CN115320396A - Traction high-voltage control system and method for double-flow urban train - Google Patents
Traction high-voltage control system and method for double-flow urban train Download PDFInfo
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- CN115320396A CN115320396A CN202210963893.4A CN202210963893A CN115320396A CN 115320396 A CN115320396 A CN 115320396A CN 202210963893 A CN202210963893 A CN 202210963893A CN 115320396 A CN115320396 A CN 115320396A
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- 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
- B60L9/00—Electric propulsion with power supply external to the vehicle
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- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
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- 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
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Abstract
The invention discloses a traction high-voltage control system and method for a double-current system urban train, wherein the system comprises a power supply system detection device, a system selection switch, a roof switch, an alternating current main breaker, a high-voltage isolating switch, a direct current high-speed breaker and a traction high-voltage control unit; the power supply system detection device is connected with a contact network and is used for judging whether a current high-voltage system of the train is in a DC1500V direct current mode or an AC25kV alternating current mode; and in a DC1500V direct current mode, the system selection switch is closed with the roof switch, and the DC1500V high-voltage circuit is connected to the direct current input end of the traction converter box body through the direct current high-speed circuit breaker. The invention provides a traction high-voltage control system and method for a double-current system urban train, which can control the on and off of a high-voltage switch according to the detected current traction power supply system parameters, so that the full-automatic switching of the traction power supply system of the urban train between direct current DC1500V and alternating current AC25kV is realized.
Description
Technical Field
The invention relates to a traction high-voltage control system and method for a double-flow urban train, and belongs to the technical field of full-automatic unmanned urban train control.
Background
At present, the domestic traditional rail transit vehicles mostly adopt the main current power supply systems of DC 750V three-rail and DC1500V contact networks and AC25kV contact networks with mature technology. The DC 750V and DC1500V power supply system is mainly used for lines such as subways and light rails in cities, and the AC25kV power supply system is mainly used for long-distance rail traffic lines such as state railways. In order to meet the requirement of urban railways for constructing a novel, rapid and efficient urban comprehensive traffic system, double-flow urban trains are produced at the same time, and interconnection and intercommunication between an inter-city rail transit railway line network and an intra-city subway line network can be realized. However, how to realize the full-automatic switching of the traction power supply system of the urban vehicle between DC1500V and AC25kV alternating current becomes a problem which needs to be solved at present.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a double-current system urban train traction high-voltage control system and method, which can control the on and off of a high-voltage switch according to the detected current traction power supply system parameters, thereby realizing the full-automatic switching of the traction power supply system of the urban vehicle between DC1500V and AC25 kV.
In order to solve the technical problem, the technical scheme of the invention is as follows:
the invention provides a traction high-voltage control system of a double-current system urban train, which comprises a power supply system detection device, a system selection switch, a roof switch, an alternating current main breaker, a high-voltage isolating switch, a direct current high-speed breaker and a traction high-voltage control unit, wherein the power supply system detection device is connected with the system selection switch;
the power supply system detection device is connected with a contact network and used for judging whether a current high-voltage system of the train is in a DC1500V direct current mode or an AC25kV alternating current mode;
in a DC1500V direct current mode, the system selection switch and the roof switch are closed, and a DC1500V high-voltage circuit is connected to a direct current input end of a traction converter box body through a direct current high-speed circuit breaker;
under an AC25kV alternating current mode, the system selection switch is disconnected with the roof switch to isolate the direct current pantograph, and an AC25kV high-voltage circuit is connected to the input end of the main transformer through an alternating current main circuit breaker;
the traction high-voltage control unit comprises a system detection module, a system detection monitoring module, a high-voltage isolating switch control module, a high-voltage isolating switch monitoring module, an alternating-current main breaker control module, an alternating-current main breaker monitoring module, a direct-current high-speed breaker control module, a direct-current high-speed breaker monitoring module, a system selection switch control module, a system selection switch monitoring module, a roof switch control module, a roof switch monitoring module, a digital acquisition unit, a digital output unit and a fault diagnosis unit;
the traction high-voltage control unit is used for controlling the on-off actions of the high-voltage isolating switch, the alternating-current main circuit breaker, the direct-current high-speed circuit breaker, the system selection switch and the roof switch after receiving the alternating-current and direct-current mode signals detected by the power supply system detection device, and further supplying power to the train traction and auxiliary power supply system.
Further, the input end of the power supply system detection device collects a pantograph lifting signal, an alternating current mode detection signal, a direct current mode detection signal and a valid bit signal of the collection unit, and the power supply system detection device outputs a DC1500V direct current mode signal and an AC25kV alternating current mode signal.
Further, in a DC1500V direct current mode, the system selection switch is closed, the train is powered by 4 direct current pantographs, and when one of the direct current pantographs fails, the system selection switch is opened to isolate the failed direct current pantograph; under the AC25kV alternating current mode, the system selection switch is switched off, and the train is powered by 1 alternating current-direct current pantograph.
In a DC1500V direct current mode, the roof switch is closed, the train is powered by 4 direct current pantographs, and when one direct current pantograph fails, the roof switch is opened to isolate the failed direct current pantograph; under the AC25kV alternating current mode, the roof switch is switched off, and the train is powered by 1 alternating current-direct current pantograph.
Further, the system detection module receives pantograph lifting signals, alternating current mode detection signals, direct current mode detection signals and digital acquisition unit valid bit signal input through a digital acquisition unit;
the system detection module outputs a direct current mode signal and an alternating current mode signal to the system detection monitoring module, the high-voltage isolating switch control module, the alternating current main circuit breaker control module, the direct current high-speed circuit breaker control module, the system selection switch control module and the roof switch control module;
the high-voltage isolating switch control module controls the on or off action of the high-voltage isolating switch according to the direct-current mode signal and the alternating-current mode signal;
the alternating current main circuit breaker control module controls the closing or opening action of the alternating current main circuit breaker according to the direct current mode signal and the alternating current mode signal;
the direct-current high-speed circuit breaker control module controls the closing or opening action of the direct-current high-speed circuit breaker according to the direct-current mode signal and the alternating-current mode signal;
the system selection switch control module controls the on or off action of the system selection switch according to the direct current mode signal and the alternating current mode signal;
the roof switch control module controls the on-off action of the roof switch according to the direct current mode signal and the alternating current mode signal;
the system detection monitoring module receives a pantograph lifting signal, an alternating current mode detection signal, a direct current mode detection signal, a digital acquisition unit valid bit signal, an alternating current mode signal and a direct current power supply mode signal through a digital acquisition unit, and is used for judging whether a detection result of a power supply system detection device is correct or not;
the system detection monitoring module outputs an alternating current system isolation signal and a fault event to the high-voltage isolating switch control module, and the high-voltage isolating switch control module judges whether to allow the control of the on-off action of the high-voltage isolating switch or not according to the alternating current system isolation signal and the fault event;
the system detection monitoring module outputs an alternating current system isolation signal and a fault event to the alternating current main circuit breaker control module, and the alternating current main circuit breaker control module judges whether to allow the closing or opening action of the alternating current main circuit breaker to be controlled or not according to the alternating current system isolation signal and the fault event;
the system detection monitoring module outputs a direct current system isolation signal and a fault event to the direct current high-speed circuit breaker control module, and the direct current high-speed circuit breaker control module judges whether to allow the control of the closing or opening action of the alternating current main circuit breaker according to the direct current system isolation signal and the fault event;
the system detection monitoring module outputs a fault event to the system selection switch control module, and the system selection switch control module judges whether to allow the control of the on-off action of the system selection switch according to the fault event;
the system detection monitoring module outputs a fault event to the roof switch control module, and the roof switch control module judges whether to allow the control of the on-off action of the roof switch according to the fault event;
the system detection monitoring module outputs a fault event to a fault diagnosis unit, and the fault diagnosis unit is used for storing the fault event.
Further, the high-voltage isolating switch control module receives a pantograph lifting signal, an alternating current main breaker closing command signal, an alternating current main breaker closing feedback state signal, an alternating current main breaker opening feedback state signal, a high-voltage isolating switch closing feedback state signal, an effective bit signal of the digital acquisition unit, a high-voltage isolating switch fault state signal of the high-voltage isolating switch monitoring module and an alternating current system isolating state signal of the system detection monitoring module through the digital acquisition unit, the high-voltage isolating switch control module controls the closing or opening action of the high-voltage isolating switch according to the signals, the high-voltage isolating switch control module outputs a closing command or an opening command of the high-voltage isolating switch to the digital output unit, and the digital output unit controls the high-voltage isolating switch to be closed or opened;
the high-voltage isolating switch monitoring module receives a high-voltage isolating switch opening feedback state signal, a high-voltage isolating switch closing feedback state signal, an effective bit signal of the digital acquisition unit and a closing command and an opening command of the high-voltage isolating switch output by the high-voltage isolating switch control module through the digital acquisition unit, and judges whether the high-voltage isolating switch correctly acts according to the command or not according to the signal and the command;
the high-voltage isolating switch monitoring module outputs a fault signal that the high-voltage isolating switch cannot be closed, a fault signal that the high-voltage isolating switch cannot be opened and a high-voltage isolating switch similarity fault signal to the high-voltage isolating switch control module and the fault diagnosis unit.
Further, the ac main circuit breaker control module receives a pantograph lifting state signal, a high-voltage disconnector opening feedback state signal, a high-voltage disconnector closing feedback state signal, an ac main circuit breaker closing permission state signal, an ac main circuit breaker closing feedback state signal, an ac main circuit breaker opening feedback state signal, a valid bit signal of the digital acquisition unit, an ac main circuit breaker fault state signal of the ac main circuit breaker monitoring module, an ac system isolation state signal of the system detection monitoring module, a phase separation zone state signal transmitted by the train management system, an ac mode signal of the system detection module, and a dc mode signal of the system detection module through the digital acquisition unit, the ac main circuit breaker control module controls the ac main circuit breaker to close or open according to the signals, the ac main circuit breaker control module outputs a closing command or an opening command of the ac main circuit breaker to the digital output unit, and controls the ac main circuit breaker to close or open through the digital output unit;
the alternating current main circuit breaker monitoring module receives an alternating current main circuit breaker closing permission state signal, an alternating current main circuit breaker closing feedback state signal, an alternating current main circuit breaker opening feedback state signal, a valid bit signal of the digital acquisition unit, an alternating current mode signal of the system detection module, a direct current mode signal of the system detection module and a closing command and an opening command of the alternating current main circuit breaker output by the alternating current main circuit breaker control module through the digital acquisition unit, and the alternating current main circuit breaker monitoring module judges whether the alternating current main circuit breaker acts correctly according to the command according to the signal and the command;
the alternating current main circuit breaker monitoring module outputs a fault signal that the alternating current main circuit breaker cannot be closed, a fault signal that the alternating current main circuit breaker cannot be opened, a similarity fault signal of the alternating current main circuit breaker, a non-instruction closing fault signal of the alternating current main circuit breaker and a non-instruction opening fault signal of the alternating current main circuit breaker to the alternating current main circuit breaker control module and the fault diagnosis unit.
Further, the roof switch control module receives a pantograph rising state signal, a roof switch allowed closing state signal, a direct-current high-speed circuit breaker opening state signal, a roof switch opening feedback state signal, a roof switch closing feedback state signal, an effective bit signal of the digital acquisition unit, an alternating-current mode signal of the system detection module, a direct-current mode signal of the system detection module, a roof switch monitoring fault signal of the roof switch monitoring module and a separation region state signal transmitted by the train management system through the digital acquisition unit, the roof switch control module controls the roof switch to be closed or opened according to the signals, the roof switch control module outputs a closing command or an opening command of the roof switch to the digital output unit, and the digital output unit controls the roof switch to be closed or opened;
the roof switch monitoring module receives a roof switch opening feedback state signal, a roof switch closing feedback state signal, an effective bit signal of the digital acquisition unit and a roof switch closing command and an opening command output by the roof switch control module through the digital acquisition unit, and judges whether the roof switch correctly acts according to the command or not according to the signal and the command;
the roof switch monitoring module outputs a roof switch non-closing fault signal, a roof switch non-opening fault signal and a roof switch similarity fault signal to the roof switch control module and the fault diagnosis unit.
Further, the system selection switch control module receives a pantograph lifting state signal, a system selection switch allowed closing state signal, a direct-current high-speed circuit breaker opening state signal, a system selection switch opening feedback state signal, a system selection switch closing feedback state signal, an effective bit signal of the digital acquisition unit, an alternating-current mode signal of the system detection module, a direct-current mode signal of the system detection module, a system selection switch monitoring fault signal of the system selection switch monitoring module and a separation region state signal transmitted by the train management system through the digital acquisition unit, the system selection switch control module controls the closing or opening action of the system selection switch according to the signals, the system selection switch control module outputs a closing command or an opening command of the system selection switch to the digital output unit, and the digital output unit controls the closing or opening of the system selection switch;
the system selection switch monitoring module receives a system selection switch opening feedback state signal, a system selection switch closing feedback state signal, a valid bit signal of the digital acquisition unit and a system selection switch closing command and opening command output by the system selection switch control module through the digital acquisition unit, and the system selection switch monitoring module judges whether the system selection switch acts correctly according to the command according to the signals and the command;
and the system selection switch monitoring module outputs a system selection switch failure signal, a system selection switch failure signal and a system selection switch similarity failure signal to the system selection switch control module and the failure diagnosis unit.
Further, the direct current high-speed circuit breaker control module receives a pantograph lifting state signal, a direct current high-speed circuit breaker allowed closing state signal, a direct current high-speed circuit breaker closing feedback state signal, a direct current high-speed circuit breaker opening feedback state signal, a system selection switch or a roof switch closing feedback state signal, an effective bit signal of the digital acquisition unit, a direct current high-speed circuit breaker fault state signal of the direct current high-speed circuit breaker monitoring module, a separation region state signal transmitted by a train management system, an alternating current mode signal of the system detection module and a direct current mode signal of the system detection module through the digital acquisition unit, the direct current high-speed circuit breaker control module controls the closing or opening action of the direct current high-speed circuit breaker according to the signals, the direct current high-speed circuit breaker control module outputs a closing command or an opening command of the direct current high-speed circuit breaker to the digital output unit, and controls the direct current high-speed circuit breaker to close or open through the digital output unit;
the direct-current high-speed circuit breaker monitoring module receives a direct-current high-speed circuit breaker allowed closing state signal, a direct-current high-speed circuit breaker closing feedback state signal, a direct-current high-speed circuit breaker opening feedback state signal, a valid bit signal of the digital acquisition unit, a direct-current mode signal of the system detection module and a closing command and an opening command of the direct-current high-speed circuit breaker output by the direct-current high-speed circuit breaker control module through the digital acquisition unit, and the direct-current high-speed circuit breaker monitoring module judges whether the direct-current high-speed circuit breaker acts correctly according to an instruction or not according to the signals and the command;
the direct-current high-speed circuit breaker monitoring module outputs a direct-current high-speed circuit breaker non-closing fault signal, a direct-current high-speed circuit breaker non-opening fault signal, a direct-current high-speed circuit breaker similarity fault signal and a direct-current high-speed circuit breaker non-instruction opening fault signal to the direct-current high-speed circuit breaker control module and the fault diagnosis unit.
The invention provides a control method of a double-flow system urban train traction high-voltage control system on the other hand, which comprises the following steps:
s1, when a train normally runs, a power supply mode is detected by a power supply system detection device, a traction high-voltage control unit judges whether power is supplied in an alternating-current mode, and if the power supply mode is the alternating-current mode, the step S2 is executed; if the power supply mode is not the alternating current mode, the step S3 is carried out;
s2, the traction high-voltage control unit controls the high-voltage isolating switch to be closed, then the traction high-voltage control unit controls the alternating-current main circuit breaker to be closed, the traction high-voltage control unit judges whether a phase passing instruction is received or not, and if the traction high-voltage control unit receives the phase passing instruction, the step S21 is carried out; if the traction high-voltage control unit does not receive the passing neutral section instruction, the train continues to run;
s21, judging that the train passes through a neutral section by the traction high-voltage control unit, and controlling the LCB to be opened and the train to slide by the traction high-voltage control unit;
s3, the traction high-voltage control unit judges whether power is supplied in a direct-current mode or not, and if the power supply mode is the direct-current mode, the step S31 is executed; if the power supply mode is not the direct current mode, the traction high-voltage control unit carries out fault diagnosis;
s31, the traction high-voltage control unit controls a system selection switch and a roof switch to be closed, the train control management system controls the rest three pantographs to rise, the traction high-voltage control unit controls a direct-current high-speed circuit breaker to be closed, and then the step S4 is carried out;
s4, the traction high-voltage control unit judges whether a phase passing instruction is received, and if the traction high-voltage control unit receives the phase passing instruction, the step S41 is executed; if the traction high-voltage control unit does not receive the passing neutral section instruction, the train continues to run;
and S41, judging that the train passes through a separation area by the traction high-voltage control unit, controlling the direct-current high-speed circuit breaker to be opened by the traction high-voltage control unit, controlling the roof switch and the system selection switch to be opened by the traction high-voltage control unit, and controlling the rest three pantographs to fall and the train to slide by the train control management system.
By adopting the technical scheme, the power supply mode output by the power supply system detection device is read by the traction high-voltage control unit, and the correct power supply mode is selected by controlling the closing and opening of the system selection switch and the roof switch. Under an alternating current 25kV power supply mode, the traction high-voltage control unit realizes normal operation of a train under an alternating current mode by controlling an alternating current main circuit breaker and a high-voltage isolating switch, and can realize degraded operation of a half group of fault trains by opening the high-voltage isolating switch; in a direct current mode, the traction high-voltage control unit controls the system selection switch, the roof switch and the direct current high-speed circuit breaker to be closed to realize normal operation of the train in a direct current mode. The invention can identify the direct current power supply mode and the alternating current power supply mode on the urban train, and the traction control unit can safely and reliably control the on-off of the high-voltage switch according to the power supply mode, thereby realizing the full-automatic switching of the urban train between direct current DC1500V and alternating current AC25kV, and also applying the invention to the full-automatic unmanned urban train.
Drawings
FIG. 1 is a schematic block diagram of a dual flow system urban train traction high voltage control system of the present invention;
FIG. 2 is a functional control diagram of the system detection module of the present invention;
FIG. 3 is a functional block diagram of a high voltage isolator control module of the present invention;
FIG. 4 is a functional block diagram of the roof switch control module of the present invention;
FIG. 5 is a functional block diagram of the system select switch control module of the present invention;
FIG. 6 is a functional block diagram of the AC main breaker control module of the present invention;
FIG. 7 is a functional block diagram of the DC high speed circuit breaker control module of the present invention;
FIG. 8 is a method flowchart of the dual flow system urban train traction high voltage control system of the present invention;
the system comprises an SD power supply system detection device, an SSS power supply system detection device, a system selection switch, an RS roof switch, an AC LCB power supply system detection device, an AC main circuit breaker, an SA lightning arrester, an AC lightning arrester, an HD high-voltage isolation switch, a DC SA lightning arrester, a DC HSCB power supply system detection device, a DC high-speed circuit breaker, a PCU power control unit and a traction high-voltage control unit.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
Example one
As shown in fig. 1, the present embodiment provides a dual-current system urban train traction high-voltage control system, which includes a power supply system detection device SD, a system selection switch SSS, a roof switch RS, an AC main circuit breaker AC LCB, a high-voltage isolation switch HD, a DC high-speed circuit breaker DC HSCB, and a traction high-voltage control unit PCU;
the power supply system detection device SD is connected with a contact network and used for judging whether the current high-voltage system of the train is in a DC1500V direct current mode or an AC25kV alternating current mode;
in a DC1500V direct current mode, a system selection switch SSS and a roof switch RS are closed, and a DC1500V high-voltage circuit is connected to a direct current input end of a traction converter box body through a direct current high-speed circuit breaker DC HSCB;
under an AC25kV alternating current mode, a system selection switch SSS is disconnected with a roof switch RS to isolate a direct current pantograph, and an AC25kV high-voltage circuit is connected to the input end of a main transformer through an AC main circuit breaker AC LCB;
the traction high-voltage control unit PCU comprises a system detection module, a system detection monitoring module, a high-voltage isolating switch control module, a high-voltage isolating switch monitoring module, an AC main breaker control module, an AC main breaker monitoring module, a DC high-speed breaker control module, a DC high-speed breaker monitoring module, a system selection switch control module, a system selection switch monitoring module, a roof switch control module, a roof switch monitoring module, a digital acquisition unit, a digital output unit and a fault diagnosis unit;
and the traction high-voltage control unit PCU is used for controlling the on-off actions of the high-voltage isolating switch HD, the alternating-current main circuit breaker AC LCB, the direct-current high-speed circuit breaker DC HSCB, the system selection switch SSS and the roof switch RS after receiving the alternating-current and direct-current mode signal detected by the power supply system detection device SD, so as to supply power for the train traction and the auxiliary power supply system.
As shown in fig. 1, an input end of the power supply system detection device SD of this embodiment collects a pantograph up signal, an AC mode detection signal, a DC mode detection signal, and a valid bit signal of a collection unit, and the power supply system detection device SD outputs a DC1500V DC mode signal and an AC25kV AC mode signal.
As shown in fig. 1, in the DC1500V DC mode, the system selection switch SSS is closed, the train is powered by 4 DC pantographs, and when one of the DC pantographs fails, the system selection switch SSS is opened to isolate the failed DC pantograph; under the AC25kV alternating current mode, a system selection switch SSS is switched off, and the train is powered by 1 alternating current-direct current pantograph.
Under a DC1500V direct current mode, a roof switch RS is closed, 4 direct current pantographs supply power to the train, and when one direct current pantograph fails, the roof switch RS is opened to isolate the failed direct current pantograph; under the AC25kV alternating current mode, a roof switch RS is disconnected, and the train is powered by 1 alternating current-direct current pantograph.
As shown in fig. 2, the system detection module of the present embodiment receives the pantograph lifting signal, the ac mode detection signal, the dc mode detection signal and the valid bit signal input of the digital acquisition unit through the digital acquisition unit;
the system detection module outputs a direct current mode signal and an alternating current mode signal to the system detection monitoring module, the high-voltage isolating switch control module, the alternating current main breaker control module, the direct current high-speed breaker control module, the system selection switch control module and the roof switch control module;
the high-voltage isolating switch control module controls the on or off action of the high-voltage isolating switch HD according to the direct-current mode signal and the alternating-current mode signal;
the AC main breaker control module controls the on or off action of an AC main breaker AC LCB according to the DC mode signal and the AC mode signal;
the direct-current high-speed circuit breaker control module controls the closing or opening action of the direct-current high-speed circuit breaker DC HSCB according to the direct-current mode signal and the alternating-current mode signal;
the system selection switch control module controls the on or off action of a system selection switch SSS according to the direct current mode signal and the alternating current mode signal;
the roof switch control module controls the closing or opening action of a roof switch RS according to the direct current mode signal and the alternating current mode signal;
the system detection monitoring module receives a pantograph lifting signal, an alternating current mode detection signal, a direct current mode detection signal, a digital acquisition unit valid bit signal, an alternating current mode signal and a direct current power supply mode signal through the digital acquisition unit, and is used for judging whether a detection result of the power supply system detection device SD is correct or not;
the system detection monitoring module outputs an alternating current system isolation signal and a fault event to the high-voltage isolating switch control module, and the high-voltage isolating switch control module judges whether to allow the control of the on-off action of the high-voltage isolating switch HD according to the alternating current system isolation signal and the fault event;
the system detection monitoring module outputs an alternating current system isolation signal and a fault event to the alternating current main circuit breaker control module, and the alternating current main circuit breaker control module judges whether to allow the control of the closing or opening action of the alternating current main circuit breaker AC LCB according to the alternating current system isolation signal and the fault event;
the system detection monitoring module outputs a direct current system isolation signal and a fault event to the direct current high-speed circuit breaker control module, and the direct current high-speed circuit breaker control module judges whether to allow the control of the closing or opening action of the alternating current main circuit breaker AC LCB or not according to the direct current system isolation signal and the fault event;
the system detection monitoring module outputs a fault event to the system selection switch control module, and the system selection switch control module judges whether to allow the control of the on-off action or the off-off action of the system selection switch SSS according to the fault event;
the system detection monitoring module outputs a fault event to the roof switch control module, and the roof switch control module judges whether to allow the control of the on-off action of the roof switch RS according to the fault event;
the system detection monitoring module outputs a fault event to the fault diagnosis unit, and the fault diagnosis unit is used for storing the fault event.
As shown in fig. 3, the high-voltage disconnecting switch HD of the present embodiment does not have a capability of on-load closing or opening operation, and the high-voltage disconnecting switch HD needs to be closed or opened when the AC main breaker AC LCB is opened.
The high-voltage isolating switch control module receives a pantograph lifting signal, an AC main circuit breaker AC LCB closing command signal, an AC main circuit breaker AC LCB closing feedback state signal, an AC main circuit breaker AC LCB opening feedback state signal, a high-voltage isolating switch HD closing feedback state signal, an effective bit signal of the digital acquisition unit, a high-voltage isolating switch HD fault state signal of the high-voltage isolating switch monitoring module and an AC system isolating state signal of the system detection monitoring module through the digital acquisition unit, the high-voltage isolating switch control module controls the closing or opening action of the high-voltage isolating switch HD according to the signals, the high-voltage isolating switch control module outputs a closing command or an opening command of the high-voltage isolating switch HD to the digital output unit, and controls the high-voltage isolating switch HD to be closed or opened through the digital output unit;
the high-voltage isolating switch monitoring module receives an opening feedback state signal of the high-voltage isolating switch HD, a closing feedback state signal of the high-voltage isolating switch HD, an effective bit signal of the digital acquisition unit and a closing command and an opening command of the high-voltage isolating switch HD output by the high-voltage isolating switch control module through the digital acquisition unit, and judges whether the high-voltage isolating switch HD acts correctly according to the command or not according to the signals and the command;
the high-voltage isolating switch monitoring module outputs a fault signal that the high-voltage isolating switch HD cannot be closed, a fault signal that the high-voltage isolating switch HD cannot be opened and a fault signal of high-voltage isolating switch HD similarity to the high-voltage isolating switch control module and the fault diagnosis unit.
As shown in fig. 6, the AC main breaker AC LCB is equipped with an arc chute, and has a capability of opening or closing with a large current, and the AC main breaker AC LCB is preferentially opened in any serious fault in the AC25kV AC mode.
The control module of the AC main circuit breaker receives a pantograph lifting state signal, an HD opening feedback state signal, an HD closing feedback state signal of the high-voltage isolating switch, an AC main circuit breaker AC LCB closing permission state signal, an AC main circuit breaker AC LCB closing feedback state signal, an AC main circuit breaker AC LCB opening feedback state signal, a valid bit signal of the digital acquisition unit, an AC main circuit breaker AC LCB fault state signal of the AC main circuit breaker monitoring module, an AC system isolation state signal of the system detection monitoring module, a phase separation area state signal transmitted by a train management system, an AC mode signal of the system detection module and a DC mode signal of the system detection module through the digital acquisition unit, the AC main circuit breaker control module controls the AC main circuit breaker AC LCB to close or open according to the signals, the AC main circuit breaker control module outputs a closing command or an opening command of the AC main circuit breaker AC LCB to the digital output unit, and controls the AC main circuit breaker AC LCB to close or open through the digital output unit;
the AC main circuit breaker monitoring module receives an AC main circuit breaker AC LCB allowed closing state signal, an AC main circuit breaker AC LCB closing feedback state signal, an AC main circuit breaker AC LCB opening feedback state signal, a valid bit signal of the digital acquisition unit, an AC mode signal of the system detection module, a DC mode signal of the system detection module, a closing command and an opening command of the AC main circuit breaker AC LCB output by the AC main circuit breaker control module through the digital acquisition unit, and judges whether the AC main circuit breaker AC LCB acts correctly according to the command or not according to the signals and the command;
the alternating current main circuit breaker monitoring module outputs an alternating current main circuit breaker AC LCB non-closing fault signal, an alternating current main circuit breaker AC LCB non-opening fault signal, an alternating current main circuit breaker AC LCB similarity fault signal, an alternating current main circuit breaker AC LCB non-instruction closing fault signal and an alternating current main circuit breaker AC LCB non-instruction opening fault signal to the alternating current main circuit breaker control module and the fault diagnosis unit.
As shown in fig. 4, the roof switch RS does not have a capability of on-load closing or opening operation, and needs to be closed or opened when the AC main breaker AC LCB or the DC high-speed breaker DC HSCB is opened.
The system comprises a roof switch control module, a digital acquisition unit, a digital output unit, a roof switch RS permission closing state signal, a direct current high-speed circuit breaker DC HSCB opening state signal, a roof switch RS opening feedback state signal, a roof switch RS closing feedback state signal, a valid bit signal of the digital acquisition unit, an alternating current mode signal of a system detection module, a direct current mode signal of the system detection module, a roof switch monitoring fault signal of the roof switch monitoring module and a separation region state signal transmitted by a train management system TCMS, wherein the roof switch control module controls the closing or opening action of the roof switch RS according to the signals, outputs a closing command or an opening command of the roof switch RS to the digital output unit, and controls the roof switch RS to be closed or opened through the digital output unit;
the roof switch monitoring module receives a roof switch RS opening feedback state signal, a roof switch RS closing feedback state signal, a valid bit signal of the digital acquisition unit and a roof switch RS closing command and opening command output by the roof switch control module through the digital acquisition unit, and judges whether the roof switch RS acts correctly according to the signal and the command;
the roof switch monitoring module outputs a fault signal that a roof switch RS cannot be closed, a fault signal that the roof switch RS cannot be opened and a roof switch RS similarity fault signal to the roof switch control module and the fault diagnosis unit.
As shown in fig. 5, the system selection switch SSS does not have a capability of on-load closing or opening operation, and needs to be closed or opened when the AC main breaker AC LCB or the dc high-speed breaker is opened.
The system selection switch control module receives a pantograph lifting state signal, a system selection switch SSS allowed closing state signal, a direct-current high-speed circuit breaker DC HSCB opening state signal, a system selection switch SSS opening feedback state signal, a system selection switch SSS closing feedback state signal, an effective bit signal of the digital acquisition unit, an alternating-current mode signal of the system detection module, a direct-current mode signal of the system detection module, a system selection switch monitoring fault signal of the system selection switch monitoring module and a separation region state signal transmitted by a train management system TCMS, outputs a closing command or an opening command of the system selection switch SSS to the digital output unit according to the closing or opening action of the signal control system selection switch SSS, and controls the system selection switch SSS to be closed or opened through the digital output unit;
the system selection switch monitoring module receives a system selection switch SSS opening feedback state signal, a system selection switch SSS closing feedback state signal, a valid bit signal of the digital acquisition unit and a closing command and an opening command of the system selection switch SSS output by the system selection switch control module through the digital acquisition unit, and the system selection switch monitoring module judges whether the system selection switch SSS acts correctly according to the signals and the command;
and the system selection switch monitoring module outputs a system selection switch SSS failure closing fault signal, a system selection switch SSS failure opening fault signal and a system selection switch SSS similarity fault signal to the system selection switch control module and the fault diagnosis unit.
As shown in fig. 7, the DC high-speed circuit breaker DC HSCB is provided with an arc extinguishing chamber, and has a capability of opening or closing with a large current, and the DC high-speed circuit breaker DC HSCB is preferentially opened in any serious fault in the DC1500V DC mode.
The control module of the direct-current high-speed circuit breaker receives a pantograph lifting state signal, a direct-current high-speed circuit breaker DC HSCB allowed closing state signal, a direct-current high-speed circuit breaker DC HSCB closing feedback state signal, a direct-current high-speed circuit breaker DC HSCB opening feedback state signal, a system selection switch SSS or roof switch RS closing feedback state signal, a valid bit signal of the digital acquisition unit, a direct-current high-speed circuit breaker DC HSCB fault state signal of a direct-current high-speed circuit breaker monitoring module, a separation zone state signal transmitted by a train management system, an alternating current mode signal of a system detection module and a direct current mode signal of the system detection module, the control module of the direct-current high-speed circuit breaker controls the closing or opening action of the direct-current high-speed circuit breaker DC HSCB according to the signals, the control module of the direct-current high-speed circuit breaker outputs a closing command or an opening command of the direct-current high-speed circuit breaker DC CB to the digital output unit, and controls the direct-current high-speed circuit breaker DC HSCB to be closed or opened through the digital output unit;
the direct-current high-speed circuit breaker monitoring module receives a direct-current high-speed circuit breaker DC HSCB allowed closing state signal, a direct-current high-speed circuit breaker DC HSCB closing feedback state signal, a direct-current high-speed circuit breaker DC HSCB opening feedback state signal, a valid bit signal of the digital acquisition unit, a direct-current mode signal of the system detection module and a closing command and an opening command of the direct-current high-speed circuit breaker DC HSCB output by the direct-current high-speed circuit breaker control module through the digital acquisition unit, and judges whether the direct-current high-speed circuit breaker DC HSCB acts correctly according to the command or not according to the signal and the command;
the direct-current high-speed circuit breaker monitoring module outputs a direct-current high-speed circuit breaker DC HSCB non-closing fault signal, a direct-current high-speed circuit breaker DC HSCB non-opening fault signal, a direct-current high-speed circuit breaker DC HSCB similarity fault signal and a direct-current high-speed circuit breaker DC HSCB non-instruction opening fault signal to the direct-current high-speed circuit breaker control module and the fault diagnosis unit.
Example two
As shown in fig. 8, the present embodiment provides a control method of a dual-flow urban train traction high-voltage control system, which includes:
s1, when a train normally runs, a power supply mode is detected by a power supply system detection device SD, a traction high-voltage control unit PCU judges whether power is supplied in an alternating current mode, and if the power supply mode is the alternating current mode, the step S2 is entered; if the power supply mode is not the alternating current mode, the step S3 is carried out;
s2, the traction high-voltage control unit PCU controls the high-voltage isolating switch HD to be closed, then the traction high-voltage control unit PCU controls the AC main circuit breaker AC LCB to be closed, the traction high-voltage control unit PCU judges whether a phase passing instruction is received, and if the traction high-voltage control unit PCU receives the phase passing instruction, the step S21 is carried out; if the traction high-voltage control unit PCU does not receive the passing neutral section instruction, the train continues to run;
s21, the traction high-voltage control unit PCU judges that the train passes through a split-phase area, then the traction high-voltage control unit PCU controls the LCB to be opened, and the train slides;
s3, the traction high-voltage control unit PCU judges whether power is supplied in a direct-current mode, and if the power supply mode is the direct-current mode, the step S31 is executed; if the power supply mode is not the direct current mode, the traction high-voltage control unit PCU carries out fault diagnosis;
step S31, a traction high-voltage control unit PCU controls a system selection switch SSS and a roof switch RS to be closed, a train control management system TCMS controls the rest three pantographs to be lifted, the traction high-voltage control unit controls a direct-current high-speed circuit breaker DC HSCB to be closed, and then the step S4 is carried out;
s4, judging whether a phase passing instruction is received by the traction high-voltage control unit PCU, and if the phase passing instruction is received by the traction high-voltage control unit PCU, entering the step S41; if the traction high-voltage control unit PCU does not receive the passing neutral section instruction, the train continues to run;
and S41, the traction high-voltage control unit PCU judges that the train passes through a separation area, then the traction high-voltage control unit PCU controls the direct-current high-speed circuit breaker DC HSCB to be opened, then the traction high-voltage control unit PCU controls the roof switch RS and the system selection switch SSS to be opened, and then the train control management system TCMS controls the rest three pantographs to land and the train to slide.
The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a double current system urban train pulls high-pressure control system which characterized in that: the system comprises a power supply system detection device, a system selection switch, a roof switch, an alternating current main circuit breaker, a high-voltage isolating switch, a direct current high-speed circuit breaker and a traction high-voltage control unit;
the power supply system detection device is connected with a contact network and is used for judging whether a current high-voltage system of the train is in a DC1500V direct current mode or an AC25kV alternating current mode;
in a DC1500V direct current mode, the system selection switch and the roof switch are closed, and a DC1500V high-voltage circuit is connected to a direct current input end of a traction converter box body through a direct current high-speed breaker;
under the AC25kV alternating current mode, the system selection switch is disconnected with the roof switch, a direct current pantograph is isolated, and an AC25kV high-voltage circuit is connected to the input end of the main transformer through an alternating current main circuit breaker;
the traction high-voltage control unit comprises a system detection module, a system detection monitoring module, a high-voltage isolating switch control module, a high-voltage isolating switch monitoring module, an alternating current main circuit breaker control module, an alternating current main circuit breaker monitoring module, a direct current high-speed circuit breaker control module, a direct current high-speed circuit breaker monitoring module, a system selection switch control module, a system selection switch monitoring module, a roof switch control module, a roof switch monitoring module, a digital acquisition unit, a digital output unit and a fault diagnosis unit;
the traction high-voltage control unit is used for controlling the on-off actions of the high-voltage isolating switch, the alternating-current main circuit breaker, the direct-current high-speed circuit breaker, the system selection switch and the roof switch after receiving the alternating-current and direct-current mode signals detected by the power supply system detection device, and further supplying power to the train traction and auxiliary power supply system.
2. The dual-flow system urban train traction high-voltage control system according to claim 1, wherein: the input end of the power supply system detection device collects a pantograph lifting signal, an alternating current mode detection signal, a direct current mode detection signal and a valid bit signal of a collection unit, and the power supply system detection device outputs a DC1500V direct current mode signal and an AC25kV alternating current mode signal.
3. The dual-flow system urban train traction high-voltage control system according to claim 1, wherein:
in a DC1500V direct current mode, the system selection switch is closed, the train is powered by 4 direct current pantographs, and when one direct current pantograph fails, the system selection switch is opened to isolate the failed direct current pantograph; under the AC25kV alternating current mode, the system selection switch is disconnected, and the train is powered by 1 alternating current-direct current pantograph.
In a DC1500V direct current mode, the roof switch is closed, the train is powered by 4 direct current pantographs, and when one direct current pantograph fails, the roof switch is opened to isolate the failed direct current pantograph; under the AC25kV alternating current mode, the roof switch is switched off, and the train is powered by 1 alternating current-direct current pantograph.
4. The dual-flow system urban train traction high-voltage control system according to claim 1, wherein:
the system detection module receives pantograph lifting signals, alternating current mode detection signals, direct current mode detection signals and digital acquisition unit valid bit signal input through a digital acquisition unit;
the system detection module outputs a direct current mode signal and an alternating current mode signal to the system detection monitoring module, the high-voltage isolating switch control module, the alternating current main breaker control module, the direct current high-speed breaker control module, the system selection switch control module and the roof switch control module;
the high-voltage isolating switch control module controls the on or off action of the high-voltage isolating switch according to the direct-current mode signal and the alternating-current mode signal;
the alternating current main circuit breaker control module controls the closing or opening action of the alternating current main circuit breaker according to the direct current mode signal and the alternating current mode signal;
the direct-current high-speed circuit breaker control module controls the closing or opening action of the direct-current high-speed circuit breaker according to the direct-current mode signal and the alternating-current mode signal;
the system selection switch control module controls the on or off action of the system selection switch according to the direct current mode signal and the alternating current mode signal;
the roof switch control module controls the on-off action of a roof switch according to the direct current mode signal and the alternating current mode signal;
the system detection monitoring module receives a pantograph lifting signal, an alternating current mode detection signal, a direct current mode detection signal, a digital acquisition unit valid bit signal, an alternating current mode signal and a direct current power supply mode signal through a digital acquisition unit, and is used for judging whether a detection result of a power supply system detection device is correct or not;
the system detection monitoring module outputs an alternating current system isolation signal and a fault event to the high-voltage isolating switch control module, and the high-voltage isolating switch control module judges whether to allow the control of the on-off action of the high-voltage isolating switch or not according to the alternating current system isolation signal and the fault event;
the system detection monitoring module outputs an alternating current system isolation signal and a fault event to the alternating current main circuit breaker control module, and the alternating current main circuit breaker control module judges whether to allow the control of the closing or opening action of the alternating current main circuit breaker according to the alternating current system isolation signal and the fault event;
the system detection monitoring module outputs a direct current system isolation signal and a fault event to the direct current high-speed circuit breaker control module, and the direct current high-speed circuit breaker control module judges whether to allow the control of the closing or opening action of the alternating current main circuit breaker according to the direct current system isolation signal and the fault event;
the system detection monitoring module outputs a fault event to the system selection switch control module, and the system selection switch control module judges whether to allow the control of the on-off action of the system selection switch according to the fault event;
the system detection monitoring module outputs a fault event to the roof switch control module, and the roof switch control module judges whether to allow the control of the on-off action or the off-off action of the roof switch according to the fault event;
the system detection monitoring module outputs a fault event to a fault diagnosis unit, and the fault diagnosis unit is used for storing the fault event.
5. The dual flow system urban train traction high-voltage control system according to claim 1, characterized in that:
the high-voltage isolating switch control module receives a pantograph lifting signal, an alternating current main breaker closing command signal, an alternating current main breaker closing feedback state signal, an alternating current main breaker opening feedback state signal, a high-voltage isolating switch closing feedback state signal, an effective bit signal of the digital acquisition unit, a high-voltage isolating switch fault state signal of the high-voltage isolating switch monitoring module and an alternating current system isolating state signal of the system detection monitoring module through the digital acquisition unit, the high-voltage isolating switch control module controls the closing or opening action of the high-voltage isolating switch according to the signals, the high-voltage isolating switch control module outputs a closing command or an opening command of the high-voltage isolating switch to the digital output unit, and the digital output unit controls the high-voltage isolating switch to be closed or opened;
the high-voltage isolating switch monitoring module receives a high-voltage isolating switch opening feedback state signal, a high-voltage isolating switch closing feedback state signal, an effective bit signal of the digital acquisition unit and a closing command and an opening command of the high-voltage isolating switch output by the high-voltage isolating switch control module through the digital acquisition unit, and judges whether the high-voltage isolating switch correctly acts according to the command or not according to the signal and the command;
the high-voltage isolating switch monitoring module outputs a fault signal that the high-voltage isolating switch cannot be closed, a fault signal that the high-voltage isolating switch cannot be opened and a high-voltage isolating switch similarity fault signal to the high-voltage isolating switch control module and the fault diagnosis unit.
6. The dual-flow system urban train traction high-voltage control system according to claim 1, wherein:
the system comprises an alternating current main circuit breaker control module, a digital acquisition unit, a digital output unit, a digital acquisition unit, an alternating current main circuit breaker control module, a digital acquisition unit, a digital control unit and a digital control unit, wherein the alternating current main circuit breaker control module receives a pantograph lifting state signal, a high-voltage isolating switch opening feedback state signal, a high-voltage isolating switch closing feedback state signal, an alternating current main circuit breaker closing permission state signal, an alternating current main circuit breaker closing feedback state signal, an alternating current main circuit breaker opening feedback state signal, an effective bit signal of the digital acquisition unit, an alternating current main circuit breaker fault state signal of an alternating current main circuit breaker monitoring module, an alternating current system isolation state signal of a system detection monitoring module, a phase separation zone state signal transmitted by a train management system, an alternating current mode signal of a system detection module and a direct current mode signal of the system detection module;
the alternating current main circuit breaker monitoring module receives an alternating current main circuit breaker closing permission state signal, an alternating current main circuit breaker closing feedback state signal, an alternating current main circuit breaker opening feedback state signal, a valid bit signal of the digital acquisition unit, an alternating current mode signal of the system detection module, a direct current mode signal of the system detection module and a closing command and an opening command of the alternating current main circuit breaker output by the alternating current main circuit breaker control module through the digital acquisition unit, and the alternating current main circuit breaker monitoring module judges whether the alternating current main circuit breaker acts correctly according to the command according to the signal and the command;
the alternating current main circuit breaker monitoring module outputs an alternating current main circuit breaker non-closing fault signal, an alternating current main circuit breaker non-opening fault signal, an alternating current main circuit breaker similarity fault signal, an alternating current main circuit breaker non-instruction closing fault signal and an alternating current main circuit breaker non-instruction opening fault signal to the alternating current main circuit breaker control module and the fault diagnosis unit.
7. The dual flow system urban train traction high-voltage control system according to claim 1, characterized in that:
the roof switch control module receives a pantograph lifting state signal, a roof switch allowed closing state signal, a direct-current high-speed circuit breaker opening state signal, a roof switch opening feedback state signal, a roof switch closing feedback state signal, an effective bit signal of the digital acquisition unit, an alternating-current mode signal of the system detection module, a direct-current mode signal of the system detection module, a roof switch monitoring fault signal of the roof switch monitoring module and a separation region state signal transmitted by the train management system through the digital acquisition unit, controls the closing or opening action of the roof switch according to the signals, outputs a closing command or an opening command of the roof switch to the digital output unit, and controls the roof switch to be closed or opened through the digital output unit;
the roof switch monitoring module receives a roof switch opening feedback state signal, a roof switch closing feedback state signal, an effective bit signal of the digital acquisition unit and a roof switch closing command and opening command output by the roof switch control module through the digital acquisition unit, and judges whether the roof switch acts correctly according to the command or not according to the signal and the command;
the roof switch monitoring module outputs a roof switch non-closing fault signal, a roof switch non-opening fault signal and a roof switch similarity fault signal to the roof switch control module and the fault diagnosis unit.
8. The dual flow system urban train traction high-voltage control system according to claim 1, characterized in that:
the system selection switch control module receives a pantograph rising state signal, a system selection switch allowed closing state signal, a direct-current high-speed circuit breaker opening state signal, a system selection switch opening feedback state signal, a system selection switch closing feedback state signal, an effective bit signal of the digital acquisition unit, an alternating-current mode signal of the system detection module, a direct-current mode signal of the system detection module, a system selection switch monitoring fault signal of the system selection switch monitoring module and a separation region state signal transmitted by the train management system through the digital acquisition unit, the system selection switch control module controls the closing or opening action of the system selection switch according to the signal, the system selection switch control module outputs a closing command or an opening command of the system selection switch to the digital output unit, and the digital output unit controls the closing or opening of the system selection switch;
the system selection switch monitoring module receives a system selection switch opening feedback state signal, a system selection switch closing feedback state signal, a valid bit signal of the digital acquisition unit and a system selection switch closing command and opening command output by the system selection switch control module through the digital acquisition unit, and the system selection switch monitoring module judges whether the system selection switch acts correctly according to the command according to the signals and the command;
and the system selection switch monitoring module outputs a system selection switch failure signal, a system selection switch failure signal and a system selection switch similarity failure signal to the system selection switch control module and the failure diagnosis unit.
9. The dual flow system urban train traction high-voltage control system according to claim 1, characterized in that:
the direct current high-speed circuit breaker control module receives a pantograph lifting state signal, a direct current high-speed circuit breaker allowed closing state signal, a direct current high-speed circuit breaker closing feedback state signal, a direct current high-speed circuit breaker opening feedback state signal, a system selection switch or roof switch closing feedback state signal, an effective bit signal of the digital acquisition unit, a direct current high-speed circuit breaker fault state signal of the direct current high-speed circuit breaker monitoring module, a separation region state signal transmitted by a train management system, an alternating current mode signal of a system detection module and a direct current mode signal of the system detection module through the digital acquisition unit, the direct current high-speed circuit breaker control module controls the closing or opening action of the direct current high-speed circuit breaker according to the signals, the direct current high-speed circuit breaker control module outputs a closing command or an opening command of the direct current high-speed circuit breaker to the digital output unit, and controls the direct current high-speed circuit breaker to be closed or opened through the digital output unit;
the direct-current high-speed circuit breaker monitoring module receives a direct-current high-speed circuit breaker allowed closing state signal, a direct-current high-speed circuit breaker closing feedback state signal, a direct-current high-speed circuit breaker opening feedback state signal, an effective bit signal of the digital acquisition unit, a direct-current mode signal of the system detection module and a closing command and an opening command of the direct-current high-speed circuit breaker output by the direct-current high-speed circuit breaker control module through the digital acquisition unit, and the direct-current high-speed circuit breaker monitoring module judges whether the direct-current high-speed circuit breaker acts correctly according to an instruction or not according to the signals and the command;
the direct-current high-speed circuit breaker monitoring module outputs a direct-current high-speed circuit breaker non-closing fault signal, a direct-current high-speed circuit breaker non-opening fault signal, a direct-current high-speed circuit breaker similarity fault signal and a direct-current high-speed circuit breaker non-instruction opening fault signal to the direct-current high-speed circuit breaker control module and the fault diagnosis unit.
10. A control method of a dual flow system city train traction high voltage control system according to any of claims 1 to 9, characterized in that it comprises:
s1, when a train normally runs, a power supply mode is detected by a power supply system detection device, a traction high-voltage control unit judges whether power is supplied in an alternating-current mode, and if the power supply mode is the alternating-current mode, the step S2 is executed; if the power supply mode is not the alternating current mode, the step S3 is carried out;
s2, the traction high-voltage control unit controls the high-voltage isolating switch to be closed, then the traction high-voltage control unit controls the alternating-current main circuit breaker to be closed, the traction high-voltage control unit judges whether a phase passing instruction is received, and if the traction high-voltage control unit receives the phase passing instruction, the step S21 is carried out; if the traction high-voltage control unit does not receive the passing neutral section instruction, the train continues to run;
s21, the traction high-voltage control unit judges that the train passes through a neutral section area, and then the traction high-voltage control unit controls the LCB to be opened and the train to slide;
s3, the traction high-voltage control unit judges whether power is supplied in a direct-current mode or not, and if the power supply mode is the direct-current mode, the step S31 is executed; if the power supply mode is not the direct current mode, the traction high-voltage control unit carries out fault diagnosis;
s31, the traction high-voltage control unit controls a system selection switch and a roof switch to be closed, the train control management system controls the rest three pantographs to rise, the traction high-voltage control unit controls a direct-current high-speed circuit breaker to be closed, and then the step S4 is carried out;
s4, the traction high-voltage control unit judges whether a phase passing instruction is received, and if the traction high-voltage control unit receives the phase passing instruction, the step S41 is executed; if the traction high-voltage control unit does not receive the passing neutral section instruction, the train continues to run;
and S41, judging that the train passes through a separation area by the traction high-voltage control unit, controlling the direct-current high-speed circuit breaker to be opened by the traction high-voltage control unit, controlling the roof switch and the system selection switch to be opened by the traction high-voltage control unit, and controlling the rest three pantographs to fall and the train to slide by the train control management system.
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| CN202210963893.4A CN115320396A (en) | 2022-08-11 | 2022-08-11 | Traction high-voltage control system and method for double-flow urban train |
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