CN101016033A - Overvoltage protection method and device for trolley bus - Google Patents
Overvoltage protection method and device for trolley bus Download PDFInfo
- Publication number
- CN101016033A CN101016033A CNA2007100342615A CN200710034261A CN101016033A CN 101016033 A CN101016033 A CN 101016033A CN A2007100342615 A CNA2007100342615 A CN A2007100342615A CN 200710034261 A CN200710034261 A CN 200710034261A CN 101016033 A CN101016033 A CN 101016033A
- Authority
- CN
- China
- Prior art keywords
- protection
- copped wave
- control system
- power circuit
- electric car
- 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.)
- Granted
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
- Inverter Devices (AREA)
Abstract
The invention relates to a non-track electric vehicle over-potential protecting method and relative device, which arranges a composite electric vehicle over-potential protector in present protecting circuit, that uses a protective lock and a chopper control to protect, and uses brake chopper, hardware controlled chopper and protective lock to realize three-stage over-potential protection. The first stage is brake chopper protection, the second stage is hardware controlled chopper protection and the third stage is protective lock protection. The electric vehicle over-potential protective main circuit is connected with a chopper tube controlled by an inverter control system in the main circuit, while the cathode of the chopper tube is serially connected with a brake resistance, and the inverter control system and the anode of chopper tube are serially connected with a protective lock control system serially connected on the anode circuit between a potential sensitive resistance and a capacitor.
Description
Technical field
The present invention is a kind of circuit control method and device, is a kind of method and device of overvoltage protection specifically, refers in particular to a kind of method and device of trackless trolley car overvoltage protection.
Technical background
Trackless trolley car is as urban public traffic vehicles; not having exhaust and low noise during its biggest advantage pollutes; but under the stormy weather condition; overvoltage can appear in the aerial wire of trackless trolley car; in this case; the electronics package of trackless trolley car must be able to be protected and unaffected, and vehicle can't normally move otherwise the electronics package of trackless trolley car will be seriously damaged.Existing over-voltage protection technique employing usually carries out the over voltage inhibition in the mode that front end adds pressure-sensitive resistance and feed(er) reactor.This mode exists certain defective and deficiency, and mainly show following 2 points: there is certain dispersiveness in the voltage operating value of (1) pizo-resistance, and its parameter is selected can not be too low, often will be higher than to drive the nominal voltage that current transformer supports electric capacity.If overvoltage does not reach the operating value of pizo-resistance but the time length long enough supports the voltage that electric capacity can bear by still surpassing current transformer behind the feed(er) reactor, cause electric capacity to puncture, produce than major break down and destruction.(2) pizo-resistance all has the certain capacity restriction, if if the overvoltage energy is enough big, just might be with pizo-resistance scaling loss and open circuit, and this is that pizo-resistance has just lost the overvoltage absorption power, causes the subsequent parts overvoltage.Therefore, the safer method of a kind of trackless trolley car overvoltage protection of necessary exploitation.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art, and a kind of novel trackless trolley car over-voltage protection method is provided, and this method can further expand defencive function on the basis of existing electric car over-voltage protection technology, and promotes the overvoltage protection ability of electric car.
Another object of the present invention is to provide a kind of device of realizing said method.
Purpose of the present invention is achieved by following technical proposals: in existing electric car overvoltage crowbar; be provided with one and block the compound electric car over-pressure safety device of finishing protection with copped wave control jointly, and block by braking copped wave, hardware controls copped wave and protection and to carry out 3 grades of electric car overvoltage protections by protection.
Described first order protection is braking copped wave protection.Braking copped wave protection is when the inverter side vdc is elevated to DC720V-725V, is worked by software control copped wave, utilizes braking resistor to release energy, and with the inverter side dc voltage stability at DC720V-725V.
The protection of the described second stage is hardware controls copped wave protection.Because software control copped wave has certain time-delay, hardware controls copped wave protection is when voltage raises fast, utilizes the hardware voltage comparator circuit, when the inverter side vdc is elevated to DC725V-730V, directly opens the copped wave pipe and carries out energy release.
The described third stage blocks protection for protection.It is when the inverter side vdc is elevated to the DC780V left and right sides that protection is blocked in protection, blocks the inverter pulse, and disconnects charging contactor and main contactor.When carrying out third stage protection blockade, do not influence copped wave control.
A kind of electric car over-pressure safety device according to said method is: be connected to the copped wave pipe in electric car overvoltage protection power circuit, the copped wave pipe is controlled by the inverter control system that is attempted by in the electric car overvoltage protection power circuit; Negative pole end at the copped wave pipe is serially connected with braking resistor; The anodal copped wave pipe of inverter control system and copped wave pipe also is serially connected with the tamper seal lock control system in electric car overvoltage protection power circuit, on the cathode circuit between tamper seal lock control system serial connection pizo-resistance and the electric capacity.
The invention has the advantages that; this technology is under the prerequisite that does not increase electric car car load equipment; improved the over voltage ability to bear of vehicle; strengthened the over-voltage protection function of vehicle; compared with the prior art, its advantage applies is aspect following two: (1) is normal at pizo-resistance, overvoltage do not reach pizo-resistance operating value but under the sufficiently long situation of time length; cooperate with feed(er) reactor, still can effectively protect current transformer.(2) under the situation of pressure responsive resistor failure, when overvoltage occurring, cooperate with feed(er) reactor, still can guarantee the actv. overvoltage protection.
Description of drawings
Fig. 1 is the scheme drawing that is electrically connected of the present invention
Among the figure: the 1-inverter control system; 2-copped wave pipe; The 3-braking resistor; The 4-main contactor; The 5-charging contactor; 6-tamper seal lock control system.
The specific embodiment
Accompanying drawing has provided a kind of scheme drawing of the present invention, and the invention will be further described below in conjunction with accompanying drawing.
By accompanying drawing as can be seen the present invention be a kind of electric car over-pressure safety device; its electric car over-voltage protection method is in existing electric car overvoltage crowbar; be provided with one and block the compound electric car over-pressure safety device of finishing protection with copped wave control jointly, and block by braking copped wave, hardware controls copped wave and protection and to carry out 3 grades of electric car overvoltage protections by protection.Its structure is to be connected to the copped wave pipe in electric car overvoltage protection power circuit, and the copped wave pipe is controlled by the inverter control system that is attempted by in the electric car overvoltage protection power circuit; Negative pole end at the copped wave pipe is serially connected with braking resistor; The anodal copped wave pipe of inverter control system and copped wave pipe also is serially connected with the tamper seal lock control system in electric car overvoltage protection power circuit, on the cathode circuit between tamper seal lock control system serial connection pizo-resistance and the electric capacity.
Described first order protection is braking copped wave protection.Braking copped wave protection is when inverter side vdc Uin is elevated to DC720V-725V, is worked by the Control Software control copped wave pipe 2 of inverter control system 1, utilizes braking resistor 3 to release energy, and with the inverter side dc voltage stability at DC720V-725V.
The protection of the described second stage is hardware controls copped wave protection.Because software control copped wave has certain time-delay; hardware controls copped wave protection is when inverter side vdc Uin is elevated to DC725V-730V voltage fast; utilize the hardware voltage comparator circuit in the inverter control system 1, directly open copped wave pipe 2, carry out energy by braking resistor 3 and discharge.
The described third stage blocks protection for protection.If inverter side vdc Uin continues to rise, then copped wave pipe 2 keeps open-minded, and it is when the inverter side vdc is elevated to the DC780V left and right sides that protection is blocked in protection, blocks the inverter pulse, and disconnects main contactor 4 and charging contactor 5.At this moment, copped wave pipe 2 and braking resistor 3 work on, and be unaffected.
In electric car overvoltage protective system device, comprise the electric car overvoltage protection power circuit that pizo-resistance, electric capacity and inductance device constitute, its characteristics are to be connected to copped wave pipe 2 in electric car overvoltage protection power circuit, copped wave pipe 2 is attempted by between the electrical nodes 7 and electrical nodes 8 of power circuit of vdc Uin, copped wave pipe 2 is controlled by the inverter control system 1 that is attempted by in the electric car overvoltage protection power circuit, and inverter control system 1 is realized being electrically connected with the power circuit of vdc Uin with electrical nodes 10 by electrical nodes 9; Negative pole end at copped wave pipe 2 is provided with electrical nodes 11, is serially connected with braking resistor 3 between the electrical nodes 12 of the power circuit negative pole of electrical nodes 11 and vdc Uin; Inverter control system 1 also is serially connected with tamper seal lock control system 6 with the anodal copped wave pipe of copped wave pipe 2 in electric car overvoltage protection power circuit.Tamper seal lock control system 6 be by and the main contactor 4 and the charging contactor 5 that connect; and resistance R 1 constitutes; main contactor 4 and charging contactor are attempted by on the power circuit cathode circuit between pizo-resistance and the electric capacity, and resistance R 1 is serially connected on the electrical nodes 7 of charging contactor 5 and power circuit.
Claims (7)
1, trackless trolley car over-voltage protection method; it is characterized in that: in existing electric car overvoltage crowbar; be provided with one and block the compound electric car over-pressure safety device of finishing protection with copped wave control jointly, and block by braking copped wave, hardware controls copped wave and protection and to carry out 3 grades of electric car overvoltage protections by protection.
2, trackless trolley car over-voltage protection method as claimed in claim 1 is characterized in that: described 3 grades of electric car overvoltage protection first order protection is braking copped wave protection; Second stage protection is hardware controls copped wave protection; The third stage blocks protection for protection.
3, trackless trolley car over-voltage protection method as claimed in claim 1 or 2, it is characterized in that: described braking copped wave protection is when inverter side vdc Uin is elevated to DC720V-725V, Control Software control copped wave plumber by inverter control system does, utilize braking resistor to release energy, and with the inverter side dc voltage stability at DC720V-725V; Described hardware controls copped wave protection is when inverter side vdc Uin is elevated to DC725V-730V voltage fast, utilizes the hardware voltage comparator circuit in the inverter control system, directly opens the copped wave pipe, carries out energy by braking resistor and discharges; It is when the inverter side vdc is elevated to the DC780V left and right sides that protection is blocked in described protection, blocks the inverter pulse, and disconnects main contactor and charging contactor.
4, a kind of trackless trolley car over-pressure safety device of realizing the described trackless trolley car over-voltage protection method of claim 1; comprise the electric car overvoltage protection power circuit that pizo-resistance, electric capacity and inductance device constitute; it is characterized in that: be connected to the copped wave pipe in electric car overvoltage protection power circuit, the copped wave pipe is controlled by the inverter control system that is attempted by in the electric car overvoltage protection power circuit.
5, trackless trolley car over-pressure safety device as claimed in claim 4, it is characterized in that: the negative pole end at described copped wave pipe is serially connected with braking resistor.
6, trackless trolley car over-pressure safety device as claimed in claim 4; it is characterized in that: the anodal copped wave pipe of inverter control system and copped wave pipe also is serially connected with the tamper seal lock control system in described electric car overvoltage protection power circuit, on the cathode circuit between tamper seal lock control system serial connection pizo-resistance and the electric capacity.
7, as claim 4 or 5 or 6 described trackless trolley car over-pressure safety devices, it is characterized in that: described copped wave pipe is attempted by between the electrical nodes and electrical nodes of power circuit of vdc Uin, the copped wave pipe is controlled by the inverter control system that is attempted by in the electric car overvoltage protection power circuit, and inverter control system is realized being electrically connected with the power circuit of vdc Uin with electrical nodes by electrical nodes; Negative pole end at the copped wave pipe is provided with electrical nodes, is serially connected with braking resistor between the electrical nodes of the power circuit negative pole of electrical nodes and vdc Uin; The tamper seal lock control system be by and the main contactor and the charging contactor that connect; and resistance R 1 constitutes; main contactor and charging contactor are attempted by on the power circuit cathode circuit between pizo-resistance and the electric capacity, and resistance R 1 is serially connected on the electrical nodes of charging contactor and power circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100342615A CN101016033B (en) | 2007-01-15 | 2007-01-15 | Overvoltage protection method and device for trolley bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100342615A CN101016033B (en) | 2007-01-15 | 2007-01-15 | Overvoltage protection method and device for trolley bus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101016033A true CN101016033A (en) | 2007-08-15 |
| CN101016033B CN101016033B (en) | 2010-04-21 |
Family
ID=38725310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100342615A Active CN101016033B (en) | 2007-01-15 | 2007-01-15 | Overvoltage protection method and device for trolley bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101016033B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104093589A (en) * | 2012-01-26 | 2014-10-08 | 罗伯特·博世有限公司 | Overvoltage arrester for an electrical drive |
| CN104936814A (en) * | 2013-01-31 | 2015-09-23 | 罗伯特·博世有限公司 | Overvoltage protection device for protecting onboard power system of electric vehicle from electrical overvoltage and corresponding method and electric vehicle having overvoltage protection device |
| CN106347140A (en) * | 2016-09-26 | 2017-01-25 | 株洲中车时代电气股份有限公司 | Self-adaptive hybrid braking control method of locomotive |
| CN106786431A (en) * | 2016-11-28 | 2017-05-31 | 株洲中车时代电气股份有限公司 | A kind of pre-control method and device for preventing overvoltage in subway train |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86207756U (en) * | 1986-10-11 | 1987-09-30 | 郑州铁路局襄樊电务段 | Special power supply for loco radio station |
| CN2099699U (en) * | 1991-05-29 | 1992-03-25 | 衡水市无线电厂 | Lighting power source installation for mine electric locomotive with d.c. overhead wire |
-
2007
- 2007-01-15 CN CN2007100342615A patent/CN101016033B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104093589A (en) * | 2012-01-26 | 2014-10-08 | 罗伯特·博世有限公司 | Overvoltage arrester for an electrical drive |
| CN104093589B (en) * | 2012-01-26 | 2017-09-12 | 罗伯特·博世有限公司 | Over-pressure safety device for electric driver |
| CN104936814A (en) * | 2013-01-31 | 2015-09-23 | 罗伯特·博世有限公司 | Overvoltage protection device for protecting onboard power system of electric vehicle from electrical overvoltage and corresponding method and electric vehicle having overvoltage protection device |
| CN106347140A (en) * | 2016-09-26 | 2017-01-25 | 株洲中车时代电气股份有限公司 | Self-adaptive hybrid braking control method of locomotive |
| CN106786431A (en) * | 2016-11-28 | 2017-05-31 | 株洲中车时代电气股份有限公司 | A kind of pre-control method and device for preventing overvoltage in subway train |
| CN106786431B (en) * | 2016-11-28 | 2019-05-21 | 株洲中车时代电气股份有限公司 | It is a kind of for preventing the pre-control method and device of overvoltage in subway train |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101016033B (en) | 2010-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102006007B (en) | Motor control system of electric automobile | |
| CN205283088U (en) | A direct current ground protecting device for magnetic levitation track traffic | |
| CN103481793B (en) | For the integrated ground system of middle low speed magnetic suspension train | |
| CN102126445B (en) | Grounding and protecting method for medium-low speed maglev train | |
| CN101016033B (en) | Overvoltage protection method and device for trolley bus | |
| CN112721958B (en) | Traction auxiliary system and method suitable for power outage area and vehicle | |
| CN106992503B (en) | The earth-leakage protection system of power supply system of train | |
| CN109039221A (en) | A kind of active short circuit current and electric machine controller | |
| CN202806406U (en) | High-pressure crash safety system of new-energy passenger car | |
| CN101364727B (en) | Overvoltage inhibiting apparatus for traction power-supply system in process of vehicle passing through phase breaking | |
| CN205220389U (en) | Electric automobile electric leakage emergent power -off device | |
| CN103373247A (en) | Rail potential protection device | |
| CN108725204A (en) | A kind of hi-lo circuit isolating device of tape insulation detecting system | |
| CN202541352U (en) | Steel rail electric potential protective device | |
| CN107240910B (en) | A kind of direct-current micro-grid earth-fault protection method | |
| CN101954868A (en) | Collision protection device and method of electromobile | |
| CN106740127A (en) | A kind of new-energy automobile and its high-voltage electric system | |
| CN103532365B (en) | A kind of brake unit | |
| CN203522590U (en) | Mining traction electric locomotive chopping speed regulator | |
| CN112332364B (en) | Overcurrent protection control method and system under pantograph lifting state of pantograph | |
| CN107128181B (en) | Safety loop for test type electric vehicle | |
| JP3468826B2 (en) | Short-circuit method between train line and rail | |
| CN211089463U (en) | Overvoltage protection circuit for HXD2 traction power module | |
| CN103647325A (en) | Automobile voltage regulation system | |
| CN203851020U (en) | Power supply converting device of electric vehicle power line network and electric power driving system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CSR ZHUZOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE Free format text: FORMER NAME: ZHUZHOU INST. OF POWER LOCOMOTIVE, CHINA NANCHE GROUP |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 412007 Hunan Province, Zhuzhou Shifeng District Tian Xin North Gate Patentee after: CSR Zhuzou Electric Locomotive Research Institute Co., Ltd. Address before: 412007 Hunan Province, Zhuzhou Shifeng District Tian Xin North Gate Patentee before: Zhuzhou Inst. of Power Locomotive, China Nanche Group |
|
| CI01 | Correction of invention patent gazette |
Correction item: Patentee Correct: Zhuzhou Inst. of Power Locomotive, China Nanche Group|412007 Hunan Province, Zhuzhou Shifeng District Tian Xin North Gate False: CSR Zhuzou Electric Locomotive Research Institute Co., Ltd.|412007 Hunan Province, Zhuzhou Shifeng District Tian Xin North Gate Number: 15 Volume: 29 |
|
| ERR | Gazette correction |
Free format text: CORRECT: PATENTEE; FROM: CSR ZHUZOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.:412007 ZHUZHOU, HUNAN PROVINCE TO: ZHUZHOU INST. OF POWER LOCOMOTIVE, CHINA NANCHE GROUP:412007 ZHUZHOU, HUNAN PROVINCE |
|
| C56 | Change in the name or address of the patentee |
Owner name: CSR ZHUZOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE Free format text: FORMER NAME: ZHUZHOU INST. OF POWER LOCOMOTIVE, CHINA NANCHE GROUP |
|
| CP03 | Change of name, title or address |
Address after: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee after: CSR Zhuzou Electric Locomotive Research Institute Co., Ltd. Address before: 412007 Hunan Province, Zhuzhou Shifeng District Tian Xin North Gate Patentee before: Zhuzhou Inst. of Power Locomotive, China Nanche Group |