control board compares and synthesizes, and detects data message and comprises data such as electric current, voltage, temperature, fault, according to comparing and synthetic result, electric drive system is controlled.This process can be carried out the algorithm computing by first digital signal processor 206 and formed control signal, and through first PLD, 205 codings, the control signal after each power cell sends coding.Each sub-control panel is after receiving control signal; Send drive signal to each sub-drive plate; So that sub-drive plate output concrete operations signal, like fan output signal, buffering adhesive signal, brake signal and IGBT drive signal, to realize the collaborative work of each power cell.Because each collection that detects data message is to be accomplished by the sub-control panel of each power cell; Give master control board 201 by sub-control panel through Optical Fiber Transmission again; Gather and need not by master control board 201 some to be detected data, avoided the numerous and diverse of circuit connection, wiring is simple; And be easy to safeguard, reduced the interference between circuit.
Further, master control board 201 can connect another master control boards through master-slave unit optical fiber difference I/O interface 233, with another master control board as from control panel, and then realization System Expansion.
Embodiment 3
The control method of a kind of electric drive system of present embodiment is applied in embodiment 1 or the 2 described electric drive systems.
As shown in Figure 3, a kind of control method of electric drive system comprises:
301, master control board receives the data message of the sub-control panel transmission of the power cell that is connected with said master control board.
In this embodiment, sub-control panel is gathered detecting data through each testing circuit that is connected in said sub-control panel.Said detection data can comprise: output current, busbar voltage, overcurrent, fault, rotating speed tracking etc. detect data.Said data message can be for detecting data.When master control borad linked to each other with several power cells, step 301 specifically also comprised: said master control board receives the data message of the sub-control panel transmission of several power cells that are connected with said master control board.
302, said master control board is according to the data message that receives, to the sub-control panel transmission control signal corresponding of said power cell, to control the sub-drive plate of said power cell.
In this embodiment; Step 302 specifically also comprises: said master control board is analyzed the data message that receives and is judged whether said data message is normal; If said data message is unusual; Then said master control board is quoted fault and is sent locking signal to the sub-control panel of the power cell that sends said data message, to block the driving to the power cell that sends said data message.
Embodiment 4
As shown in Figure 5, a kind of control method of electric drive system is applied to the electric drive system that master control borad links to each other with several power cells, and said control method comprises:
401, said master control board receives the data message of the sub-control panel transmission of several power cells that are connected with said master control board.
402, the data message of the sub-control panel transmission of said master control board several power cells that will receive compares and synthesizes; According to comparing and synthetic result; Sub-control panel to said each power cell sends control signal corresponding, to control the sub-drive plate of said each power cell respectively.
Optional; The data message that receives is analyzed in said master control board; And judge whether said data message is normal; If said data message is unusual, then said master control board is quoted fault and is sent locking signal to the sub-control panel of the power cell that sends said data message, to block the driving to the power cell that sends said data message.Therefore, the present embodiment method can in time detect the power cell that unusual condition occurs, and the accident that prevents takes place.
In the present embodiment method, data message can be for detecting data.Said master control board receives the detection data of the sub-control panel transmission of a plurality of power cells; The detection data of each power cell of receiving are compared and synthesize; According to comparing and synthetic result; Manage each power cell as a whole, send control signal corresponding to each power cell, so that the better collaborative work of each power cell.When said electric drive system can not satisfy requiring of high-power transmission, can be through increasing power cell, to realize dilatation.In the ordinary course of things, electric drive system can connect four power cells, can satisfy high-power transmission requirement.
Embodiment 5
Embodiment 1 or 2 described electric drive systems are carried out dilatation, and to satisfy more powerful transmission requirement, present embodiment provides a kind of Electrified Transmission capacity-enlarging system.
As shown in Figure 5; A kind of Electrified Transmission capacity-enlarging system; Comprise first electric drive system 501 and second electric drive system 502, said first electric drive system 501 is like embodiment 1 or embodiment 2 described electric drive systems with said second electric drive system 502.The master control board of said first electric drive system 501 is first master control board 503; The master control board of said second electric drive system 502 is second master control board 504; Said first master control board 503 connects second master control board 504, and said first master control board 503 is used to control said second master control board 504.
A kind of Electrified Transmission capacity-enlarging system of present embodiment connects to form like embodiment 1 or embodiment 2 described electric drive systems by two at least.Said second master control board 504 is given said first master control board 503 with the detection data transmission of second electric drive system 502; Said first master control board 503 compares the data message of the data message of first electric drive system 501 and second electric drive system 502 and synthesizes, according to relatively and synthetic result transmit control signal to the power cell of said second master control board 504 and said first electric drive system 501.Therefore, first electric drive system 501 and second electric drive system 502 are master slave systems, second electric drive system 502 be first electric drive system 501 from system.
When the capacity of two electric drive systems is still not enough, can also carry out dilatation again.Said Electrified Transmission capacity-enlarging system can also comprise the 3rd electric drive system, and said the 3rd electric drive system also is like embodiment 1 or embodiment 2 described electric drive systems.The master control board of said the 3rd electric drive system connects said second master control board 504, and transmits the detection data of said the 3rd electric drive system to said second master control board 504.Said second electric drive system receives the detection data of said the 3rd electric drive system, and manages the detection data of second electric drive system 502 and the detection data of the 3rd electric drive system as a whole, and forms the detection data after synthesizing.Detection data transmission after said second master control board 504 will be synthesized is given said first master control board 503; So that the detection data that said first master control board 503 can be managed first electric drive system 501 as a whole with synthetic after the detection data; Promptly compare and synthesize; Transmit control signal to second electric drive system 502 according to the result who compares and synthesize; This control signal can comprise the information of distributing to the amount of work that second electric drive system 502 and the 3rd electric drive system bear, and second electric drive system 502 distributes said amount of work between said second electric drive system 502 and the 3rd electric drive system.Therefore, second electric drive system 502 and the 3rd electric drive system are master slave systems.
Can find out that from above said first electric drive system 501 can pass through second electric drive system 502, realize management and control the 3rd electric drive system.Therefore, the dilatation way of a kind of Electrified Transmission capacity-enlarging system of the embodiment of the invention can be realized effective management and control of 501 pairs of whole capacity-enlarging systems of first electric drive system.
Need to prove that the 3rd electric drive system also can connect one from system,, just repeat no more here to realize the further dilatation of system.
Embodiment 6
As shown in Figure 6, a kind of control method of Electrified Transmission capacity-enlarging system is applied to comprise in the 5 described Electrified Transmission capacity-enlarging systems as implementing:
601, the master control board of first electric drive system receives the data message of the power cell transmission of data message that the master control board of the second Electrified Transmission capacity-enlarging system sends and said first electric drive system.
602, the data message of second kind of Electrified Transmission capacity-enlarging system of the data message of the power cell of the master control board of first electric drive system first electric drive system that will receive and reception compares analysis; And the task of distributing said first electric drive system and said second electric drive system according to the comparative analysis result, to realize the collaborative work of said first electric drive system and said second electric drive system.
Need to prove; For aforesaid each method embodiment, for simple description, so it all is expressed as a series of combination of actions; But those skilled in the art should know; The present invention does not receive the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in the instructions all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, do not have the part that details among certain embodiment, can be referring to the associated description of other embodiment.
In several embodiment that the application provided, should be understood that the apparatus and method that disclosed can realize through other mode.For example, device embodiment described above only is schematically, for example; The division of said unit; Only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or assembly can combine or can be integrated into another system; Or some characteristics can ignore, or do not carry out.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of the foregoing description is to instruct relevant hardware to accomplish through program; This program can be stored in the computer-readable recording medium, and storage medium can comprise: ROM, RAM, disk or CD etc.
More than electric drive system provided by the present invention and control method thereof have been carried out detailed introduction; For one of ordinary skill in the art; Thought according to the embodiment of the invention; The part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. electric drive system; It is characterized in that, comprise master control board and power cell, said power cell comprises sub-control panel and the sub-drive plate that is connected with said sub-control panel; Said sub-control panel connects said master control board, and said master control board is used to control said sub-control panel.
2. electric drive system according to claim 1; It is characterized in that; Said master control board comprises first digital signal processor and first PLD; Said first digital signal processor links to each other with said first PLD, and said first PLD also connects said sub-control panel;
Wherein, Said first digital signal processor is provided with the first analog to digital conversion interface, first Serial Peripheral Interface, second Serial Peripheral Interface, the 3rd Serial Peripheral Interface, first parallel interface and second parallel interface; The said first analog to digital conversion interface connects the output terminal of input phase testing circuit; Said first Serial Peripheral Interface connects the output terminal of motor temperature testing circuit; Said second Serial Peripheral Interface connects the output terminal of pulse producer signal deteching circuit; Said the 3rd Serial Peripheral Interface linkage function expansion interface circuit, said first parallel interface connects the communication expansion interface circuit, and said second parallel interface is connected with the 3rd parallel interface communication of said first PLD.
3. according to any described electric drive system of claim 1 to 2; It is characterized in that; Said sub-control panel comprises second digital signal processor and second PLD; Said second digital signal processor links to each other with said second PLD, and said second PLD also connects said sub-drive plate;
Wherein, Said second digital signal processor is provided with the second analog to digital conversion interface, the output terminal of said second analog to digital conversion interface difference connection bus voltage detecting circuit, the output terminal of output current detection circuit, the output terminal of rotating speed trace detection circuit, the output terminal of power device temperature sensing circuit;
Said second digital signal processor also is provided with the fault interrupting interface; First output terminal of said fault interrupting interface connection hardware failure detector circuit; Said second PLD is provided with fault interrupting and detects IO interface, and said fault interrupting detects second output terminal that IO interface connects said hardware failure detection circuit.
4. electric drive system according to claim 3; It is characterized in that; Said second PLD also is provided with the pulse width modulating signal output interface; Said pulse width modulating signal output interface connects the input end of said sub-drive plate, with to said sub-drive plate output pulse width modulated drive signal.
5. electric drive system according to claim 3; It is characterized in that; Said second PLD also is provided with optical fiber difference IO interface, and said optical fiber difference IO interface is connected with the first PLD communication of said master control board.
6. the control method of an electric drive system is characterized in that, comprising: master control board receives the data message of the sub-control panel transmission of the power cell that is connected with said master control board;
Said master control board is according to the data message that receives, to the sub-control panel transmission control signal corresponding of said power cell, to control the sub-drive plate of said power cell.
7. the control method of electric drive system according to claim 6 is characterized in that,
The step of the data message of the sub-control panel transmission of the power cell that said master control board reception is connected with said master control board specifically comprises: said master control board receives the data message of the sub-control panel transmission of several power cells that are connected with said master control board;
Said master control board is according to the data message that receives; The step of sending control signal corresponding to the sub-control panel of said power cell specifically comprises: the data message that the sub-control panel of several power cells that said master control board will receive transmits compares and synthesizes; According to comparing and synthetic result; Sub-control panel to each power cell sends control signal corresponding, to control the sub-drive plate of said each power cell respectively.
8. the control method of electric drive system according to claim 7; It is characterized in that; Said master control board is according to the data message that receives; The step of sending control signal corresponding to the sub-control panel of said power cell specifically also comprises: said master control board is analyzed the data message that receives and is also judged whether said data message is normal; If said data message is unusual, then said master control board is quoted fault and is sent locking signal to the sub-control panel of the power cell that sends said data message, to block the driving to the power cell that sends said data message.
9. Electrified Transmission capacity-enlarging system; It is characterized in that; Comprise first electric drive system and second electric drive system; Said first electric drive system and said second electric drive system are as weighing 1 to 5 any described electric drive system, and the master control board of said first electric drive system connects the master control board of said second electric drive system, and the master control board of said first electric drive system is used to control the master control board of said second electric drive system.
10. the control method of an Electrified Transmission capacity-enlarging system is applied to it is characterized in that: comprising in the Electrified Transmission capacity-enlarging system as claimed in claim 9:
The master control board of first electric drive system receives the data message of the power cell transmission of data message that the master control board of second electric drive system sends and said first electric drive system;
The data message that the master control board of the data message of the power cell transmission of first electric drive system that the master control board of first electric drive system will receive and second electric drive system of reception is sent compares analysis; And the task of distributing said first electric drive system and said second electric drive system according to the comparative analysis result, to realize the collaborative work of said first electric drive system and said second electric drive system.
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