CN103014229A - master-slave control method for converter tilting frequency conversion system - Google Patents
master-slave control method for converter tilting frequency conversion system Download PDFInfo
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- CN103014229A CN103014229A CN201210570772XA CN201210570772A CN103014229A CN 103014229 A CN103014229 A CN 103014229A CN 201210570772X A CN201210570772X A CN 201210570772XA CN 201210570772 A CN201210570772 A CN 201210570772A CN 103014229 A CN103014229 A CN 103014229A
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Abstract
The invention discloses a master-slave control method for a converter tilting frequency conversion system, which is used for controlling a frequency conversion system of a motor in a converter tilting system. According to the method, four AC asynchronous motors in the converter tilting system are respectively connected with a first frequency converter, a second frequency converter, a third frequency converter and a fourth frequency converter; the four frequency converters are Siemens S120-series frequency converters; The four frequency converters perform isochronal synchronous communication through SINAMICS Link network; one of the four frequency converters is used for main control, and at least one of the other frequency converters is used for slave control. The invention adopts Siemens S120-series frequency converters, performs communication through the SINAMICS Link isochronal synchronous network, and limits the communication delay to be within 3 ms. In addition, with the logical operation function of the S120-series frequency converter itself, the data can be collected and processed directly and accurately, which greatly improves the control precision.
Description
Technical field
The present invention relates to principal and subordinate's control of frequency transformer, refer to particularly a kind of master-slave control method for the converter inclining frequency conversion system.
Background technology
Converter tilting system is a topmost link in the converter steelmaking, in oxygen top and bottom combined blown converter steelmaking process, steadily fascinating and accurate location of body of heater directly has influence on converter hot metal charging, blowing, reinforced, tapping, deslagging, repaiies the quality that the series of process process such as stove is finished.The converter tilting system operation has low speed, heavy duty, rotating, frequently opens braking, intense impact, bears the characteristics such as larger dynamic load, working conditions be abominable.In addition, because converter tilting mechanism is to adopt integral four point toothing Flexible Transmissions, four drive-motor are connected with rigidity of gear reduction unit, therefore, must control well the synchronism that four drive-motor are exerted oneself, allow to increase the work-ing life of step-down gear, guarantee steadily fascinating of body of heater, so that steelmaking process is smooth.
Only there is limited free function block in the frequency transformer that existing converter tilting system adopts, is difficult to satisfy complicated steering logic needs, processes so give as much as possible PLC with the logic control part in converter inclining control.For frequency transformer, the logic control ability of PLC a little less than, can not satisfy the needs of complex communication and control.But along with the raising that process for making is required, converter tilting system needs higher response speed and control accuracy, and PLC carries out communication by DP bus and frequency transformer, no matter be that data transfer postpones on upper or the signal immunity from interference, all become its hard defects, can not effectively promote the overall performance of the Controlling System of fascinating.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art and a kind of master-slave control method for the converter inclining frequency conversion system is provided, this master-slave control method utilizes the logical operation function of frequency transformer self, can more accurate direct image data and processing data, greatly improve controllability.
Realize that the technical scheme that the object of the invention adopts is: a kind of master-slave control method for the converter inclining frequency conversion system comprises:
Four AC induction motors in the converter tilting system are connected respectively the first frequency transformer, the second frequency transformer, the 3rd frequency transformer and the 4th frequency transformer, described four frequency transformers are passed through network connection, carry out isochronous communication, as main control, other at least one frequency transformer is used as from control with a frequency transformer in described four frequency transformers;
Described the first frequency transformer comprises the first control unit and the first power cell, the second frequency transformer comprises the second control unit and the second power cell, the 3rd frequency transformer comprises the 3rd control unit and the 3rd power cell, the 4th frequency transformer comprises the 4th control unit and the 4th power cell, and the interface board on described the first control unit, the second control unit, the 3rd control unit and the 4th control unit is by composing in series described network.
The present invention is output or the torque of other main frames output of the speed regulator of self as selecting torque from the frequency transformer of control with functional block.
Owing to be to carry out isochronous communication by SINAMICS Link network between four frequency transformers, need to arrange the data communication format.Then, the mode by DCC programming realizes the logic in main frame and the every data synchronization process of slave, thereby so that real-time, stability and the reliability of the operation of turndown transmission system can both reach optimum.
The present invention adopts siemens S120 Series Frequency Converter, carries out communication by SINAMICS Link isochronous network, and communication delay is limited in the 3ms.In addition, utilize the logical operation function of S120 Series Frequency Converter self, can more accurate direct image data and processing data, greatly improved control accuracy.
Description of drawings
Fig. 1 is the structured flowchart that the present invention is used for the driving control system of converter inclining equipment;
Fig. 2 is the control flow chart of the first frequency transformer;
Fig. 3 is the control flow chart of the second frequency transformer;
Fig. 4 is the control flow chart of the 3rd frequency transformer;
Fig. 5 is the control flow chart of the 4th frequency transformer;
Fig. 6 is that control word bit0 starts synoptic diagram;
Fig. 7 is that control word bit3 starts synoptic diagram;
Fig. 8 controls the switching synoptic diagram for the principal and subordinate;
Fig. 9 is torque selection function piece connection diagram;
Figure 10 is band-type brake synchronizing function piece synoptic diagram
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
The present invention is used for the master-slave control method of converter inclining frequency conversion system, is that the frequency conversion system of motor in the converter tilting system is controlled, thereby makes the transmission system that is connected in motor have stable synchronism.
As shown in Figure 1, the converter inclining frequency-changing control system that the present invention relates to comprises the first AC induction motor 500 and connected the first frequency transformer 100, the second AC induction motor 600 and connected the second frequency transformer 200, the 3rd AC induction motor 700 and connected the 3rd frequency transformer 300, the 4th AC induction motor 800 and connected the 4th frequency transformer 400, the first frequency transformer 100 comprises the first control unit 101 and the first power cell 102, the second frequency transformer 200 comprises the second control unit 201 and the second power cell 202, the 3rd frequency transformer 300 comprises that the 3rd control unit 301 and the 3rd power cell 302, the four frequency transformers 400 comprise the 4th control unit 401 and the 4th power cell 402.CBE20 interface board on the first control unit 101 is connected with the CBE20 interface board of the second control unit 201 by DRIVE-CLiQ, the CBE20 interface board of the second control unit 201 is connected with the CBE20 interface board of the 3rd control unit 301 by DRIVE-CLiQ, the CBE20 interface board of the 3rd control unit 301 is connected with the CBE20 interface board of the 4th control unit 401 by DRIVE-CLiQ, and four control units compose in series SINAMICS Link isochronous network.SINAMICS Link communication modes is Siemens is used for realizing data exchange between the transmission mechanism slave station in SINAMICS transmission product a kind of communication modes, DRIVE-CLiQ is a kind of transmission interface, be used for the connection between S120 frequency transformer and the internal module, SINAMICS Link and DRIVE-CLiQ are state of the art, repeat no more herein.
The first AC induction motor 500 is provided with the first encoder 501, the first encoders 501 and disposes separately the first coder module 502, the first coder module 502 and be connected with the first power cell 102 by DRIVE-CLiQ.The second AC induction motor 600 is provided with the second encoder 601, the second encoders 601 and disposes separately the second coder module 602, the second coder module 602 and be connected with the second power cell 202 by DRIVE-CLiQ.The 3rd AC induction motor 700 is provided with the 3rd encoder 701, the three encoders 701 and disposes separately the 3rd coder module 702, the three coder module 702 and be connected with the 3rd power cell 302 by DRIVE-CLiQ.The 4th AC induction motor 800 is provided with the 4th encoder 801, the four encoders 801 independent configuration the 4th coder module 802, the four coder module 802 and is connected with the 4th power cell 402 by DRIVE-CLiQ.
In the present embodiment, the first frequency transformer 100, the second frequency transformer 200, the 3rd frequency transformer 300 and the three or four frequency transformer 400 are siemens S120 Series Frequency Converter, and wherein the first control unit 101, the second control unit 201, the 3rd control unit 301 and the 4th control unit 401 are CU320-2 DP control unit.The first power cell 102, the second power cell 202, the 3rd power cell 302 and the 4th power cell 402 are the PM340 power cell.The first coder module 502, the second coder module 602, the 3rd coder module 702, the 4th coder module 802 are the smc30 coder module.
The inventive method as main control, requires four frequency transformers to switch by device sequence in a frequency transformer in described four frequency transformers, when the first frequency transformer 100 as main control breaks down, switches to the second frequency transformer 200 and is main control; When the second frequency transformer 200 breaks down, switch to the 3rd frequency transformer 300 and be main control; At least guarantee that 2 frequency transformers move simultaneously, surpass 2 table apparatus faults, then tilting system stops.Therefore, the present invention requires in the transmission system four frequency transformers when can switching main frame, reach a master tape three from a, master tape two from or a master tape one from control mode.
Because the communication between four frequency transformers is by SINAMICS Link network, so the data communication form of synchronizing network is carried out definition such as following table 1:
Table 1
1# in table 1 and the accompanying drawing represents the first frequency transformer 100, and 2# represents the second frequency transformer 200, and 3# represents the 3rd frequency transformer 300, and 4# represents the 4th frequency transformer 400.
Table 1 data communication form scheme in the realization, needing tabulates to the expert parameter of every frequency converter control unit respectively arranges, and below is described in detail.
In order to confirm principal and subordinate's identity of 4 frequency transformers, need a kind of data layout of definition, can be so that frequency transformer be finished the function that the principal and subordinate controls by resolving.Be that binary one 110 expression 1# machines are main, 1101 expression 2# machines are main, and 1011 expression 3# machines are main.As shown in Figure 8, r8890.1, r8892.1, r8893.1 is the ready to run state of corresponding 1# machine, 2# machine, 3# machine respectively. Piece 13,20,21 output terminal are the principal and subordinate and select the position, respectively input I1, I2, the I3 of piece 2 in the interface chart 9.
For the SINAMICS Link network activation with control unit, the message format of communication need is satisfied in simultaneously definition, selecting parameter p 8815 that IF1 interface packets channel pattern is set by IF1/IF2 interface PZD function is profisafe, and IF2 interface packets channel pattern is isochronous; Select parameter p 8835 to be made as 3 in the CBE20 firmware, enable the SINAMICS Link network of CBE20 interface.
By SINAMICS Link station address parameter p 8836 the SINAMICS Link station address of four control units is set respectively, wherein,
Selecting parameter p 8815 that IF1 interface packets channel pattern is set by IF1/IF2 interface PZD function is profisafe, and IF2 interface packets channel pattern is isochronous;
By p8839 message passage IF1 is set, the hardware interface that IF2 is corresponding, IF1 interface definition standard message wherein, the IF2 interface can only define free message, namely define p8839[0] be control unit onboard (Profibus DP, be integrated in the DP interface on the control unit), p8839[1] be the option plate interface of COMM board(control unit);
P8870 is PZD message reception buffer zone numbering, and the p8870[0 of the second frequency transformer is set]=1, p8870[3]=2, p8870[4]=3, the p8870[0 of the 3rd frequency transformer]=1, p8870[1]=1, p8870[3]=2, p8870[4]=3, p8870[5]=2, p8870[6]=3, the p8870[0 of the 4th frequency transformer]=1, p8870[1]=1, p8870[2]=1, p8870[3]=2, p8870[4]=3, p8870[5]=2, p8870[6]=3, p8870[7]=2, p8870[8]=3;
P8871 is PZD message sending buffer numbering, and the p8871[0 of the first frequency transformer is set]=1, p8871[1]=2, p8871[2]=3, the p8871[0 of the second frequency transformer]=1, p8871[1]=2, p8871[2]=3, the p8871[0 of the 3rd frequency transformer]=1, p8871[1]=2, p8871[2]=3;
P8872 is the node address in PZD message reception buffer zone corresponding data source, and the p8872[0 of the second frequency transformer is set]=1, p8872[3]=1, p8872[4]=1, the p8872[0 of the 3rd frequency transformer is set]=1, p8872[1]=2, p8872[3]=1, p8872[4]=1, p8872[5]=2, p8872[6]=2, the p8872[0 of the 4th frequency transformer is set]=1, p8872[1]=2, p8872[2]=3, p8872[3]=1, p8872[4]=1, p8872[5]=2, p8872[6]=2, p8872[7]=3, p8872[8]=3.
The below illustrates respectively the control flow to every frequency transformer.
As shown in Figure 2, the first frequency transformer 100 is controlled according to following steps:
If the first frequency transformer 100 trouble free, and the second frequency transformer 200, the 3rd frequency transformer 300 and the 4th frequency transformer 400 do not have total failure, then described the first frequency transformer 100 is operated in speed ring, and buffer zone is put in the output torque of the first frequency transformer speed pi regulator and status word;
The first frequency transformer 100 reception PLC control words are finished and are started or stoped.
As shown in Figure 3, the second frequency transformer 200 is controlled according to following steps:
If the second frequency transformer 200 trouble free, the first frequency transformer 100 trouble free, then the second frequency transformer 200 is operated in the torque ring, the output torque of the first frequency transformer 100 is inputted as the torque of the second frequency transformer 200, the band-type brake signal of the first frequency transformer 100 is exported as the second frequency transformer 200 band-type brakes, the output torque of speed pi regulator and the status word of the second frequency transformer 200 are put into buffer zone, and the second frequency transformer 200 reception PLC control words are finished and are started or stoped;
If the second frequency transformer 200 trouble free, the first frequency transformer 100 has fault, and the 3rd frequency transformer 300 and the 4th frequency transformer 400 do not have total failure, then the second frequency transformer 200 is operated in speed ring, the band-type brake signal of the second frequency transformer 200 is exported as the second frequency transformer 200 band-type brakes, the output torque of speed pi regulator and the status word of the second frequency transformer 200 are put into buffer zone; The second frequency transformer 200 reception PLC control words are finished and are started or stoped.
As shown in Figure 4, the 3rd frequency transformer 300 is controlled according to following steps:
If the 3rd frequency transformer 300 trouble free, the first frequency transformer 100 trouble free, then the 3rd frequency transformer 300 is operated in the torque ring, the output torque of the first frequency transformer 100 is inputted as the torque of the 3rd frequency transformer 300, the band-type brake signal of the first frequency transformer 100 is exported as the 3rd frequency transformer 300 band-type brakes, the output torque of speed pi regulator and the status word of the 3rd frequency transformer 300 are put into buffer zone, and the 3rd frequency transformer 300 reception PLC control words are finished and are started or stoped;
If the 3rd frequency transformer 300 trouble free, the first frequency transformer 100 has fault, such as the second frequency transformer 200 trouble free, then the 3rd frequency transformer 300 is operated in the torque ring, the output torque of the second frequency transformer 200 is inputted as the torque of the 3rd frequency transformer 300, the band-type brake signal of the second frequency transformer 200 is exported as the 3rd frequency transformer 300 band-type brakes, the output torque of speed pi regulator and the status word of the 3rd frequency transformer 300 are put into buffer zone, the 3rd frequency transformer 300 reception PLC control words are finished and are started or stoped;
If the 3rd frequency transformer 300 trouble free, the first frequency transformer has fault, the second frequency transformer has fault, and the 4th frequency transformer 400 trouble free, then the 3rd frequency transformer 300 is operated in speed ring, the band-type brake signal of the 3rd frequency transformer 300 is exported as the 3rd frequency transformer 300 band-type brakes, the output torque of speed pi regulator and the status word of the 3rd frequency transformer 300 are put into buffer zone, the 3rd frequency transformer 300 reception PLC control words are finished and are started or stoped.
As shown in Figure 5, described the 4th frequency transformer 400 is controlled according to following steps:
If the 4th frequency transformer 400 trouble free, the first frequency transformer 100 trouble free, then the 4th frequency transformer 400 is operated in the torque ring, the output torque of the first frequency transformer 100 is inputted as the torque of the 4th frequency transformer 400, the band-type brake signal of the first frequency transformer 100 is exported as the 4th frequency transformer 400 band-type brakes, the 4th frequency transformer 400 status words are put into buffer zone; The 4th frequency transformer 400 reception PLC control words are finished and are started or stoped;
If the 4th frequency transformer 400 trouble free, the first frequency transformer 100 has fault, such as the second frequency transformer 200 trouble free, then the 4th frequency transformer 400 is operated in the torque ring, the output torque of the second frequency transformer 200 is inputted as the torque of the 4th frequency transformer 400, the band-type brake signal of the second frequency transformer 200 is exported as the 4th frequency transformer 400 band-type brakes, the 4th frequency transformer 400 status words are put into buffer zone; The 4th frequency transformer 400 reception PLC control words are finished and are started or stoped;
If the 4th frequency transformer 400 trouble free, the first frequency transformer 100 has fault, the second frequency transformer 200 has fault, and the 3rd frequency transformer 300 trouble free, then the 4th frequency transformer 400 is operated in the torque ring, the output torque of the 3rd frequency transformer 300 is inputted as the torque of the 4th frequency transformer, the band-type brake signal of the 3rd frequency transformer 300 is exported as the 4th frequency transformer 400 band-type brakes, the 4th frequency transformer 400 shape bodies are put into buffer zone; The 4th frequency transformer 400 reception PLC control words are finished and are started or stoped.
Because what converter tilting system adopted is alternating current machine, compares the direct drive mode, starting-up response speed is partially slow.But the toggle speed for converter, The faster the better in requirement on the technique, so main frame is from the control word that message passage if1 mouth reception PLC sends over, select the 3rd bit3(operation enable of control word) control start and stop, abandon traditional bit0(on/off1) the control start stop mode.Frequency transformer overcurrent and hypervelocity fault that the method not only can avoid the operative employee to use Zhuan Lu Oscillating handle frequent start-stop to cause can also be skipped the direct current pre-charge process, directly set up magnetizing current, and start time, saving was about 1s, as shown in Figure 6 and Figure 7.
In order to confirm principal and subordinate's identity of 4 frequency transformers, need a kind of data layout of definition, can be so that frequency transformer be finished the function that the principal and subordinate controls by resolving.Be that binary one 110 expressions the first frequency transformer 100 is main, 1101 expressions the second frequency transformer 200 is main, and 1011 expressions the 3rd frequency transformer 300 is main.As shown in Figure 8, r8890.1, r8892.1, the ready to run state of r8893.1 corresponding the first frequency transformer 100, the second frequency transformers 200 of difference and the 3rd frequency transformer 300. Piece 19,20,21 output terminal be input I1, I2, the I3 of contiguous block 2 respectively.
It is output or the torque of other main frames output of the speed regulator of self that slave can be selected torque with UX8 and B_W functional block.The B_W functional block meaning is Converter 16 binary variables to status word, position word coverter; The meaning of MUX8 functional block is Multiplexer, multiplexer, and this functional block is the functional blocks that provides in the S120 frequency transformer DCC programing function, can realize data selection logic.As shown in Figure 9, what B_W functional block input pin connected respectively is that the principal and subordinate selects front 3 of control word, and pin X3, the X5 of MUX8 functional block, X6 be corresponding outside torque respectively, is specially: the X6 of the second frequency transformer is connected the torque output of the first frequency transformer; The X6 of the 3rd frequency transformer is connected the torque output of the first frequency transformer, X5 is connected the torque output of the second frequency transformer; The X6 of the 4th frequency transformer is connected the torque output of the first frequency transformer, and the torque with X5 connects the second frequency transformer connects X3 the torque output of the 3rd frequency transformer.The band-type brake of 4 frequency transformers is all determined by main frame, adopts equally DCC to realize selecting logic, as shown in figure 10.BSW piece 5,6,7 is distinguished corresponding the first frequency transformer 100, the second frequency transformers 200 and the 3rd frequency transformers 300 among the figure, realizes simultaneously the function of switching value alternative.What their input I pin connected respectively is that the principal and subordinate selects the position, and the input I1 pin respectively corresponding frequency transformer of contiguous block is opened the band-type brake signal.Be master signal when receiving, namely the I pin is 0 o'clock, just can allow the band-type brake signal of self arrive last output by the functional block sequence delivery, directly connects the 24V band-type brake rly. of controlling to this device.So so that the switch band-type brake absolute synchronization of all devices, the phenomenon of nodding when effectively having avoided body of heater to start and stop also have been protected wheel casing and mechanical hatching gate simultaneously.
The present invention has utilized the frequency transformer SINAMICS Link of siemens S120 system network creation active data storage and communication format, the mode of programming by DCC simultaneously realizes the logic in main frame and the every data synchronization process of slave, thereby so that real-time, stability and the reliability of the operation of turndown transmission system can both reach optimum.
Claims (10)
1. master-slave control method that is used for the converter inclining frequency conversion system is characterized in that:
Four AC induction motors in the converter tilting system are connected respectively the first frequency transformer, the second frequency transformer, the 3rd frequency transformer and the 4th frequency transformer, described four frequency transformers are passed through network connection, carry out isochronous communication, as main control, other at least one frequency transformer is used as from control with a frequency transformer in described four frequency transformers;
Described the first frequency transformer comprises the first control unit and the first power cell, the second frequency transformer comprises the second control unit and the second power cell, the 3rd frequency transformer comprises the 3rd control unit and the 3rd power cell, the 4th frequency transformer comprises the 4th control unit and the 4th power cell, and the interface board on described the first control unit, the second control unit, the 3rd control unit and the 4th control unit is by composing in series described network.
2. described master-slave control method for the converter inclining frequency conversion system according to claim 1 is characterized in that as selecting torque from the frequency transformer of control with functional block be output or the torque of other main frames output of the speed regulator of self.
3. described master-slave control method for the converter inclining frequency conversion system according to claim 1 is characterized in that, described the first frequency transformer is controlled according to following steps:
If the first frequency transformer trouble free, and the second frequency transformer, the 3rd frequency transformer and the 4th frequency transformer do not have total failure, and then described the first frequency transformer is operated in speed ring, and buffer zone is put in the output torque of the first frequency transformer speed pi regulator and status word;
The first frequency transformer reception PLC control word is finished and is started or stoped.
4. described master-slave control method for the converter inclining frequency conversion system according to claim 1 is characterized in that, described the second frequency transformer is controlled according to following steps:
If the second frequency transformer trouble free, the first frequency transformer trouble free, then the second frequency transformer is operated in the torque ring, the output torque of the first frequency transformer is inputted as the torque of the second frequency transformer, the band-type brake signal of the first frequency transformer is exported as the second frequency transformer band-type brake, the output torque of speed pi regulator and the status word of the second frequency transformer are put into buffer zone, and the second frequency transformer reception PLC control word is finished and is started or stoped;
If the second frequency transformer trouble free, the first frequency transformer has fault, and the 3rd frequency transformer and the 4th frequency transformer do not have total failure, then the second frequency transformer is operated in speed ring, the band-type brake signal of the second frequency transformer is exported as the second frequency transformer band-type brake, the output torque of speed pi regulator and the status word of the second frequency transformer are put into buffer zone; The second frequency transformer reception PLC control word is finished and is started or stoped.
5. described master-slave control method for the converter inclining frequency conversion system according to claim 1 is characterized in that, described the 3rd frequency transformer is controlled according to following steps:
If the 3rd frequency transformer trouble free, the first frequency transformer trouble free, then the 3rd frequency transformer is operated in the torque ring, the output torque of the first frequency transformer is inputted as the torque of the 3rd frequency transformer, the band-type brake signal of the first frequency transformer is exported as the 3rd frequency transformer band-type brake, the output torque of speed pi regulator and the status word of the 3rd frequency transformer are put into buffer zone, and the 3rd frequency transformer reception PLC control word is finished and is started or stoped;
If the 3rd frequency transformer trouble free, the first frequency transformer has fault, such as the second frequency transformer trouble free, then the 3rd frequency transformer is operated in the torque ring, the output torque of the second frequency transformer is inputted as the torque of the 3rd frequency transformer, the band-type brake signal of the second frequency transformer is exported as the 3rd frequency transformer band-type brake, the output torque of speed pi regulator and the status word of the 3rd frequency transformer are put into buffer zone, the 3rd frequency transformer reception PLC control word is finished and is started or stoped;
If the 3rd frequency transformer trouble free, the first frequency transformer has fault, the second frequency transformer has fault, and the 4th frequency transformer trouble free, then the 3rd frequency transformer is operated in speed ring, the band-type brake signal of the 3rd frequency transformer is exported as the 3rd frequency transformer band-type brake, the output torque of speed pi regulator and the status word of the 3rd frequency transformer are put into buffer zone, the 3rd frequency transformer reception PLC control word is finished and is started or stoped.
6. described master-slave control method for the converter inclining frequency conversion system according to claim 1 is characterized in that, described the 4th frequency transformer is controlled according to following steps:
If the 4th frequency transformer trouble free, the first frequency transformer trouble free, then the 4th frequency transformer is operated in the torque ring, the output torque of the first frequency transformer is inputted as the torque of the 4th frequency transformer, the band-type brake signal of the first frequency transformer is exported as the 4th frequency transformer band-type brake, the 4th frequency transformer status word is put into buffer zone; The 4th frequency transformer reception PLC control word is finished and is started or stoped;
If the 4th frequency transformer trouble free, the first frequency transformer has fault, such as the second frequency transformer trouble free, then the 4th frequency transformer is operated in the torque ring, the output torque of the second frequency transformer is inputted as the torque of the 4th frequency transformer, the band-type brake signal of the second frequency transformer is exported as the 4th frequency transformer band-type brake, the 4th frequency transformer status word is put into buffer zone; The 4th frequency transformer reception PLC control word is finished and is started or stoped;
If the 4th frequency transformer trouble free, the first frequency transformer has fault, the second frequency transformer has fault, and the 3rd frequency transformer trouble free, then the 4th frequency transformer is operated in the torque ring, the output torque of the 3rd frequency transformer is inputted as the torque of the 4th frequency transformer, the band-type brake signal of the 3rd frequency transformer is exported as the 4th frequency transformer band-type brake, the 4th frequency transformer shape body is put into buffer zone; The 4th frequency transformer reception PLC control word is finished and is started or stoped.
7. described master-slave control method for the converter inclining frequency conversion system according to claim 1, it is characterized in that, described four frequency transformers are siemens S120 Series Frequency Converter, and described four frequency transformers by SINAMICS Link network connection, are carried out isochronous communication; CBE20 interface board on described the first control unit, the second control unit, the 3rd control unit and the 4th control unit composes in series SINAMICS Link network by DRIVE-CLIQ, the data communication form of described SINAMICS Link network carries out following setting: select parameter p 8835 to be made as 3 in the firmware of CBE20, enable the SINAMICS Link network of CBE20 interface.
8. described master-slave control method for the converter inclining frequency conversion system according to claim 7 is characterized in that:
By SINAMICS Link station address parameter p 8836 the SINAMICS Link station address of four control units is set respectively, wherein,
Selecting parameter p 8815 that IF1 interface packets channel pattern is set by IF1/IF2 interface PZD function is profisafe, and IF2 interface packets channel pattern is isochronous;
By p8839 message passage IF1 is set, the hardware interface that IF2 is corresponding, IF1 interface definition standard message wherein, the IF2 interface can only define free message, namely defines p8839[0] be control unit onboard, p8839[1] be COMM board;
P8870 is PZD message reception buffer zone numbering, and the p8870[0 of the second frequency transformer is set]=1, p8870[3]=2, p8870[4]=3, the p8870[0 of the 3rd frequency transformer]=1, p8870[1]=1, p8870[3]=2, p8870[4]=3, p8870[5]=2, p8870[6]=3, the p8870[0 of the 4th frequency transformer]=1, p8870[1]=1, p8870[2]=1, p8870[3]=2, p8870[4]=3, p8870[5]=2, p8870[6]=3, p8870[7]=2, p8870[8]=3;
P8871 is PZD message sending buffer numbering, and the p8871[0 of the first frequency transformer is set]=1, p8871[1]=2, p8871[2]=3, the p8871[0 of the second frequency transformer]=1, p8871[1]=2, p8871[2]=3, the p8871[0 of the 3rd frequency transformer]=1, p8871[1]=2, p8871[2]=3;
P8872 is the node address in PZD message reception buffer zone corresponding data source, and the p8872[0 of the second frequency transformer is set]=1, p8872[3]=1, p8872[4]=1, the p8872[0 of the 3rd frequency transformer is set]=1, p8872[1]=2, p8872[3]=1, p8872[4]=1, p8872[5]=2, p8872[6]=2, the p8872[0 of the 4th frequency transformer is set]=1, p8872[1]=2, p8872[2]=3, p8872[3]=1, p8872[4]=1, p8872[5]=2, p8872[6]=2, p8872[7]=3, p8872[8]=3.
9. described master-slave control method for the converter inclining frequency conversion system according to claim 8 is characterized in that:
The first control unit selects the 3rd bit3 of control word to control start and stop from the control word that message passage IF1 interface reception PLC sends over.
10. according to claim 2 or 7 described master-slave control methods for the converter inclining frequency conversion system, it is characterized in that as selecting torque from the frequency transformer of control with MUX8 and B_W functional block be output or the torque of other main frames output of the speed regulator of self, what be that B_W functional block input pin connects respectively is that the principal and subordinate selects front 3 of control word, pin X3, the X5 of MUX8 functional block, X6 be corresponding outside torque respectively, is specially:
The X6 of the second frequency transformer is connected the torque output of the first frequency transformer;
The X6 of the 3rd frequency transformer is connected the torque output of the first frequency transformer, X5 is connected the torque output of the second frequency transformer;
The X6 of the 4th frequency transformer is connected the torque output of the first frequency transformer, and the torque with X5 connects the second frequency transformer connects X3 the torque output of the 3rd frequency transformer.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103257642A (en) * | 2013-04-28 | 2013-08-21 | 深圳市英威腾电气股份有限公司 | Multiple-converter master-slave control system |
| CN103268095A (en) * | 2013-04-28 | 2013-08-28 | 深圳市英威腾电气股份有限公司 | Failure processing method and frequency converter multi-machine primary-and-secondary control system |
| CN105039641A (en) * | 2015-07-24 | 2015-11-11 | 山东钢铁股份有限公司 | Synchronous control method and system for converter tilting device |
| CN105739423A (en) * | 2016-02-19 | 2016-07-06 | 中冶南方工程技术有限公司 | Converter tilting quick start up and shut down stable furnace rocking control system and method |
| CN106694557A (en) * | 2016-08-17 | 2017-05-24 | 天津电气科学研究院有限公司 | Control system for core rod stop trolleys of seamless steel tube continuous rolling mills and control method thereof |
| CN107130081A (en) * | 2016-02-29 | 2017-09-05 | 鞍钢股份有限公司 | A kind of converter tipping motor excitation control system |
| CN109039164A (en) * | 2018-06-14 | 2018-12-18 | 武汉船用机械有限责任公司 | A kind of electric gear gear rack elevating system frequency converter master-slave control method |
| CN109777911A (en) * | 2019-03-13 | 2019-05-21 | 飞马智科信息技术股份有限公司 | A kind of control method and control system of converter inclining |
| CN111850231A (en) * | 2020-06-17 | 2020-10-30 | 重庆川仪自动化股份有限公司 | Method and device for counting number of start-stop times of converter tilting mechanism and accumulated running time of trunnion bearing |
| CN113885429A (en) * | 2021-10-22 | 2022-01-04 | 南阳汉冶特钢有限公司 | Method for controlling converter tilting system by using S120 frequency converter |
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| CN115786631A (en) * | 2021-09-09 | 2023-03-14 | 上海宝信软件股份有限公司 | Control method, system, equipment and medium suitable for converter tilting zero-speed hovering |
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| CN103268095B (en) * | 2013-04-28 | 2015-09-16 | 深圳市英威腾电气股份有限公司 | Fault handling method and Multiple-converter master-slave control system |
| CN103257642A (en) * | 2013-04-28 | 2013-08-21 | 深圳市英威腾电气股份有限公司 | Multiple-converter master-slave control system |
| CN103257642B (en) * | 2013-04-28 | 2016-07-27 | 深圳市英威腾电气股份有限公司 | Multiple-converter master-slave control system |
| CN105039641B (en) * | 2015-07-24 | 2017-11-10 | 山东钢铁股份有限公司 | A kind of Tilting Device of Converter synchronisation control means and system |
| CN105039641A (en) * | 2015-07-24 | 2015-11-11 | 山东钢铁股份有限公司 | Synchronous control method and system for converter tilting device |
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| CN105739423B (en) * | 2016-02-19 | 2018-06-08 | 中冶南方工程技术有限公司 | The steady grate control system of converter inclining rapid starting/stopping and method |
| CN107130081A (en) * | 2016-02-29 | 2017-09-05 | 鞍钢股份有限公司 | A kind of converter tipping motor excitation control system |
| CN106694557A (en) * | 2016-08-17 | 2017-05-24 | 天津电气科学研究院有限公司 | Control system for core rod stop trolleys of seamless steel tube continuous rolling mills and control method thereof |
| CN109039164A (en) * | 2018-06-14 | 2018-12-18 | 武汉船用机械有限责任公司 | A kind of electric gear gear rack elevating system frequency converter master-slave control method |
| CN109777911A (en) * | 2019-03-13 | 2019-05-21 | 飞马智科信息技术股份有限公司 | A kind of control method and control system of converter inclining |
| CN111850231A (en) * | 2020-06-17 | 2020-10-30 | 重庆川仪自动化股份有限公司 | Method and device for counting number of start-stop times of converter tilting mechanism and accumulated running time of trunnion bearing |
| CN115786631A (en) * | 2021-09-09 | 2023-03-14 | 上海宝信软件股份有限公司 | Control method, system, equipment and medium suitable for converter tilting zero-speed hovering |
| CN115786631B (en) * | 2021-09-09 | 2024-03-15 | 上海宝信软件股份有限公司 | Control method, system, equipment and medium suitable for converter tilting zero-speed hovering |
| CN113885429A (en) * | 2021-10-22 | 2022-01-04 | 南阳汉冶特钢有限公司 | Method for controlling converter tilting system by using S120 frequency converter |
| CN114164313A (en) * | 2021-12-01 | 2022-03-11 | 首钢集团有限公司 | Converter tilting control method and system |
| CN114959166A (en) * | 2022-05-10 | 2022-08-30 | 首钢京唐钢铁联合有限责任公司 | Control method, device, equipment and medium for steelmaking converter |
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