CN113659617A - Auxiliary power supply management system and method and railway vehicle - Google Patents
Auxiliary power supply management system and method and railway vehicle Download PDFInfo
- Publication number
- CN113659617A CN113659617A CN202110856483.5A CN202110856483A CN113659617A CN 113659617 A CN113659617 A CN 113659617A CN 202110856483 A CN202110856483 A CN 202110856483A CN 113659617 A CN113659617 A CN 113659617A
- Authority
- CN
- China
- Prior art keywords
- power supply
- supply management
- management unit
- grid
- switch
- 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
Classifications
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/466—Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
- H02J3/472—For selectively connecting the AC sources in a particular order, e.g. sequential, alternating or subsets of sources
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- 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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Sources (AREA)
Abstract
The embodiment of the application provides an auxiliary power supply management system and method and a railway vehicle. The auxiliary power supply management system comprises a control module, a plurality of power supply management modules and a plurality of first switches; the power supply management modules are sequentially arranged on the power supply bus, and a first switch is arranged between every two adjacent power supply management modules; when detecting that the auxiliary power supply management system meets a preset starting condition, the control module controls the first switch to be in a closed state and sequentially sends grid-connected instructions to the power supply management unit according to the polling sequence, and if a grid-connected success signal fed back by the target power supply management unit is received, the control module stops sending the grid-connected instructions to the power supply management unit to be received; and when the power supply management unit to be received detects that power is supplied to the power supply bus, the corresponding second switch is controlled to be in a closed state. By the aid of the auxiliary power supply management system, time-sharing starting and grid-connection time of the power supply management module is shortened, and running efficiency of the rail vehicle is improved.
Description
Technical Field
The application relates to the technical field of railway vehicles, in particular to an auxiliary power supply management system and method and a railway vehicle.
Background
The power supply management module (ACU) is responsible for supplying power to all medium and low voltage loads in the rail vehicle, is one of the most important units of the rail vehicle, and the working stability of the power supply management module directly influences the normal work of the medium voltage bus and the related loads on the low voltage bus of the rail vehicle. The rail vehicle adopting the grid-connected power supply technology generally comprises a plurality of ACUs, and after the rail vehicle is activated and has high-voltage input, time-sharing starting grid-connected control needs to be carried out on the plurality of ACUs to ensure that stable power supply input is provided for a medium-voltage alternating-current bus and the ACUs and an alternating-current load are protected.
According to the conventional ACU grid-connected power supply method for the railway vehicle, a plurality of ACUs are controlled by themselves to be started in sequence in a time-sharing mode according to the positions of the mounted vehicles, and grid-connected power supply is completed. The specific implementation method comprises the following steps: setting starting waiting time in ACU control software, and starting the ACU of a first vehicle firstly by detecting the state of a medium-voltage alternating-current bus and other related conditions; and other ACUs are sequentially started by detecting the state of the medium-voltage alternating-current bus, the three-phase sequence of the alternating-current bus and other related conditions, and after all the ACUs are started, the grid connection is completed.
Problems existing in the prior art:
in the existing grid-connected power supply implementation method, due to the fact that no signal interaction exists among a plurality of ACUs, various abnormal working conditions need to be considered in the starting waiting time set in ACU control software, time consumption of all the ACUs in the time-sharing starting grid-connected process is long, the time of the rail vehicle entering the normal operation working condition is prolonged, and the operation efficiency of the rail vehicle is reduced.
Disclosure of Invention
The embodiment of the application provides an auxiliary power supply management system and method and a railway vehicle, simplifies the grid connection process of a power supply management module, and shortens the time for starting the power supply management module in a time-sharing manner to realize grid connection so as to solve the problems in the prior art.
According to a first aspect of embodiments of the present application, there is provided an auxiliary power management system, including a control module, a plurality of power management modules, and a plurality of first switches; each power supply management module comprises a power supply management unit and a second switch, the power supply management modules are sequentially arranged on a power supply bus, and one first switch is arranged between every two adjacent power supply management modules; the control module is connected with each power supply management unit, and each power supply management unit is connected with the power supply bus through the second switch;
the control module is used for controlling the first switch to be in a closed state under the condition that the auxiliary power supply management system is detected to meet a preset starting condition;
the control module is further used for sequentially sending grid-connected instructions to the power supply management unit according to a polling sequence under the condition that the first switch is in a closed state;
the control module is further used for stopping sending the grid-connected instruction to the power supply management unit to be received if a grid-connected success signal fed back by the target power supply management unit is received in the process of sequentially sending the grid-connected instruction to the plurality of power supply management units; the target power supply management unit is a power supply management unit which receives the grid-connected instruction and controls the second switch to be in a closed state, and the to-be-received power supply management unit is a power supply management unit which does not receive the grid-connected instruction;
and the power supply management unit to be received is used for controlling the corresponding second switch to be in a closed state under the condition that the power supply bus is detected to be electrified.
According to a second aspect of the embodiments of the present application, an auxiliary power supply management method is provided, which is applied to a control module of an auxiliary power supply management system, where the auxiliary power supply management system further includes a plurality of power supply management modules and a plurality of first switches, each of the power supply management modules includes a power supply management unit and a second switch, the plurality of power supply management modules are sequentially arranged on a power supply bus, and one first switch is arranged between two adjacent power supply management modules; the control module is connected with each power supply management unit, and each power supply management unit is connected with the power supply bus through the second switch:
the control module controls the first switch to be in a closed state under the condition that the control module detects that the auxiliary power supply management system meets a preset starting condition;
the control module sequentially sends grid-connected instructions to the power supply management unit according to a polling sequence under the condition that the first switch is in a closed state;
in the process that the control module sequentially sends grid-connected instructions to the plurality of power supply management units, if a grid-connected success signal fed back by a target power supply management unit is received, the control module stops sending the grid-connected instructions to the power supply management unit to be received; the target power supply management unit is a power supply management unit which receives the grid-connected instruction and controls the second switch to be in a closed state, and the to-be-received power supply management unit is a power supply management unit which does not receive the grid-connected instruction.
According to a third aspect of the embodiments of the present application, there is provided a rail vehicle including the auxiliary power management system according to the first aspect.
By adopting the auxiliary power supply management system and method and the rail vehicle provided by the embodiment of the application, the control module sequentially sends the grid-connected instruction to the power supply management units according to the polling sequence, and in the process that the control module sequentially sends the grid-connected instruction to the plurality of power supply management units, if a grid-connected success signal fed back by the target power supply management unit is received, the control module stops sending the grid-connected instruction to the power supply management unit to be received; and the power supply management unit to be received controls the corresponding second switch to be in a closed state under the condition that the power supply bus is detected to be electrified. Therefore, in the process of controlling grid connection, if one of the power supply management units is successfully connected to the grid, the control module stops controlling the power supply management unit to be received to be connected to the grid, and the power supply management unit to be received detects the power-on condition of the power supply bus to automatically perform grid connection action. Compared with the prior art, the control module only needs to control one of the power supply management units to be successfully connected to the grid, and does not need to control each power supply management unit to be successfully connected to the grid, so that the grid connection process of the control module is simplified, the interaction steps of the control module and the power supply management units are reduced, and the time-sharing starting grid connection time of the power supply management modules is shortened. Due to the fact that the grid-connected process of the control module is simplified, the error rate of the control process of the control module is reduced, and the running efficiency of the rail vehicle is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a rail vehicle according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an auxiliary power management system according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another auxiliary power management system according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of another auxiliary power management system according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of another auxiliary power management system according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of another auxiliary power management system according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of another auxiliary power management system according to an embodiment of the present application;
fig. 8 is a schematic flowchart of an auxiliary power management method according to an embodiment of the present application.
Icon: 100-a rail vehicle; 110-auxiliary power management system; 111-a control module; 112-a power management module; 1121-power supply management unit; 1122-a second switch; 113-a first switch; 114-a battery; 120-supply bus; 130-load.
Detailed Description
In the process of implementing the present application, the inventor finds that, in the existing grid-connected power supply implementation method, because there is no signal interaction between multiple ACUs, there is the following problem:
for the first problem, various abnormal working conditions need to be considered for the starting waiting time set in the ACU control software, so that the time consumed for all ACUs to complete the time-sharing starting grid connection process is long, the time for the rail vehicle to enter the normal operation working condition is prolonged, and the operation efficiency of the rail vehicle is reduced.
The second problem is that when short-circuit fault occurs, grid-connected power supply control of all ACUs and normal work of the ACUs and loads are affected, and after fault reasons need to be manually eliminated, normal grid-connected control can be implemented, so that the train cannot normally run.
In the third problem, when the voltage of the storage battery is too low, the ACU connected with the storage battery needs to be firstly controlled by low-voltage starting to complete the quick charging control of the storage battery. At this time, manual isolation control needs to be carried out on other ACUs to prevent the other ACUs from being started during the low-voltage starting process of the ACUs. After the voltage of the storage battery is recovered, the isolated ACU needs to be manually recovered manually, so that normal time-sharing starting grid-connected control can be implemented, and the ACU starting control process is complicated under the condition of low-voltage abnormal working condition of the storage battery.
In order to solve the above problems, embodiments of the present application provide an auxiliary power supply management system and method and a rail vehicle, a plurality of power supply management modules and a plurality of first switches are controlled in a centralized manner through a control module, so that a grid connection process can be simplified, time-sharing starting and grid connection time of the power supply management modules is shortened, and operating efficiency of the rail vehicle is improved. Meanwhile, the first switch is arranged among the plurality of power supply management modules, so that the power supply management modules with single or multiple faults can be isolated, the power supply of the rail vehicle can be furthest ensured under the condition that the power supply management modules have faults, and the driving safety is ensured. Under the short-circuit fault working condition, the grid-connected efficiency is improved, and the running efficiency of the rail vehicle is improved. And under the condition of low-voltage abnormal working condition of the storage battery, the starting process of the power supply management module is simplified.
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Referring to fig. 1, a schematic structural diagram of a rail vehicle 100 according to an embodiment of the present disclosure is provided, where the rail vehicle 100 includes an auxiliary power supply management system 110 and a load 130, and the auxiliary power supply management system 110 supplies power to the load 130 through a power supply bus 120. Wherein the load 130 is mainly a medium-low voltage load on the rail vehicle 100; the auxiliary power management system 110 performs a grid-tie operation after the rail vehicle 100 is activated and has a high voltage input, so as to ensure that a stable power input is supplied to the power supply bus 120.
Referring to fig. 2, the auxiliary power management system 110 shown in fig. 2 includes a control module 111, a plurality of power management modules 112, and a plurality of first switches 113; each power supply management module 112 includes a power supply management unit 1121 and a second switch 1122, the plurality of power supply management modules 112 are sequentially arranged on the power supply bus 120, and a first switch 113 is arranged between two adjacent power supply management modules 112; the control module 111 is connected to each power supply management unit 1121, and each power supply management unit 1121 is connected to the power supply bus 120 through a second switch 1122.
It should be understood that the control module 111 is configured to control the first switch 113 to be in a closed state when detecting that the auxiliary power management system 110 meets the preset starting condition; the control module 111 is further configured to sequentially send grid-connection instructions to the power supply management unit 1121 according to a polling sequence when the first switch 113 is in a closed state; the control module 111 is further configured to, in the process of sequentially sending a grid connection instruction to the multiple power supply management units 1121, stop sending the grid connection instruction to the to-be-received power supply management unit 1121 if a grid connection success signal fed back by the target power supply management unit 1121 is received; the target power supply management unit 1121 is a power supply management unit 1121 which receives a grid-connected instruction and controls the second switch 1122 to be in a closed state, and the to-be-received power supply management unit 1121 is a power supply management unit 1121 which does not receive the grid-connected instruction; the power supply management unit to be received 1121 is configured to control the corresponding second switch 1122 to be in a closed state when power supply bus 120 is detected.
In this embodiment, for convenience of understanding, the example of setting the plurality of power supply management modules 112 as 4 is taken as an example for illustration, and the number of the power supply management modules may be set according to actual situations, which is not limited herein.
Referring to fig. 3, the four power supply management modules 112 are a first power supply management module 112, a second power supply management module 112, a third power supply management module 112 and a fourth power supply management module 112, and correspondingly, three first switches 113 are provided, which are a first switch a, a first switch b and a first switch c. The first power supply management module 112, the second power supply management module 112, the third power supply management module 112 and the fourth power supply management module 112 are sequentially arranged on the power supply bus 120, a first switch a is arranged between the first power supply management module 112 and the second power supply management module 112, a first switch b is arranged between the second power supply management module 112 and the third power supply management module 112, and a first switch c is arranged between the third power supply management module 112 and the fourth power supply management module 112.
The first power management module 112 includes a first power management unit 1121 and a second switch a, the second power management module 112 includes a second power management unit 1121 and a second switch b, the third power management module 112 includes a third power management unit 1121 and a second switch c, and the fourth power management module 112 includes a fourth power management unit 1121 and a second switch d. First power supply management unit 1121 is connected to first switch a through second switch a and power supply bus 120, second power supply management unit 1121 is connected to first switch a and first switch b through second switch b and power supply bus 120, third power supply management unit 1121 is connected to first switch b and first switch c through second switch c and power supply bus 120, and fourth power supply management unit 1121 is connected to first switch c through second switch d.
The control module 111 is connected to the first power supply management unit 1121, the second power supply management unit 1121, the third power supply management unit 1121, and the fourth power supply management unit 1121, and the control module 111 is further connected to the first switch a, the first switch b, and the first switch c.
It should be understood that the control module 111 is configured to control the first switch a, the first switch b, and the first switch c to be in the closed state when the preset starting condition is met.
The preset starting conditions include: each second switch 1122 is in an off state, no external short-circuit fault is fed back from each power supply management unit 1121, no short-circuit detection instruction is generated by the control module 111, no grid connection success signal is generated by each power supply management unit 1121, no independent power supply instruction is generated by the control module 111, and a complete start signal is generated by at least one power supply management unit 1121. Wherein the start complete signal may indicate that the ac start inside the power management module 112 is complete.
When the first switch a, the first switch b, and the first switch c are all in the closed state, the control module 111 sequentially sends grid-connection instructions to the 4 power supply management units 1121 according to the polling order. It is to be understood that the polling sequence may be set as the sequence of the first power supply management unit 1121, the second power supply management unit 1121, the third power supply management unit 1121, and the fourth power supply management unit 1121, that is, the control module 111 sequentially sends a grid connection instruction to the first power supply management unit 1121, the second power supply management unit 1121, the third power supply management unit 1121, and the fourth power supply management unit 1121.
The control module 111 is further configured to, in the process of sequentially sending a grid connection instruction to the multiple power supply management units 1121, stop sending the grid connection instruction to the to-be-received power supply management unit 1121 if a grid connection success signal fed back by the target power supply management unit 1121 is received; the target power supply management unit 1121 is a power supply management unit 1121 which receives a grid connection instruction and controls the second switch 1122 to be in a closed state, and the to-be-received power supply management unit 1121 is a power supply management unit 1121 which does not receive the grid connection instruction.
It should be understood that the control module 111 first sends a grid connection instruction to the first power supply management unit 1121, if a grid connection success signal fed back by the first power supply management unit 1121 is not received within a preset time, then sends the grid connection instruction to the second power supply management unit 1121 in sequence, and if a grid connection success signal fed back by the second power supply management unit 1121 is received within a preset time, the polling is finished, and the sending of the grid connection instruction to the third power supply management unit 1121 and the fourth power supply management unit 1121 is stopped. The third power supply management unit 1121 and the fourth power supply management unit 1121 are to-be-received power supply management units 1121, and the second power supply management unit 1121 is a target power supply management unit 1121. The premise that the second power supply management unit 1121 generates the grid connection success signal is that the second power supply management unit 1121 controls the second switch b to be in a closed state according to the grid connection instruction. The reason why the first power supply management unit 1121 does not generate the grid connection success signal is that the second switch a has a closed fault, that is, the first power supply management unit 1121 cannot control the second switch a to be in a closed state according to the grid connection instruction.
The power supply management unit to be received 1121 is configured to control the corresponding second switch 1122 to be in a closed state when power supply bus 120 is detected.
It should be understood that the power bus 120 with the four power management modules 112 is a path because all the first switches 113 are in the closed state. After the second power management unit 1121 controls the second switch b to be in the closed state, the second power management unit 1121 will provide power input to the power supply bus 120, and the third power management unit 1121 and the fourth power management unit 1121 control the second switch c and the second switch d to be in the closed state when detecting that the power supply bus 120 is powered on, so that the grid connection process is ended.
If the second power supply management unit 1121 supplies ac power to the power supply bus 120, the third power supply management unit 1121 and the fourth management unit automatically start grid connection when detecting that the phase sequence of the ac power on the power supply bus 120 is consistent, that is, automatically control the second switch c and the second switch d to be in a closed state.
In the grid connection process, if the auxiliary power supply management system 110 meets the preset starting condition, not all the first switches 113 are closed, that is, when the first switches 113 have a closed fault, the grid connection operation may also be performed, and the implementation principle thereof is as follows: the control module 111 is further configured to determine, when there is a closed fault in the first switch 113, the independent power supply management unit 1121 according to the first switch 113 that has the closed fault; among them, the independent power supply management unit 1121 is a power supply management unit 1121 disconnected from other power supply management units 1121; the control module 111 is further configured to send an independent power supply instruction to the independent power supply management unit 1121; the independent power supply management unit 1121 is configured to control the corresponding second switch 1122 to be in a closed state according to the independent power supply instruction.
The control module 111 centrally controls the plurality of power supply management modules 112 and the plurality of first switches 113, so that the grid connection process can be simplified, the time for starting the power supply management modules 112 in a time-sharing manner is shortened, and the running efficiency of the rail vehicle 100 is improved. Meanwhile, the first switch 113 is arranged between the plurality of power supply management modules 112, so that the power supply management modules 112 with single or multiple faults can be isolated, power supply of the rail vehicle 100 can be furthest performed under the condition that the power supply management modules 112 have faults, and driving safety is guaranteed.
The control module 111 is further configured to determine, according to the first switch 113 having the close fault, a grid-connected power supply management unit 1121; the grid-connected power supply management unit 1121 is a power supply management unit 1121 which is connected with other power supply management units 1121; the control module 111 is further configured to sequentially send a grid-connected instruction to the grid-connected power supply management unit 1121 according to the polling sequence; the control module 111 is further configured to, in the process of sequentially sending the grid-connected instruction to the grid-connected power supply management unit 1121, stop sending the grid-connected instruction to the to-be-received grid-connected power supply management unit 1121 if a grid-connected success signal fed back by the target grid-connected power supply management unit 1121 is received; the target grid-connected power supply management unit 1121 is a grid-connected power supply management unit 1121 which receives a grid-connected instruction and controls the second switch 1122 to be in a closed state, and the to-be-received grid-connected power supply management unit 1121 is a grid-connected power supply management unit 1121 which does not receive the grid-connected instruction; the grid-connected power supply management unit 1121 is configured to control the corresponding second switch 1122 to be in a closed state when detecting that power is supplied to the power supply bus 120.
It should be understood that if there is a closing failure of the first switch a, i.e., the first switch a cannot be closed, the first switch b and the first switch c are in a closed state, as shown in fig. 4. The first power supply management unit 1121 is an independent power supply management unit 1121, and the second power supply management unit 1121, the third power supply management unit 1121, and the fourth power supply management unit 1121 are grid-connected power supply management units 1121. For the first power supply management unit 1121, the control module 111 sends an independent power supply instruction to the first power supply management unit 1121, and sends a grid connection instruction to the second power supply management unit 1121, the third power supply management unit 1121, and the fourth power supply management unit 1121 in the polling order.
The first power supply management unit 1121 controls the second switch a to be in a closed state according to the independent power supply instruction. The control module 111 sends a grid connection instruction to the second power management unit 1121 first according to the polling sequence, and if the second power management unit 1121 does not feed back a grid connection success signal to the control module 111 within a preset time. The control module 111 sends a grid connection instruction to the third power supply management unit 1121 according to the polling sequence, and if the third power supply management unit 1121 feeds back a grid connection success signal to the control module 111 within a preset time, the control module 111 stops sending the grid connection instruction to the fourth power supply management unit 1121.
The third power supply management unit 1121 is a target grid-connected power supply management unit 1121, and the fourth power supply management unit 1121 is a to-be-received grid-connected power supply management unit 1121.
Since the first switch b and the first switch c are both in a closed state, the power supply bus 120 where the second power supply management module 112, the third power supply management module 112, and the fourth power supply management module 112 are located is a path. When the third power management unit 1121 controls the second switch c to be in the closed state, the third power management unit 1121 will provide power input to the power supply bus 120, and when the fourth power management unit 1121 detects that there is power on the power supply bus 120, the fourth power management unit 1121 controls the second switch d to be in the closed state, so that the grid connection process is ended.
As shown in fig. 5, if there is a closing failure of the first switch b, that is, the first switch b cannot be closed, the first switch a and the first switch c are in a closed state. The first power supply management unit 1121, the second power supply management unit 1121, the third power supply management unit 1121, and the fourth power supply management unit 1121 are all grid-connected power supply management units 1121. Only first power supply bus 120 where first power supply management unit 1121 and second power supply management unit 1121 are located is in a conducting state, second power supply bus 120 where third power supply management unit 1121 and fourth power supply management unit 1121 are located is in a conducting state, and first power supply bus 120 and second power supply bus 120 are in a disconnecting state, that is, first switch b isolates power supply bus 120 into two lines of first power supply bus 120 and second power supply bus 120.
For this situation, the control module 111 is divided into two logic control portions, that is, the control module 111 generates a first grid-connection instruction and a second grid-connection instruction at the same time, transmits the first grid-connection instruction to the first power supply management unit 1121 and the second power supply management unit 1121 in the polling order, and transmits the second grid-connection instruction to the third power supply management unit 1121 and the fourth power supply management unit 1121 in the polling order.
The control module 111 sends a first grid connection instruction to the first power management unit 1121 according to the polling sequence, and if the first power management unit 1121 feeds back a grid connection success signal to the control module 111 within a preset time, the control module 111 stops sending the first grid connection instruction to the second power management unit 1121. The first power supply management unit 1121 is a target grid-connected power supply management unit 1121, and the second power supply management unit 1121 is a to-be-received grid-connected power supply management unit 1121.
Since the first switch a is in a closed state, the first power supply bus 120 where the first power supply management module 112 and the second power supply management module 112 are located is a passage. When the first power management unit 1121 controls the second switch a to be in the closed state, the first power management unit 1121 will provide power input to the first power bus 120, and when the second power management unit 1121 detects that there is power on the first power bus 120, the second switch b is controlled to be in the closed state, so that the grid connection process of the first power management module 112 and the second power management module 112 is completed.
Meanwhile, the control module 111 sends a second grid-connected instruction to the third power management unit 1121 first according to the polling sequence, and if the third power management unit 1121 feeds back a grid-connected success signal to the control module 111 within a preset time, the control module 111 stops sending the second grid-connected instruction to the fourth power management unit 1121. The third power supply management unit 1121 is a target grid-connected power supply management unit 1121, and the fourth power supply management unit 1121 is a to-be-received grid-connected power supply management unit 1121.
Since the first switch c is in a closed state, the second power supply bus 120 where the third power supply management module 112 and the fourth power supply management module 112 are located is a passage. When the third power management unit 1121 controls the second switch c to be in the closed state, the third power management unit 1121 will provide power input to the second power bus 120, and when the fourth power management unit 1121 detects that there is power on the second power bus 120, the second switch d is controlled to be in the closed state, so that the grid connection process of the third power management module 112 and the fourth power management module 112 is completed.
As shown in fig. 6, if there is a closing failure in both the first switch a and the first switch b, that is, the first switch a and the first switch b cannot be closed, and the first switch c is in a closed state. The first power supply management unit 1121 and the second power supply management unit 1121 are independent power supply management units 1121, and the third power supply management unit 1121 and the fourth power supply management unit 1121 are grid-connected power supply management units 1121. For the first power supply management unit 1121 and the second power supply management unit 1121, the control module 111 sends an independent power supply instruction to the first power supply management unit 1121, and sends a grid connection instruction to the third power supply management unit 1121 and the fourth power supply management unit 1121 in a polling order.
As shown in fig. 7, if the first switch a, the first switch b and the first switch c all have a closing fault, that is, the first switch a, the first switch b and the first switch c cannot be closed. The first power supply management unit 1121, the second power supply management unit 1121, the third power supply management unit 1121, and the fourth power supply management unit 1121 are independent power supply management units 1121. The control module 111 sends independent power supply instructions to the first power supply management unit 1121, the second power supply management unit 1121, the third power supply management unit 1121, and the fourth power supply management unit 1121, respectively.
In which case the first switch 113 produces a closed fault, which is not fully enumerated herein, as well as other situations, which are not enumerated herein.
In view of the second problem in the prior art, the embodiment of the present application further provides that the control module 111 is configured to send a short-circuit detection instruction to the power supply management unit 1121 when a short-circuit fault trigger condition is met; the power supply management unit 1121 is configured to perform short-circuit fault detection according to the short-circuit detection instruction, and send a detection result to the control module 111; the control module 111 is further configured to continue to sequentially send grid-connected instructions to the power supply management unit 1121 according to the polling order when the detection result is no fault; the control module 111 is further configured to generate a fault indication signal if the detection result is a fault.
It should be understood that the short-circuit fault triggering condition includes that the second switch 1122 corresponding to the power supply management unit 1121 is in an open state, the first switch 113 between two adjacent power supply management units 1121 is in a closed state, and any power supply management unit 1121 generates external short-circuit fault information.
In other words, the power supply management unit 1121, to which the control module 111 sends the short circuit detection instruction, is the grid-connected power supply management unit 1121. The external short-circuit fault information generated by any power management unit 1121 may be: the power supply management unit 1121 detects a potential short-circuit fault. Potential short-circuit faults are uncertain whether they occur, and uncertain whether they are external or internal short-circuit faults.
Since the plurality of power supply management units 1121 simultaneously perform short-circuit fault detection, the pantograph-catenary current is insufficient, and a top-grid fault occurs. Therefore, the present application may also adopt that after receiving the short circuit detection instruction, the multiple power supply management units 1121 sequentially perform short circuit fault detection according to a default order, and send a detection result to the control module 111.
The short-circuit fault detection includes internal short-circuit detection and external short-circuit detection, and the power supply management unit 1121 is further configured to perform the internal short-circuit detection according to the short-circuit detection instruction; the control module 111 is further configured to send an independent power supply instruction to the power supply management unit 1121 under the condition that there is no internal short circuit fault; the power supply management unit 1121 is further configured to control the corresponding second switch 1122 to be in a closed state according to the independent power supply instruction; power supply management unit 1121 is also used for performing external short circuit detection when corresponding second switch 1122 is in a closed state; the power supply management unit 1121 is also configured to send external short-circuit fault information to the control module 111 if it detects that there is an external short-circuit fault.
It should be understood that, after receiving the short circuit detection instruction, the power supply management unit 1121 performs internal short circuit detection, and when detecting that there is no internal short circuit fault, sends internal detection normal information to the control module 111, the control module 111 sends an independent power supply instruction to the power supply management unit 1121 according to the internal detection normal information, the power supply management unit 1121 controls the corresponding second switch 1122 to be in a closed state according to the independent power supply instruction, performs external short circuit detection, and when detecting that there is an external short circuit fault, sends external short circuit fault information to the control module 111.
When power supply management section 1121 detects an internal short-circuit fault when performing internal short-circuit detection, it sends internal short-circuit fault information to control module 111, and stops performing short-circuit detection. If the external short circuit fault is not detected when the power supply management unit 1121 performs external short circuit detection, it sends external detection normal information to the control module 111, and the control module 111 sends a grid connection instruction according to the external detection normal information to re-execute a grid connection power supply process.
The method and the device can detect the external short-circuit fault and can also locate the external short-circuit fault. The realization principle is as follows: the control module 111 is further configured to control the first switch 113 connected to the power supply management unit 1121 to be in an off state according to the external short-circuit fault information.
It should be understood that in the case where all the first switches 113 are in the closed state, the power supply management unit 1121 detects that there is an external short-circuit fault, and since all the power supply management units 1121, all the first switches 113, and the entire power supply bus bar 120 are in the through path, it is not known where the external short-circuit fault occurs in particular. Therefore, the first switch 113 is turned off, each power supply management unit 1121 is an independent unit with the connected first switch 113 and the power supply bus 120, and if one or more of the power supply management units 1121 continues to feed back the external short-circuit fault information, it indicates that the independent unit where the power supply management unit 1121 is located is a position for sending the external short-circuit fault.
After determining the power supply management unit 1121 that generates the external short-circuit fault, the first switch 113 connected to the power supply management unit 1121 that generates the external short-circuit fault is continuously in the off state to isolate the power supply management unit 1121 that generates the external short-circuit fault, and at the same time, the power supply management unit 1121 that generates the external short-circuit fault controls the corresponding second switch 1122 to be in the off state. The control module 111 sends a grid connection instruction or an independent power supply instruction to the power supply management unit 1121 without the short circuit fault, and continues the grid connection process.
It can be seen that, under the short-circuit fault condition, the power supply management unit 1121 with the short-circuit fault is isolated, and the power supply management unit 1121 without the short-circuit fault continues to perform the grid connection process, so that the efficiency of grid connection success can be improved, and the fault operation capability of the rail vehicle 100 can be improved.
In view of the third problem in the prior art, the embodiment of the present application further provides that the auxiliary power supply management system 110 further includes a plurality of storage batteries 114, the plurality of power supply management units 1121 are connected to the plurality of storage batteries 114 in a one-to-one correspondence manner, and the control module 111 is connected to each storage battery 114.
The control module 111 is further configured to control the first switch 113 connected to the low-voltage power supply management unit 1121 to be in an off state and send an independent power supply instruction to the low-voltage power supply management unit 1121, when the storage battery 114 feeds back low-voltage information; the low-voltage power supply management unit 1121 is a power supply management unit 1121 connected to the low-voltage battery 114, and the low-voltage battery 114 is the battery 114 for feeding back low-voltage information; the low-voltage power supply management unit 1121 is configured to control the corresponding second switch 1122 to be in a closed state according to the independent power supply instruction.
It should be understood that when any storage battery 114 feeds back low-voltage information, the control module 111 controls the first switch 113 connected to the low-voltage power supply management unit 1121 to be in an off state, and sends an independent power supply instruction to the low-voltage power supply management unit 1121, so that the low-voltage storage battery 114 can be charged in an emergency, and meanwhile, a grid connection instruction or an independent power supply instruction is not issued to other power supply management units 1121, and the first switch 113 is not closed, so that the low-voltage storage battery 114 is charged quickly, and the working efficiency of the rail vehicle 100 is improved.
In this embodiment, the control module 111 may be a newly added module, or a vehicle control unit of the rail vehicle 100 may be used as the control module 111, which is not limited herein and may be set according to actual situations.
Next, on the basis of the control module 111 shown in fig. 2, an auxiliary power supply management method is provided in the embodiment of the present application, please refer to fig. 8, and fig. 8 is a flowchart illustrating the auxiliary power supply management method provided in the embodiment of the present application, where the auxiliary power supply management method may include the following steps:
s201, the control module controls the first switch to be in a closed state under the condition that the control module detects that the auxiliary power supply management system meets the preset starting condition.
S202, the control module sends grid-connected instructions to the power supply management unit in sequence according to the polling sequence under the condition that the first switch is in a closed state.
S203, in the process that the control module sequentially sends grid-connection instructions to the plurality of power supply management units, if a grid-connection success signal fed back by the target power supply management unit is received, the control module stops sending the grid-connection instructions to the power supply management unit to be received.
It should be understood that the control module 111 can implement the contents in S201-S203, and of course, other functions of the control module 111 are also contents of the auxiliary power supply management method, and reference may be made to the description of the functions of the control module 111, which will not be repeated herein.
In summary, the present application provides an auxiliary power supply management system, a method and a rail vehicle, where the auxiliary power supply management system includes a control module, a plurality of power supply management modules and a plurality of first switches; each power supply management module comprises a power supply management unit and a second switch, the power supply management modules are sequentially arranged on the power supply bus, and a first switch is arranged between every two adjacent power supply management modules; the control module is connected with each power supply management unit, and each power supply management unit is connected with a power supply bus through a second switch; the control module is used for controlling the first switch to be in a closed state under the condition that the auxiliary power supply management system is detected to meet the preset starting condition; the control module is also used for sequentially sending grid-connected instructions to the power supply management unit according to the polling sequence under the condition that the first switch is in a closed state; the control module is also used for stopping sending the grid-connected instruction to the power supply management unit to be received if a grid-connected success signal fed back by the target power supply management unit is received in the process of sending the grid-connected instruction to the plurality of power supply management units in sequence; the target power supply management unit is a power supply management unit which receives a grid-connected instruction and controls the second switch to be in a closed state, and the power supply management unit to be received is a power supply management unit which does not receive the grid-connected instruction; the power supply management unit to be received is used for controlling the corresponding second switch to be in a closed state under the condition that the power supply bus is detected to be electrified.
In the process of controlling grid connection, if one of the power supply management units is successfully connected to the grid, the control module stops controlling the power supply management unit to be received to be connected to the grid, and the power supply management unit to be received detects the power-on condition of the power supply bus to automatically perform grid connection action. Compared with the prior art, the control module only needs to control one of the power supply management units to be successfully connected to the grid, and does not need to control each power supply management unit to be successfully connected to the grid, so that the grid connection process of the control module is simplified, the interaction steps of the control module and the power supply management units are reduced, and the time-sharing starting grid connection time of the power supply management modules is shortened. Due to the fact that the grid-connected process of the control module is simplified, the error rate of the control process of the control module is reduced, and the running efficiency of the rail vehicle is improved. Meanwhile, the first switch is arranged among the plurality of power supply management modules, so that the power supply management modules with single or multiple faults can be isolated, the power supply of the rail vehicle can be furthest ensured under the condition that the power supply management modules have faults, and the driving safety is ensured.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (12)
1. An auxiliary power supply management system is characterized by comprising a control module, a plurality of power supply management modules and a plurality of first switches; each power supply management module comprises a power supply management unit and a second switch, the power supply management modules are sequentially arranged on a power supply bus, and one first switch is arranged between every two adjacent power supply management modules; the control module is connected with each power supply management unit, and each power supply management unit is connected with the power supply bus through the second switch;
the control module is used for controlling the first switch to be in a closed state under the condition that the auxiliary power supply management system is detected to meet a preset starting condition;
the control module is further used for sequentially sending grid-connected instructions to the power supply management unit according to a polling sequence under the condition that the first switch is in a closed state;
the control module is further used for stopping sending the grid-connected instruction to the power supply management unit to be received if a grid-connected success signal fed back by the target power supply management unit is received in the process of sequentially sending the grid-connected instruction to the plurality of power supply management units; the target power supply management unit is a power supply management unit which receives the grid-connected instruction and controls the second switch to be in a closed state, and the to-be-received power supply management unit is a power supply management unit which does not receive the grid-connected instruction;
and the power supply management unit to be received is used for controlling the corresponding second switch to be in a closed state under the condition that the power supply bus is detected to be electrified.
2. The auxiliary power management system of claim 1, wherein the preset startup conditions comprise: each second switch is in an off state, each power supply management unit does not feed back an external short-circuit fault, the control module does not generate a short-circuit detection instruction, each power supply management unit does not generate the grid-connection success signal, the control module does not generate an independent power supply instruction, and at least one power supply management unit generates a complete starting signal.
3. The auxiliary power supply management system according to claim 1, wherein the control module is further configured to determine an independent power supply management unit according to the first switch having a closed fault, if the first switch has a closed fault; the independent power supply management unit is a power supply management unit disconnected with other power supply management units;
the control module is also used for sending an independent power supply instruction to the independent power supply management unit;
and the independent power supply management unit is used for controlling the corresponding second switch to be in a closed state according to the independent power supply instruction.
4. The auxiliary power supply management system according to claim 1, wherein the control module is further configured to determine a grid-connected power supply management unit according to the first switch with the closed fault, if the first switch has the closed fault; the grid-connected power supply management unit is a power supply management unit which is connected with other power supply management units;
the control module is also used for sequentially sending the grid-connected instructions to the grid-connected power supply management unit according to a polling sequence;
the control module is further used for stopping sending the grid-connected instruction to the to-be-received grid-connected power supply management unit if a grid-connected success signal fed back by the target grid-connected power supply management unit is received in the process of sequentially sending the grid-connected instruction to the grid-connected power supply management unit; the target grid-connected power supply management unit is a grid-connected power supply management unit which receives the grid-connected instruction and controls the second switch to be in a closed state, and the to-be-received grid-connected power supply management unit is a grid-connected power supply management unit which does not receive the grid-connected instruction;
and the grid-connected power supply management unit to be received is used for controlling the corresponding second switch to be in a closed state under the condition that the power supply bus is detected to be electrified.
5. The auxiliary power supply management system according to claim 1 or 4, wherein the control module is configured to send a short circuit detection instruction to the power supply management unit when a short circuit fault trigger condition is satisfied;
the power supply management unit is used for carrying out short-circuit fault detection according to the short-circuit detection instruction and sending a detection result to the control module;
the control module is further used for continuously sending grid-connected instructions to the power supply management unit in sequence according to the polling sequence under the condition that the detection result is no fault;
the control module is also used for generating a fault prompt signal under the condition that the detection result is faulty.
6. The auxiliary power management system according to claim 5, wherein the short-circuit fault trigger condition includes that the second switch corresponding to the power management unit is in an open state, the first switch between two adjacent power management units is in a closed state, and any one of the power management units generates external short-circuit fault information.
7. The auxiliary power management system of claim 5 wherein said short fault detection comprises internal short detection and external short detection;
the power supply management unit is also used for carrying out internal short circuit detection according to the short circuit detection instruction;
the control module is also used for sending an independent power supply instruction to the power supply management unit under the condition of no internal short circuit fault;
the power supply management unit is also used for controlling the corresponding second switch to be in a closed state according to the independent power supply instruction;
the power supply management unit is also used for carrying out external short circuit detection under the condition that the corresponding second switch is in a closed state;
the power supply management unit is also used for sending external short-circuit fault information to the control module under the condition that the external short-circuit fault is detected.
8. The auxiliary power management system according to claim 7, wherein the control module is further configured to control a first switch connected to the power management unit to be in an off state according to the external short-circuit fault information.
9. The auxiliary power supply management system according to claim 1, further comprising a plurality of storage batteries, wherein the plurality of power supply management units are connected with the plurality of storage batteries in a one-to-one correspondence, and the control module is connected with each storage battery;
the control module is also used for controlling a first switch connected with the low-voltage power supply management unit to be in a disconnected state under the condition that the storage battery feeds back low-voltage information, and sending an independent power supply instruction to the low-voltage power supply management unit; the low-voltage power supply management unit is connected with a low-voltage storage battery, and the low-voltage storage battery is used for feeding back low-voltage information;
and the low-voltage power supply management unit is used for controlling the corresponding second switch to be in a closed state according to the independent power supply instruction.
10. An auxiliary power supply management method is characterized in that the auxiliary power supply management method is applied to a control module of an auxiliary power supply management system, the auxiliary power supply management system further comprises a plurality of power supply management modules and a plurality of first switches, each power supply management module comprises a power supply management unit and a second switch, the plurality of power supply management modules are sequentially arranged on a power supply bus, and one first switch is arranged between every two adjacent power supply management modules; the control module is connected with each power supply management unit, and each power supply management unit is connected with the power supply bus through the second switch:
the control module controls the first switch to be in a closed state under the condition that the control module detects that the auxiliary power supply management system meets a preset starting condition;
the control module sequentially sends grid-connected instructions to the power supply management unit according to a polling sequence under the condition that the first switch is in a closed state;
in the process that the control module sequentially sends grid-connected instructions to the plurality of power supply management units, if a grid-connected success signal fed back by a target power supply management unit is received, the control module stops sending the grid-connected instructions to the power supply management unit to be received; the target power supply management unit is a power supply management unit which receives the grid-connected instruction and controls the second switch to be in a closed state, and the to-be-received power supply management unit is a power supply management unit which does not receive the grid-connected instruction.
11. The auxiliary power management method according to claim 10, wherein the preset starting condition comprises: each second switch is in an off state, each power supply management unit feeds back an external short-circuit fault, the control module does not generate a short-circuit detection instruction, each power supply management unit does not generate the grid-connection success signal, the control module does not generate an independent power supply instruction, and at least one power supply management unit generates a complete starting signal.
12. A rail vehicle, characterized in that it comprises an auxiliary power management system according to any one of claims 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110856483.5A CN113659617A (en) | 2021-07-28 | 2021-07-28 | Auxiliary power supply management system and method and railway vehicle |
| PCT/CN2021/133402 WO2023005078A1 (en) | 2021-07-28 | 2021-11-26 | Auxiliary power supply management system and method, and railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110856483.5A CN113659617A (en) | 2021-07-28 | 2021-07-28 | Auxiliary power supply management system and method and railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113659617A true CN113659617A (en) | 2021-11-16 |
Family
ID=78490770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110856483.5A Pending CN113659617A (en) | 2021-07-28 | 2021-07-28 | Auxiliary power supply management system and method and railway vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113659617A (en) |
| WO (1) | WO2023005078A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005078A1 (en) * | 2021-07-28 | 2023-02-02 | 中车唐山机车车辆有限公司 | Auxiliary power supply management system and method, and railway vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038565A (en) * | 2018-08-16 | 2018-12-18 | 中车唐山机车车辆有限公司 | The grid-connected method of supplying power to of auxiliary power supply system and management system |
| CN109109680A (en) * | 2018-08-21 | 2019-01-01 | 中车大连机车车辆有限公司 | Grid-connected electric power supply control system and city rail vehicle for city rail vehicle |
| CN111994128A (en) * | 2020-08-18 | 2020-11-27 | 中车青岛四方车辆研究所有限公司 | Grid-connected control method and system for auxiliary inverter of urban rail train |
| US20200412167A1 (en) * | 2019-06-06 | 2020-12-31 | Beijing Sifang Automation Co., Ltd. | Method and system for fast reconfiguration of power supply network in tens of milliseconds after power grid failure |
| CN112277643A (en) * | 2020-09-27 | 2021-01-29 | 中车长春轨道客车股份有限公司 | Auxiliary system starting time optimization control method based on TCMS |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846664B (en) * | 2016-05-12 | 2018-07-24 | 株洲中车时代电气股份有限公司 | Subordinate inverter orderly start control method under a kind of train emergency work condition |
| EP3793220B1 (en) * | 2019-09-10 | 2024-04-10 | SpeedInnov | Sound diffusion system embedded in a railway vehicle and associated vehicle, method and computer program |
| CN113659617A (en) * | 2021-07-28 | 2021-11-16 | 中车唐山机车车辆有限公司 | Auxiliary power supply management system and method and railway vehicle |
-
2021
- 2021-07-28 CN CN202110856483.5A patent/CN113659617A/en active Pending
- 2021-11-26 WO PCT/CN2021/133402 patent/WO2023005078A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038565A (en) * | 2018-08-16 | 2018-12-18 | 中车唐山机车车辆有限公司 | The grid-connected method of supplying power to of auxiliary power supply system and management system |
| CN109109680A (en) * | 2018-08-21 | 2019-01-01 | 中车大连机车车辆有限公司 | Grid-connected electric power supply control system and city rail vehicle for city rail vehicle |
| US20200412167A1 (en) * | 2019-06-06 | 2020-12-31 | Beijing Sifang Automation Co., Ltd. | Method and system for fast reconfiguration of power supply network in tens of milliseconds after power grid failure |
| CN111994128A (en) * | 2020-08-18 | 2020-11-27 | 中车青岛四方车辆研究所有限公司 | Grid-connected control method and system for auxiliary inverter of urban rail train |
| CN112277643A (en) * | 2020-09-27 | 2021-01-29 | 中车长春轨道客车股份有限公司 | Auxiliary system starting time optimization control method based on TCMS |
Non-Patent Citations (2)
| Title |
|---|
| 曾光: "广州地铁A7型车辅助逆变器并网异常故障分析与处理", 《机电工程技术》, vol. 50, no. 01, pages 189 - 193 * |
| 李海新;胡禹峰;屈海洋;叶锋;: "深圳地铁11号线车辆辅助交流供电***控制研究与设计", 电力机车与城轨车辆, no. 05, pages 20 - 23 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005078A1 (en) * | 2021-07-28 | 2023-02-02 | 中车唐山机车车辆有限公司 | Auxiliary power supply management system and method, and railway vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023005078A1 (en) | 2023-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6831281B2 (en) | Battery monitoring system and battery monitoring device | |
| US11183918B2 (en) | Abnormality determination system | |
| US8165743B2 (en) | Controller for inverter | |
| JP5446283B2 (en) | Vehicle charging control device | |
| CN109606192B (en) | Power supply system, method and device of electric intelligent automobile and storage medium | |
| US20170008418A1 (en) | Electronic control device for controlling a vehicle battery pack and system employing such a device | |
| KR20160035092A (en) | Electric vehicle control device | |
| CN104590027A (en) | High-voltage switching-off control method and system of automobile and automobile with high-voltage switching-off control system | |
| CN106936173A (en) | Method for charging battery pack and equipment | |
| JPWO2018180520A1 (en) | Monitoring device and power storage system | |
| KR20200125879A (en) | System and method for controlling low voltage dc-dc converter for vehicle | |
| US7071580B2 (en) | Uninterruptible power supply apparatus | |
| CN113659617A (en) | Auxiliary power supply management system and method and railway vehicle | |
| CN113022313B (en) | VCU power-off protection circuit, power-off control method, system and engineering machinery | |
| CN109038565B (en) | Grid-connected power supply method and management system for auxiliary power supply system | |
| JP5633458B2 (en) | Fuel cell system | |
| CN117318265A (en) | Power supply processing method, power supply system and vehicle | |
| US20220024318A1 (en) | Independent high voltage interlocking loop systems | |
| JP5146514B2 (en) | Switching device, switching device control method, switching device control program | |
| CN114825462B (en) | Safety power supply control system and method | |
| CN116418080A (en) | Power supply control method, power conversion device, energy storage device and storage medium | |
| KR20200124786A (en) | System and method for diagnosing battery sensor | |
| JP2017093008A (en) | Contactor failure determination device and contactor failure determination method | |
| CN114290906A (en) | High-voltage control device, control method and aircraft | |
| JP2020029200A (en) | Vehicular power supply system |
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 |