CN107901791B - Method, system and device for detecting multi-power supply loop - Google Patents
Method, system and device for detecting multi-power supply loop Download PDFInfo
- Publication number
- CN107901791B CN107901791B CN201711165163.5A CN201711165163A CN107901791B CN 107901791 B CN107901791 B CN 107901791B CN 201711165163 A CN201711165163 A CN 201711165163A CN 107901791 B CN107901791 B CN 107901791B
- Authority
- CN
- China
- Prior art keywords
- power supply
- supply loop
- voltage
- loop
- rail
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M3/00—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/02—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The application discloses many power supply circuit detection method is applied to contact net and third rail and all connects locomotive owner transmission system's power supply circuit through keeping apart the device that switches on, includes: acquiring a first voltage of a standby power supply loop through a first voltage sensor; the current locomotive main transmission system is powered by a target power supply loop, the target power supply loop is a contact network power supply loop or a third rail power supply loop, and the standby power supply loop is a third rail power supply loop or a contact network power supply loop in a standby state; and when the first voltage is in a preset range, judging that the standby power supply circuit is in series connection with the target power supply circuit, and performing corresponding fault treatment. The circuit is simple, the occupied space is small, the circuit is applied to a power supply loop with an isolation conduction device, when a series connection conduction fault occurs in a standby power supply loop, the first voltage changes to a preset range, the fault can be timely processed after the change is detected, and protective control measures are taken to prevent loss and amplification.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a method, a system and a device for detecting a multi-power supply loop.
Background
In a direct-current contact network, a third rail or a storage battery three-power supply mode of the storage battery electric engineering truck, after direct currents with different voltage grades (such as DC1500V or DC800V) pass through a high-speed circuit breaker and filtering of a chopper reactor and inversion of a traction inverter by a traction main loop, three-phase voltage is provided for a subsequent three-phase alternating-current asynchronous traction motor, and the operation requirement of the engineering truck is met. Fig. 1 shows a schematic diagram of a main loop of a storage battery electric engineering vehicle in a three-power supply mode. Wherein, contact net, third rail and traction battery all belong to high-voltage power supply, for avoiding the series electricity between third rail and the contact net, two kinds of schemes are adopted in present design:
firstly, use the contactor control mode, respectively use a contactor in contact net and the third rail power supply circuit promptly, reach the purpose of keeping apart through the break-make of network control contactor. However, the power of the control coil of the contactor is large, and the contactor cannot be started by simply using a control power supply, and a corresponding relay is required to be equipped to drive the control coil. This solution requires consideration of sufficient installation space and the control logic is also complex.
And the other is that the diode isolation is directly used in the main loop. The scheme is simple, the complexity of control logic is not considered, and the risk of series connection can be avoided only by diode isolation. However, short high voltages or quality problems of the device itself cause the diode to break down, which will make the circuit between the contact system and the third rail conductive. At the moment, if the pantograph is lifted in the warehouse for charging, the current collector under the automobile is provided with high voltage, so that the potential safety hazard of personnel electric shock exists. According to the mature diode products known in the market at present, the breakdown of the diode products causes short circuit of a circuit, and the breakdown fault cannot be found and processed quickly without an indicator.
Disclosure of Invention
In view of this, the present invention provides a method, a system and a device for detecting multiple power supply circuits, so as to ensure that a fault of the multiple power supply circuits can be found in time and processed accordingly. The specific scheme is as follows:
a multi-power supply loop detection method is applied to a power supply loop of a contact network and a third rail which are connected with a locomotive main transmission system through an isolation conduction device, and comprises the following steps:
acquiring a first voltage of a standby power supply loop through a first voltage sensor;
the current locomotive main transmission system is powered by a target power supply loop, the target power supply loop is a contact network power supply loop or a third rail power supply loop, and correspondingly, the standby power supply loop is the third rail power supply loop or the contact network power supply loop in a standby state;
and when the first voltage is in a preset range, judging that the standby power supply circuit is in series electrical conduction with the target power supply circuit, and performing corresponding fault treatment.
Preferably, the method for detecting multiple power supply loops further comprises:
acquiring a second voltage of the target power supply loop through a second voltage sensor;
judging whether the second voltage is in a preset range or not; if so, shielding the second voltage; and if not, judging that the second voltage sensor is in fault.
Preferably, the determining that the standby power supply circuit is electrically connected in series with the target power supply circuit, and performing corresponding fault processing specifically includes:
when the target power supply circuit is the power supply circuit of the contact network, judging that the standby power supply circuit is in series electrical conduction with the target power supply circuit, disconnecting a high-speed circuit breaker of the locomotive main transmission system and performing pantograph lowering treatment;
and when the target power supply circuit is the third rail power supply circuit, judging that the standby power supply circuit is in series electrical conduction with the target power supply circuit, disconnecting a high-speed circuit breaker of the locomotive main transmission system and performing boot lowering treatment.
Preferably, the determining that the backup power supply circuit is electrically connected in series with the target power supply circuit and performing corresponding fault processing further includes:
and the alarm is given through a buzzer and/or a warning lamp.
Correspondingly, the invention also discloses a multi-power supply loop detection system, which is applied to a power supply loop of a contact network and a third rail which are connected with a main transmission system of a locomotive through an isolation conduction device, and comprises the following components:
the voltage acquisition module is used for acquiring a first voltage of the standby power supply loop through a first voltage sensor;
the current locomotive main transmission system is powered by a target power supply loop, the target power supply loop is a contact network power supply loop or a third rail power supply loop, and the standby power supply loop is the third rail power supply loop or the contact network power supply loop in a standby state;
and the voltage judgment module is used for judging that the standby power supply loop is in series electrical conduction with the target power supply loop when the first voltage is in a preset range, and performing corresponding fault treatment.
Preferably, the voltage acquisition module is further configured to:
acquiring a second voltage of the target power supply loop through a second voltage sensor;
correspondingly, the voltage judging module is further configured to:
judging whether the second voltage is in a preset range or not; if so, shielding the second voltage; and if not, judging that the second voltage sensor is in fault.
Correspondingly, the invention also discloses a multi-power supply loop detection device, which is applied to a power supply loop of a contact network and a third rail which are connected with a main transmission system of a locomotive through an isolation conduction device, and comprises the following components:
the first voltage sensor is used for acquiring a first voltage of the standby power supply loop;
the current locomotive main transmission system is powered by a target power supply loop, the target power supply loop is a contact network power supply loop or a third rail power supply loop, and the standby power supply loop is the third rail power supply loop or the contact network power supply loop in a standby state;
and the processor is used for judging that the standby power supply loop is in series electrical conduction with the target power supply loop when the first voltage is in a preset range, and performing corresponding fault treatment.
Preferably, the multi-power supply loop detection device further includes a second voltage sensor, configured to obtain a second voltage of the target power supply loop;
correspondingly, the processor is further configured to determine whether the second voltage is within a preset range; if so, shielding the second voltage; and if not, judging that the second voltage sensor is in fault.
Preferably, the isolation conduction device is a diode or a controllable isolation switch.
Preferably, the multi-power supply loop detection device further comprises a buzzer and/or a warning lamp connected with the processor.
The invention discloses a multi-power supply loop detection method, which is applied to a power supply loop of a main transmission system of a locomotive, which is connected with a contact net and a third rail through an isolation conduction device, and comprises the following steps: acquiring a first voltage of a standby power supply loop through a first voltage sensor; the current locomotive main transmission system is powered by a target power supply loop, the target power supply loop is a contact network power supply loop or a third rail power supply loop, and correspondingly, the standby power supply loop is the third rail power supply loop or the contact network power supply loop in a standby state; and when the first voltage is in a preset range, judging that the standby power supply circuit is in series electrical conduction with the target power supply circuit, and performing corresponding fault treatment. The circuit is simple, the occupied space is small, and the circuit is applied to a power supply loop with an isolation conduction device, wherein a main transmission system of a locomotive is supplied with power by a target power supply loop, the target power supply loop can be selectively switched between a contact network power supply loop and a third rail power supply loop, the other power supply loop is used as a standby power supply loop, when a series connection conduction fault between the standby power supply loop and the target power supply loop occurs, the first voltage changes to a preset range, the fault can be timely processed after the change is detected, and protective control measures are taken to prevent loss and expansion.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of a multi-power supply circuit of an electric engineering vehicle in the prior art;
FIG. 2 is a flowchart illustrating the steps of a method for detecting multiple power supply loops according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a multi-power-supply loop detection system according to an embodiment of the present invention;
fig. 4 is a structural distribution diagram of a multi-power-supply-loop detection apparatus according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a method for detecting a multi-power supply loop, which is applied to a power supply loop in which a contact network and a third rail are connected with a main transmission system of a locomotive through an isolation conduction device, and is shown in figure 2, and comprises the following steps:
step S1: acquiring a first voltage of a standby power supply loop through a first voltage sensor;
the current locomotive main transmission system is powered by a target power supply loop, the target power supply loop is a contact network power supply loop or a third rail power supply loop, and correspondingly, the standby power supply loop is the third rail power supply loop or the contact network power supply loop in a standby state.
It can be understood that the target power supply loop switches and selects between the catenary power supply loop and the third rail power supply loop, and the remaining power supply loop after selection is used as a standby power supply loop.
In addition, the method for detecting multiple power supply loops after step S1 may further include:
acquiring a second voltage of the target power supply loop through a second voltage sensor;
judging whether the second voltage is in a preset range or not; if so, shielding the second voltage; and if not, judging that the second voltage sensor is in fault.
This is because the network voltage signal of the target power supply loop can be directly obtained by the network voltage sensor of the main transmission system, and is actually equivalent to the second voltage. The second voltage is to be acquired in order to verify whether the second voltage sensor is normal, if a normal signal of the second voltage is acquired, that is, the second voltage is in a preset range, the second voltage sensor is normal, data judgment is not needed, and a network voltage signal is directly used in the operation of the main transmission system; and if the obtained second voltage is not in the preset range, judging that the second voltage sensor is in fault and cannot send a normal signal.
Step S2: and when the first voltage is in a preset range, judging that the standby power supply circuit is in series electrical conduction with the target power supply circuit, and performing corresponding fault treatment.
Specifically, the fault handling steps of different backup power supply loops are slightly different:
when the target power supply circuit is the power supply circuit of the contact network, judging that the standby power supply circuit is in series electrical conduction with the target power supply circuit, disconnecting a high-speed circuit breaker of the locomotive main transmission system and performing pantograph lowering treatment;
and when the target power supply circuit is the third rail power supply circuit, judging that the standby power supply circuit is in series electrical conduction with the target power supply circuit, disconnecting a high-speed circuit breaker of the locomotive main transmission system and performing boot lowering treatment.
Further, no matter the target power supply circuit is the overhead line system power supply circuit or the third rail power supply circuit, step S2 may also include: and the alarm is given through a buzzer and/or a warning lamp.
The frequency and the duration of the buzzer and the warning lamp can be set.
Furthermore, the method can also comprise recording various types of information, such as the first voltage, the second voltage, the current target power supply loop, fault information, processing procedures and the like acquired each time, so that the method is favorable for later review and experience summary by using the recorded information.
The invention discloses a multi-power supply loop detection method, which is applied to a power supply loop of a main transmission system of a locomotive, which is connected with a contact net and a third rail through an isolation conduction device, and comprises the following steps: acquiring a first voltage of a standby power supply loop through a first voltage sensor; the current locomotive main transmission system is powered by a target power supply loop, the target power supply loop is a contact network power supply loop or a third rail power supply loop, and correspondingly, the standby power supply loop is the third rail power supply loop or the contact network power supply loop in a standby state; and when the first voltage is in a preset range, judging that the standby power supply circuit is in series electrical conduction with the target power supply circuit, and performing corresponding fault treatment. The circuit is simple, the occupied space is small, and the circuit is applied to a power supply loop with an isolation conduction device, wherein a main transmission system of a locomotive is supplied with power by a target power supply loop, the target power supply loop can be selectively switched between a power supply loop of a contact network and a power supply loop of a third rail, the other power supply loop is used as a standby power supply loop, when a series connection conduction fault occurs in the standby power supply loop, the first voltage changes to a preset range, the fault can be timely processed after the change is detected, and protective control measures are taken to prevent loss and enlargement.
Correspondingly, the embodiment of the present invention further discloses a multi-power supply loop detection system, which is applied to a power supply loop in which a contact network and a third rail are both connected to a main transmission system of a locomotive through an isolation conduction device, as shown in fig. 3, and includes:
the voltage acquisition module 01 is used for acquiring a first voltage of the standby power supply loop through a first voltage sensor;
the current locomotive main transmission system is powered by a target power supply loop, the target power supply loop is a contact network power supply loop or a third rail power supply loop, and the standby power supply loop is the third rail power supply loop or the contact network power supply loop in a standby state;
and the voltage judgment module 02 is used for judging that the standby power supply loop is in series electrical conduction with the target power supply loop when the first voltage is in a preset range, and performing corresponding fault treatment.
Preferably, the voltage obtaining module 01 is further configured to:
acquiring a second voltage of the target power supply loop through a second voltage sensor;
correspondingly, the voltage determination module 02 is further configured to:
judging whether the second voltage is in a preset range or not; if so, shielding the second voltage; and if not, judging that the second voltage sensor is in fault.
Specifically, for a detailed description of the multi-power-supply-circuit detection system, reference may be made to the multi-power-supply-circuit detection method in the previous embodiment, which is not described herein again.
Correspondingly, the embodiment of the invention discloses a multi-power supply loop detection device, which is applied to a power supply loop of a main transmission system of a locomotive, wherein a contact network and a third rail are connected through an isolation conduction device, and as shown in fig. 4, the detection device comprises:
a first voltage sensor 11, configured to obtain a first voltage of the standby power supply loop;
the current locomotive main transmission system is powered by a target power supply loop, the target power supply loop is a contact network power supply loop or a third rail power supply loop, and the standby power supply loop is the third rail power supply loop or the contact network power supply loop in a standby state;
and the processor 12 is configured to determine that the standby power supply circuit is in series electrical conduction with the target power supply circuit when the first voltage is within a preset range, and perform corresponding fault processing.
Further, the multi-power supply loop detection device further includes a second voltage sensor 13, configured to obtain a second voltage of the target power supply loop;
correspondingly, the processor 12 is further configured to determine whether the second voltage is within a preset range; if so, shielding the second voltage; if not, it is determined that the second voltage sensor 13 is malfunctioning.
Specifically, the isolation conduction device may be a diode or a controllable isolation switch.
In addition, the multi-power supply loop detection device may further include a buzzer and/or a warning light connected to the processor 12.
For details of the multi-power-supply-loop detection apparatus, reference may be made to the description of the multi-power-supply-loop detection method in the foregoing embodiment, and details are not repeated here.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The method, the system and the device for detecting the multi-power supply loop provided by the invention are described in detail, a specific example is applied in the text to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (7)
1. The method for detecting the power supply loops of multiple power supplies is characterized by being applied to the power supply loops of a main transmission system of a locomotive, wherein a contact net and a third rail are connected through an isolation conduction device, and the method comprises the following steps:
acquiring a first voltage of a standby power supply loop through a first voltage sensor;
the current locomotive main transmission system is powered by a target power supply loop, the target power supply loop is a contact network power supply loop or a third rail power supply loop, and correspondingly, the standby power supply loop is the third rail power supply loop or the contact network power supply loop in a standby state;
when the first voltage is in a preset range, judging that the standby power supply loop is in series electrical conduction with the target power supply loop, and performing corresponding fault treatment;
acquiring a second voltage of the target power supply loop through a second voltage sensor;
judging whether the second voltage is in a preset range or not; if so, shielding the second voltage; and if not, judging that the second voltage sensor is in fault.
2. The method according to claim 1, wherein the step of determining that the backup power supply circuit is electrically connected in series with the target power supply circuit and performing corresponding fault processing specifically comprises:
when the target power supply loop is the contact network power supply loop, judging that the standby power supply loop is in series electrical conduction with the target power supply loop, disconnecting a high-speed circuit breaker of the locomotive main transmission system and performing pantograph lowering treatment;
and when the target power supply loop is the third rail power supply loop, judging that the standby power supply loop is in series electrical conduction with the target power supply loop, disconnecting a high-speed circuit breaker of the locomotive main transmission system and performing boot lowering treatment.
3. The multi-power-supply power supply loop detection method according to any one of claims 1 to 2, wherein the process of determining that the backup power supply loop is electrically connected in series with the target power supply loop and performing corresponding fault handling further comprises:
and the alarm is given through a buzzer and/or a warning lamp.
4. The utility model provides a many power supply circuit detecting system which characterized in that is applied to contact net and third rail and all connects locomotive owner transmission system's power supply circuit through keeping apart the device that switches on, includes:
the voltage acquisition module is used for acquiring a first voltage of the standby power supply loop through the first voltage sensor and acquiring a second voltage of the target power supply loop through the second voltage sensor;
the current locomotive main transmission system is powered by the target power supply loop, the target power supply loop is a contact network power supply loop or a third rail power supply loop, and the standby power supply loop is the third rail power supply loop or the contact network power supply loop in a standby state;
the voltage judgment module is used for judging that the standby power supply loop is in series electrical conduction with the target power supply loop when the first voltage is in a preset range, and performing corresponding fault treatment;
the voltage judging module is further used for judging whether the second voltage is in a preset range, and if so, shielding the second voltage; and if not, judging that the second voltage sensor is in fault.
5. The utility model provides a many power supply circuit detection device which characterized in that is applied to contact net and third rail and all connects locomotive main transmission system's supply circuit through keeping apart the device that switches on, includes:
the first voltage sensor is used for acquiring a first voltage of the standby power supply loop;
the current locomotive main transmission system is powered by a target power supply loop, the target power supply loop is a contact network power supply loop or a third rail power supply loop, and the standby power supply loop is the third rail power supply loop or the contact network power supply loop in a standby state;
the second voltage sensor is used for acquiring a second voltage of the target power supply loop;
the processor is used for judging that the standby power supply loop is in series electrical conduction with the target power supply loop when the first voltage is in a preset range, and performing corresponding fault processing;
the processor is further used for judging whether the second voltage is in a preset range; if so, shielding the second voltage; and if not, judging that the second voltage sensor is in fault.
6. The multi-power supply loop detection device according to claim 5, wherein the isolated conduction device is a diode or a controllable isolation switch.
7. The multi-power supply loop detection device according to claim 5, further comprising a buzzer and/or a warning light connected to the processor.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711165163.5A CN107901791B (en) | 2017-11-21 | 2017-11-21 | Method, system and device for detecting multi-power supply loop |
| PCT/CN2018/116603 WO2019101084A1 (en) | 2017-11-21 | 2018-11-21 | Multi-source power supply circuit test method, system, and device |
| AU2018372887A AU2018372887B2 (en) | 2017-11-21 | 2018-11-21 | Multi-source power supply circuit detection method, system, and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711165163.5A CN107901791B (en) | 2017-11-21 | 2017-11-21 | Method, system and device for detecting multi-power supply loop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107901791A CN107901791A (en) | 2018-04-13 |
| CN107901791B true CN107901791B (en) | 2021-03-26 |
Family
ID=61846587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711165163.5A Active CN107901791B (en) | 2017-11-21 | 2017-11-21 | Method, system and device for detecting multi-power supply loop |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN107901791B (en) |
| AU (1) | AU2018372887B2 (en) |
| WO (1) | WO2019101084A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107901791B (en) * | 2017-11-21 | 2021-03-26 | 中车株洲电力机车有限公司 | Method, system and device for detecting multi-power supply loop |
| CN111086390B (en) * | 2020-01-06 | 2023-05-02 | 中车株洲电力机车有限公司 | High-voltage power supply conversion system and method for urban rail vehicle |
| CN112085230B (en) * | 2020-09-11 | 2024-01-23 | 珠海优特电力科技股份有限公司 | Method and device for power interruption and transmission of contact network equipment, storage medium and electronic device |
| CN112874389B (en) * | 2021-02-01 | 2022-07-12 | 重庆中车长客轨道车辆有限公司 | Operation protection method, device, equipment and computer readable storage medium |
| CN114475370B (en) * | 2022-03-14 | 2023-04-07 | 西南交通大学 | Short circuit sectional protection method for contact network of cable through power supply system |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61139764A (en) * | 1984-12-12 | 1986-06-27 | Yokohama Shintoshi Kotsu Kk | Method for detecting earth of electric car cable |
| SE467434B (en) * | 1990-12-19 | 1992-07-13 | Asea Brown Boveri | Method and device for detecting earth leakage faults |
| DE4213271C1 (en) * | 1992-04-16 | 1993-10-21 | Aeg Westinghouse Transport | Short-circuit testing of overhead line section for electric railway - increasing test voltage and monitoring current to provide short-circuit indication via threshold stage |
| EP1288060A1 (en) * | 2001-08-31 | 2003-03-05 | Alstom Belgium S.A. | Multiple voltage power supply for railway vehicles |
| JP2010158097A (en) * | 2008-12-26 | 2010-07-15 | Toyota Motor Corp | Power supply device, vehicle equipped with same, and anomaly determination method for power supply devices |
| CN201907426U (en) * | 2010-12-13 | 2011-07-27 | 南车株洲电力机车有限公司 | Locomotive power supply circuit applicable to multiple power supply modes |
| CN202433497U (en) * | 2011-12-20 | 2012-09-12 | 南车株洲电力机车有限公司 | Fault detection device for main circuit breaker of locomotive |
| CN202735449U (en) * | 2012-05-08 | 2013-02-13 | 国家电网公司 | Portable multifunctional series electric detector |
| CN102774385B (en) * | 2012-08-22 | 2014-08-27 | 南车株洲电力机车有限公司 | Electric locomotive and power supply system and power supply method thereof |
| CN103913664B (en) * | 2012-12-31 | 2017-05-24 | 力博特公司 | Short-circuit detection method and device |
| JP6084473B2 (en) * | 2013-02-01 | 2017-02-22 | 日立オートモティブシステムズ株式会社 | Compound sensor |
| CN103204067B (en) * | 2013-03-26 | 2015-07-29 | 南车株洲电力机车有限公司 | A kind of Dual-energy source method for controlling power supply and device |
| DE102013214835A1 (en) * | 2013-07-30 | 2015-02-05 | Robert Bosch Gmbh | Surge protection for a multi-voltage vehicle electrical system |
| CN103401288B (en) * | 2013-08-06 | 2016-06-01 | 南车株洲电力机车有限公司 | A kind of energy storage type electric traction vehicle prevents chargingmethod and the system of arcing |
| CN204068363U (en) * | 2014-08-18 | 2014-12-31 | 潍柴动力股份有限公司 | For two storage battery power supply circuit of start and stop technology |
| CN104502789B (en) * | 2015-01-19 | 2017-08-08 | 南车株洲电力机车有限公司 | A kind of grounded inspection circuit of double-source controlled subway engineering maintenance vehicle |
| CN105137376B (en) * | 2015-06-30 | 2018-02-02 | 株洲南车时代电气股份有限公司 | A kind of medium voltage sensor fault diagnosis method of Locomotive Converter |
| FR3050699B1 (en) * | 2016-04-28 | 2018-04-27 | Sncf Mobilites | SUPERCONDUCTING PANTOGRAPH SYSTEM AND RAILWAY VEHICLE COMPRISING SAID SYSTEM |
| CN106585387B (en) * | 2016-12-13 | 2019-12-17 | 中车株洲电力机车有限公司 | circuit interlocking control system of storage battery electric power engineering vehicle |
| CN206542249U (en) * | 2017-03-26 | 2017-10-03 | 哈尔滨理工大学 | A kind of communication apparatus protects power supply |
| CN107901791B (en) * | 2017-11-21 | 2021-03-26 | 中车株洲电力机车有限公司 | Method, system and device for detecting multi-power supply loop |
-
2017
- 2017-11-21 CN CN201711165163.5A patent/CN107901791B/en active Active
-
2018
- 2018-11-21 WO PCT/CN2018/116603 patent/WO2019101084A1/en active Application Filing
- 2018-11-21 AU AU2018372887A patent/AU2018372887B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019101084A1 (en) | 2019-05-31 |
| CN107901791A (en) | 2018-04-13 |
| AU2018372887A1 (en) | 2020-06-18 |
| AU2018372887B2 (en) | 2022-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107901791B (en) | Method, system and device for detecting multi-power supply loop | |
| US10913357B2 (en) | Method and system for monitoring electrical insulation resistance in an electric system | |
| CN112513651A (en) | Method for detecting insulation faults | |
| CN102923013B (en) | Discharge control method and system for new energy automobile | |
| US20070139016A1 (en) | Battery charging system and methods | |
| CN105564248A (en) | Method for detecting interlock failure of connector in eco-friendly vehicle | |
| CN109941109B (en) | Switch and safety system for controlling power-on and power-off sequence of high-voltage electric device of electric automobile | |
| CN203519737U (en) | Electric vehicle test system possessing scram and insulation protection functions | |
| US9209616B2 (en) | Power supply circuit for on board energy source or storage device and particularly for super-capacitor storage unit | |
| CN113238124B (en) | Alternating current insulation detection system and method and railway vehicle | |
| CN205202752U (en) | AC electric locomotive traction system | |
| CN105270181A (en) | Intermediate relay control device, and control method thereof, and high-voltage power-down control method | |
| CN204649854U (en) | A kind of DC600V train direct power supply load test system | |
| CN103770650A (en) | Locomotive traction and auxiliary system integrated grounding protection device | |
| CN111308297A (en) | Insulation detection device | |
| CN111781539B (en) | Three-phase four-wire alternating current leakage detection circuit, device and vehicle | |
| CN211014520U (en) | Pure electric vehicle insulation detection system with contactor adhesion judgment function | |
| CN111086390B (en) | High-voltage power supply conversion system and method for urban rail vehicle | |
| CN211180077U (en) | Insulation fault detection circuit and car | |
| CN111196159A (en) | Low-voltage maintenance switch device, control method and vehicle | |
| CN106571619A (en) | Storage battery undervoltage protection control circuit and control method thereof | |
| CN113829929B (en) | Train, train control method and train charging system control method | |
| CN218876907U (en) | New forms of energy chassis high pressure is got electric safety control system | |
| CN211556964U (en) | Power supply management system | |
| CN210591479U (en) | Power supply control system of logistics vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |