CN107733275A - The four-quadrant rectifier control method and device of Locomotive Converter - Google Patents
The four-quadrant rectifier control method and device of Locomotive Converter Download PDFInfo
- Publication number
- CN107733275A CN107733275A CN201711092013.6A CN201711092013A CN107733275A CN 107733275 A CN107733275 A CN 107733275A CN 201711092013 A CN201711092013 A CN 201711092013A CN 107733275 A CN107733275 A CN 107733275A
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- China
- Prior art keywords
- grid side
- voltage
- side voltage
- locomotive converter
- control method
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
- H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
- H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/36—Arrangements for braking or slowing; Four quadrant control
-
- 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
- H02M1/0012—Control circuits using digital or numerical techniques
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention relates to the four-quadrant rectifier control method and device of the control method of Locomotive Converter, specially Locomotive Converter.The problem of control accuracy existing for the four-quadrant rectifier control method of existing Locomotive Converter is low, computationally intensive.The control method is realized by following steps：1）Gather grid side voltage, electric current and the DC bus-bar voltage of Locomotive Converter；2）Obtain the phase and amplitude of grid side voltage；3）Bus command voltage is set, and bus command voltage and the DC bus-bar voltage of collection are sent into PI controllers more afterwards；4）The output of PI controllers and the phase multiplication of grid side voltage, and obtain instruction current；5）Instruction current with collection grid side electric current relatively after, into PR controllers；6）The output of PR controllers after grid side voltage magnitude with being sent into pulse modulation module.The present invention substantially increases the response speed and control accuracy of system, reduces data amount of calculation.
Description
Technical field
The present invention relates to the four-quadrant rectifier of the control method of Locomotive Converter, specially Locomotive Converter
Control method and device.
Background technology
Four-quadrant Locomotive Converter can not only keep traction power supply net power factor close to 1, and make current on line side
Close to sine, the economic benefit of traction power supply net is improved, reduces the electromagnetic interference to power grid environment, and energy can be realized
Feedback, be used widely in electric locomotive transmission system.
Prior art uses the vector control method of Id_iq Current Decouplings to the four-quadrant rectifier of Locomotive Converter
Implement control, this control mode is to carry out a kind of direct current flow controlling party after vector to electric current using PI controllers
Formula, and low pass filter is usually added into during current transformation and is filtered, wave filter has amplitude attenuation and phase delay, and one
Aspect have impact on the dynamic response performance of system, reduce the control accuracy of system, each bat of another aspect Current calculation is all
Carry out current transformation and anti-change, amount of calculation increase.
The content of the invention
The present invention solve control accuracy existing for the four-quadrant rectifier control method of existing Locomotive Converter it is low,
A kind of the problem of computationally intensive, there is provided the four-quadrant rectifier control method and device of Locomotive Converter.
The present invention adopts the following technical scheme that realization：The four-quadrant rectifier control method of Locomotive Converter,
It is to be realized by following steps：
1）Gather grid side voltage, electric current and the DC bus-bar voltage of Locomotive Converter；
2）The phase and amplitude of grid side voltage is obtained according to the grid side voltage of collection；
3）Bus command voltage is set, and by bus command voltage compared with the DC bus-bar voltage of collection, then control by PI
Device forms busbar voltage closed loop（I.e. with bus command voltage and collection DC bus-bar voltage as PI controllers input）；
4）The output of PI controllers and the phase multiplication of grid side voltage, and obtain and the instruction of grid side voltage in phase electricity
Stream；
5）Instruction current is compared with the grid side electric current gathered（Make the difference）Afterwards, into PR controllers；
6）The output of PR controllers and grid side voltage magnitude relatively after, as the input signal of pulse modulation module, pulse is adjusted
The output of molding block is to control required pwm pulse, delivers to IGBT.
The present invention is a kind of adoption rate-resonant controller（PR controllers）The arrow being directly controlled to ac-side current
Amount control method, its controlled quentity controlled variable are of acs, eliminate the rings such as current transformation complicated during DC quantity control, filtering, inverse transformation
Section, substantially increases the response speed and control accuracy of system, reduces data amount of calculation.
The method of the invention is tested on medium voltage 1800V, 2800V, 3200V traction convertor, real
The error free tracking that electric current is surveyed to exchange is showed, intermediate dc bus voltage stabilization, ac-side current sine degree is preferable, whole to become
Flow device control logic to meet to require, communication and defencive function are complete, improve system dynamic response performance and steady-state behaviour, obtain
Good effect.
The four-quadrant rectifier control device of Locomotive Converter, including dsp chip, dsp chip are connected with FPGA moulds
Block, FPGA module are connected with the host computer for setting data input, and FPGA module has collection signal input part and PWM control arteries and veins
Rush output end.
The device realizes that wherein DSP mainly completes the calculating of control algolithm, the electricity of collection using DSP+FPGA structure
Pressure, current signal are inputted by the input of FPGA module, and obtained PWM control pulses are exported by the output end of FPGA module.Machine
IGBT switching frequencies in the four-quadrant rectifier of car traction convertor are relatively low, all sampling, control logic and communications in system
Transmission is all completed by FPGA, drastically increases control accuracy.
Brief description of the drawings
Fig. 1 is the structural representation of the four-quadrant rectifier control device of Locomotive Converter of the present invention.
Embodiment
The four-quadrant rectifier control method of Locomotive Converter, is realized by following steps：
1）Gather grid side voltage, electric current and the DC bus-bar voltage of Locomotive Converter；
2）The phase and amplitude of grid side voltage is obtained according to the grid side voltage of collection；
3）Bus command voltage is set, and by bus command voltage compared with the DC bus-bar voltage of collection, then control by PI
Device forms busbar voltage closed loop（I.e. with bus command voltage and collection DC bus-bar voltage as PI controllers input）；
4）The output of PI controllers and the phase multiplication of grid side voltage, and obtain and the instruction of grid side voltage in phase electricity
Stream；
5）Instruction current is compared with the grid side electric current gathered（Make the difference）Afterwards, into PR controllers；
6）The output of PR controllers and grid side voltage magnitude relatively after, as the input signal of pulse modulation module, pulse is adjusted
The output of molding block is to control required pwm pulse, delivers to IGBT.
When it is implemented, step 2）In, the grid side voltage of collection obtains grid side voltage by PLL phase-locked loop modules
Phase and amplitude.
The four-quadrant rectifier control device of Locomotive Converter, including dsp chip, dsp chip are connected with FPGA moulds
Block, FPGA module are connected with the host computer for setting data input, and FPGA module has collection signal input part and PWM control arteries and veins
Rush output end.When it is implemented, FPGA module also has virtual protection signal input part, for inputting such as excessively stream, overvoltage, excess temperature
Deng virtual protection signal, once there is the input of virtual protection signal, device will stop the output of PWM control pulses.
Claims (4)
1. the four-quadrant rectifier control method of a kind of Locomotive Converter, it is characterised in that realized by following steps：
1）Gather grid side voltage, electric current and the DC bus-bar voltage of Locomotive Converter；
2）The phase and amplitude of grid side voltage is obtained according to the grid side voltage of collection；
3）Bus command voltage is set, and by bus command voltage compared with the DC bus-bar voltage of collection, then control by PI
Device forms busbar voltage closed loop；
4）The output of PI controllers and the phase multiplication of grid side voltage, and obtain and the instruction of grid side voltage in phase electricity
Stream；
5）Instruction current with collection grid side electric current relatively after, into PR controllers；
6）The output of PR controllers and grid side voltage magnitude relatively after, as the input signal of pulse modulation module, pulse is adjusted
The output of molding block is to control required pwm pulse.
2. the four-quadrant rectifier control method of Locomotive Converter according to claim 1, it is characterised in that step
2）In, the grid side voltage of collection obtains the phase and amplitude of grid side voltage by PLL phase-locked loop modules.
3. the four-quadrant rectifier control device of the Locomotive Converter of control method as claimed in claim 1 is realized, including
Dsp chip, it is characterised in that dsp chip is connected with FPGA module, and FPGA module is connected with for setting the upper of data input
Machine, FPGA module have collection signal input part and PWM control pulse output ends.
4. the four-quadrant rectifier control device of Locomotive Converter according to claim 3, it is characterised in that FPGA
Module also has virtual protection signal input part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711092013.6A CN107733275A (en) | 2017-11-08 | 2017-11-08 | The four-quadrant rectifier control method and device of Locomotive Converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711092013.6A CN107733275A (en) | 2017-11-08 | 2017-11-08 | The four-quadrant rectifier control method and device of Locomotive Converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107733275A true CN107733275A (en) | 2018-02-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711092013.6A Pending CN107733275A (en) | 2017-11-08 | 2017-11-08 | The four-quadrant rectifier control method and device of Locomotive Converter |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879630A (en) * | 2018-07-11 | 2018-11-23 | 中车永济电机有限公司 | Locomotive hands over the straight transformer DC magnetic bias suppressing method for handing over power supply system |
| CN112886590A (en) * | 2021-03-01 | 2021-06-01 | 中车株洲电力机车有限公司 | Traction network higher harmonic suppression method and system and rail transit vehicle |
| CN113014126A (en) * | 2019-12-19 | 2021-06-22 | 中车大连电力牵引研发中心有限公司 | Control method, device and equipment of four-quadrant rectifier and storage medium |
| CN113037148A (en) * | 2019-12-24 | 2021-06-25 | 中车永济电机有限公司 | Converter and traction drive system |
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| CN102163856A (en) * | 2011-03-01 | 2011-08-24 | 东南大学 | Vehicle-to-grid (V2G)-technology-based vehicle-mounted charging and discharging device and control method thereof |
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| CN113014126A (en) * | 2019-12-19 | 2021-06-22 | 中车大连电力牵引研发中心有限公司 | Control method, device and equipment of four-quadrant rectifier and storage medium |
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Application publication date: 20180223 |