CN108572574B - High-voltage network side circuit of motor vehicle in motor train unit and control method thereof - Google Patents
High-voltage network side circuit of motor vehicle in motor train unit and control method thereof Download PDFInfo
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- CN108572574B CN108572574B CN201810479788.7A CN201810479788A CN108572574B CN 108572574 B CN108572574 B CN 108572574B CN 201810479788 A CN201810479788 A CN 201810479788A CN 108572574 B CN108572574 B CN 108572574B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- 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
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- 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
- B60M3/04—Arrangements for cutting in and out of individual track sections
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Abstract
The application discloses a high-voltage network side circuit of a power vehicle in a motor train unit, which comprises a plurality of parallel power receiving branches, side-connected branches, a mode input detection circuit and a controller; the bypass branch comprises a high-voltage isolating switch of which the first end is connected with the output end of the power receiving branch, and the second end of the high-voltage isolating switch is used as a bypass point to be connected with the bypass points of other power vehicles; the mode input detection circuit is used for detecting a mode selection instruction input by a user; the controller is used for sending a closing instruction to the high-voltage isolating switch when a user inputs a double-power vehicle traction mode instruction and sending a switching-off instruction to the high-voltage isolating switch when the user inputs a single-power vehicle traction mode instruction; and controls any powered branch to conduct so as to output power supply. The method and the device can simultaneously improve the flexible applicability and the safety of the circuit to different grouping modes. The application also discloses a control method and equipment of the high-voltage network side circuit of the motor vehicle in the motor train unit and a computer readable storage medium, and the beneficial effects are also achieved.
Description
Technical Field
The application relates to the technical field of rail vehicle power supply, in particular to a high-voltage network side circuit of a power vehicle in a motor train unit, a control method and equipment thereof, and a computer readable storage medium.
Background
With the development of science and technology in China, great progress is made in the technical field of rail transit.
In the field of rail transit, a motor train unit refers to a motor train unit formed by connecting a plurality of power cars and a plurality of trailers. The motor train unit with centralized power is a motor train unit with power devices installed on power cars at two ends of a train in a centralized mode, and has the advantages of convenience in maintenance, high safety and the like.
For a power centralized motor train unit, two grouping modes are generally available, namely a single-power train traction mode and a double-power train traction mode. The traction mode of the single-power vehicle is suitable for a small passenger traffic flow scene because only one power vehicle is provided, and the vehicle group structure is 'power vehicle + trailer + control vehicle'; the double-power-vehicle traction mode can be used for a large-passenger traffic flow scene due to the fact that two power vehicles are arranged, more trailers can be pulled, and the structure of the vehicle group is 'power vehicle + trailer + power vehicle'.
These two different grouping modes have different requirements on the structure of the high-voltage network-side circuit of the motor vehicle. However, the high-voltage network side circuit of the power vehicle in the prior art cannot be simultaneously applied to the two grouping modes, or cannot give consideration to the redundancy protection of main components in the circuit, so that the improvement is needed.
Therefore, what kind of high-voltage network side circuit of a power vehicle in a motor train unit is adopted to realize flexible grouping and redundant protection of the circuit in different modes at the same time, so as to improve flexible applicability and safety at the same time, and technical problems to be solved by technical staff in the field are needed.
Disclosure of Invention
The application aims to provide a high-voltage network side circuit of a power vehicle in a motor train unit, a control method and equipment of the high-voltage network side circuit, and a computer readable storage medium, so that flexible grouping and redundant protection of the circuit in different modes can be achieved at the same time, and flexible applicability and safety are improved at the same time.
In order to solve the technical problem, the application provides a high-voltage network side circuit of a power vehicle in a motor train unit, which comprises a plurality of parallel power receiving branches, bypass branches used for being electrically connected with other power vehicles in the motor train unit, a mode input detection circuit and a controller;
the power receiving branch comprises a main circuit breaker and a pantograph, wherein the pantograph is installed between a first end of the main circuit breaker and a high-voltage power grid contact line; the second ends of the main circuit breakers are connected with each other to serve as the output ends of the power receiving branches which are connected in parallel and are used for being connected with a primary winding of a traction transformer of the power vehicle;
the bypass branch comprises a high-voltage isolating switch of which the first end is connected with the output end of the power receiving branch, and the second end of the high-voltage isolating switch is used as a bypass point and is used for being connected with the bypass points of other motor vehicles in the motor train unit;
the mode input detection circuit is used for detecting a mode selection instruction input by a user;
the controller is connected with the mode input detection circuit and is respectively coupled with the main circuit breaker, the pantograph and the high-voltage isolating switch; the high-voltage isolating switch is used for sending a closing instruction to the high-voltage isolating switch when the mode selection instruction is a dual-power vehicle traction mode instruction, and sending a switching-off instruction to the high-voltage isolating switch when the mode selection instruction is a single-power vehicle traction mode instruction; and controlling any power receiving branch to be conducted so as to output power supply.
Optionally, the number of the power receiving branches is two;
the controller is specifically configured to:
judging whether the pantograph and the main circuit breaker in the first power receiving branch have no fault or not;
if yes, sending a pantograph lifting instruction to the pantograph in the first power receiving branch, and sending a closing instruction to the main circuit breaker in the first power receiving branch; so that the first power receiving branch is conducted to output power supply;
if not, judging whether the pantograph and the main circuit breaker in the second power receiving branch circuit have no fault; if yes, sending a pantograph lifting instruction to the pantograph in the second power receiving branch, and sending a closing instruction to the main circuit breaker in the second power receiving branch; so that the second power receiving branch is conducted to output power supply.
Optionally, the bypass point is specifically configured to:
and the high-voltage jumper is connected with the bypass points of other motor vehicles in the motor train unit.
Optionally, the pantograph numbers in each of the power receiving branches are the same.
The application also provides a control method of the high-voltage network side circuit of the motor vehicle in the motor train unit, which is applied to the controller in the high-voltage network side circuit and comprises the following steps:
acquiring a mode selection instruction input by a user; the mode selection command comprises a double-power vehicle traction mode command or a single-power vehicle traction mode command;
judging whether the mode selection instruction is a dual-power vehicle traction mode instruction or not;
if yes, sending a closing instruction to the high-voltage isolating switch; if not, sending a turn-off instruction to the high-voltage isolating switch;
and controlling any power receiving branch to be conducted so as to output power supply.
Optionally, the number of the power receiving branches is two;
the controlling of the closing of any of the powered branches to output power comprises:
judging whether the pantograph and the main circuit breaker in the first power receiving branch circuit have no fault;
if yes, sending a pantograph lifting instruction to the pantograph in the first power receiving branch, and sending a closing instruction to the main circuit breaker in the first power receiving branch; so that the first power receiving branch is conducted to output power supply;
if not, judging whether the pantograph and the main circuit breaker in the second power receiving branch circuit have no fault; if yes, sending a pantograph lifting instruction to the pantograph in the second power receiving branch, and sending a closing instruction to the main circuit breaker in the second power receiving branch; so that the second power receiving branch is conducted to output power supply.
Optionally, the bypass point is specifically configured to:
and the high-voltage jumper is connected with the bypass points of other motor vehicles in the motor train unit.
Optionally, the pantograph numbers in each of the power receiving branches are the same.
The application also provides a control device of a high-voltage network side circuit of a power car in the motor train unit, which comprises:
a memory: for storing a computer program;
a processor: for executing the computer program to realize the steps of the control method of the high-voltage network-side circuit of a motor vehicle in any one of the motor train units as described above.
The present application also provides a computer-readable storage medium having a computer program stored therein, which, when executed by a processor, implements the steps of any one of the above-described methods for controlling a high-voltage network-side circuit of a motor vehicle of a motor train unit.
The high-voltage network side circuit of the power vehicles in the motor train unit comprises a plurality of parallel power receiving branches, bypass branches used for being electrically connected with other power vehicles in the motor train unit, a mode input detection circuit and a controller; the power receiving branch comprises a main circuit breaker and a pantograph, wherein the pantograph is installed between a first end of the main circuit breaker and a high-voltage power grid contact line; the second ends of the main circuit breakers are connected with each other to serve as the output ends of the power receiving branches which are connected in parallel and are used for being connected with a primary winding of a traction transformer of the power vehicle; the bypass branch comprises a high-voltage isolating switch of which the first end is connected with the output end of the power receiving branch, and the second end of the high-voltage isolating switch is used as a bypass point and is used for being connected with the bypass points of other motor vehicles in the motor train unit; the mode input detection circuit is used for detecting a mode selection instruction input by a user; the controller is connected with the mode input detection circuit and is respectively coupled with the main circuit breaker, the pantograph and the high-voltage isolating switch; the high-voltage isolating switch is used for sending a closing instruction to the high-voltage isolating switch when the mode selection instruction is a dual-power vehicle traction mode instruction, and sending a switching-off instruction to the high-voltage isolating switch when the mode selection instruction is a single-power vehicle traction mode instruction; and controlling any power receiving branch to be conducted so as to output power supply.
It is thus clear that compare in prior art, in the high-voltage network side circuit of motor car among the EMUs that this application provided, through setting up the parallelly connected power receiving branch road of multiunit in order effectively realizing the redundant protection to the circuit, can also be applicable to single power car traction mode and double dynamical car traction mode in a flexible way through the break-make of control side-by-side branch road, consequently this application can effectively improve the nimble suitability and the security of circuit simultaneously. The control method, the control device and the computer readable storage medium of the high-voltage network side circuit of the motor vehicle in the motor train unit are suitable for the high-voltage network side circuit and also have the beneficial effects.
Drawings
In order to more clearly illustrate the technical solutions in the prior art and the embodiments of the present application, the drawings that are needed to be used in the description of the prior art and the embodiments of the present application will be briefly described below. Of course, the following description of the drawings related to the embodiments of the present application is only a part of the embodiments of the present application, and it will be obvious to those skilled in the art that other drawings can be obtained from the provided drawings without any creative effort, and the obtained other drawings also belong to the protection scope of the present application.
Fig. 1 is a structural diagram of a high-voltage network side circuit of a motor vehicle in a motor train unit provided by the present application;
fig. 2 is a flowchart of a control method of a high-voltage network side circuit of a motor vehicle in a motor train unit according to the present application.
Detailed Description
The core of the application is to provide a high-voltage network side circuit of a power vehicle in a motor train unit, a control method and equipment thereof, and a computer readable storage medium, so that flexible grouping and redundant protection of the circuit in different modes can be realized at the same time, and the flexible applicability and safety can be improved at the same time.
In order to more clearly and completely describe the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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 application.
Referring to fig. 1, fig. 1 is a structural diagram of a high voltage network side circuit of a power vehicle in a motor train unit provided by the present application; the system comprises a plurality of parallel power receiving branches 1, bypass branches 2 used for being electrically connected with other motor vehicles in the motor train unit, a mode input detection circuit 3 and a controller 4;
the power receiving branch 1 comprises a main circuit breaker and a pantograph arranged between a first end of the main circuit breaker and a high-voltage power grid contact line; the second ends of the main breakers are connected with each other to serve as the output ends of the parallel power receiving branches 1 and are used for being connected with a primary winding of a traction transformer of a power vehicle;
the bypass branch 2 comprises a high-voltage isolating switch of which the first end is connected with the output end of the power receiving branch 1, and the second end of the high-voltage isolating switch is used as a bypass point and is connected with the bypass points of other motor vehicles in the motor train unit;
the mode input detection circuit 3 is used for detecting a mode selection instruction input by a user;
the controller 4 is connected with the mode input detection circuit 3 and respectively coupled with the main circuit breaker, the pantograph and the high-voltage isolating switch (as shown by dotted lines in fig. 1); the system comprises a high-voltage isolating switch, a mode selection instruction and a turn-off instruction, wherein the high-voltage isolating switch is used for sending a turn-on instruction to the high-voltage isolating switch when the mode selection instruction is a double-power vehicle traction mode instruction, and sending the turn-off instruction to the high-voltage isolating switch when the mode selection instruction is a single-power vehicle traction mode instruction; and controls any powered branch 1 to conduct for outputting power supply.
Specifically, for the motor train unit, the high-voltage network side circuit of the power vehicle is used for obtaining electric energy from the high-voltage network side and supplying power to the primary side of the traction transformer so as to output the electric energy from the secondary side of the traction transformer and supply power to the motor train unit. Conventionally, the devices in the high-voltage grid-side circuit generally include a pantograph, a main circuit breaker and a grounding device. When the pantograph rises and the main breaker is closed, the high-voltage network side is in a state of passage, and the electric energy can be output backwards through the traction transformer; when the pantograph is lowered or the main breaker is disconnected, the high-voltage network side is in a broken state. Also, to achieve arc extinction, the main circuit breaker typically needs to be closed after the pantograph is raised and opened before the pantograph is lowered.
In order to protect the high-voltage network-side circuit redundantly, the high-voltage network-side circuit provided in the present application is provided with a plurality of parallel-connected power receiving branches 1 (only two are shown symbolically in fig. 1) each of which is composed of a pantograph and a main circuit breaker. Because each power receiving branch is connected in parallel between the contact line of the high-voltage network side and the input end of the primary winding of the traction transformer, as long as one power receiving branch 1 is conducted, the electric energy of the high-voltage network side can be smoothly output through the traction transformer. Through the arrangement of redundancy protection, when a pantograph or a main circuit breaker in one of the power receiving branches 1 fails, the controller can enable other normal power receiving branches 1 to be conducted, so that the normal operation of a train power system is maintained.
For each current receiving branch 1, a pantograph is mounted between the high voltage network contact line and the first end of the main breaker, and the high voltage network contact line is connected to the first end of the main breaker when it is pantograph-raised. The second ends of the main circuit breakers in each power receiving branch 1 are short-circuited with each other and serve as the output ends of each power receiving branch 1, so that the power receiving branches can be conveniently connected with the input end of the primary winding of the traction transformer of the power vehicle to output electric energy.
Of course, conventionally, in order to monitor, calculate and control the circuit state, a person skilled in the art may also generally arrange some devices for detection or protection, etc. in the circuit. For example, a high-voltage transformer is provided in the powered branch 1 in order to monitor the input voltage on the high-voltage network side; a high-voltage current transformer is arranged between the output end of the power receiving branch 1 and the input end of the primary winding of the traction transformer so as to monitor the input current of the high-voltage network side; a grounding current transformer is arranged between the output end of the primary winding of the traction transformer and a grounding device so as to monitor the grounding current of the high-voltage network side; an arrester is arranged between the output end of the power receiving branch 1 and the grounding end so as to protect circuit components. These matters can be set by the person skilled in the art according to the conventional technical means, and are not limited in this application.
On the other hand, as shown in fig. 1, in order to ensure that the high-voltage network side circuit of the power vehicle can be simultaneously applied to a single-power vehicle traction mode and a double-power traction mode, the high-voltage network side circuit provided by the present application further includes a bypass branch 2 electrically connected with a traction transformer of another power vehicle. Specifically, the bypass branch 2 mainly includes a high-voltage isolation switch, a first end of the high-voltage isolation switch is connected with the output end of the power receiving branch 1 of the power vehicle, and the other end of the high-voltage isolation switch is used as a bypass point of the power vehicle and is used for being connected with bypass points of other power vehicles.
Therefore, when the bypass points of the two power vehicles are connected with each other and the high-voltage isolating switches of the two power vehicles are both in a conducting state, the primary windings of the traction transformers of the two power vehicles are connected in parallel, and meanwhile, the power receiving branches 1 of the two power vehicles are also connected in parallel, so that power can be supplied to the two power vehicles through any one normally conducting power receiving branch 1 of the two power vehicles, namely, a dual-power-vehicle traction mode is realized. When only the traction mode of the single-power vehicle is needed, the high-voltage isolating switch can be disconnected, and a connecting line between the side contact points of the two power vehicles is eliminated. Therefore, the high-voltage network side circuit provided by the application can easily realize circuit structure switching under two grouping modes.
In order to realize the switching between the two grouping modes according to the user's intention, the high-voltage network side circuit provided by the application further comprises a mode input detection circuit 3 for receiving a mode selection instruction input by the user. When a user selects a traction mode instruction of the single-power vehicle, the controller 4 controls the high-voltage isolating switch to be switched off, and then controls any power receiving branch 1 to be switched on so as to output power supply; when a user completes the connection between the two power vehicle side contact points and inputs a double-power-vehicle traction mode instruction, the controller 4 controls the high-voltage isolating switch to be conducted, and then controls any power receiving branch 1 to be conducted so as to output power supply. As to the specific mode of the input detection circuit 3, a person skilled in the art can select and set the input detection circuit, such as a key detection circuit or a switch detection circuit, which is not limited in the present application.
Therefore, the high-voltage network side circuit of the motor vehicle in the motor train unit can be flexibly applied to a single-power-vehicle traction mode and a double-power-vehicle traction mode by controlling the on-off of the bypass branch circuits 2 while effectively realizing the redundant protection of the circuit by arranging the plurality of groups of parallel power receiving branch circuits 1, and therefore the flexible applicability and the safety of the circuit can be effectively improved.
The application provides a high voltage network side circuit of motor car in EMUs, on the basis of above-mentioned embodiment:
as a preferred embodiment, there are two power receiving branches 1;
the controller 4 is specifically configured to:
judging whether a pantograph and a main circuit breaker in the first power receiving branch have no fault;
if yes, sending a pantograph lifting instruction to a pantograph in the first power receiving branch and sending a closing instruction to a main circuit breaker in the first power receiving branch; so that the first power receiving branch is conducted to output power supply;
if not, judging whether the pantograph and the main breaker in the second power receiving branch circuit have no fault; if yes, sending a pantograph lifting instruction to a pantograph in the second power receiving branch and sending a closing instruction to a main circuit breaker in the second power receiving branch; so that the second powered branch is conducting to output power.
Specifically, two parallel power receiving branches 1 may be provided for the high-voltage network side circuit of each power vehicle, and one of the power receiving branches, that is, the first power receiving branch, is preferentially used by default. When any one of the pantograph and the main breaker in the first power receiving branch circuit has a fault, the second power receiving branch circuit is switched to be used. And meanwhile, corresponding fault prompt information can be generated, so that the workers can maintain the equipment in time.
As mentioned above, when the conduction of the power receiving branch 1 is controlled, the pantograph may be raised first, and then the main circuit breaker is closed; when the current-collecting branch is controlled to be closed, the main circuit breaker can be switched off firstly, and then the pantograph is subjected to pantograph descending, so that the purpose of arc extinction is achieved.
As a preferred embodiment, the bypass points are used in particular for:
and the high-voltage jumper wire is connected with the side connection points of other motor vehicles in the motor train unit.
Specifically, in the dual-power-vehicle traction mode, the bypass points of the two power vehicles need to be connected with each other, and can be realized by using a high-voltage jumper. Of course, other connection manners may also be adopted by those skilled in the art, and the embodiment of the present application is not limited thereto.
As a preferred embodiment, the pantograph type numbers in each of the power branches 1 are the same.
In particular, for ease of management and control, and also for reducing variations in circuit parameters and the like when using different power branches 1, it is preferable to use the same model for the pantographs in the respective power branches.
The following describes a control method of a high-voltage network side circuit of a motor vehicle in a motor train unit provided by the present application.
Referring to fig. 2, fig. 2 is a flowchart of a control method for a high-voltage network side circuit of a motor vehicle in a motor train unit, which is applied to the controller 4 in the high-voltage network side circuit as described in the above embodiments, and mainly includes the following steps:
step 1: acquiring a mode selection instruction input by a user; the mode selection command comprises a double-power vehicle traction mode command or a single-power vehicle traction mode command.
Step 2: judging whether the mode selection instruction is a dual-power vehicle traction mode instruction or not; if yes, entering step 3; if not, go to step 4.
And step 3: and (5) sending a closing instruction to the high-voltage isolating switch, and entering the step 5.
And 4, step 4: and (5) sending a turn-off instruction to the high-voltage isolating switch, and entering the step 5.
And 5: any powered branch 1 is controlled to conduct in order to output power supply.
It should be noted that, when the user selects the dual-powered vehicle traction mode, the arbitrary power receiving branch 1 in step 5 includes not only the arbitrary power receiving branch 1 of the present powered vehicle, but also the arbitrary power receiving branch 1 of another powered vehicle.
Therefore, in the control method of the high-voltage network side circuit of the motor vehicle in the motor train unit, while the circuit redundancy protection is effectively realized by arranging the plurality of groups of parallel power receiving branch circuits 1, the control method can be flexibly applied to a single-power-vehicle traction mode and a double-power-vehicle traction mode by controlling the on-off of the bypass branch circuits 2, so that the flexible applicability and the safety of the circuit can be effectively improved.
The application provides a control method of a high-voltage network side circuit of a motor vehicle in a motor train unit, on the basis of the embodiment:
as a preferred embodiment, there are two power receiving branches 1;
controlling any powered branch 1 to close for output powering comprises:
judging whether a pantograph and a main circuit breaker in the first power receiving branch have no fault;
if yes, sending a pantograph lifting instruction to a pantograph in the first power receiving branch and sending a closing instruction to a main circuit breaker in the first power receiving branch; so that the first power receiving branch is conducted to output power supply;
if not, judging whether the pantograph and the main breaker in the second power receiving branch circuit have no fault; if yes, sending a pantograph lifting instruction to a pantograph in the second power receiving branch and sending a closing instruction to a main circuit breaker in the second power receiving branch; so that the second powered branch is conducting to output power.
As a preferred embodiment, the bypass points are used in particular for:
and the high-voltage jumper wire is connected with the side connection points of other motor vehicles in the motor train unit.
As a preferred embodiment, the pantograph type numbers in each of the power branches 1 are the same.
The application also provides a control device of a high-voltage network side circuit of a power car in the motor train unit, which comprises:
a memory: for storing a computer program;
a processor: for executing the computer program to realize the steps of the control method of the high-voltage network-side circuit of a motor vehicle in any one of the motor train units as described above.
The application also provides a computer readable storage medium, in which a computer program is stored, and the computer program, when executed by a processor, implements the steps of any one of the above-mentioned methods for controlling a high-voltage network side circuit of a motor vehicle in a motor train unit.
The specific embodiments of the method and the device for controlling the high-voltage network side circuit of the motor vehicle in the motor train unit and the computer-readable storage medium described above may be referred to in correspondence with each other, and thus are not described herein again.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.
It is further noted that, throughout this document, relational terms such as "first" and "second" are 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. Furthermore, 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 technical solutions provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (10)
1. A high-voltage network side circuit of a power vehicle in a motor train unit is characterized by comprising a plurality of parallel power receiving branches, bypass branches used for being electrically connected with other power vehicles in the motor train unit, a mode input detection circuit and a controller;
the power receiving branch comprises a main circuit breaker and a pantograph, wherein the pantograph is installed between a first end of the main circuit breaker and a high-voltage power grid contact line; the second ends of the main circuit breakers are connected with each other to serve as the output ends of the power receiving branches which are connected in parallel and are used for being connected with a primary winding of a traction transformer of the power vehicle;
the bypass branch comprises a high-voltage isolating switch of which the first end is connected with the output end of the power receiving branch, and the second end of the high-voltage isolating switch is used as a bypass point and is used for being connected with the bypass points of other motor vehicles in the motor train unit;
the mode input detection circuit is used for detecting a mode selection instruction input by a user;
the controller is connected with the mode input detection circuit and is respectively coupled with the main circuit breaker, the pantograph and the high-voltage isolating switch; the controller is used for sending a closing instruction to the high-voltage isolating switch when the mode selection instruction is a double-power vehicle traction mode instruction, and sending a switching-off instruction to the high-voltage isolating switch when the mode selection instruction is a single-power vehicle traction mode instruction; and controlling any power receiving branch to be conducted so as to output power supply.
2. The high-voltage network-side circuit according to claim 1, wherein the power receiving branches are two;
the controller is specifically configured to:
judging whether the pantograph and the main circuit breaker in the first power receiving branch have no fault or not;
if yes, sending a pantograph lifting instruction to the pantograph in the first power receiving branch, and sending a closing instruction to the main circuit breaker in the first power receiving branch; so that the first power receiving branch is conducted to output power supply;
if not, judging whether the pantograph and the main circuit breaker in the second power receiving branch circuit have no fault; if yes, sending a pantograph lifting instruction to the pantograph in the second power receiving branch, and sending a closing instruction to the main circuit breaker in the second power receiving branch; so that the second power receiving branch is conducted to output power supply.
3. The high-voltage network-side circuit according to claim 2, characterized in that the bypass point is specifically configured to:
and the high-voltage jumper is connected with the bypass points of other motor vehicles in the motor train unit.
4. The high-voltage network-side circuit according to any of claims 1 to 3, wherein the pantograph-type numbers in each of the power receiving branches are the same.
5. A control method of a high-voltage network side circuit of a motor vehicle in a motor train unit, applied to the controller in the high-voltage network side circuit according to claim 1, characterized by comprising:
acquiring a mode selection instruction input by a user; the mode selection command comprises a double-power vehicle traction mode command or a single-power vehicle traction mode command;
judging whether the mode selection instruction is a dual-power vehicle traction mode instruction or not;
if yes, sending a closing instruction to the high-voltage isolating switch; if not, sending a turn-off instruction to the high-voltage isolating switch;
and controlling any power receiving branch to be conducted so as to output power supply.
6. The control method according to claim 5, wherein the power receiving branches are two;
the controlling of the closing of any of the powered branches to output power comprises:
judging whether the pantograph and the main circuit breaker in the first power receiving branch circuit have no fault;
if yes, sending a pantograph lifting instruction to the pantograph in the first power receiving branch, and sending a closing instruction to the main circuit breaker in the first power receiving branch; so that the first power receiving branch is conducted to output power supply;
if not, judging whether the pantograph and the main circuit breaker in the second power receiving branch circuit have no fault; if yes, sending a pantograph lifting instruction to the pantograph in the second power receiving branch, and sending a closing instruction to the main circuit breaker in the second power receiving branch; so that the second power receiving branch is conducted to output power supply.
7. The control method according to claim 6, characterized in that the bypass point is specifically configured to:
and the high-voltage jumper is connected with the bypass points of other motor vehicles in the motor train unit.
8. The control method according to any one of claims 5 to 7, wherein the pantograph shape numbers in each of the power receiving branches are the same.
9. A control device of a high voltage network side circuit of a motor vehicle in a motor train unit is characterized by comprising:
a memory: for storing a computer program;
a processor: steps for executing the computer program to realize the control method of the high-voltage grid-side circuit of a motor vehicle in a motor train unit according to any one of claims 5 to 8.
10. A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, which computer program, when being executed by a processor, implements the steps of the method for controlling a high-voltage grid-side circuit of a motor vehicle in a motor train unit according to any one of claims 5 to 8.
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|---|---|---|---|
| CN201810479788.7A CN108572574B (en) | 2018-05-18 | 2018-05-18 | High-voltage network side circuit of motor vehicle in motor train unit and control method thereof |
| PCT/CN2018/102645 WO2019218523A1 (en) | 2018-05-18 | 2018-08-28 | High-voltage network side circuit of motor train in motor train unit and control method therefor |
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| CN201810479788.7A CN108572574B (en) | 2018-05-18 | 2018-05-18 | High-voltage network side circuit of motor vehicle in motor train unit and control method thereof |
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| CN108572574A CN108572574A (en) | 2018-09-25 |
| CN108572574B true CN108572574B (en) | 2020-11-27 |
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| CN108572574B (en) * | 2018-05-18 | 2020-11-27 | 中车株洲电力机车有限公司 | High-voltage network side circuit of motor vehicle in motor train unit and control method thereof |
| CN109703368B (en) * | 2018-12-10 | 2021-02-02 | 中车大连机车车辆有限公司 | Redundancy control method and system for locomotive high-voltage system |
| CN112977482B (en) * | 2019-12-02 | 2022-06-21 | 重庆中车长客轨道车辆有限公司 | Straddle type monorail vehicle |
| CN112937306B (en) * | 2021-04-02 | 2022-10-04 | 中车青岛四方机车车辆股份有限公司 | Rail train, rail train power system and control method and control device thereof |
| CN114633640B (en) * | 2022-01-17 | 2023-09-26 | 中车青岛四方机车车辆股份有限公司 | Power switching system and method of railway vehicle and railway vehicle |
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| Publication number | Publication date |
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| CN108572574A (en) | 2018-09-25 |
| WO2019218523A1 (en) | 2019-11-21 |
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