CN104796031B - For a kind of control method of new control system of track traffic subordinate inverter - Google Patents
For a kind of control method of new control system of track traffic subordinate inverter Download PDFInfo
- Publication number
- CN104796031B CN104796031B CN201510226812.2A CN201510226812A CN104796031B CN 104796031 B CN104796031 B CN 104796031B CN 201510226812 A CN201510226812 A CN 201510226812A CN 104796031 B CN104796031 B CN 104796031B
- Authority
- CN
- China
- Prior art keywords
- voltage
- feed
- differential
- module
- busbar
- Prior art date
- 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.)
- Expired - Fee Related
Links
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
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without 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
- H02M7/537—Conversion of dc power input into ac power output without 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, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without 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, e.g. single switched pulse inverters in a bridge configuration
-
- 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
- H02M1/12—Arrangements for reducing harmonics from ac input or output
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
For a kind of new control system and method for track traffic subordinate inverter, the system includes busbar voltage differential feed-forward module before output voltage instantaneous value feedback module, filter capacitor electric voltage feed forward module and diode；Its control method is：1st, it is stable by output voltage instantaneous value feedback module controlled output voltage effective value；2nd, impact output voltage caused by filter capacitor electric voltage feed forward module suppression busbar voltage fluctuation；3rd, the dynamic responding speed of filter capacitor electric voltage feed forward module is improved by busbar voltage differential feed-forward module before diode；4th, the feedback modulation that busbar voltage differential feed-forward module before output voltage instantaneous value feedback module, filter capacitor electric voltage feed forward module and diode is exported respectively is compared into ao, feedforward modulation ratio adcWith differential feedforward modulation ratio adSummation obtains total modulation ratio；The present invention is feedovered based on MULTIPLE COMPOSITE differential, to improve the ability of the anti-busbar voltage change of subordinate inverter, it is ensured that subordinate inverter output voltage stabilization, reliability.
Description
Technical field
The present invention relates to subordinate inverter control technology field, specifically propose a kind of for track traffic subordinate inverter
A kind of new control system and method.
Background technology
Track traffic subordinate inverter is the main power supply of the vehicles such as subway, motor-car, car, by the device,
DC bus-bar voltage can be reverse into the three-phase alternating current of 380V/50Hz, realize (air-conditioning, cooling being loaded to vehicle assisted system
Blower fan, air compressor etc.) power supply.Core of the subordinate inverter control system as subordinate inverter, to subordinate inverter
Performance and reliability play an important role.With the continuous development of information technology, high-performance, high reliability subordinate inverter
Research becomes one of current Electrified Transmission field focus of attention.
Track traffic subordinate inverter as the fluctuation of railway distribution net is larger, has direct current female in actual motion
Line voltage falls suddenly, raise suddenly or the busbar voltage change such as cyclic fluctuation situation so that the performance of subordinate inverter
Tend not to meet system requirements.Therefore design a kind of new control method so as to the busbar voltage change of energy quick response, from
And suppressing busbar voltage to change the impact caused to output voltage, this has weight to the performance and reliability for improving subordinate inverter
Want meaning.
The content of the invention
For the impact for suppressing busbar voltage change to cause output voltage, it is an object of the invention to provide one kind is used for
A kind of new control system of track traffic subordinate inverter and method, are feedovered based on MULTIPLE COMPOSITE differential, inverse to improve auxiliary
Become the ability of the anti-busbar voltage change of device, it is ensured that subordinate inverter output voltage stabilization, reliability.
To reach above-mentioned purpose, the technical solution adopted in the present invention is：
For a kind of new control system of track traffic subordinate inverter, including output voltage instantaneous value feedback module,
Busbar voltage differential feed-forward module before filter capacitor electric voltage feed forward module and diode；The output voltage instantaneous value feedback module
Controlled output voltage effective value is stable；Filter capacitor electric voltage feed forward module timely responds to the output voltage that busbar voltage change causes
Change；Before diode, busbar voltage differential feed-forward module is done differential feedforward to make up filter capacitor electric voltage feed forward using busbar voltage
The deficiency of module.
The control method of a kind of new control system for track traffic subordinate inverter described above, including following step
Suddenly：
Step 1：It is stable by output voltage instantaneous value feedback module controlled output voltage effective value：
First, believe using any 2 tunnel subordinate inverter output line voltage as the input of output voltage instantaneous value feedback module
Number, input signal Jing Park conversion and amplitude are calculated, the numerical value reflection output line voltage virtual value for obtaining, computing formula such as formula
(1) and shown in formula (2)；
Wherein, vaAnd vbIt is two-way subordinate inverter output line voltage；vαAnd vβIt is that three-phase output line voltage is static in two-phase
Component in coordinate system；vmIt is output line voltage mean effective value；
Then, by the output line voltage virtual value v for obtainingmWith given output line voltage virtual value vrefMake comparisons, i.e. ve=
vref-vm, wherein veFor error voltage；
Finally, by error voltage veSegmented PID regulations obtain feedback modulation and compare ao, PID is i.e. according to error voltage v for segmentatione
Size, using different PI parameters：Work as veMore than setting comparison voltage vthrWhen, using the PI parameters that P is larger；Work as veLess than setting
Determine comparison voltage vthrWhen, using the less PI parameters of P, the feedback dynamic responding speed of system can be improved using segmentation PID；
Output voltage instantaneous value feedback module compares a by feedback modulationoCan quick regulation output voltage virtual value, make
Which keeps up with given output line voltage virtual value vref, obtain stable output voltage virtual value；
Step 2：Impact output voltage caused by filter capacitor electric voltage feed forward module suppression busbar voltage fluctuation：
If directly by filter capacitor voltage VcapAs feedforward input, due to quick frequent fluctuation and the load of busbar voltage
Change, easily so that concussion occurs in the output of subordinate inverter, while the fluctuation of busbar voltage can be caused；Filtering is made first for this
Capacitance voltage VcapThrough DC filtering, feed forward operation input voltage V ' is obtainedcap, then by feed forward operation input voltage V 'capJing
Formula (3) calculates feedforward modulation ratio adc；
adc=kdc/V′cap (3)
Wherein, kdcFor feed-forward coefficients, shown in its computing formula such as formula (4).
Wherein, VabIt is the alternate line voltage virtual value of subordinate inverter output a, b；
Filter capacitor electric voltage feed forward module is by modulation ratio a that feedoversdcOutput voltage is adjusted, makes output voltage not by bus electricity
Pressure influence of fluctuations：When busbar voltage is raised, feedover modulation ratio adcReduce；When busbar voltage is reduced, feedover modulation ratio adcIncrease
Plus, so that output voltage keeps constant；
Step 3：The dynamic of filter capacitor electric voltage feed forward module is improved by busbar voltage differential feed-forward module before diode
Response speed：
Busbar voltage V before diode is taken firstdcWith feed forward operation input voltage V 'capDiffer from, and make differential fortune to difference
Calculate, i.e. ((V 'cap-Vdc)/T=Vd, wherein T is the sampling period；VdIt is differential feed forward operation input signal；Then, by before differential
Feedback computing input signal VdJing formula (5) are calculated differential feedforward modulation ratio ad；
ad=Vd/kdc_d (5)
Wherein, kdc_dFor differential feed-forward coefficients；Before assuming diode, busbar voltage fluctuation range is (Vmin,Vmax), correspondence
Feedforward modulation ratio scope be (adc_min,adc_max), busbar voltage change and feedforward are modulated in the range of busbar voltage fluctuation
Linearize than the relation between change, thus, calculate differential feed-forward coefficients, shown in computing formula such as formula (6)；
Before diode, busbar voltage differential feed-forward module is by differential feedforward modulation ratio adCompensation filter capacitance voltage feedovers
The dynamic response time delay that module is caused due to filtering algorithm, so as to improve feedforward dynamic responding speed；
Step 4：By busbar voltage before output voltage instantaneous value feedback module, filter capacitor electric voltage feed forward module and diode
The feedback modulation that differential feed-forward module is exported respectively compares ao, feedforward modulation ratio adcWith differential feedforward modulation ratio adSummation is always adjusted
Than a, total modulation ratio a inputs to SPWM wave producers through amplitude limit to system, generates the PWM ripples that 6 tunnels control inverter bridge IGBT break-make.
Compare with existing, the invention has the advantages that：
1) due to before filter capacitor electric voltage feed forward module and diode busbar voltage differential feed-forward module quickly can have
The impact that the busbar voltage fluctuation that effect ground suppresses is caused to output voltage, therefore, the ability of the anti-busbar voltage change of system substantially increases
By force, improve the performance and reliability of subordinate inverter；
2) as output voltage instantaneous value feedback module can follow given output line with quick regulation output voltage virtual value
The feedback dynamic responding speed that PID can improve system is segmented in voltage effective value, and the module, therefore, subordinate inverter
The sinusoidal waveform of output voltage is stable, harmonic content is low, Ability of Resisting Disturbance is strong, dynamic response is fast；
3) carried subordinate inverter control system and method are simple, it is easy to canbe used on line.
Description of the drawings
Main circuits of the Fig. 1 for subway subordinate inverter.
Fig. 2 is the subway subordinate inverter control system block diagram feedovered based on MULTIPLE COMPOSITE differential.
Fig. 3 is output voltage instantaneous value feedback module theory diagram.
Fig. 4 is segmentation PID theory diagrams
Fig. 5 is filter capacitor electric voltage feed forward module principle block diagram.
Fig. 6 is busbar voltage differential feed-forward module theory diagram before diode.
Matlab/Simulink simulation models of the Fig. 7 for subway subordinate inverter.
Fig. 8 is subordinate inverter three-phase output line voltage waveform.
Fig. 9 is a phase output line voltage virtual value waveform.
Figure 10 is subordinate inverter three-phase output current phase waveform.
Figure 11 is a phase output current phase virtual value waveform.
FFT frequency analysis results of the Figure 12 for one phase output line voltage waveform of subordinate inverter.
Figure 13 is dynamic response waveform of the subordinate inverter when DC bus-bar voltage fluctuates when not adding differential to feedover.
Figure 14 is dynamic response waveform of the subordinate inverter when DC bus-bar voltage fluctuates when adding differential to feedover.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is described in further detail.
A kind of new control system of the present invention for track traffic subordinate inverter, including output voltage instantaneous value feedback
Busbar voltage differential feed-forward module before module, filter capacitor electric voltage feed forward module and diode；The output voltage instantaneous value is anti-
Feedback module controlled output voltage effective value is stable；The response speed of its feedback is faster than output voltage virtual value feedback, and has more
Good steady-state behaviour.Filter capacitor electric voltage feed forward module timely responds to the output voltage change that busbar voltage change causes；But by
The DC filtering algorithm used in filter capacitor electric voltage feed forward, this prevents voltage feedforward control from reflecting dc bus in time
Voltage change trend, it is impossible to good inhibition is played in the big ups and downs on a large scale to busbar voltage, is that this introduces two again
Busbar voltage differential feedforward before pole pipe, before diode, busbar voltage differential feed-forward module is done differential using busbar voltage and is feedovered come more
Mend the deficiency of filter capacitor electric voltage feed forward module.The bus end of subway subordinate inverter is provided with a reverse blocking diode pipe,
Which causes filter capacitor voltage and true inlet wire busbar voltage different, thus using busbar voltage differential before diode before
Feedback can effectively improve the speed of subordinate inverter response busbar voltage change, to ensure stablizing for subordinate inverter output voltage
Property.
Below by taking a 200kVA subway subordinate inverters as an example, design its control system, and give simulation model and its
Simulation result.
The main circuit of 200kVA subway subordinate inverters is as shown in figure 1, auxiliary to control this using the control system of the present invention
When helping inverter, it is necessary first to gather busbar voltage before two-way output line voltage, filter capacitor voltage and diode, as control
The input signal of system.The control system of design is as shown in Fig. 2 control system includes output voltage instantaneous value feedback module, filter
Busbar voltage differential feed-forward module before ripple capacitance voltage feed-forward module and diode, each module export feedback modulation respectively and compare ao、
Feedforward modulation ratio adcWith differential feedforward modulation ratio ad, three modulation ratio summations are obtained into total modulation ratio a, total modulation ratio a is through limit
Width, inputs to SPWM wave producers, generates the PWM ripple SI ... S6 that 6 tunnels control inverter bridge IGBT break-make.
Carry out by step with the control method of the subway subordinate inverter control system feedovered based on MULTIPLE COMPOSITE differential
Design.
Step 1：Stable, the output voltage instantaneous value by output voltage instantaneous value feedback module controlled output voltage effective value
The theory diagram of feedback module is as shown in figure 3, the module is obtained first by its 2 tunnel input signal Jing Park conversion and amplitude calculating
To the numerical value v of reflection output line voltage virtual valuem；Then by numerical value vmWith given output line voltage virtual value vrefMake comparisons, obtain
To error voltage ve；Finally by error voltage veSegmented PID process obtains feedback modulation and compares ao, wherein the principle frame of segmentation PID
Figure is as shown in figure 4, i.e. according to error voltage veSize, using different PI parameters, to improve the dynamic responding speed of system；
Step 2：Impact output voltage caused by filter capacitor electric voltage feed forward module suppression busbar voltage fluctuation, filter
The theory diagram of ripple capacitance voltage feed-forward module is as shown in figure 5, the module is inputted signal filtering capacitance voltage V firstcapJing
DC filtering is crossed, feed forward operation input voltage V ' is obtainedcap；Then feed-forward coefficients k are useddcDivided by V 'cap, obtain the modulation ratio that feedovers
adc；
Step 3：The dynamic of filter capacitor electric voltage feed forward module is improved by busbar voltage differential feed-forward module before diode
Response speed, before diode, the theory diagram of busbar voltage differential feed-forward module is as shown in fig. 6, the module is first by before diode
Busbar voltage VdcWith feed forward operation input voltage Vc′apDiffer from, and difference is differentiated, obtain being that differential feed forward operation is defeated
Enter signal Vd；Then use VdDivided by differential feed-forward coefficients kdc_d, obtain differential feedforward modulation ratio ad；
Step 4：The output feedback modulation that first three step is respectively obtained compares ao, feedforward modulation ratio adcAdjust with differential feedforward
System compares adIt is added, and inputs to SPWM modulating wave makers, obtains the PWM ripples that 6 tunnels control inverter bridge IGBT break-make.
The simulation model built in Matlab/Simulink simulation softwares is as shown in fig. 7, used subordinate inverter
Design parameter is as shown in table 1.Control system is built according to design procedure described above, and its key is the PI in feedback module
Parameter designing, feed-forward coefficients are calculated and differential feed-forward coefficients are calculated, and PI parameters are adjusted according to system, can be counted according to formula (4)
Feed-forward coefficients are calculated, differential feed-forward coefficients can be calculated according to formula (6).
Table 1
Static Simulation result is as shown in Fig. 8, Fig. 9, Figure 10, Figure 11 and Figure 12.Fig. 8 is subordinate inverter three-phase output line electricity
Corrugating, Fig. 9 are a wherein phase output line voltage virtual value waveforms, from Fig. 8 and Fig. 9, subordinate inverter stable state output electricity
Corrugating is stable, and stable state output line voltage steady-state value meets specified AC380 (1 ± 5%) V.Figure 10 is that subordinate inverter three-phase is defeated
Go out phase current waveform, Figure 11 is a wherein phase output current phase virtual value waveform, from Figure 10 and Figure 11, subordinate inverter
Astable output electrical current waveform stabilization.Figure 12 is the FFT frequency analysis results of one phase output line voltage waveform of subordinate inverter, by scheming
12 understand that harmonic wave of output voltage content is low, only 1.25%.
Dynamic Simulation Results as shown in Figure 13 and Figure 14, to not plus differential feedforward and add differential feedover two kinds in the case of,
Dynamic response of the subordinate inverter when DC bus-bar voltage changes is contrasted.Not plus differential feedover when, as shown in figure 13,
Output line voltage virtual value momentary fluctuation maximum off-rating 16.3%；When adding differential to feedover, as shown in figure 14, output
Line voltage virtual value momentary fluctuation maximum off-rating 7%.It can be seen that, before differential, energy regenerative significantly improves the anti-mother of subordinate inverter
The ability of line voltage change, it is ensured that output voltage stabilization, reliability.
Claims (1)
1. a kind of control method of new control system of track traffic subordinate inverter is used for, and the control system includes output
Busbar voltage differential feed-forward module before instantaneous voltage feedback module, filter capacitor electric voltage feed forward module and diode；It is described defeated
Go out instantaneous voltage feedback module controlled output voltage effective value stable；Filter capacitor electric voltage feed forward module timely responds to bus electricity
The output voltage change that buckling causes；Before diode busbar voltage differential feed-forward module using busbar voltage do differential feedforward come
Make up the deficiency of filter capacitor electric voltage feed forward module；It is characterized in that：The control method comprises the steps：
Step 1：It is stable by output voltage instantaneous value feedback module controlled output voltage effective value：
First, using any 2 tunnel subordinate inverter output line voltage as the input signal of output voltage instantaneous value feedback module, will
Input signal Jing Park is converted and amplitude is calculated, the numerical value that obtains reflection output line voltage virtual value, computing formula such as formula (1) and
Shown in formula (2)；
Wherein, vaAnd vbIt is two-way subordinate inverter output line voltage；vαAnd vβIt is three-phase output line voltage in two-phase static coordinate
Component in system；vmIt is output line voltage mean effective value；
Then, by the output line voltage virtual value v for obtainingmWith given output line voltage virtual value vrefMake comparisons, i.e. ve=vref-
vm, wherein veFor error voltage；
Finally, by error voltage veSegmented PID regulations obtain feedback modulation and compare ao, PID is i.e. according to error voltage v for segmentationeIt is big
It is little, using different PI parameters：Work as veMore than setting comparison voltage vthrWhen, using the PI parameters that P is larger；Work as veLess than setting ratio
Compared with voltage vthrWhen, using the less PI parameters of P, the feedback dynamic responding speed of system can be improved using segmentation PID；
Output voltage instantaneous value feedback module compares a by feedback modulationoBeing capable of quick regulation output voltage virtual value so as to keep up with
Given output line voltage virtual value vref, obtain stable output voltage virtual value；
Step 2：Impact output voltage caused by filter capacitor electric voltage feed forward module suppression busbar voltage fluctuation：
If directly by filter capacitor voltage VcapAs feedforward input, due to quick frequent fluctuation and the load change of busbar voltage,
Easily so that concussion occurs in the output of subordinate inverter, while the fluctuation of busbar voltage can be caused；Filter capacitor is made first for this
Voltage VcapThrough DC filtering, feed forward operation input voltage V ' is obtainedcap, then by feed forward operation input voltage V 'capJing formula
(3) calculate feedforward modulation ratio adc；
adc=kdc/V′cap (3)
Wherein, kdcFor feed-forward coefficients, shown in its computing formula such as formula (4)；
Wherein, VabIt is the alternate line voltage virtual value of subordinate inverter output a, b；
Filter capacitor electric voltage feed forward module is by modulation ratio a that feedoversdcOutput voltage is adjusted, makes output voltage not receive busbar voltage ripple
It is dynamic to affect：When busbar voltage is raised, feedover modulation ratio adcReduce；When busbar voltage is reduced, feedover modulation ratio adcIncrease,
So that output voltage keeps constant；
Step 3：The dynamic response of filter capacitor electric voltage feed forward module is improved by busbar voltage differential feed-forward module before diode
Speed：
Busbar voltage V before diode is taken firstdcWith feed forward operation input voltage V 'capDiffer from, and difference is differentiated, i.e.,
((V′cap-Vdc)/T=Vd, wherein T is the sampling period；VdIt is differential feed forward operation input signal；Then, by differential feed forward operation
Input signal VdJing formula (5) are calculated differential feedforward modulation ratio ad；
ad=Vd/kdc_d (5)
Wherein, kdc_dFor differential feed-forward coefficients；Before assuming diode, busbar voltage fluctuation range is (Vmin,Vmax), corresponding feedforward
Modulation ratio scope is (adc_min,adc_max), busbar voltage change is changed with feedforward modulation ratio in the range of busbar voltage fluctuation
Between relation linearisation, thus, calculate differential feed-forward coefficients, computing formula such as formula (6) is shown；
Before diode, busbar voltage differential feed-forward module is by differential feedforward modulation ratio adCompensation filter capacitance voltage feed-forward module by
In the dynamic response time delay that filtering algorithm is caused, so as to improve feedforward dynamic responding speed；
Step 4：By busbar voltage differential before output voltage instantaneous value feedback module, filter capacitor electric voltage feed forward module and diode
The feedback modulation that feed-forward module is exported respectively compares ao, feedforward modulation ratio adcWith differential feedforward modulation ratio adSummation obtains total modulation ratio
A, total modulation ratio a input to SPWM wave producers through amplitude limit, generate the PWM ripples that 6 tunnels control inverter bridge IGBT break-make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510226812.2A CN104796031B (en) | 2015-05-06 | 2015-05-06 | For a kind of control method of new control system of track traffic subordinate inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510226812.2A CN104796031B (en) | 2015-05-06 | 2015-05-06 | For a kind of control method of new control system of track traffic subordinate inverter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104796031A CN104796031A (en) | 2015-07-22 |
| CN104796031B true CN104796031B (en) | 2017-04-05 |
Family
ID=53560607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510226812.2A Expired - Fee Related CN104796031B (en) | 2015-05-06 | 2015-05-06 | For a kind of control method of new control system of track traffic subordinate inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104796031B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100310B (en) * | 2016-06-21 | 2019-03-26 | 广州智光电气股份有限公司 | A kind of method and apparatus optimizing voltage source converter soft start-up process |
| CN107546968A (en) * | 2017-10-10 | 2018-01-05 | 北京东标电子有限公司 | A kind of railway supply harmonic administers voltage-stabilizing system |
| CN110635704B (en) * | 2019-08-22 | 2021-08-24 | 江苏固德威电源科技股份有限公司 | Inverter bus voltage control method |
| CN112350557B (en) * | 2020-09-21 | 2022-05-24 | 珠海万力达电气自动化有限公司 | Control method for improving continuous operation capacity under impact current of railway purification power supply |
| WO2022082405A1 (en) * | 2020-10-20 | 2022-04-28 | 深圳大学 | Voltage control method, electronic device, and storage medium |
| CN113872462B (en) * | 2021-09-24 | 2024-05-03 | 深圳市伊力科电源有限公司 | Output voltage control method, system, single-phase inverter power supply and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201191804Y (en) * | 2008-03-31 | 2009-02-04 | 北京交通大学 | Auxiliary current transformer for automobile |
| CN102545266A (en) * | 2012-02-09 | 2012-07-04 | 浙江大学 | Method for controlling grid-connected inverter based on feed-forward compensation |
| CN103457494A (en) * | 2013-09-13 | 2013-12-18 | 青岛四方车辆研究所有限公司 | System and method for parallel control of auxiliary converters of motor train unit in the absence of interconnecting lines |
| CN104333253A (en) * | 2014-11-04 | 2015-02-04 | 阳光电源股份有限公司 | Off-grid inverter control method and system |
-
2015
- 2015-05-06 CN CN201510226812.2A patent/CN104796031B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201191804Y (en) * | 2008-03-31 | 2009-02-04 | 北京交通大学 | Auxiliary current transformer for automobile |
| CN102545266A (en) * | 2012-02-09 | 2012-07-04 | 浙江大学 | Method for controlling grid-connected inverter based on feed-forward compensation |
| CN103457494A (en) * | 2013-09-13 | 2013-12-18 | 青岛四方车辆研究所有限公司 | System and method for parallel control of auxiliary converters of motor train unit in the absence of interconnecting lines |
| CN104333253A (en) * | 2014-11-04 | 2015-02-04 | 阳光电源股份有限公司 | Off-grid inverter control method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104796031A (en) | 2015-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104796031B (en) | For a kind of control method of new control system of track traffic subordinate inverter | |
| Pan et al. | Voltage balancing control of diode-clamped multilevel rectifier/inverter systems | |
| Benzaquen et al. | Performance comparison of active rectifier control schemes in more electric aircraft applications | |
| Fei et al. | On-line fault diagnosis model for locomotive traction inverter based on wavelet transform and support vector machine | |
| CN103441502B (en) | Parallel single-phase H-bridge cascade type active electric power filter and method thereof | |
| CN103500998B (en) | The grid control method that adaptive feedforward compensates and micro-capacitance sensor islet operation micro voltage source controller | |
| CN112865063B (en) | Energy router, vehicle operation control method, and storage medium | |
| Chen et al. | Distributed auxiliary inverter of urban rail train—Load sharing control strategy under complicated operation condition | |
| CN104065077A (en) | Control method of series voltage compensation device | |
| CN105576646A (en) | Additional active signal-based balance control system and method for VSC-MTDC system | |
| CN102723908A (en) | Integrated control method of energy feedback frequency converter | |
| CN105449674A (en) | Generalized state space averaging modeling method for aviation 12-pulse inverter | |
| Yu et al. | Bifurcation analysis of cascaded H-bridge converter controlled by proportional resonant | |
| Khalid et al. | Comparative critical analysis of SAF using soft computing and conventional control techniques for high frequency (400 Hz) aircraft system | |
| Gholinezhad et al. | Analysis of cascaded H-bridge multilevel inverter in DTC-SVM induction motor drive for FCEV | |
| CN113162045A (en) | Inverter control method and device containing nonlinear load island microgrid harmonic suppression | |
| CN102623996B (en) | Active power filter closed loop control method based on decoupling resonance regulator array | |
| Zhang et al. | VCT-AOC comprehensive method to suppress high-frequency resonance and low-frequency oscillation in railway traction power supply system | |
| CN103441728A (en) | Controlling system and controlling method for IGBT type cascade speed control system active power filter | |
| WO2014203373A1 (en) | Inverter control apparatus and inverter control method | |
| CN109193697B (en) | High-speed rail low-frequency oscillation suppression method based on state observer model prediction control | |
| Miyatake et al. | Optimal speed control of a train with on-board energy storage for minimum energy consumption in catenary free operation | |
| CN103293965A (en) | Backstepping control method of active power filter | |
| Chang et al. | Study of the control technique of the voltage bus conditioner for a DC power distribution system with multiple parallel loads in the electrical vehicle | |
| Alqarni | Improved control strategy for 4 WD electric vehicle using direct torque control technique with space vector modulation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170405 Termination date: 20200506 |