CN103187918A - Traction invertor controlling method and device - Google Patents
Traction invertor controlling method and device Download PDFInfo
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- CN103187918A CN103187918A CN2011104515287A CN201110451528A CN103187918A CN 103187918 A CN103187918 A CN 103187918A CN 2011104515287 A CN2011104515287 A CN 2011104515287A CN 201110451528 A CN201110451528 A CN 201110451528A CN 103187918 A CN103187918 A CN 103187918A
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Abstract
The invention provides a traction invertor controlling method and device. The traction invertor controlling method comprises the steps of configuring parameters and entering open loop constant voltage frequency ratio control or vector control according to the parameters, and conducting pulse width modulation control on voltage signals output after control steps are carried out. The traction invertor controlling device comprises a parameter configuration and control module, an open loop constant voltage frequency ratio control module, a vector control module and a pulse width modulation module. The parameter configuration and control module is used for configuring the parameters, and corresponding control modules are called according to the parameters. The open loop constant voltage frequency ratio control module is used for executing the open loop constant voltage frequency ratio control according to received calling instruments and outputting the controlled voltage signals. The vector control module is used for executing the vector control according to the received calling instruments and outputting the controlled voltage signals. The pulse width modulation module is used for conducting pulse width modulation control on the received voltage signals. The traction invertor controlling method and device is high in control performance and good in dynamic response performance.
Description
Technical field
The present invention relates to adverser control technology, relate in particular to a kind of traction invertor control method and device.
Background technology
The high-power electric locomotive mainly refers to shaft power in main line shipping or the Passenger Electric Locomotive of 1200KW or 1600KW grade, and its traction invertor is mainly used in providing power supply to traction electric machine, satisfies the needs of locomotive tractive characteristic and basic control function.
The traction invertor control algolithm mainly is divided into traction electric machine Characteristics Control, adhesion control and basic function control etc.The traction electric machine control algolithm mainly contains slip frequency controlled, direct torque control and vector control etc.Slip frequency controlled is based on the control algolithm of motor steady-state model, and dynamic response is slower.Direct torque control is directly controlled the electromagnetic torque of traction electric machine, does not have current closed-loop control, and current harmonics causes motor temperature higher than Da Yi.Vector control is based on dc motor model alternating current machine is carried out decoupling zero control, the output pulse is modulated, so dynamic response is fast and current harmonics is little and controlled.Use the HXD1 type that mainly contains Siemens Company of vector control technology, the HXD2 type of Alstom, HXD2C type and the electric locomotive of HXD3 type of Toshiba at present.The algorithm that the southern car of domestic corporation China is applied to traction invertor control is mainly direct torque control.
Existing traction invertor control algolithm based on vector control technology generally comprises pulse width modulation algorithm, traction electric machine control algolithm and locomotive speed control algolithm.Wherein, pulse width modulation algorithm has been used the segment sync modulator approach, according to locomotive speed the traction invertor full speed range is divided into asynchronous modulation, synchronous modulation, ovennodulation, 3 frequency divisions and square wave etc.The traction electric machine control algolithm adopts the vector control algorithm based on torque control, has used the basic control structure of comparatively single indirect vector control system, comprises current regulation loop, decoupling zero unit, flux observation and pwm unit etc.The locomotive speed control algolithm adopts the method for single shaft control, and the traction invertor of each is gathered the speed of locomotive given speed and corresponding axle and carried out speed closed loop control, adopts anti-skidding anti-idle running control algolithm that the tractive effort set-point is revised.
Some shortcoming below the existence of above-mentioned traction invertor control algolithm based on vector control technology:
(1) pulse width modulation algorithm is comparatively complicated, has used the ovennodulation algorithm after entering the synchronous modulation district, need carry out more Nonlinear Processing, has increased the burden that algorithm is implemented difficulty and processor.
(3) there is not rotating speed open loop control strategy in the traction electric machine control algolithm, can't verify separately that open cycle system is stable, can't verify the correctness of pulse width modulation algorithm separately, in process of the test, also can't the correlation test environment be examined as accompanying examination equipment to carry out speed control.In addition, the vector control algorithm structure that the traction electric machine control algolithm adopts is single, because the characteristic variations of traction electric machine in full speed range is bigger, only use current closed-loop control to be difficult to the effect that reaches full decoupled, and enter the traction invertor output voltage substantially constant behind the constant power area, electric current is regulated ineffective.
(4) the locomotive speed control algolithm is based on single shaft control, the speed that will cause every repacking to be surveyed owing to reasons such as wheel wearing and tearing has certain deviation, therefore may occur under the synchronization, the part axle of locomotive is in traction working condition, partly axle is in the phenomenon of damped condition, all is irrational for basic logic and Energy Saving Control.
Summary of the invention
The invention provides a kind of traction invertor control method and device, to overcome above-mentioned each defective, improve control performance.
One aspect of the present invention provides a kind of traction invertor control method, comprising:
Configuration parameter enters the control of open loop constant voltage and frequency ratio or vector control according to described parameter; And
The voltage signal of exporting after above-mentioned control step is carried out pulse width modulation controlled;
Wherein, described open loop constant voltage and frequency ratio control, following realization:
According to setting the instruction input of climbing that slope carries out given frequency; And
The instruction of climbing according to the given frequency of importing calculates corresponding voltage signal respectively, and described voltage signal comprises voltage magnitude information and angle information;
Described vector control, following realization:
Judge whether the input of constant speed control command, be, gathered locomotive actual speed signal and given speed value, and calculated given torque value according to described rate signal and given speed value; Otherwise, calculate given torque value according to curve of traction characteristics;
Based on the adhesion control algolithm given torque value is revised;
Vector control algorithm foundation based on full speed range calculates voltage signal through revised described given torque value, and described voltage signal comprises voltage magnitude information and angle information.
Another aspect of the present invention provides a kind of traction invertor control device, comprising:
Parameter configuration and control module are used for configuration parameter, according to the corresponding control module of parameter call;
Open loop constant voltage and frequency ratio control module is used for carrying out the control of open loop constant voltage and frequency ratio and the voltage signal of output after control according to the call instruction that receives;
Vector control module is used for carrying out vector control and the voltage signal of output after control according to the call instruction that receives; And
Pulse width modulation module is used for the voltage signal of described open loop constant voltage and frequency ratio control module and the output of described vector control module being carried out pulse width modulation controlled, the pulse signal of output after modulation;
Wherein, described voltage signal comprises: voltage magnitude information and angle information.
The technique effect of first aspect of the present invention is: the control method that the present invention proposes is applicable to the control of high-power electric locomotive traction inverter.This control method provides the control of open loop constant voltage and frequency ratio and two kinds of control strategies of vector control, can select by the configuration relevant parameter.The present invention not only can be used for verifying separately the stability of open cycle system and the correctness of pulse width modulation algorithm when adopting the control of open loop constant voltage and frequency ratio, can also the correlation test environment be examined as accompanying examination equipment to carry out speed control in process of the test.The present invention can improve the control performance of traction electric machine effectively when adopting vector control.In addition, the present invention has also adopted locomotive constant speed control, has avoided the part axle of locomotive under the synchronization to be in the phenomenon that traction working condition, part axle be in damped condition effectively and has taken place.
The technique effect of another aspect of the present invention is: adopt control device of the present invention can solve the defective that proposes in the background technology effectively, and can improve the control performance that inverter is controlled, the dynamic response time that has reduced control effectively.
Description of drawings
Fig. 1 is the schematic flow sheet of the embodiment one of traction invertor control method provided by the invention;
Fig. 2 is the schematic flow sheet of the embodiment two of traction invertor control method provided by the invention;
Fig. 3 is the schematic diagram of the vector control algorithm of full speed range among the embodiment provided by the invention;
Fig. 4 is the structural representation of traction invertor control device embodiment one provided by the invention;
Fig. 5 is the structural representation of traction invertor control device embodiment two provided by the invention;
Fig. 6 is an instantiation schematic diagram of curve of traction characteristics.
Embodiment
As described in Figure 1, the schematic flow sheet of the embodiment one of traction invertor control method provided by the invention.Present embodiment comprises:
Step S1, configuration parameter enter the control of open loop constant voltage and frequency ratio or vector control according to described parameter;
Step S2, the voltage signal of exporting is carried out pulse width modulation controlled behind above-mentioned steps S1;
Wherein, the open loop constant voltage and frequency ratio control described in the step S1, following realization:
Step S101, foundation are set the instruction input of climbing that slope carries out given frequency;
The instruction of climbing of the given frequency of step S102, foundation input calculates corresponding voltage signal respectively, and described voltage signal comprises voltage magnitude information and angle information;
Vector control described in the step S1, following realization:
Step S103, judged whether to be constant speed control command input, gathered locomotive actual speed signal and given speed value, and calculate given torque value according to described rate signal and given speed value; Otherwise, calculate given torque value according to curve of traction characteristics; Wherein, described curve of traction characteristics is the inherent characteristic of each locomotive traction unit, and process obtains by experiment, as shown in Figure 6.
Step S104, based on the adhesion control algolithm given torque value is revised;
Step S105, based on the vector control algorithm of full speed range according to calculating voltage signal through revised described given torque value; Described voltage signal comprises voltage magnitude information and angle information.
Present embodiment provides the control of open loop constant voltage and frequency ratio and two kinds of control strategies of vector control, can select to have good applicability to satisfy the needs of test or operation by the configuration relevant parameter; The control method that adopts present embodiment to provide in addition can improve the control performance of traction electric machine effectively, and has avoided the part axle of locomotive under the synchronization to be in the phenomenon that traction working condition, part axle be in damped condition by constant speed control taking place.When practical application, described configuration parameter resets effectively, and so just can power in system according to the demand of reality reconfigures parameter after restarting, and selects corresponding control strategy according to parameter.Calculate given torque value according to described rate signal and given speed value among the step S103, when practical application, rate signal and given speed value input pi regulator can be calculated, draw given torque value.
As shown in Figure 2, the schematic flow sheet of the embodiment two of traction invertor control method provided by the invention.Present embodiment is based on embodiment one, and the vector control algorithm of full speed range among the step S105 described in the embodiment one is implemented as follows:
Whether the monitoring rotating speed of motor judges described rotating speed less than first preset rotation speed in real time, if adopt magnetic linkage open loop control algolithm; Otherwise, continue next step;
Judge described rotating speed whether greater than described first preset rotation speed less than second preset rotation speed, if adopt the magnetic linkage closed loop control algorithm; Otherwise, continue next step;
Whether judge described rotating speed greater than described second preset rotation speed, adopt the scalar control algolithm; Otherwise this rotating speed is exceptional value, returns and monitors rotating speed of motor again.
Embodiment two adopts different vector control modes according to rotating speed of motor, has overcome second shortcoming in the background technology, has improved the control performance of traction electric machine effectively.
In conjunction with the described schematic diagram of Fig. 3, the implementation procedure of the vector control algorithm of full speed range among each embodiment of traction invertor control method provided by the invention is as follows:
Step a, according to setting the instruction input of climbing that slope carries out given torque;
Step b, calculate the torque current set-point respectively according to the instruction of climbing of the given torque of input, described torque current set-point and torque current detected value are carried out deviation calculate output voltage Q axle component; Deviation is calculated and can be adopted torque current regulator in this step, and this torque current regulator can be proportional and integral controller.
Step c, calculate the flux linkage set value according to motor speed and magnetic linkage opisometer, with described flux linkage set value with adopt the flux observation value of default flux observation model observation to calculate the exciting current set-point through the magnetic linkage adjuster; Described exciting current set-point and exciting current detected value are carried out deviation calculating output voltage D axle component; Deviation described in this step is calculated can adopt exciting current controller, and this exciting current controller can be proportional and integral controller.
Steps d, with above-mentioned voltage Q axle component and voltage D axle component respectively and corresponding feed-forward voltage addition obtain output voltage amplitude and angle by coordinate transform;
Wherein, the motor full speed range is divided into three ranges of speeds, and described default flux observation model adopts different flux observation models in described motor speed is in the different rotating speeds scope.Need to prove in addition, Q axle among above-mentioned steps b, c and the d and the definition of D axle: in AC Motor Control, in order to access similar control of DC characteristic, set up a coordinate system at rotor, this coordinate system and rotor rotate synchronously, getting the rotor field direction is the D axle, is the Q axle perpendicular to the rotor field direction.
The vector control algorithm of full speed range is the horizontal division to control algolithm among the embodiment two, and the corresponding different ranges of speeds adopts different control to improve control performance.And the vector control algorithm of the described full speed range of Fig. 3 is the vertical division to control algolithm, the corresponding different range of speeds all adopts algorithm shown in Figure 3 basically, the different default flux observation models that are in the different rotating speeds scope that only are should adopt different flux observation models, calculate the account form difference of exciting current set-point.
As shown in Figure 2, traction invertor control method embodiment three of the present invention on the basis of present embodiment based on the various embodiments described above, before described step S1, also comprises:
Step S ' 101, the voltage and current information of sampling in the pulliung circuit, and the information of sampling carried out digitized processing;
Step S ' 102, Monitoring and Controlling instruction in real time and state information; Wherein, described control command comprises: traffic direction and/or handle level, and state information comprises: malfunction and/or command status;
The voltage and current information of step S ' 103, foundation sampling and control command or the state information of monitoring in real time judge whether motor satisfies entry condition, if satisfied, enter the shutdown processing procedure; Otherwise, carry out subsequent step.
The setting of step S ' 101 and S ' 102 is for required relevant information in the subsequent step is provided, and the judgment basis of entry condition can be provided when electric motor starting.The setting of step S ' 103 is in order in time to enter the shutdown processing procedure when motor can not normally start, to avoid misoperation.
Preferably, the pulse width modulation controlled described in the various embodiments described above, can adopt following steps to realize:
Step S201,4 switch speed values that increase successively are set, are respectively first velocity amplitude, second speed value, third speed value and the 4th velocity amplitude, increase successively from described first velocity amplitude to described the 4th velocity amplitude;
Step S202, adopt asynchronous modulation less than the speed interval before first speed point;
Step S203, first speed point to the speed interval between the second speed point adopt 15 frequency division synchronous modulation;
Step S204, second speed are put to the speed interval between the third speed point and are adopted 7 frequency division synchronous modulation;
Adopted 3 frequency division synchronous modulation to the speed interval between the 4th speed point at step S205, third speed o'clock;
Step S206, the later speed interval of the 4th speed point adopt square-wave frequency modulation.
The pulse width modulation control method of said process, overcome first defective in the background technology, adopt the segment sync modulation system, in the whole frequency range of traction invertor output, used asynchronous modulation, 15 frequency division synchronous modulation, 7 frequency division synchronous modulation, 3 frequency division synchronous modulation and square-wave frequency modulation method.In addition, between each modulation system, preferably use and seamlessly transit strategy and to stagnate ring control.Wherein seamlessly transitting strategy is based on the switching point condition of carrying out is selected to guarantee that the transient process no current impacts.The ring control that stagnates is the very wide closed loop current tracking and controlling method of a kind of application, and is fast and simple in structure and celebrated with response speed usually.In various converter control systems, the ring control unit that stagnates generally has two kinds of functions simultaneously concurrently, first as the closed loop current adjuster, second plays a part the PWM modulator, and the current reference signal dress is changed to corresponding switch command signal.Stagnant ring control described in the present invention can adopt stagnant ring control theory of the prior art to realize, the ring control band that stagnates all is set at each switch speed point place, and each switch speed point and hysteresis band are configured by parameter.In addition, need to prove here: it is fixed that above-mentioned each velocity amplitude can be offered according to the maximum switching frequency that motor speed and power model allow.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each method embodiment can be finished by the relevant hardware of program command.Aforesaid program can be stored in the computer read/write memory medium.This program is carried out the step that comprises above-mentioned each method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
As shown in Figure 4, the structural representation of traction invertor control device embodiment one of the present invention.The described traction invertor control method that the various embodiments described above provide can adopt the described traction invertor control device of present embodiment to realize.The described traction invertor control device of present embodiment comprises: parameter configuration and control module 1, open loop constant voltage and frequency ratio control module 2, vector control module 3 and pulse width modulation module 4.The control command output of described parameter configuration and control module 1 communicates to connect with described open loop constant voltage and frequency ratio control module 2 and described vector control module 3 respectively, and the signal output part of described open loop constant voltage and frequency ratio control module 2 and described vector control module 3 and the signal input part of described pulse width modulation module 4 communicate to connect.Described parameter configuration and control module 1 are used for configuration parameter, according to the corresponding control module of parameter call.Described open loop constant voltage and frequency ratio control module 2 is used for carrying out the control of open loop constant voltage and frequency ratio and the voltage signal of output after control according to the call instruction that receives.Described vector control module 3 is used for carrying out vector control and the voltage signal of output after control according to the call instruction that receives.Described pulse width modulation module 4 is used for the voltage signal of described open loop constant voltage and frequency ratio control module and the output of described vector control module being carried out pulse width modulation controlled, the pulse signal of output after modulation.Wherein, described voltage signal comprises: voltage magnitude information and angle information.
The described traction invertor control device of present embodiment can be selected the control of open loop constant voltage and frequency ratio and these two kinds of control strategies of vector control by the configuration relevant parameter, solved the shortcoming in the background technology, control performance is provided effectively, has reduced the dynamic response time of control.
As shown in Figure 5, the structural representation of traction invertor control device embodiment two provided by the invention.Based on embodiment one, the vector control module described in the present embodiment comprises: motor speed detects and control submodule 301, magnetic linkage open loop control submodule 302, magnetic linkage closed-loop control submodule 303 and scalar control submodule 304.Described motor speed detects and the control command output of control submodule 301 links to each other with described magnetic linkage open loop control submodule 302, described magnetic linkage closed-loop control submodule 303 and the control command input of described scalar control submodule 304 respectively.Wherein, described motor speed detects and control submodule 301 is used for detecting in real time rotating speed of motor, and call magnetic linkage open loop control submodule during less than first preset rotation speed at described rotating speed, call magnetic linkage closed-loop control submodule during less than second preset rotation speed greater than described first preset rotation speed at described rotating speed, call scalar control submodule during greater than described second preset rotation speed at described rotating speed.Described magnetic linkage open loop control submodule 302 is used for carrying out magnetic linkage open loop control and the voltage signal of output after control according to the call instruction that receives.Described magnetic linkage closed-loop control submodule 303 is used for carrying out magnetic linkage closed-loop control and the voltage signal of output after control according to the call instruction that receives.Described scalar control submodule 304 is used for carrying out scalar control and the voltage signal of output after control according to the call instruction that receives.The present embodiment vector control module can adopt different control submodules according to rotating speed of motor, has overcome second shortcoming in the background technology effectively, has improved the control performance of traction electric machine.
Further, based on the various embodiments described above, the 3rd embodiment of the traction inversion control device that present embodiment provides.Present embodiment has been set up following module on the basis of the various embodiments described above, is respectively: sampling module, detection module and determination module.The sample information output of described sampling module and open loop constant voltage and frequency ratio control module and/or vector control module communicate to connect, and also communicate to connect with described determination module simultaneously; The monitoring information output of described detection module and open loop constant voltage and frequency ratio control module and/or vector control module communicate to connect; Also communicate to connect with described determination module simultaneously.Wherein, sampling module is used for the voltage and current parameter of sampling pulliung circuit, and the parameter of sampling is carried out digitized processing.Detection module is used for real-time Monitoring and Controlling instruction and state information; Wherein, described control command comprises: traffic direction and/or handle level, state information comprises: malfunction and/or command status.Determination module is used for judging according to control command or the state information of the voltage and current information of sampling and monitoring in real time whether motor satisfies entry condition, does not enter the shutdown processing procedure if do not satisfy.
Described sampling module and described detection module can be other modules relevant information required when carrying out control procedure are provided, and the judgment basis of entry condition can also be provided when electric motor starting.Described determination module can in time enter the shutdown processing procedure when motor can not normally start, avoid misoperation.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although the present invention has been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a traction invertor control method is characterized in that, comprising:
Configuration parameter enters the control of open loop constant voltage and frequency ratio or vector control according to described parameter; And
The voltage signal of exporting after above-mentioned control step is carried out pulse width modulation controlled;
Wherein, described open loop constant voltage and frequency ratio control, following realization:
According to setting the instruction input of climbing that slope carries out given frequency; And
The instruction of climbing according to the given frequency of importing calculates corresponding voltage signal respectively, and described voltage signal comprises voltage magnitude information and angle information;
Described vector control, following realization:
Judge whether the input of constant speed control command, be, gathered locomotive actual speed signal and given speed value, and calculated given torque value according to described rate signal and given speed value; Otherwise, calculate given torque value according to curve of traction characteristics;
Based on the adhesion control algolithm given torque value is revised;
Vector control algorithm foundation based on full speed range calculates voltage signal through revised described given torque value, and described voltage signal comprises voltage magnitude information and angle information.
2. traction invertor control method according to claim 1 is characterized in that, the vector control algorithm of described full speed range comprises the steps:
Whether the monitoring rotating speed of motor judges described rotating speed less than first preset rotation speed in real time, if adopt magnetic linkage open loop control algolithm; Otherwise, continue next step;
Judge described rotating speed whether greater than described first preset rotation speed less than second preset rotation speed, if adopt the magnetic linkage closed loop control algorithm; Otherwise, continue next step;
Whether judge described rotating speed greater than described second preset rotation speed, adopt the scalar control algolithm; Otherwise this rotating speed is exceptional value, returns and monitors rotating speed of motor again.
3. traction invertor control method according to claim 1 is characterized in that, the vector control algorithm of described full speed range comprises the steps:
According to setting the instruction input of climbing that slope carries out given torque;
The instruction of climbing according to the given torque of importing calculates the torque current set-point respectively, and described torque current set-point and torque current detected value are carried out deviation calculating output voltage Q axle component;
Calculate the flux linkage set value according to motor speed, described flux linkage set value and the flux observation value that adopts default flux observation model observation are calculated the exciting current set-point through adjuster; Described exciting current set-point and exciting current detected value are carried out deviation calculating output voltage D axle component;
Above-mentioned voltage Q axle component and voltage D axle component are obtained output voltage amplitude and angle with corresponding feed-forward voltage addition by coordinate transform respectively;
Wherein, the motor full speed range is divided into three ranges of speeds, and described default flux observation model adopts different flux observation models in described motor speed is in the different rotating speeds scope.
4. traction invertor control method according to claim 1 is characterized in that, before the configuration parameter, also comprises:
The voltage and current information of sampling in the pulliung circuit, and the information of sampling carried out digitized processing;
Monitoring and Controlling instruction in real time and state information; Wherein, described control command comprises: traffic direction and/or handle level, and state information comprises: malfunction and/or command status;
According to the voltage and current information of sampling and control command or the state information of monitoring in real time, judge whether motor satisfies entry condition, if do not satisfy, enter the shutdown processing procedure; Otherwise, carry out subsequent step.
5. traction invertor control method according to claim 1 is characterized in that, described pulse width modulation controlled comprises:
4 switch speed values that increase successively are set, are respectively first velocity amplitude, second speed value, third speed value and the 4th velocity amplitude, increase successively from described first velocity amplitude to described the 4th velocity amplitude;
Adopt asynchronous modulation less than the speed interval before first speed point;
First speed point to the speed interval between the second speed point adopts 15 frequency division synchronous modulation;
Second speed is put to the speed interval between the third speed point and is adopted 7 frequency division synchronous modulation;
Third speed o'clock to the speed interval between the 4th speed point adopts 3 frequency division synchronous modulation;
The later speed interval of the 4th speed point adopts square-wave frequency modulation.
6. traction invertor control method according to claim 5 is characterized in that, described pulse width modulation algorithm also comprises: adopt to seamlessly transit strategy between above-mentioned each modulated process.
7. traction invertor control method according to claim 5 is characterized in that, described pulse width modulation algorithm also comprises: the ring control band that stagnates all is set at each switch speed point place, and each switch speed point and hysteresis band are configured by parameter.
8. a traction invertor control device is characterized in that, comprising:
Parameter configuration and control module are used for configuration parameter, according to the corresponding control module of parameter call;
Open loop constant voltage and frequency ratio control module is used for carrying out the control of open loop constant voltage and frequency ratio and the voltage signal of output after control according to the call instruction that receives;
Vector control module is used for carrying out vector control and the voltage signal of output after control according to the call instruction that receives; And
Pulse width modulation module is used for the voltage signal of described open loop constant voltage and frequency ratio control module and the output of described vector control module being carried out pulse width modulation controlled, the pulse signal of output after modulation;
Wherein, described voltage signal comprises: voltage magnitude information and angle information.
9. traction invertor control device according to claim 8 is characterized in that, described vector control module comprises: motor speed detects and control submodule, magnetic linkage open loop control submodule, magnetic linkage closed-loop control submodule and scalar control submodule; Wherein,
Described motor speed detects and the control submodule, be used for detecting in real time rotating speed of motor, and call magnetic linkage open loop control submodule during less than first preset rotation speed at described rotating speed, call magnetic linkage closed-loop control submodule during less than second preset rotation speed greater than described first preset rotation speed at described rotating speed, call scalar control submodule during greater than described second preset rotation speed at described rotating speed;
Described magnetic linkage open loop control submodule is used for carrying out magnetic linkage open loop control and the voltage signal of output after control according to the call instruction that receives;
Described magnetic linkage closed-loop control submodule is used for carrying out magnetic linkage closed-loop control and the voltage signal of output after control according to the call instruction that receives;
Described scalar control submodule is used for carrying out scalar control and the voltage signal of output after control according to the call instruction that receives.
10. traction invertor control device according to claim 8 is characterized in that, also comprises:
Sampling module is used for the voltage and current parameter of sampling pulliung circuit, and the parameter of sampling is carried out digitized processing;
Detection module is used for real-time Monitoring and Controlling instruction and state information; Wherein, described control command comprises: traffic direction and/or handle level, and state information comprises: malfunction and/or command status;
Determination module is used for judging according to the voltage and current information of sampling and control command or the state information of monitoring in real time whether motor satisfies entry condition, does not enter the shutdown processing procedure if do not satisfy.
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| CN110816560A (en) * | 2019-11-20 | 2020-02-21 | 株洲中车时代软件技术有限公司 | Control method and device for traction inverter of rail transit vehicle |
| CN110875709A (en) * | 2018-08-30 | 2020-03-10 | 比亚迪股份有限公司 | Protection method and system of inverter and vehicle |
| CN111756305A (en) * | 2020-06-21 | 2020-10-09 | 中车永济电机有限公司 | Locomotive auxiliary converter topological structure |
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