CN102555840A - Coasting over-voltage split-phase pulse blocking and pulse unblocking method for alternating-current transmission system - Google Patents
Coasting over-voltage split-phase pulse blocking and pulse unblocking method for alternating-current transmission system Download PDFInfo
- Publication number
- CN102555840A CN102555840A CN2012100538513A CN201210053851A CN102555840A CN 102555840 A CN102555840 A CN 102555840A CN 2012100538513 A CN2012100538513 A CN 2012100538513A CN 201210053851 A CN201210053851 A CN 201210053851A CN 102555840 A CN102555840 A CN 102555840A
- Authority
- CN
- China
- Prior art keywords
- pulse
- phase
- splitting
- traction
- blocking
- 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.)
- Pending
Links
Images
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a coasting over-voltage split-phase pulse blocking and pulse unblocking method for an alternating-current transmission system. After the alternating-current transmission system receives electric split-phase entry signals and confirms the signals, a control system controls torque instruction voltage or reference torque of a traction converter to drop to zero according to a certain slope, and then blocking pulse instructions are sent out to block the traction converter. After pulse blocking is relieved by a train through electric phase splitting, the control system controls the torque instruction voltage or reference torque of the traction converter to rise to a calculation value of the control system, and then turns to normal operating conditions. Using the method can avoid defective impulses generated during blocking of the converter by the blocking pulses, avoid high fluctuation of intermediate direct-current voltage of the traction converter in pulse unblocking, and improve performance of a traction transmission system.
Description
Technical field
The present invention relates to exchange the electric locomotive or the motor train unit control of transmission, especially adopt the electric locomotive of alternating-current actuating system or motor train unit coasting to cross electric phase-splitting control technology field.
Background technology
The method of the electric phase-splitting of electric locomotive (motor train unit) mistake has multiple, and early stage train speed is slower, adopts the electric phase-splitting of manual mistake usually, is provided with branch facies marker conductor driver at phase-separating section and crosses electric phase-splitting operation.Before neutral section, the driver breaks off ancillary system earlier with draft stage potential drop to 0, and the line circuit breaker with the former limit of traction transformer breaks off again, makes locomotive not charged through neutral section.After locomotive gets into the service area of next phase feeding section, close line circuit breaker and start ancillary system, progressively recover the traction level of driver.It is big manually to cross electric phase-splitting driver labour intensity; Must cut off the power supply by the driver at undue phase time; If do not cut off the power supply electric phase-splitting, meeting is traction net and the arcing of pantograph generation over voltage when getting into neutral section, burns out traction net and pantograph; Even major accident such as line to line fault, along with this problem that improves constantly of train running speed will be more outstanding.
At present, electric locomotive (motor train unit) adopts the automatic electricity of crossing to divide phase method usually, mainly contains two kinds of methods: ground is automatic crosses automatic phase-splitting on phase-splitting and the car.Crossing electric phase-splitting on the car is the electric phase-splitting mode of a kind of common mistake, and wherein to cross electric phase-splitting be again a kind of mode that electric phase-splitting is often adopted of crossing on the car in coasting.Fig. 1 has provided the electric phase-splitting of a kind of mistake ground inductor and has buried scheme drawing underground, left and rightly on the circuit that separates about 60m place, phase region two ends respectively buries a magnet, and phase-separating section is four blocks of magnet of needs only, during train operation, have only the approaching signal of a side to work.The train head is respectively established 1 inductor about near the rail place, and when train head during through magnet, inductor receives signal, is sent the approaching signal of 110V level again to the train microprocessor control system by inductor.The train microprocessor control system postpones certain hour after receiving this approaching signal, send to inductor that 20ms is wide, the reset signal of 110V level, and inductor is resetted, and approaching signal disappears thereupon.The time that is postponed is used to accomplish the affirmation to approaching signal, and leaves certain allowance.Fig. 2 is the sequential chart of overconfidence number.
Adopt coasting to cross electricity and divide phase time, must solve the pulse blocking of traction convertor and remove the pulse blocking problem.Fig. 3 has provided the structural representation of alternating-current actuating system; Electric locomotive or motor train unit are got stream through pantograph from the interchange contact system of 25kV; Through behind the relevant devices such as line circuit breaker by the traction transformer step-down; Behind the pulse rectifier rectification, become vdc, vdc is that three plase alternating current supplies traction electric machine to use by the traction invertor inversion again.The control unit of traction convertor (pulsed rectifier, intermediate dc link, traction invertor close and be called traction convertor) is responsible for collection, the calculating of signal, and calculates the binistor that sends corresponding driving pulsed drive current transformer according to control policy.Pulse blocking is a kind of common protected mode of alternating-current actuating system that adopts frequency conversion drive, and more commonly break pulse blocks and the short circuit pulse blockade.Because the special topological structure of current transformer adopts different pulse to block and can produce different influences to motor and current transformer.For traction convertor; The pulse blocking that electricity branch phase time is crossed in coasting is a kind of normal control; Need when the traction electric machine high speed revolution, block the pulse of traction invertor; Cut off the power supply of traction electric machine, need take suitable pulse blocking mode this moment in the suitable moment, avoids middle vdc and traction electric machine torque shock ends; After electric phase-splitting; Because train is a large inertia load; Therefore also must guarantee the again input problem of traction electric machine when high-speed cruising when after through electric phase-splitting, removing pulse blocking, and the fluctuation of generation torque shock ends and middle dc voltage when as far as possible reducing to remove pulse blocking.
Summary of the invention
Crossing electric phase-splitting in view of coasting has the problems referred to above to need to solve, and the object of the invention will provide a cover solution exactly, to overcome the above shortcoming of prior art.
The object of the invention is realized through following means.
The alternating-current actuating system coasting is crossed electric phase-splitting pulse blocking and is removed pulse blocking method; In the traction convertor of forming by pulsed rectifier, intermediate dc link, control unit, traction invertor; Electric locomotive becomes vdc from the interchange contact system of 25kV through pantograph behind the pulse rectifier rectification, be that three plase alternating current supplies traction electric machine to use by the traction invertor inversion again; Control unit is responsible for collection, the calculating of signal, and calculates the binistor that sends corresponding driving pulsed drive current transformer according to control policy.Train control system control unit control traction invertor adopts following sequence control strategy: control unit receives after the ground surface over-current phase-splitting gets into electric phase-splitting approaching signal and acknowledgment signal; Torque instruction voltage drops to zero by preset slope k 1, sends the pulse blocking instruction then; Receive the ground surface over-current phase-splitting go out electric split phase signal and acknowledgment signal through electric phase-splitting after; Remove the pulse blocking of traction convertor; And the torque instruction voltage of control traction invertor changes nominal situation over to subsequently according to presetting the computing value that slope k 2 rises to control system.
The alternating-current actuating system coasting through electric phase-splitting after; Receive after the ground surface over-current phase-splitting goes out electric split phase signal and acknowledgment signal in train control system; When carrying out pulse blocking that associative operation removes traction convertor subsequently; Torque instruction voltage (vector control system)/torque reference (for direct Torque Control) that control system should be controlled traction invertor rises to the computing value of control system according to certain slope, changes nominal situation subsequently over to.
During locking pulse, adopt complete zero pulse to block for high level actv. control system.Adopt method of the present invention, the bad impulsion that produces in the time of can avoiding locking pulse to block current transformer avoids the traction convertor middle dc voltage removing pulse blocking generation fluctuation, improves the performance of traction drive.
Description of drawings:
Accompanying drawing 1 is that the electric phase-splitting of a kind of mistake ground inductor is buried scheme drawing underground.
Accompanying drawing 2 is approaching signal and reset signal sequential chart.
Accompanying drawing 3 is traction convertor structural representations.
Accompanying drawing 4 is principle of vector control scheme drawings.
Accompanying drawing 5 is direct torque control theory figure.
The specific embodiment
Below in conjunction with accompanying drawing enforcement of the present invention is done further to describe.
Adopt coasting to cross the train of electric phase-splitting, receive after the ground surface over-current phase-splitting gets into electric phase-splitting approaching signal and acknowledgment signal, earlier train is demoted, simultaneously control system is adopted following control policy in train control system:
1) for (ψ among the figure of the vector control system shown in accompanying drawing 4
*,
Be respectively magnetic flux, rotary speed setting value, ψ, ω
rBe respectively magnetic flux, rotary speed actual value, i
SM, i
STBe respectively magnetic flux, torque current actual value, u
SM, u
STBe respectively magnetic flux, torque voltage instruction value,
Be flux angle, u
DcBe the middle dc voltage actual value), control system controlling torque command voltage u
STDescend (the experience value is 1500V/s) according to certain slope, send blocking instruction, the drive pulse of locking pulse rectifier and traction invertor after dropping to zero.
2) for (ψ among the figure of the direct Torque Control shown in accompanying drawing 5
*,
Be respectively magnetic flux, rotating speed, torque given value, ψ, ω
r, T
eBe respectively magnetic flux, rotating speed, torque actual value,
Be flux angle, u
DcBe the middle dc voltage actual value), control system control is with reference to given torque
Descend according to certain slope, send blocking instruction, the drive pulse of locking pulse rectifier and traction invertor after dropping to zero.
Control system adopts the pulse blocking of [0000] for high actv. two level pulse rectifiers after sending the pulse blocking instruction, and inverter adopts [000000]; Adopt [00000000] for three level pulse rectifiers, inverter adopts [000000000000].For for low effective drive pulse, principle is identical.
The alternating-current actuating system coasting through electric phase-splitting after; Receive after the ground surface over-current phase-splitting goes out electric split phase signal and acknowledgment signal in train control system; When carrying out pulse blocking that associative operation removes traction convertor subsequently; Torque instruction voltage (vector control system)/torque reference (for direct Torque Control) that control system should be controlled traction invertor rises to the computing value of control system according to certain slope (the experience value is 1500V/s), changes nominal situation subsequently over to.
Adopt method of the present invention, the bad impulsion that produces in the time of can avoiding locking pulse to block current transformer avoids the traction convertor middle dc voltage removing pulse blocking generation fluctuation, improves the performance of traction drive.
Under the situation that does not break away from the spirit and scope of the present invention; Those skilled in the art all should drop within protection scope of the present invention its all conspicuous modification or variation about form and details of carrying out under the situation that does not depart from scope of the present invention and spirit.
Claims (3)
1. the alternating-current actuating system coasting is crossed electric phase-splitting pulse blocking and is removed pulse blocking method; In the traction convertor of forming by pulsed rectifier, intermediate dc link, control unit, traction invertor; Electric locomotive becomes vdc from the interchange contact system of 25kV through pantograph behind the pulse rectifier rectification, be that three plase alternating current supplies traction electric machine to use by the traction invertor inversion again; Control unit is responsible for collection, the calculating of signal, and calculates the binistor that sends corresponding driving pulsed drive current transformer according to control policy; It is characterized in that; Train control system control unit control traction invertor adopts following sequence control strategy: control unit receives after the ground surface over-current phase-splitting gets into electric phase-splitting approaching signal and acknowledgment signal; Torque instruction voltage drops to zero by preset slope k 1, sends the pulse blocking instruction then; Receive the ground surface over-current phase-splitting go out electric split phase signal and acknowledgment signal through electric phase-splitting after; Remove the pulse blocking of traction convertor; And the torque instruction voltage of control traction invertor changes nominal situation over to subsequently according to presetting the computing value that slope k 2 rises to control system.
2. said alternating-current actuating system coasting is crossed electric phase-splitting pulse blocking and is removed pulse blocking method according to claim 1, it is characterized in that, said torque instruction voltage adopts torque instruction voltage for vector control system; Adopt torque reference for direct Torque Control.
3. said alternating-current actuating system coasting is crossed electric phase-splitting pulse blocking and is removed pulse blocking method according to claim 1, it is characterized in that the experience value of said preset slope k 1 is 1500V/s; The experience value of said preset slope k 2 is 1500V/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100538513A CN102555840A (en) | 2012-03-05 | 2012-03-05 | Coasting over-voltage split-phase pulse blocking and pulse unblocking method for alternating-current transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100538513A CN102555840A (en) | 2012-03-05 | 2012-03-05 | Coasting over-voltage split-phase pulse blocking and pulse unblocking method for alternating-current transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102555840A true CN102555840A (en) | 2012-07-11 |
Family
ID=46402917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100538513A Pending CN102555840A (en) | 2012-03-05 | 2012-03-05 | Coasting over-voltage split-phase pulse blocking and pulse unblocking method for alternating-current transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102555840A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904271A (en) * | 2012-09-27 | 2013-01-30 | 株洲变流技术国家工程研究中心有限公司 | Traction contact system |
| CN106379201A (en) * | 2016-10-12 | 2017-02-08 | 西南交通大学 | Current switching control method based on cascaded multilevel over-electric phase break system |
| 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 |
| CN111055730A (en) * | 2020-01-02 | 2020-04-24 | 中车青岛四方车辆研究所有限公司 | No-area detection and control method for rail transit vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62157833A (en) * | 1985-12-28 | 1987-07-13 | Toshiba Corp | Feeder for alternating current electrified electric railroad |
| WO1997047493A1 (en) * | 1996-06-13 | 1997-12-18 | Siemens Aktiengesellschaft | Section switching process for railway systems with a long stator linear motor |
| CN1466255A (en) * | 2002-06-29 | 2004-01-07 | 深圳市中兴通讯股份有限公司 | Output overcurrent and short circuit protector for high power contravariant equipment |
| CN201077368Y (en) * | 2007-10-22 | 2008-06-25 | 西南交通大学 | Electrified railroad homophase traction power supply system |
| CN201156671Y (en) * | 2007-12-21 | 2008-11-26 | 中国西电电气股份有限公司 | Valve based electronic control apparatus |
| CN101434206A (en) * | 2008-12-24 | 2009-05-20 | 西南交通大学 | Automatic power-passing phase-splitting apparatus of AC drive electric locomotive |
-
2012
- 2012-03-05 CN CN2012100538513A patent/CN102555840A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62157833A (en) * | 1985-12-28 | 1987-07-13 | Toshiba Corp | Feeder for alternating current electrified electric railroad |
| WO1997047493A1 (en) * | 1996-06-13 | 1997-12-18 | Siemens Aktiengesellschaft | Section switching process for railway systems with a long stator linear motor |
| CN1466255A (en) * | 2002-06-29 | 2004-01-07 | 深圳市中兴通讯股份有限公司 | Output overcurrent and short circuit protector for high power contravariant equipment |
| CN201077368Y (en) * | 2007-10-22 | 2008-06-25 | 西南交通大学 | Electrified railroad homophase traction power supply system |
| CN201156671Y (en) * | 2007-12-21 | 2008-11-26 | 中国西电电气股份有限公司 | Valve based electronic control apparatus |
| CN101434206A (en) * | 2008-12-24 | 2009-05-20 | 西南交通大学 | Automatic power-passing phase-splitting apparatus of AC drive electric locomotive |
Non-Patent Citations (4)
| Title |
|---|
| 《机车电传动》 19991110 严云升 "电力机车自动过分相方案的探讨" 第1-3、７页 1-3 , 第6期 * |
| 《机车电传动》 20041110 严云升 "电力机车和电动车组自动过分相方案的发展方向" 第7-10页 1-3 , 第6期 * |
| 严云升: ""电力机车和电动车组自动过分相方案的发展方向"", 《机车电传动》, no. 6, 10 November 2004 (2004-11-10), pages 7 - 10 * |
| 严云升: ""电力机车自动过分相方案的探讨"", 《机车电传动》, no. 6, 10 November 1999 (1999-11-10), pages 1 - 3 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904271A (en) * | 2012-09-27 | 2013-01-30 | 株洲变流技术国家工程研究中心有限公司 | Traction contact system |
| CN102904271B (en) * | 2012-09-27 | 2016-03-30 | 株洲变流技术国家工程研究中心有限公司 | A kind of traction contact line |
| CN106379201A (en) * | 2016-10-12 | 2017-02-08 | 西南交通大学 | Current switching control method based on cascaded multilevel over-electric phase break system |
| 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 |
| CN111055730A (en) * | 2020-01-02 | 2020-04-24 | 中车青岛四方车辆研究所有限公司 | No-area detection and control method for rail transit vehicle |
| CN111055730B (en) * | 2020-01-02 | 2021-04-13 | 中车青岛四方车辆研究所有限公司 | No-area detection and control method for rail transit vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103818271B (en) | A kind of ground surface over-current neutral section based on cascade connection multi-level | |
| CN103863141B (en) | A kind of control method based on cascade connection multi-level ground surface over-current neutral section | |
| JP6813674B2 (en) | Automatic phase separation passage system for section posts of electrified railways and its control method | |
| CN102582465A (en) | Method for keeping intermediate direct-current voltage of regeneration passing neutral section stable | |
| CN101434206B (en) | Automatic power-passing phase-splitting method of AC drive electric locomotive | |
| CN105313723B (en) | A kind of electric EMU automatically by phase-separating section control method | |
| EP2673160B1 (en) | System for charging an energy store, and method for operating the charging system | |
| CN102555840A (en) | Coasting over-voltage split-phase pulse blocking and pulse unblocking method for alternating-current transmission system | |
| CN103231668B (en) | Self-check type auto-passing neutral section system and auto-passing neutral section method of electrified railway | |
| EP2673860B1 (en) | Charging an energy-storing arrangement | |
| CN102343835A (en) | Method for realizing electric auto-passing neutral section of train by utilizing power electronic switching device | |
| CN105292141A (en) | Automatic passing neutral section control system and method for electric motor train unit | |
| EP2646275A1 (en) | Method for charging a traction battery | |
| DE102010039886A1 (en) | Drive system for a battery-operated vehicle | |
| EP3023291A1 (en) | Converter system for electrical drive mechanism for a rail vehicle | |
| CN103057439A (en) | Automatic switching passing neutral section system of electrified railway star damping switch | |
| CN105015366A (en) | Phase switching method for rapidly adjusting phase of reference voltage of inverter | |
| WO2021072928A1 (en) | Neutral zone passing control method and control system for train | |
| CN107834864B (en) | A kind of combined power supply device direct Power Control method | |
| CN105691245A (en) | No-impact partition phase conversion system and method for electric locomotive | |
| CN104333276B (en) | Torque ripple two-level inhibition method of three-phase switched reluctance motor | |
| CN201685724U (en) | Novel ground overcurrent phase-split control device | |
| CN116424163A (en) | Railway track engineering vehicle operation passing neutral section control method and control system | |
| DE102019210770B4 (en) | Operating a rail vehicle when passing separation points in a power supply external to the vehicle | |
| CN101604841B (en) | Arc extinguishing control device for contact net |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |