CN218005865U

CN218005865U - Comprehensive emergency protection device for digital traction substation of high-speed heavy haul railway

Info

Publication number: CN218005865U
Application number: CN202221318496.3U
Authority: CN
Inventors: 李享; 陈德明; 熊列彬; 郭凯; 何洪赟; 蒋辉; 罗杨; 潘海会; 郭睿; 蒲杰成; 周嘉琦; 李玉玺
Original assignee: Chengdu Jiaoda Yunda Electrical Co ltd
Current assignee: Chengdu Jiaoda Yunda Electrical Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-12-09
Anticipated expiration: 2032-05-30

Abstract

The comprehensive emergency protection device for the digital traction substation of the high-speed heavy haul railway comprises a device panel, a power module, a switching value input/output module, a microprocessor module, a communication interface module and input equipment, wherein the device panel, the power module, the switching value input/output module, the microprocessor module, the communication interface module and the input equipment are arranged in an electric cabinet and are electrically connected. In this novel application, input device can gather the regional power supply data of power supply in real time, and after the field transformer took place thunderbolt, high tension switchgear insulation breakdown, earthquake, conflagration, DC power supply fault all kinds of fault conditions such as in the protection zone, the power of ability very first time tripping operation disconnection master power switch has prevented the fault amplification, has played effective protection for drawing power supply system from this. Based on the above, the utility model discloses good application prospect has.

Description

Comprehensive emergency protection device for digital traction substation of high-speed heavy haul railway

Technical Field

The utility model relates to an electric railway pulls power supply auxiliary assembly technical field, especially a high-speed heavy haul railway digital traction substation synthesizes emergency protection device.

Background

At present, due to technical limitations, when various fault conditions such as lightning stroke, high-voltage switch insulation breakdown, earthquake, fire, direct-current power supply and the like are encountered, a protection device in the digital traction substation of the high-speed heavy-load railway cannot normally operate (namely, a main power switch cannot effectively trip out), so that a traction power supply system loses effective protection, and adverse hidden dangers are caused to the safe operation of the electrified railway.

Disclosure of Invention

In order to overcome current high-speed heavy haul railway digital traction substation because of there being not reliable protective apparatus as the background the drawback, the utility model provides a 32 double-core DSP as the hardware platform based on the function is powerful, support digital substation standard comprehensively, have the electromagnetic compatibility performance of high standard, make the whole reliability that has the height of equipment, good expansibility, take place the thunderbolt in the protection zone, high-voltage switch insulation breakdown, earthquake, conflagration, after all kinds of fault conditions such as DC power supply, the very first time tripping power supply of ability, the high-speed heavy haul railway digital traction substation who has played effective protection for drawing power supply system from this synthesizes emergent protection device.

The utility model provides a technical scheme that its technical problem adopted is:

the comprehensive emergency protection device for the digital traction substation of the high-speed heavy haul railway comprises a device panel, a power module, a switching value input/output module, a microprocessor module, a communication interface module and input equipment, and is characterized in that the device panel, the power module, the switching value input/output module, the microprocessor module, the communication interface module and the input equipment are arranged in an electric cabinet; the device panel, the switching value input and output module, the microprocessor module, the communication interface module, the power input end of the input equipment and the power output end of the power module are electrically connected; the signal output end of the input equipment is electrically connected with the signal input end of the switching value input-output module, the signal output ends of the device panel and the switching value input-output module are electrically connected with the signal input end of the microprocessor module, and the signal input end of the communication interface module is electrically connected with the signal output end of the microprocessor module; the input device is provided with a plurality of paths of current and voltage input channels which are respectively and electrically connected with the wiring ends of two sets of transformers of the traction substation, and the signal output end of the communication interface module is electrically connected with the signal input end of the opening and closing device for supplying power to the area of the communication interface module.

Furthermore, the microprocessor module adopts a dual-core DSP processor.

Further, the communication interface module has a 2-way ethernet communication interface.

Further, the input device has a merging module.

Furthermore, the device panel comprises a key, an LED indicator light and an LCD, wherein the indicator light comprises an operation light, a communication light, a warning light, a trip indicator light and an overhaul light.

Further, the power module provides 2 sets of regulated power outputs: a set of 5V power supplies and a set of 24V power supplies.

Furthermore, the switching value input and output module is provided with 2 IO plug-ins, and 40-path open input and 12-path open output are provided.

The utility model has the advantages that: in this novel application, input device can gather the regional power supply data of power supply in real time, and after the field transformer took place thunderbolt, high tension switchgear insulation breakdown, earthquake, conflagration, DC power supply fault all kinds of fault conditions such as in the protection zone, the power of ability very first time tripping operation disconnection master power switch has prevented the fault amplification, has played effective protection for drawing power supply system from this. Based on the foregoing, the utility model discloses good application prospect has.

Drawings

Fig. 1 is a block diagram of the present invention.

Detailed Description

As shown in fig. 1, the digital traction substation comprehensive emergency protection device for the high-speed heavy haul railway comprises a device panel, a power module, a switching value input/output module, a microprocessor module, a communication interface module and an input device, wherein the device panel, the power module, the switching value input/output module, the microprocessor module, the communication interface module and the input device are installed in an electric cabinet; the device panel, the switching value input and output module, the microprocessor module, the communication interface module, the power input end of the input device and the power output end of the power module are connected through wires; the signal output end of the input device is connected with the signal input end of the switching value input/output module through a lead, the signal output ends of the device panel and the switching value input/output module are connected with the signal input end of the microprocessor module through a lead, and the signal input end of the communication interface module is connected with the signal output end of the microprocessor module through a lead; the input equipment is provided with 6 paths of current and 6 paths of voltage input channels, wherein 6 paths of current respectively collect No. 1 transformer incoming line A phase current, no. 1 transformer incoming line B phase current, no. 1 transformer incoming line C phase current, no. 2 transformer incoming line A phase current, no. 2 transformer incoming line B phase current and No. 2 transformer incoming line C phase current of the traction substation, and 6 paths of voltage respectively collect No. 1 transformer incoming line AB line voltage, no. 1 transformer incoming line BC line voltage, no. 1 transformer incoming line CA line voltage, no. 2 transformer incoming line AB line voltage, no. 2 transformer incoming line BC line voltage and No. 2 transformer incoming line CA line voltage.

As shown in fig. 1, the microprocessor module adopts a dual-core DSP processor, the core 1 of the processor obtains a current and voltage sampling value from the FPGA, and completes protection and control functions through a protection algorithm and logic judgment, and the main functions include: analog quantity calculation, protection algorithm and logic judgment, switching value input signal monitoring, switching control command output, fault data recording, communication, interface and the like. The communication interface module provides 2-path Ethernet communication interfaces, supports various network structures, supports the adoption of an optical fiber redundancy self-healing double-ring network structure, can meet the requirements of different types of substations on communication networks, and supports IEC 60870-5-103, IEC 60870-5-104, IEC 61850 and other communication protocols. The digital analog quantity of the input equipment comes from a matched combining module, the acquired data is firstly sent into a programmable device FPGA of the combining module through Ethernet in application, and the data is output to a microprocessor module by the FPGA. The device panel consists of keys, LED indicator lamps and an LCD, wherein the LED indicator lamps reflect the working state of the whole device, and comprise operation lamps, communication lamps, warning lamps, trip indicator lamps and maintenance lamps; the operator can check the running state of the device, monitor the input signals of analog quantity and switching value, modify the configuration parameters of the device and the like through the LCD and the keys. The power module provides 2 sets of regulated power outputs: the power supply of 5V and the power supply of 24V are respectively used for supplying power to a CPU plug-in unit, an alternating current plug-in unit, a device panel, a communication interface module and input equipment of the microprocessor module; and the 24V power supply supplies power to the switching value input and output module. The power module is provided with a power switch, a 24V power indicator lamp and a 5V power indicator lamp. The switching value input and output module adopts 2 IO plug-ins, and provides 40-path open input and 12-path open output. The input quantity enters the device in a 220V/110V strong current mode, enters the input equipment and is subjected to photoelectric isolation through an optical coupler, the output quantity is output in a relay idle contact mode and is realized by an ARM microprocessor, and data exchange is performed between the input quantity and a microprocessor module through a CAN bus.

As shown in fig. 1, after the power module is powered on, the power output end outputs power to the power input end of the device panel, the switching value input/output module, the microprocessor module, the communication interface module, and the input device, and the device panel, the switching value input/output module, the microprocessor module, the communication interface module, and the input device are powered on to operate. The input device can collect analog quantity current, voltage and switch position data of the transformer in the power supply area in real time, switch state data are output to the switch quantity input and output module, the analog quantity current and the voltage are converted into digital signals and output to the communication interface module, the switch quantity input and output module and the communication interface module process the signals and then output the signals to the microprocessor module, and when the field power supply is normal, namely the current and the voltage of the transformer are normal, the microprocessor module does not output the signals to the communication interface module. When lightning stroke, high-voltage switch insulation breakdown, earthquake, fire, direct current power supply and other fault conditions occur in a protection area of a field transformer, due to the fact that current and voltage signals input to a microprocessor are abnormal, the microprocessor module can output signals to a communication interface module at the first time, then the communication interface module outputs control instructions to on-site switching-on and switching-off equipment, and therefore the switching-on and switching-off equipment can trip out and disconnect the power supply of a main power switch, fault amplification is prevented, and therefore effective protection is achieved for a traction power supply system. In the circuit, the model of a power supply module is J3DA10, the model of a switching value input/output module is J3IA10, the model of a microprocessor module is J3CA30, and the model of a communication interface module is J3TC21.

The basic principles and essential features of the invention and the advantages thereof have been shown and described above, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other embodiments without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present specification describes embodiments, these embodiments are not intended to encompass only a single embodiment, and such descriptions are merely for clarity, and those skilled in the art will be able to incorporate the teachings herein as a whole, and that the embodiments can be combined as appropriate to form other embodiments, as will be appreciated by those skilled in the art.

Claims

1. The comprehensive emergency protection device for the digital traction substation of the high-speed heavy haul railway comprises a device panel, a power module, a switching value input/output module, a microprocessor module, a communication interface module and input equipment, and is characterized in that the device panel, the power module, the switching value input/output module, the microprocessor module, the communication interface module and the input equipment are arranged in an electric cabinet; the device panel, the switching value input and output module, the microprocessor module, the communication interface module, the power input end of the input equipment and the power output end of the power module are electrically connected; the signal output end of the input equipment is electrically connected with the signal input end of the switching value input/output module, the signal output ends of the device panel and the switching value input/output module are electrically connected with the signal input end of the microprocessor module, and the signal input end of the communication interface module is electrically connected with the signal output end of the microprocessor module; the input device is provided with a plurality of paths of current and voltage input channels which are respectively and electrically connected with the wiring ends of two sets of transformers of the traction substation, and the signal output end of the communication interface module is electrically connected with the signal input end of the opening and closing device for supplying power to the area of the communication interface module.

2. The digital traction substation comprehensive emergency protection device for the high-speed heavy haul railway according to claim 1, wherein the microprocessor module is a dual-core DSP processor.

3. The digital traction substation integrated emergency protection device for the high-speed heavy haul railway according to claim 1, wherein the communication interface module comprises a 2-way ethernet communication interface.

4. The digital traction substation integrated emergency protection device for the high-speed heavy haul railway according to claim 1, wherein the input device comprises a merging module.

5. The digital traction substation comprehensive emergency protection device for the high-speed heavy haul railway according to claim 1, wherein the device panel is composed of keys, LED indicator lamps and LCD, and the indicator lamps comprise an operation lamp, a communication lamp, a warning lamp, a trip indicator lamp and a maintenance lamp.

6. The digital traction substation comprehensive emergency protection device for the high-speed heavy haul railway according to claim 1, wherein the power module provides 2 sets of regulated power outputs: a set of 5V power supplies and a set of 24V power supplies.

7. The digital traction substation integrated emergency protection device for the high-speed heavy haul railway according to claim 1, wherein the switching value input/output module comprises 2 IO cards providing 40-way open input and 12-way open output.