CN105490562B - A kind of oscillation inhibition of 24 pulse wave phase control rectifier power supply and current-sharing control method - Google Patents
A kind of oscillation inhibition of 24 pulse wave phase control rectifier power supply and current-sharing control method Download PDFInfo
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- CN105490562B CN105490562B CN201511013681.6A CN201511013681A CN105490562B CN 105490562 B CN105490562 B CN 105490562B CN 201511013681 A CN201511013681 A CN 201511013681A CN 105490562 B CN105490562 B CN 105490562B
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- 238000005070 sampling Methods 0.000 claims abstract description 60
- 238000005516 engineering process Methods 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 8
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 description 6
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- BCGWQEUPMDMJNV-UHFFFAOYSA-N imipramine Chemical compound C1CC2=CC=CC=C2N(CCCN(C)C)C2=CC=CC=C21 BCGWQEUPMDMJNV-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
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- 238000009713 electroplating Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
- H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
- H02M7/12—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0038—Circuits or arrangements for suppressing, e.g. by masking incorrect turn-on or turn-off signals, e.g. due to current spikes in current mode control
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Abstract
The invention discloses a kind of oscillation inhibition of 24 pulse wave phase control rectifier power supply and current-sharing control methods, 46 pulse wave rectifier power supplys are focused on first, Time-sharing control, secondly using intelligent wave band sampling technique, Intelligent time-sharing PID control technology, PID control of staggering the time technology and multistage PID control technology, the method for described 46 pulse wave rectifier power supplys centralized processing is as follows：It is given to determine to give reception administrative unit by being transmitted under host computer；The feedback of 4 rectifier cabinets and total feedback information tap into sampling management unit, are managed concentratedly and are sampled by sampling management unit；It receives administrative unit and given will be assigned to total tune PID unit, total tune PID unit is adjusted according to total feedback, and result is always adjusted to be sent to single machine operating mode allocation managing unit；Single machine operating mode allocates management of unit and distributes the value that every rectifier cabinet should export according to the operating mode United Dispatching of each single machine.The oscillation of 24 pulse wave phase control rectifier power supplys of the invention inhibits and current-sharing control method avoids oscillation and the generation of uneven stream.
Description
Technical field
The present invention relates to a kind of control method, the oscillation of specifically a kind of 24 pulse wave phase control rectifier power supply inhibits and equal flow control
Method processed.
Background technology
It is to use 1 rectifier transformer, or several changes equivalent therewith on 24 pulse wave phase control rectifier power supply major loop structures
Depressor.The same phase of net side of rectifier transformer, but 15 degree are differed between adjacent valve side, each valve side of rectifier transformer and one
6 pulse wave rectifier cabinets constitute an independent rectifier power source, and in load end parallel connection, each rectifier power source is individually by 6 pulse waves
Control system controls, and then unifies to manage this 46 pulse wave control systems by a monitoring PLC.Since 46 pulse waves control
Do not interconnected between system, do not know operating mode between each other, and monitor PLC be by communication or analog quantity respectively with this 46 arteries and veins
Wave control system communicates, and this mode response speed is slow.Since load is one, influence each other between 4 power modules, without
It can be exported simultaneously with same voltage, electric current, will result in other 3 modular power sources when wherein a modular power source is adjusted
With being adjusted, the adjusting of this 3 power supplys causes the adjusting of First power supply, such vicious circle, to cause oscillation again.
Slight oscillation can cause load both ends electric current, voltage instability, influence the even running of electroplating effect or locomotive,
Oscillation amplitude is excessive, gently then burns out load, power supply itself, heavy then supply line is caused to be damaged, and causes major accident.
There is a kind of mode to inhibit to vibrate, using only being adjusted with a power supply, other power supplys only follow, and do not adjust
Section can cause the output between 4 power supplys uneven in this way, be flowed to uneven, some long-term overload operations of power supply, and another
A little power supplys hardly work, and on the one hand may can not meet total output requirement, and on the other hand seriously affect power supply uses the longevity
Life.
Invention content
The purpose of the present invention is to provide a kind of oscillation inhibition of 24 pulse wave phase control rectifier power supply and current-sharing control method, with
Solve the problems mentioned above in the background art.
To achieve the above object, the present invention provides the following technical solutions：
A kind of oscillation inhibition of 24 pulse wave phase control rectifier power supply and current-sharing control method, first by 46 pulse wave rectifier power supplys
Centralized processing, Time-sharing control, secondly using intelligent wave band sampling technique, Intelligent time-sharing PID control technology, PID control of staggering the time skill
Art and multistage PID control technology, 46 pulse wave rectifier power supplys are respectively designated as A rectifier cabinets, B rectifier cabinets, C rectifier cabinets and D rectifications
Cabinet.
As a further solution of the present invention：The method of described 46 pulse wave rectifier power supplys centralized processing is as follows：It is given by
It is transmitted under host computer and determines to give reception administrative unit；Feedback and the total feedback letter of A rectifier cabinets, B rectifier cabinets, C rectifier cabinets and D rectifier cabinets
Breath taps into sampling management unit, is managed concentratedly and is sampled by sampling management unit；Administrative unit is received to be assigned to given always again
PID unit, total tune PID unit is adjusted to be adjusted according to total feedback, it is total that result is adjusted to be sent to single machine operating mode allocation managing unit；Single machine
Operating mode allocates management of unit and distributes the value that every rectifier cabinet should export according to the operating mode United Dispatching of each single machine.
As a further solution of the present invention：15 degree are differed successively between described 46 pulse wave rectifier power supplys.
As a further solution of the present invention：The intelligence wave band sampling technique, except total feedback sample is adopted using timing
Outside sample, the single machine sampling of A rectifier cabinets, B rectifier cabinets, C rectifier cabinets, D rectifier cabinets is just connected when being worked using the output of the machine
Continuous sampling, A rectifier cabinets are sampled in A1, A2, A3, A4, A5, A6 period, and other times section stops sampling；B rectifier cabinets B1,
B2, B3, B4, B5, B6 period sample, and so on, every rectifier cabinet is only sampled in characteristic wavelengths.
As further scheme of the invention：The multistage PID control technology is as follows：PID and 4 points will be always adjusted first
It adjusts PID to be divided into two-stage, after each total tune PID adjustings are primary, after 4 points are adjusted PID respectively to execute 3-18 times, then executes next time total adjust
PID is adjusted, and secondly, each point is adjusted what PID is divided into according to the size of error again, the big preferential execution of error；Timesharing PID tune
Section, it is total that PID and each point of tune PID is adjusted to be run in the respective period；The PID that staggers the time is adjusted, i.e., staggering time is adjusted, in A rectifications
Point tune PID of execution B rectifier cabinets in cabinet output time section, executes point tune PID of C rectifier cabinets in B rectifier cabinet output time sections,
Point tune PID that D rectifier cabinets are executed in C rectifier cabinet output time sections, executes A rectifier cabinets in D rectifier cabinet output time sections
Divide and adjusts PID；Point tune PID that next output pulse is carried out during this output pulse is calculated, before pulse to be exported
A period calculate the output quantity of requirement.
Compared with prior art, the beneficial effects of the invention are as follows：The oscillation of 24 pulse wave phase control rectifier power supplys of the invention inhibits
And current-sharing control method avoids oscillation and the generation of uneven stream.
Description of the drawings
Fig. 1 is the functional block diagram of the application embodiment；
Fig. 2 is the oscillogram of the input of the application embodiment, output；
Fig. 3 is the trigger pulse sequence diagram of the application embodiment；
Fig. 4 is each control administrative unit operation sequence diagram of the application embodiment；
Fig. 5 is the control system hardware block diagram of the application embodiment；
Fig. 6 is the software control main flow chart of the application embodiment.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig.1~6, in the embodiment of the present invention, a kind of oscillation of 24 pulse wave phase control rectifier power supply inhibits and equal flow control
Method processed first focuses on 46 pulse wave rectifier power supplys, Time-sharing control, secondly using intelligent wave band sampling technique, intelligence
Timesharing PID control technology, PID control of staggering the time technology and multistage PID control technology, 46 pulse wave rectifier power supplys are respectively designated as A
Rectifier cabinet, B rectifier cabinets, C rectifier cabinets and D rectifier cabinets.
The method of described 46 pulse wave rectifier power supplys centralized processing is as follows：It is given to determine to give reception management by being transmitted under host computer
Unit；A rectifier cabinets, B rectifier cabinets, the feedback of C rectifier cabinets and D rectifier cabinets and total feedback information tap into sampling management unit, by
The centralized management sampling of sampling management unit；It receives administrative unit and given be assigned to always is adjusted into PID unit again, it is total to adjust PID unit root
It is adjusted according to total feedback, it is total that result is adjusted to be sent to single machine operating mode allocation managing unit；Single machine operating mode allocates management of unit according to each
The operating mode United Dispatching of platform single machine distributes the value that every rectifier cabinet should export.
15 degree are differed successively between described 46 pulse wave rectifier power supplys.
The intelligence wave band sampling technique, in addition to total feedback sample is using timing sampling, A rectifier cabinets, B rectifier cabinets, C are whole
Single machine sampling just progress continuous sampling when being worked using the output of the machine of stream cabinet, D rectifier cabinets, A rectifier cabinets A1, A2, A3,
A4, A5, A6 period sample, and other times section stops sampling；B rectifier cabinets are sampled in B1, B2, B3, B4, B5, B6 period, with
This analogizes, and every rectifier cabinet is only sampled in characteristic wavelengths.
The multistage PID control technology is as follows：PID and 4 points of tune PID is adjusted to be divided into two-stage by total first, it is each always to adjust PID
After adjusting once, after 4 points are adjusted PID respectively to execute 3-18 times, then executes and always PID is adjusted to adjust next time, next, each point is adjusted PID
What is divided into according to the size of error again, the big preferential execution of error；Timesharing PID is adjusted, total that PID and each point of tune PID is adjusted to exist
Respective period operation；The PID that staggers the time is adjusted, i.e., staggering time is adjusted, and B rectifier cabinets are executed in A rectifier cabinet output time sections
Point adjust PID, in B rectifier cabinet output time sections execute C rectifier cabinets point adjust PID, executed in C rectifier cabinet output time sections
Point tune PID of D rectifier cabinets executes point tune PID of A rectifier cabinets in D rectifier cabinet output time sections；In the mistake of this output pulse
Point tune PID that next output pulse is carried out in journey is calculated, and a period before pulse to be exported calculates the defeated of requirement
Output.
The present invention operation principle be：To avoid oscillation and the generation of uneven stream, first by 46 pulse wave rectifier power supply collection
Secondly middle processing, timesharing management use intelligent subband samples, Intelligent time-sharing, stagger the time, multistage PID control technology.
The synchronizing signal is normally taken from the net side of rectifier transformer, and it is same with 4 valve sides A, B, C, D respectively that rectification becomes net side
+ 22.5 ° ,+7.5 °, -7.5 °, -22.5 ° of the phase difference of one phase electricity.Certain synchronizing signal can also be derived from the valve side of rectification change, no
Manage these synchronize be derived from where, have to differ a fixed angles, and this respectively with 4 valve sides A, B, C, D that rectification becomes
Fixed angles cannot change in the process of running, therefore preferably be taken from the same power grid.
After the management by synchronization receives synchronizing signal, becomes valve side A, B, C, D fixed phase difference with rectification according to synchronous, determine every
The starting point of one trigger pulse transfers to timesharing administrative unit.
The timesharing administrative unit is one of core of the application, and timesharing administrative unit is received to be sent out from management by synchronization unit
The starting point of synchronous point and each trigger pulse, distribution time section adjust PID, single machine operating mode to allocate management of to total；Sampling management；
A, tetra- points of tune PID of B, C, D；A, tetra- pulse generations of B, C, D and output driving unit, allow each unit at a fixed time
Point, period operation.
In tetra- points of tune PID slow 3-18 periods of described total tune PID ratios A, B, C, D, governing speed should be met and ensured again,
It is total that PID, a point tune PID is adjusted not to influence each other.Each what a point tune PID is divided into according to the size of error again, and error is big preferentially to be held
Row.Timesharing PID is adjusted, total that PID and each point of tune PID is adjusted to be run in the respective period.The PID that staggers the time is adjusted, i.e. staggering time
It adjusts, point tune PID of B rectifier cabinets is executed in A rectifier cabinet output time sections；C rectifications are executed in B rectifier cabinet output time sections
Point tune PID of cabinet；Point tune PID of D rectifier cabinets is executed in C rectifier cabinet output time sections；It is held in D rectifier cabinet output time sections
Point tune PID of row A rectifier cabinets.Point tune PID that next output pulse is carried out during this output pulse is calculated, and defeated
A period before going out pulse calculates the output quantity of requirement.
The intelligent subband samples.In addition to total feedback sample is using timing sampling, the sampling of A, B, C, D single machine uses should
Continuous sampling is just carried out when the output of machine is worked, as shown in Fig. 2, A rectifier cabinets are adopted in A1, A2, A3, A4, A5, A6 period
Sample, other times section stop sampling；B rectifier cabinets are sampled in B1, B2, B3, B4, B5, B6 period, and so on, every rectification
Cabinet is only sampled in characteristic wavelengths.
The key of the application is to be improved the existing phased rectifier power source of 24 pulse, phased in improved 24 pulse
Oscillation inhibition and the current-sharing control method of the 24 pulse wave phase control rectifier power supplys of the application are proposed on the basis of rectifier power source.
The improved phased rectifier power source of 24 pulse of the application includes receiving to manage；Monitoring management；It is total to adjust PID；Management by synchronization；
Timesharing management；Single machine operating mode allocates management of；Sampling management；A, tetra- points of PID of B, C, D；A, tetra- pulses of B, C, D are generated and are exported
Driving unit；A, tetra- rectifier cabinets of B, C, D；A, tetra- rectifier cabinet outputting inductances of B, C, D；Rectifier transformer.Management is received to be responsible for
Receive the order from host computer, the work information that monitoring management unit is sent and the operating mode letter that power supply is uploaded to host computer
Breath will be given to fix to be transmitted to and always adjust PID.
Monitoring management unit is responsible for the operating mode of 4 power supplys of monitoring and always exports situation；Timely processing abnormity of power supply problem.
As shown in Figure 1, rectifier transformer uses 1 net side, 4 valve sides to share one that a secondary iron core is constituted in this example
A transformer.The net side and valve side waveform of rectifier transformer are as shown in Fig. 2, 4 valve side A, B, C, D and the phase difference of net side are distinguished
It it is+22.5 ° ,+7.5 °, -7.5 °, -22.5 °, synchronizing signal is derived from the net side of rectification change.
As shown in Fig. 2, management by synchronization unit determines the starting of time according to the output situation of synchronizing signal and each independent power source
Point and the starting point that synchronizing signal is separated to 24 periods and each period.
Timesharing administrative unit is one of core of the application, it receive from management by synchronization unit hair synchronous point and each
The starting point of trigger pulse, distribution time section adjust PID, single machine operating mode to allocate management of to total；Sampling management；A, tetra- points of B, C, D
Adjust PID；A, tetra- pulse generations of B, C, D and output driving unit, allow each unit at a fixed time point, the period operation,
Realize intelligent subband samples, Intelligent time-sharing, PID control of staggering the time technology.It sequential distribution as shown in figure 4, high level be operation,
Low level is to stop.Except total feedback sample uses timing sampling, outer, other units sort run on time is not influenced by sequential,
The A1 moment carries out A samplings, A pulses output, total tune PID calculating；The B1 moment carries out B samplings, B pulses output, other management controls,
Other management, which control, includes：Single machine operating mode allocation managing, monitoring management；C samplings, C pulses output, other pipes are carried out at the C1 moment
Reason control；D samplings, D pulses output, APID calculating are carried out at the D1 moment；A samplings, A pulses output, BPID are carried out at the A2 moment
It calculates；B samplings, B pulses output, CPID calculating are carried out at the B2 moment；C samplings, C pulses output, DPID meters are carried out at the C2 moment
It calculates；D samplings, D pulses output, other management controls are carried out at the D2 moment；The A3 moment carry out A samplings, A pulses output, other
Management control；B samplings, B pulses output, other management controls are carried out at the B3 moment；It is defeated in the sampling of C3 moment progress C, C pulses
Go out, other management controls；D samplings, D pulses output, APID calculating are carried out at the D3 moment；A samplings, A pulses are carried out at the A4 moment
Output, BPID are calculated；B samplings, B pulses output, CPID calculating are carried out at the B4 moment；It is defeated in the sampling of C4 moment progress C, C pulses
Go out, DPID is calculated；D samplings, D pulses output, other management controls are carried out at the D4 moment；A samplings, A pulses are carried out at the A5 moment
Output, other management controls；B samplings, B pulses output, other management controls are carried out at the B5 moment；The C5 moment carry out C samplings,
C pulses output, other management controls；D samplings, D pulses output, APID calculating are carried out at the D5 moment；A is carried out at the A6 moment to adopt
Sample, A pulses output, BPID are calculated；B samplings, B pulses output, CPID calculating are carried out at the B6 moment；The C6 moment carry out C samplings,
C pulses output, DPID are calculated；D samplings, D pulses output, other management controls are carried out at the D6 moment.
Single machine operating mode allocates management of operating mode and total general output for adjusting PID to require according to tetra- single machines of A, B, C, D, and determines
This output quantity is sent to tetra- points of tune PID of A, B, C, D by the output quantity of every single machine.
PID regulating systems are another cores of the application.It is total that PID and 4 points of tune PID is adjusted to form multistage PID, first will
Total that PID and 4 points of tune PID is adjusted to be divided into two-stage, after each always PID being adjusted to adjust once, 4 points of tune PID are respectively executed 3-18 times（Depending on tune
It is fixed to save situation）Afterwards, then execute next time always adjust PID adjust.Secondly, adjust what PID is divided into according to the size of error again for each point,
The big preferential execution of error.Timesharing PID is adjusted, total that PID and each point of tune PID is adjusted to be run in the respective period.It staggers the time PID tune
Section, i.e. staggering time are adjusted, and point tune PID of B rectifier cabinets is executed in A rectifier cabinet output time sections；In B rectifier cabinet output times
Point tune PID of C rectifier cabinets is executed in section；Point tune PID of D rectifier cabinets is executed in C rectifier cabinet output time sections；In D rectifier cabinets
Point tune PID of A rectifier cabinets is executed in output time section.Point tune of next output pulse is carried out during this output pulse
PID is calculated, and a period before pulse to be exported calculates the output quantity of requirement.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (4)
1. oscillation inhibition and the current-sharing control method of a kind of 24 pulse wave phase control rectifier power supply, which is characterized in that 46 pulse waves are whole
The centralized processing of galvanic electricity source, Time-sharing control, 46 pulse wave rectifier power supplys are respectively designated as A rectifier cabinets, B rectifier cabinets, C rectifier cabinets and D
Rectifier cabinet；The method of described 46 pulse wave rectifier power supplys centralized processing is as follows：It is given to determine to give reception management by being transmitted under host computer
Unit；A rectifier cabinets, B rectifier cabinets, the feedback of C rectifier cabinets and D rectifier cabinets and total feedback information tap into sampling management unit, by
The centralized management sampling of sampling management unit；It receives administrative unit and given be assigned to always is adjusted into PID unit again, it is total to adjust PID unit root
It is adjusted according to total feedback, it is total that result is adjusted to be sent to single machine operating mode allocation managing unit；Single machine operating mode allocates management of unit according to each
The operating mode United Dispatching of platform single machine distributes the value that every rectifier cabinet should export；
The Time-sharing control uses timesharing administrative unit, timesharing administrative unit to receive the synchronous point sent out from management by synchronization unit
And the starting point of each trigger pulse, distribution time section adjust PID, single machine operating mode to allocate management of to total, sampling management unit, A,
B, tetra- points of C, D tune PID, tetra- pulse generations of A, B, C, D and output driving unit, allow each unit at a fixed time point,
Period runs.
2. the oscillation inhibition of 24 pulse wave phase control rectifier power supply according to claim 1 and current-sharing control method, feature exist
In differing 15 degree successively between described 46 pulse wave rectifier power supplys.
3. the oscillation inhibition of 24 pulse wave phase control rectifier power supply according to claim 1 and current-sharing control method, feature exist
In further including intelligent wave band sampling technique, the intelligence wave band sampling technique is the A using in addition to timing sampling except total feedback sample
The single machine sampling of rectifier cabinet, B rectifier cabinets, C rectifier cabinets, D rectifier cabinets just carries out continuous sampling when working using the output of the machine,
A rectifier cabinets are sampled in A1, A2, A3, A4, A5, A6 period, and other times section stops sampling；B rectifier cabinets B1, B2, B3, B4,
B5, B6 period sample, and so on, every rectifier cabinet is only sampled in characteristic wavelengths.
4. the oscillation inhibition of 24 pulse wave phase control rectifier power supply according to claim 1 and current-sharing control method, feature exist
In further including multistage PID control technology, the multistage PID control technology is as follows：PID and 4 points of PID points of tune will be always adjusted first
At two-stage, after each always tune PID is adjusted once, after 4 points are adjusted PID respectively to execute 3-18 times, then total tune PID tune next time is executed
Section, secondly, each point is adjusted what PID is divided into according to the size of error again, the big preferential execution of error；Timesharing PID is adjusted, total to adjust
PID and each point of tune PID are run in the respective period；The PID that staggers the time is adjusted, i.e., staggering time is adjusted, when A rectifier cabinets export
Between execute B rectifier cabinets in section point adjust PID, C rectifier cabinets are executed in B rectifier cabinet output time sections point adjusts PID, in C rectifications
Point tune PID of execution D rectifier cabinets in cabinet output time section, executes point tune PID of A rectifier cabinets in D rectifier cabinet output time sections；
Next output pulse is carried out during this output pulse point adjusts a PID to calculate, when one before pulse to be exported
Between section calculate the output quantity of requirement.
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| CN104821576A (en) * | 2015-04-14 | 2015-08-05 | 西华大学 | Direct-current traction power supply system based on buck type direct-current converter and control method thereof |
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| CN105490562A (en) | 2016-04-13 |
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