CN111605441B - Automatic neutral section passing control method and device - Google Patents

Abstract

Translated fromChinese

本发明涉及一种自动过分相控制方法及装置，控制方法包括：S1、车辆采集网压信号，将网压信号传输给过分相装置；S2、过分相装置检测到网压信号由有网压到无网压变化时，识别为强迫断信号，执行断开电源断路器操作；S3、过分相装置检测到网压信号由无网压到有网压变化时，识别为强迫合信号，执行接合电源断路器操作。本发明使分相区位置定位更加准确可靠，可有效解决车辆低速过分相时输出过分相指令导致车辆VCB断开故障，使列车可以满足任何初始速度通过过分相均能正常合断VCB，确保列车运营安全和运营效率。

The invention relates to an automatic over-phase control method and device. The control method comprises: S1. The vehicle collects a network voltage signal, and transmits the network voltage signal to the over-phase device; When there is no network voltage change, it is identified as a forced disconnection signal, and the power supply circuit breaker operation is performed; S3. When the over-phase device detects that the network voltage signal changes from no network voltage to a network voltage change, it is recognized as a forced closing signal, and the power supply is connected. circuit breaker operation. The present invention makes the position location of the split-phase area more accurate and reliable, and can effectively solve the problem of vehicle VCB disconnection caused by the output of the over-phase command when the vehicle is over-phase at low speed, so that the train can normally close and disconnect the VCB through the over-phase at any initial speed, so as to ensure the train Operational safety and operational efficiency.

Description

Automatic neutral section passing control method and device

Technical Field

The invention belongs to the technical field of train passing neutral section, and particularly relates to an automatic train passing neutral section control method and device.

Background

Currently, in order to reduce the influence of unbalanced load on the national grid, the phase of the overhead line system needs to be changed every certain distance. To avoid short circuits, it is necessary to create phase separation zones between the supply sections of different mains voltage phases. Correspondingly, when the train enters and leaves the phase splitting area, the corresponding phase splitting area entering signal and phase splitting area exiting signal are required to be sent to the automatic phase splitting passing device of the train, so that the corresponding processing is adopted, and the phase splitting passing control of the train is realized.

The existing vehicle is generally provided with two automatic passing neutral section devices, the two automatic passing neutral section devices work after the vehicle is electrified, a vehicle network system judges and signs an instruction sent by one passing neutral section device through control logic to carry out vehicle logic control, although only one passing neutral section device is signed, the two automatic passing neutral section devices work, and long-time electrification affects the service life of equipment. Therefore, the current working mode can not meet the higher requirements of prolonging the overhaul and repair processes of the vehicle, reducing the maintenance cost of the vehicle and improving the service efficiency of the vehicle.

As shown in fig. 1, in the existing vehicle, a magnet is buried in each of the left and right sides of a line at 60M positions at two ends of a phase separation area, a vehicle-mounted signal receiver is disposed on each of the left and right sides of a rail at a head portion of the vehicle, and when the vehicle enters and exits the phase separation area, the vehicle-mounted signal receivers receive four ground magnetic steel signals, namely, a first ground signal G1 (which is recognized as a "notice" signal by an auto-phase separation device) and a second ground signal G2 (which is recognized as a "forced off" signal by the auto-phase separation device) before entering the phase separation area, and a third ground signal G3 (which is recognized as a "notice" signal by the auto-phase separation device) and a fourth ground signal G4 (which is recognized as a "forced on" signal by the auto-phase separation device) after exiting the phase separation area. When the automatic neutral-section passing device recognizes the forced disconnection signal, the automatic neutral-section passing device sends the signal to the train control system to execute the operation of disconnecting the VCB, and when the automatic neutral-section passing device recognizes the forced combination signal, the automatic neutral-section passing device sends the signal to the train control system to execute the operation of connecting the VCB.

When the vehicle-mounted signal receiver enters a phase separation area, the vehicle-mounted signal receiver receives a first ground signal G1, the vehicle-mounted signal receiver sends the first ground signal G1 to the train automatic passing phase separation device, the automatic passing phase separation device recognizes as a 'notice break' signal, after the 'notice break' signal is received, the automatic passing phase separation device waits for t seconds, if a forcing signal is collected within the t seconds, the automatic passing phase separation device recognizes as a 'forcing combination' signal, and otherwise, the automatic passing phase separation device is automatically and initially set. The automatic initial setting function of the automatic passing phase splitting device is used for eliminating the interference of an external abnormal magnetic field to a passing phase splitting action sequence, and the automatic passing phase splitting device is in a phase splitting state to be about to pass by default after initial setting.

The existing passing neutral section control is designed to carry out self-checking of an automatic passing neutral section device through a fixed delay time t seconds, but the initial speed of a vehicle entering the passing neutral section needs to be controlled manually, the initial speed of the vehicle entering the neutral section is low, or braking is applied in the neutral section, so that the motor train unit stays too long in the range of ground magnetic steel, the time exceeds the self-checking time t set by the automatic passing neutral section device, after the time t seconds of the self-checking, a fourth ground signal G4 is received, the automatic passing neutral section device of the train can mistake the acquired forced signal as entering the neutral section, the passing neutral section device outputs a VCB (voltage control) command, the vehicle is free of network voltage after the neutral section is obtained, the operation efficiency is influenced, and the existing automatic passing neutral section device cannot meet the condition that any initial speed can normally close and break a VCB (power supply circuit breaker) after passing the passing neutral section.

Disclosure of Invention

The invention mainly solves the technical problem of providing an automatic passing neutral section control method which can normally break and close a VCB (virtual vehicle bus) at any initial speed by passing through neutral sections and ensure the operation safety and the operation efficiency of a train, and also provides an automatic passing neutral section device.

In order to achieve the purpose, the technical scheme of the invention is as follows:

an automatic neutral-section passing control method comprises the following steps:

s1, collecting the network voltage signal by the vehicle, and transmitting the network voltage signal to the passing neutral section device;

s2, when the neutral section passing device detects that the network voltage signal changes from network voltage to no network voltage, the neutral section passing device recognizes the network voltage signal as a forced disconnection signal and executes the operation of disconnecting the power supply circuit breaker;

and S3, when the neutral section passing device detects that the network voltage signal changes from no network voltage to network voltage, the neutral section passing device recognizes the network voltage signal as a forced closing signal and executes the operation of closing the power supply circuit breaker.

Further, in the step S2, when the vehicle enters the phase separation area, the phase separation device responds to the ground signal preferentially, and does not respond to the grid voltage signal any more after receiving the ground signal forced to be disconnected, and the phase separation device responds to the grid voltage signal when not receiving the ground signal forced to be disconnected and executes the step S2.

Further, in step S3, when the vehicle is out of the phase separation region, the phase separation device preferentially responds to the grid voltage signal, and if a change in the grid voltage signal is detected, the vehicle does not respond to the ground signal received subsequently.

Further, the method also comprises the step of selecting one of the passing phase separation devices to work before entering the phase separation area.

Further, the step of selecting the passing neutral section comprises detecting a pantograph-ascending signal, the corresponding passing neutral section is activated to enter an operating state, and the other passing neutral section is in a standby state.

The other technical scheme of the invention is as follows:

an automatic passing neutral section apparatus comprising:

the first receiving module is connected with a vehicle-mounted signal receiver for collecting ground signals and used for receiving the ground signals sensed and sent by the vehicle-mounted signal receiver;

the second receiving module is connected with the network voltage detection device and used for receiving network voltage signals in real time;

the processing module is used for judging and processing the received ground signal and the network voltage signal according to a pre-stored control strategy, identifying a forced break when the signals enter a phase splitting area and a forced combined signal when the signals exit the phase splitting area, and sending results to the output module;

and the output module is used for sending the processing result to the train control system so as to execute the operation of connecting or disconnecting the VCB.

Further, the control strategy includes:

when the vehicle enters the phase splitting area, the processing module preferentially responds to the ground signal, does not respond to the network voltage signal sent by the second receiving module after confirming that the ground signal sent by the first receiving module is received, and recognizes the network voltage signal as a forced disconnection signal when the network voltage signal is detected to be changed from network voltage to no network voltage when the ground signal is not received;

when the vehicle is out of the phase separation region, the processing module responds to the network voltage signal preferentially, and when the processing module detects that the network voltage signal sent by the second receiving module changes from no network voltage to network voltage, the processing module recognizes the network voltage signal as a forced combination signal and does not respond to the subsequent received ground signal any more.

And the detection module is used for detecting a pantograph rising signal and activating the corresponding phase separation control device to enter a working state after detecting the pantograph rising signal.

Furthermore, the network voltage detection device is connected with the voltage transformer, and network voltage signals are obtained through voltage-frequency conversion processing and transmitted to the second receiving module in real time.

In summary, compared with the prior art, the automatic neutral-section passing control method and the automatic neutral-section passing control device provided by the invention have the following advantages:

(1) the invention increases the network pressure signal in the automatic passing neutral section control logic, so that the positioning of the neutral section area is more accurate and reliable, the problem that the VCB of the vehicle is disconnected due to the output of the passing neutral section instruction when the vehicle is in a low-speed passing neutral section can be effectively solved, the train can meet the condition that the VCB can be normally closed and disconnected by passing the neutral section at any initial speed, and the operation safety and the operation efficiency of the train are ensured.

(2) The invention enables the vehicle to be powered on by only one automatic passing phase separation device at the same time through the control signal, prolongs the service life of the passing phase separation device and solves the problem of network misjudgment at the same time.

Drawings

FIG. 1 is a schematic diagram of an automatic passing phase separation of a conventional vehicle;

FIG. 2 is a schematic diagram of the present invention for auto-passing phase separation.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings:

as shown in fig. 2, the automatic neutral-section passing control method provided in this embodiment specifically includes the following steps:

s1, collecting a network voltage signal by the vehicle, and transmitting the network voltage signal to the mobile phase-splitting device;

s2, when the neutral section passing device detects that the network voltage signal changes from network voltage to no network voltage, the neutral section passing device recognizes the network voltage signal as a forced disconnection signal and executes the operation of disconnecting the power supply circuit breaker;

and S3, when the neutral section passing device detects that the network voltage signal changes from no network voltage to network voltage, the neutral section passing device recognizes the network voltage signal as a forced closing signal and executes the operation of closing the power supply circuit breaker.

In step S1, the network voltage detection device on the vehicle detects the network voltage of the catenary in real time, and transmits a network voltage signal to the phase-splitting device in real time. The network voltage detection device is connected with the voltage transformer, and network voltage signals are obtained through voltage-frequency conversion processing and transmitted to the passing phase splitting device.

In the above step S2, when the vehicle enters the phase separation region, the phase separation device is in the initial setting state (i.e., the phase separation passing state is about to be obtained by default). In the process, the phase passing device responds to the magnetic steel signal of the ground preferentially, the vehicle-mounted signal receiver firstly senses a first ground signal G1 and sends the first ground signal G1 to the phase passing device, the phase passing device identifies the ground signal G1 as a signal for warning to be disconnected, the vehicle-mounted signal receiver receives a second ground signal G2 and sends the second ground signal G2 to the phase passing device in the process of continuing advancing, the phase passing device identifies the ground signal G2 as a signal for forced disconnection, after the ground signal for forced disconnection is identified, the VCB is disconnected, and at the moment, the phase passing device does not respond to the network voltage signal any more.

When a fault occurs, if the vehicle-mounted signal receiver fails to sense a ground signal or the passing phase separation device does not receive the ground signal sent by the vehicle-mounted signal receiver, the passing phase separation device responds to the network voltage signal, and when the passing phase separation device detects that the network voltage signal changes from network voltage to no network voltage, the network voltage signal is identified as a forced-off signal, and the operation of disconnecting the power supply circuit breaker is executed. And the network voltage signal is identified as the last defense line entering the phase separation area, so that the vehicle is ensured to pass through the phase separation area when the power is cut off.

In the above step S3, when the vehicle exits the phase separation region, the phase separation device responds to the grid voltage signal preferentially, and when the phase separation device detects that the grid voltage signal changes from no grid voltage to grid voltage, it recognizes as a "forced on" signal, and performs an operation of engaging the power breaker, at this time, the subsequent third ground signal G3 and the subsequent fourth ground signal G4 are not responded, and the subsequent third ground signal G3 and the subsequent fourth ground signal G4 are both alternative signals.

In this embodiment, before entering the phase separation region, the method further comprises the step of selecting one of the passing phase separation devices to work. Further, the step of selecting the passing neutral section includes detecting a pantograph-raising signal, activating a passing neutral section installed in correspondence with the pantograph to enter an operating state, and putting another passing neutral section in a standby state. The neutral-section passing device is activated in two modes, one mode is that the neutral-section passing device is automatically activated according to the detected pantograph-ascending signal, and the other mode can also be that a driver manually controls the corresponding neutral-section passing device to enter the working state according to the detected pantograph-ascending signal. In the normal running process of the vehicle, only one automatic phase passing device of the vehicle is electrified to enter a working state, which means that half of the working time of each phase passing device is reduced, so that the service life of the phase passing device is prolonged, and the problem of misjudgment of a vehicle network system caused by the simultaneous working of two phase passing devices in the prior art is solved.

The embodiment also provides an automatic phase-splitting control device which comprises a first receiving module, a second receiving module, a processing module, an output module and a detection module.

The first receiving module is connected with a vehicle-mounted signal receiver for collecting ground signals and used for receiving the ground signals sensed and sent by the vehicle-mounted signal receiver.

And the second receiving module is connected with the detection device for collecting the network voltage and is used for receiving network voltage signals in real time, and the network voltage detection device is connected with the voltage transformer, obtains the network voltage signals through voltage-frequency conversion processing and transmits the network voltage signals to the passing phase splitting device in real time.

And the processing module is used for judging and processing the received ground signal and the network voltage signal according to a pre-stored control strategy, identifying a forced break when the signals enter a phase splitting area and a forced combined signal when the signals exit the phase splitting area, and sending the result to the output module. The control strategy is as described above and will not be described again here.

And the output module is used for sending the processing result to the train control system so as to execute the operation of connecting or disconnecting the VCB.

And the detection module is used for detecting the pantograph rising signal and activating the phase separation device to enter a working state after detecting the pantograph rising signal. Ensuring that only one passing neutral section device is activated to work and the other passing neutral section device is in a standby state.

The invention adds a step of responding to the network voltage signal in the control logic of the automatic passing phase separation, preferably responds to the ground signal when entering the phase separation area, responds to the network voltage signal when the ground signal has a fault, and the network voltage signal is used as a last defense line to ensure that the vehicle does not have electricity to pass through the phase separation area. When the vehicle is out of the split-phase area, the network voltage signal is preferably responded, the vehicle can be ensured to be powered when the vehicle is out of the split-phase area, the speed of the vehicle entering and exiting the split-phase area is irrelevant, the VCB can be connected as long as the change from the non-network voltage to the network voltage is detected, the limit of the initial setting function and the self-checking time t seconds in the prior art is avoided, meanwhile, the ground signal of the last split-phase area is not identified as a forced signal, the problem that the VCB of the vehicle is disconnected due to the fact that the split-phase instruction is output when the vehicle is in the low-speed split-phase area is effectively solved, the position of the split-phase area is more accurately positioned, the train can meet the condition that the VCB can be normally connected and disconnected through the split-phase area at any initial speed, the normal split-phase of the vehicle is ensured, the reliability of the split-phase area is higher, and the operation safety and the operation efficiency of the train are further ensured.

Similar solutions can be derived from the solution given in the figures, as described above. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the technical solution of the present invention, unless the content is the technical solution of the present invention.

Claims (7)

Translated fromChinese

1.一种自动过分相控制方法，其特征在于，包括：1. an automatic excessive phase control method, is characterized in that, comprises:S1、车辆采集网压信号，将网压信号传输给过分相装置；S1. The vehicle collects the network voltage signal, and transmits the network voltage signal to the over-phase device;S2、过分相装置检测到网压信号由有网压到无网压变化时，识别为强迫断信号，执行断开电源断路器操作；S2. When the over-phase device detects that the network voltage signal changes from having network voltage to no network voltage, it is identified as a forced disconnection signal, and the operation of disconnecting the power circuit breaker is performed;S3、过分相装置检测到网压信号由无网压到有网压变化时，识别为强迫合信号，执行接合电源断路器操作；S3. When the over-phase device detects that the grid voltage signal changes from no grid voltage to a grid voltage change, it is recognized as a forced closing signal, and the operation of engaging the power circuit breaker is performed;在上述步骤S2中，车辆进入分相区时，过分相装置优先响应地面信号， 车载信号接收器首先感应到第一个地面信号G1并发送给过分相装置，过分相装置将此地面信号G1识别为“预告断”的信号，再继续前进的过程中车载信号接收器又接收到第二个地面信号G2并发送给过分相装置，过分相装置将此地面信号G2识别为“强迫断”的信号，在识别“强迫断”的地面信号后，执行断开VCB的操作，不再响应网压信号，过分相装置在未接收到强迫断的地面信号时响应网压信号并按S2步骤执行；In the above step S2, when the vehicle enters the phase separation area, the over-phase device responds to the ground signal preferentially, the vehicle-mounted signal receiver first senses the first ground signal G1 and sends it to the over-phase device, and the over-phase device recognizes this ground signal G1 It is the signal of "pre-announcement". During the process of moving forward, the vehicle-mounted signal receiver receives the second ground signal G2 and sends it to the over-phase device. The over-phase device recognizes this ground signal G2 as a "forced disconnection" signal. , after identifying the ground signal of "forced disconnection", perform the operation of disconnecting the VCB, and no longer respond to the network voltage signal, and the excessive phase splitting device responds to the network voltage signal when it does not receive the forced disconnection ground signal and executes according to step S2;在上述步骤S3中，车辆出分相区时，过分相装置优先响应网压信号，过分相装置检测到网压信号由无网压到有网压变化时，识别为“强迫合”信号，执行接合电源断路器的操作，不再响应后续接收的地面信号。In the above step S3, when the vehicle leaves the phase-separation area, the over-phase-over-phase device responds preferentially to the network voltage signal, and when the over-phase-over-phase device detects that the network voltage signal changes from no network pressure to network voltage, it identifies it as a "forced closing" signal, and executes the The act of engaging the power circuit breaker no longer responds to subsequent received ground signals.2.根据权利要求1所述的一种自动过分相控制方法，其特征在于：在进入分相区之前还包括选择其中一个过分相装置工作的步骤。2 . The automatic over-phase control method according to claim 1 , wherein the step of selecting one of the over-phase devices to work is further included before entering the phase separation zone. 3 .3.根据权利要求2所述的一种自动过分相控制方法，其特征在于：选择过分相装置的步骤包括检测升弓信号，对应的过分相装置被激活而进入工作状态，另外一个过分相装置处于待机状态。3. A kind of automatic over-phase control method according to claim 2 is characterized in that: the step of selecting over-phase device comprises detecting the bow signal, the corresponding over-phase device is activated and enters the working state, and another over-phase device is activated. in standby.4.一种实现如权利要求1-3任一项所述的自动过分相控制方法的自动过分相控制装置，其特征在于，包括：4. an automatic excessive phase control device realizing the automatic excessive phase control method according to any one of claims 1-3, characterized in that, comprising:第一接收模块，与用于采集地面信号的车载信号接收器连接，用于接收车载信号接收器感应并发送的地面信号；The first receiving module is connected to the vehicle-mounted signal receiver for collecting ground signals, and is used for receiving ground signals sensed and sent by the vehicle-mounted signal receiver;第二接收模块，与网压检测装置连接，用于实时接收网压信号；The second receiving module is connected to the network pressure detection device, and is used for receiving network pressure signals in real time;处理模块，用于将接收的地面信号和网压信号按预先存储的控制策略进行判断处理，识别入分相区时的强迫断和出分相区时的强迫合的信号，并将结果发送至输出模块；The processing module is used to judge and process the received ground signal and network pressure signal according to the pre-stored control strategy, identify the forced disconnection when entering the phase separation area and the forced closing signal when exiting the phase separation area, and send the results to the output module;输出模块，用于将处理结果发送至列车控制系统用以执行接合或断开VCB的操作。The output module is used for sending the processing result to the train control system to perform the operation of engaging or disengaging the VCB.5.根据权利要求4所述的一种自动过分相控制装置，其特征在于：所述控制策略包括：5. An automatic over-phase control device according to claim 4, wherein the control strategy comprises:车辆进入分相区时，处理模块优先响应地面信号，在确认接收到第一接收模块发送的地面信号后不再响应第二接收模块发送的网压信号，在未接收到地面信号而检测到网压信号由有网压到无网压变化时，识别为强迫断信号；When the vehicle enters the phase-splitting area, the processing module responds to the ground signal first, and no longer responds to the network voltage signal sent by the second receiving module after confirming that it has received the ground signal sent by the first receiving module. When the voltage signal changes from network voltage to no network voltage, it is recognized as a forced disconnection signal;车辆出分相区时，处理模块优先响应网压信号，处理模块检测到第二接收模块发送的网压信号由无网压到有网压变化时，识别为强迫合信号，不再响应后续接收的地面信号。When the vehicle leaves the phase-separation area, the processing module responds to the network voltage signal first. When the processing module detects that the network voltage signal sent by the second receiving module changes from no network voltage to a network voltage change, it recognizes it as a forced closing signal, and no longer responds to subsequent receptions. ground signal.6.根据权利要求5所述的一种自动过分相控制装置，其特征在于：还包括检测模块，用于检测升弓信号，检测到升弓信号后激活对应的过分相控制装置进入工作状态。6 . The automatic over-phase control device according to claim 5 , further comprising a detection module for detecting the bow-up signal, and after detecting the bow-up signal, the corresponding over-phase control device is activated to enter the working state. 7 .7.根据权利要求5所述的一种自动过分相控制装置，其特征在于：所述网压检测装置与电压互感器连接，通过压频转换处理获得网压信号并实时传输给第二接收模块。7 . The automatic over-phase control device according to claim 5 , wherein the network voltage detection device is connected to a voltage transformer, and the network voltage signal is obtained through voltage-frequency conversion processing and transmitted to the second receiving module in real time. 8 . .

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