CN111327113A - Special alternating current-direct current power supply monitoring system for railway - Google Patents
Special alternating current-direct current power supply monitoring system for railway Download PDFInfo
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- CN111327113A CN111327113A CN202010162002.6A CN202010162002A CN111327113A CN 111327113 A CN111327113 A CN 111327113A CN 202010162002 A CN202010162002 A CN 202010162002A CN 111327113 A CN111327113 A CN 111327113A
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Abstract
The application provides a special alternating current-direct current power supply monitored control system of railway includes: the system comprises a monitoring host, a comprehensive measurement module, a battery inspection module, a feeder line detection module and a dry contact output module; the monitoring host is configured to: receiving signals of the comprehensive measurement module, the battery inspection module, the feeder line detection module and the dry contact output module; the comprehensive measurement module is configured for detecting alternating-current voltage, direct-current voltage, current, battery temperature, switching value input, switching value output and bus-to-ground insulation voltage; the battery inspection module is configured for detecting the ambient temperature of the battery pack and the voltage of a set number of single batteries; the feeder line detection module is configured to detect a feed-out switch state; the dry contact output module is configured to control the dry contact through a relay output mode. The beneficial effect of this application is: the monitoring host and the bottom layer data acquisition unit adopt a modular design idea, the host and the bottom layer module can be freely combined, and the operation is simple, convenient and comprehensive.
Description
Technical Field
The utility model relates to a high frequency switch direct current monitoring technology field, concretely relates to special alternating current-direct current voltage monitored control system of railway.
Background
The high-frequency switch direct-current power supply system is used as a direct-current power supply required by control, signal, protection, motion communication, direct-current illumination and the like, is applied to the fields of electric power, petroleum, chemical industry, metallurgy, machinery, papermaking, coal, building materials, textile, wine brewing and the like, and has higher requirements on the high-frequency switch direct-current power supply system along with the improvement of science and technology. The existing high-frequency switch direct-current power supply system has low voltage and current stabilization precision, low response speed, large noise, low efficiency and low safety and reliability, so that the high-frequency switch direct-current power supply needs to be monitored.
Disclosure of Invention
The purpose of this application is to provide a special alternating current-direct current power supply monitored control system of railway to above problem.
In a first aspect, the present application provides a special alternating current-direct current power supply monitoring system for a railway, including: the system comprises a monitoring host, a comprehensive measurement module, a battery inspection module, a feeder line detection module and a dry contact output module; the monitoring host is configured to: receiving signals of the comprehensive measurement module, the battery inspection module, the feeder line detection module and the dry contact output module; the integrated measurement module is configured to: detecting alternating current voltage, direct current voltage, current, battery temperature, switching value input, switching value output and bus-to-ground insulation voltage; the battery inspection module adopts an eight-bit single chip microcomputer, and is configured to: detecting the ambient temperature of the battery pack and the voltage of a set number of single batteries in the battery pack; the feeder detection module is configured to: detecting a feed-out switch state, wherein the switch state comprises a switch tripping signal and a switch state signal, and detecting bus-to-ground insulation voltage, a direct-current feed-out branch insulation sensor output signal and a branch current sensor output signal; the dry contact output module adopts a 32-bit ARM processor and is configured to: controlling the dry contact point in a relay output mode; the comprehensive measurement module, the battery inspection module, the feeder line detection module and the dry contact output module are respectively communicated with the monitoring host through an RS485 communication bus.
According to the technical scheme provided by the embodiment of the application, the comprehensive measurement module adopts a ZHCL-3 module; is configured to: detecting 2-path three-phase alternating-current voltage; detecting 6 paths of direct current voltage, 4 paths of current and 2 paths of battery temperature; detecting 32 switching value inputs and 8 switching value outputs; the insulation voltage of the 2-segment bus to the ground is measured, and a 5/7-grade silicon chain is controlled.
According to the technical scheme provided by the embodiment of the application, the battery inspection module adopts PMU-B2, PMU-B3 or PMU-B4.
According to the technical scheme that this application embodiment provided, be equipped with adjustable potentiometre in the module is patrolled and examined to the battery, adjustable potentiometre configuration is used for proofreaying and correct the voltage of battery cell.
According to the technical scheme provided by the embodiment of the application, the feeder detection module adopts IARM-FC05 or IARM-FC 10.
According to the technical scheme provided by the embodiment of the application, the IARM-RC10 is adopted by the dry contact output module.
According to the technical scheme provided by the embodiment of the application, the feeder line detection module is configured to detect the disconnection signal of the switching value and send out a warning.
According to the technical scheme provided by the embodiment of the application, the feeder line detection module is configured to measure the voltage value of the alternating current/direct current signal, the bus-to-ground insulation voltage and the direct current feed-out branch insulation resistance.
According to the technical scheme provided by the embodiment of the application, the battery inspection module is configured to detect the voltage of 19 single batteries.
According to the technical scheme provided by the embodiment of the application, the dry contact output module is configured to: 16 paths of dry contacts are controlled through the output of the relay; wherein 4 relays are set to be normally open and normally closed to output, and the rest 12 relays are set to be normally open to output.
The invention has the beneficial effects that: the application provides a special alternating current-direct current power supply monitored control system of railway includes: the system comprises a monitoring host, a comprehensive measurement module, a battery inspection module, a feeder line detection module and a dry contact output module; the monitoring host is configured to: receiving signals of the comprehensive measurement module, the battery inspection module and the feeder line detection module; the integrated measurement module is configured to: detecting alternating current voltage, direct current voltage, current, battery temperature, switching value input, switching value output and bus-to-ground insulation voltage; the battery inspection module adopts an eight-bit single chip microcomputer, and is configured to: detecting the ambient temperature of the battery pack and the voltage of a set number of single batteries in the battery pack; the feeder detection module is configured to: detecting a feed-out switch state, wherein the switch state comprises a switch tripping signal and a switch state signal, and detecting bus-to-ground insulation voltage, a direct-current feed-out branch insulation sensor output signal and a branch current sensor output signal; the dry contact output module adopts a 32-bit ARM processor and is configured to: controlling the dry contact point in a relay output mode; the comprehensive measurement module, the battery inspection module, the feeder line detection module and the dry contact output module are respectively communicated with the monitoring host through an RS485 communication bus.
The monitoring host and the bottom layer data acquisition unit adopt a modular design idea, the host and the bottom layer module can be freely combined, the monitoring host adopts a color touch screen, and the monitoring host has the characteristics of small volume, simple structure, elegant appearance, convenience in installation, flexibility in assembly system and the like, and the operating interface of the monitoring host is attractive and elegant, the operation is simple, the data organization is compact and reasonable, and better human-computer interaction experience is provided. The main interface of the monitoring main machine can display a main wiring diagram of the power system, display the operation working conditions and information of each functional unit in real time and have an acousto-optic alarm function. And realizing local and remote monitoring of all parameters for each monitored module. The monitoring host has a standard communication interface, so that the monitoring host can be conveniently connected into an automatic system, and a four-remote and unattended intelligent system is realized.
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FIG. 1 is a schematic block diagram of a first embodiment of the present application;
the text labels in the figures are represented as: 100. monitoring the host; 200. a comprehensive measurement module; 300. a battery inspection module; 400. a feeder line detection module; 500. and a dry contact output module.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings, and the description of the present section is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention in any way.
Fig. 1 is a schematic block diagram of a first embodiment of the present application, which includes: the system comprises a monitoring host 100, a comprehensive measurement module 200, a battery inspection module 300, a feeder line detection module 400 and a dry contact output module 500; the monitoring host 100 is configured to: receiving signals of the comprehensive measurement module 200, the battery inspection module 300 and the feeder line detection module 400; the integrated measurement module 200 is configured to: detecting alternating current voltage, direct current voltage, current, battery temperature, switching value input, switching value output and bus-to-ground insulation voltage; the battery inspection module 300 adopts an eight-bit single chip microcomputer, and is configured to: detecting the ambient temperature of the battery pack and the voltage of a set number of single batteries in the battery pack; the feeder detection module 400 is configured to: detecting a feed-out switch state, wherein the switch state comprises a switch tripping signal and a switch state signal, and detecting bus-to-ground insulation voltage, a direct-current feed-out branch insulation sensor output signal and a branch current sensor output signal; the dry contact output module 500 employs a 32-bit ARM processor configured to: controlling the dry contact point in a relay output mode; the comprehensive measurement module 200, the battery inspection module 300, the feeder line detection module 400 and the dry contact output module 500 are respectively communicated with the monitoring host 100 through an RS485 communication bus.
In this embodiment, the monitoring host 100 and each module, i.e., each bottom layer data acquisition unit, adopt a modular design concept, and the host and each module can be freely combined according to actual requirements, so that the comprehensive measurement module 200, the battery inspection module 300, the feeder line detection module 400, and the dry contact output module 500 in this embodiment are optional modules of the monitoring host 100.
In the embodiment, the monitoring host 100 adopts a WSK-GT/C10 color 800 × dot matrix LCD and a touch monitor, and has the advantages of small volume, simple structure, elegant appearance, convenient installation and flexible assembly.
In a preferred embodiment, the integrated measurement module 200 employs a ZHCL-3 module configured to: detecting 2-path three-phase alternating-current voltage and controlling alternating-current mutual input; detecting 6 paths of direct current voltage, 4 paths of current and 2 paths of battery temperature; 32 switching value inputs are detected, 8 switching value outputs are detected, wherein K1, K2 and K3 can be used for controlling a 5/7-level silicon chain; the 2-segment bus-to-ground insulation voltage was measured. In the preferred embodiment, the ZHCL-3 module adopts a three-phase three-wire system connection mode when measuring the alternating voltage, and the alternating voltage is directly connected to the alternating voltage measuring port without other conversion.
In the preferred embodiment, the ZHCL-3 module adopts a closed-loop Hall current sensor for current sampling, and the closed-loop Hall current sensor has the good characteristics of good linearity and precision, low drift, fast response time, wide frequency band, high insulation between primary and secondary sides and the like. The ZHCL-3 module is connected to the current sensor using a three-core plastic-copper shielded sheathed cord.
In the preferred embodiment, the ZHCL-3 module switching value input detection uses an optical coupling isolation detection technology, 32 switching value inputs are detected, and a switching value input node is a passive node.
In the preferred embodiment, the ZHCL-3 module provides 8 switching outputs, relay node capacities AC250V/5A and DC 30V/5A. The 8 switching value outputs are respectively marked as K1-K8, the switching value outputs are defined to be controlled by the monitoring host 100, wherein K1, K2 and K3 can be used for silicon chain control.
The battery inspection module 300 in this embodiment adopts a PMU-B2 module, and in other embodiments, the battery inspection module 300 may also adopt PMU-B3 or PMU-B4. In this embodiment, the battery inspection module 300 is configured to detect the voltage of 19 single batteries.
In this embodiment, an adjustable potentiometer is disposed in the PMU-B2 module, and the adjustable potentiometer is configured to correct the voltage of the battery cell.
In this embodiment, the feeder detection module 400 adopts an IARM-FC10 module, and in other embodiments, the feeder detection module 400 may also adopt an IARM-FC 05.
The IARM-FC10 has 64 branch detection points, the IARM-FC05 has 32 branch detection points, the switch is used as an object for measurement, and the detected parameters can be flexibly configured. During detection, the detection amount of a single switch is required to be completed on one feeder line detection module 400, and the measurement amount of a switch is not required to be completed by different feeder line modules.
In a preferred embodiment, the feeder detection module 400 may be further configured to detect a disconnection signal of the switching value and issue a warning.
In a preferred embodiment, the feeder line detection module 400 may be further configured to measure a voltage value of the ac/dc signal, a bus-to-ground insulation voltage, and a dc feed-out branch insulation resistance. In the preferred embodiment, when the feeder line detection module 400 is configured in the monitoring system, the bus-to-ground insulation voltage is detected by the feeder line detection module 400, and when the feeder line detection module 400 is not configured in the monitoring system, the bus-to-ground insulation voltage is detected by the comprehensive measurement module 200.
In this embodiment, the feeder detection module 400 detects the switch trip signal by using the trip auxiliary signal from the switch, and the input mode of the trip auxiliary signal can be set according to each feeder module, and the trip auxiliary signal has a normally open input mode or a normally closed input mode, and requires a passive contact during detection. The feeder detection module 400 performs switch trip detection by sequentially wiring from the branch F01.
In this embodiment, the feeder detection module 400 detects the switch status signal as a position auxiliary signal of the switch, and the input mode may be set according to each feeder module, and the input mode may be a normally open input mode or a normally closed input mode, and the detection mode requires a passive contact. When the feeder line detection module 400 performs the switch state detection, the feeder line detection module starts to sequentially distribute the line after the last trip signal.
In this embodiment, the feeder line detection module 400 can detect the voltage to ground of the bus, the resistance to ground of the bus, and the resistance to ground of the branch. The bus line ground resistance measurement adopts a controllable bridge, and the combination of a balanced bridge and an unbalanced bridge is realized, so that the ground resistance detection function of the bus and the branch is realized.
A plurality of feeder line detection modules 400 can be arranged in one section of bus, at most 96 feeder line detection modules are arranged in the bus, only one feeder line detection module 400 is required to be arranged as a master, and the other feeder line detection modules are arranged as slaves. If the system has two buses, the feeder line detection module 400 CAN also realize the parallel operation of the two feeder line detection modules 400 without mutual interference, the mechanism is that a host is required to be arranged in the two buses, the two hosts carry out synchronous processing through a specified RS485 port, the feeder line detection module 400 in each section carries out synchronization through a CAN port, and the two synchronous mechanisms are used for realizing the parallel operation of the insulation detection of the two feeder lines.
The master-slave set of the feeder line detection module 400 is set by a dial switch, and only one of the master set and the slave set must be set in each section.
In order to reduce the decrease of system insulation caused by active grounding of the balance bridge, in this embodiment, only the master is required to be connected with the bus sampling signal, and all the slaves are not required to be connected with the bus sampling signal.
The branch detection of the feeder detection module 400 adopts a micro-current sensor, and the sensor adopts plus or minus 12V power supply. When the sensor is broken or the output signal of the sensor is abnormal, the device can correctly identify the sensor and report the abnormal signal of the sensor.
In the embodiment, the output signals of the branch insulation sensors are sequentially distributed after being connected with the last switch state signal.
In this embodiment, the feeder line detection module 400 is a pure self-cooling heat dissipation module, so the module should be installed vertically, and the model screen printing is directly facing to the viewer, so it is not suitable to be installed horizontally, otherwise it may cause the internal temperature to be too high and damage the device.
In this embodiment, the dry contact output module 500 employs IARM-RC 10. IARM-RC10 is configured to: 16 paths of dry contacts are controlled through the output of the relay; wherein 4 relays are set to be normally open and normally closed to output, and the rest 12 relays are set to be normally open to output.
The principles and embodiments of the present application are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present application, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments, or may be learned by practice of the invention.
Claims (10)
1. Special alternating current-direct current power supply monitored control system of railway, its characterized in that includes: the system comprises a monitoring host, a comprehensive measurement module, a battery inspection module, a feeder line detection module and a dry contact output module;
the monitoring host is configured to: receiving signals of the comprehensive measurement module, the battery inspection module, the feeder line detection module and the dry contact output module;
the integrated measurement module is configured to: detecting alternating current voltage, direct current voltage, current, battery temperature, switching value input, switching value output and bus-to-ground insulation voltage;
the battery inspection module adopts an eight-bit single chip microcomputer, and is configured to: detecting the ambient temperature of the battery pack and the voltage of a set number of single batteries in the battery pack;
the feeder detection module is configured to: detecting a feed-out switch state, wherein the switch state comprises a switch tripping signal and a switch state signal, and detecting bus-to-ground insulation voltage, a direct-current feed-out branch insulation sensor output signal and a branch current sensor output signal;
the dry contact output module adopts a 32-bit ARM processor and is configured to: controlling the dry contact point in a relay output mode;
the comprehensive measurement module, the battery inspection module, the feeder line detection module and the dry contact output module are respectively communicated with the monitoring host through an RS485 communication bus.
2. The railway-specific AC/DC power supply monitoring system of claim 1, wherein the comprehensive measurement module is a ZHCL-3 module; is configured to: detecting 2-path three-phase alternating-current voltage; detecting 6 paths of direct current voltage, 4 paths of current and 2 paths of battery temperature; detecting 32 switching value inputs and 8 switching value outputs; the insulation voltage of the 2-segment bus to the ground is measured, and a 5/7-grade silicon chain is controlled.
3. The railway-specific AC/DC power monitoring system of claim 1, wherein the battery inspection module employs PMU-B2, PMU-B3 or PMU-B4.
4. The railway-specific alternating current-direct current power supply monitoring system according to claim 1, wherein an adjustable potentiometer is arranged in the battery inspection module, and the adjustable potentiometer is configured to correct the voltage of the single battery.
5. The railway-specific AC/DC power supply monitoring system of claim 1, wherein the feeder detection module is IARM-FC05 or IARM-FC 10.
6. The railway specific ac/dc power monitoring system of claim 1, wherein said dry contact output module is IARM-RC 10.
7. The system of claim 1, wherein the feeder detection module is configured to detect a disconnection signal of a switching value and send out a warning.
8. The system of claim 1, wherein the feeder detection module is configured to measure a voltage value of an ac/dc signal, a bus-to-ground insulation voltage, and a dc feed-out branch insulation resistance.
9. The railway-specific AC/DC power supply monitoring system of claim 1, wherein the battery inspection module is configured to detect the voltage of 19 cells.
10. The railway-specific AC/DC power monitoring system of claim 1, wherein the dry contact output module is configured to: 16 paths of dry contacts are controlled through the output of the relay; wherein 4 relays are set to be normally open and normally closed to output, and the rest 12 relays are set to be normally open to output.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010162002.6A CN111327113A (en) | 2020-03-10 | 2020-03-10 | Special alternating current-direct current power supply monitoring system for railway |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010162002.6A CN111327113A (en) | 2020-03-10 | 2020-03-10 | Special alternating current-direct current power supply monitoring system for railway |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203224608U (en) * | 2013-02-21 | 2013-10-02 | 蒋正坤 | Alternate current and direct current power supply monitoring system |
| CN105022352A (en) * | 2014-04-16 | 2015-11-04 | 镇江华科通信设备有限公司 | Alternating current detection module and a power supply identification supervision system |
| CN205092662U (en) * | 2015-11-18 | 2016-03-16 | 三河益生电子科技开发有限公司 | Electric power is with intelligent alternating current -direct current integration power supply monitoring system |
| US20190103761A1 (en) * | 2017-10-02 | 2019-04-04 | Enatel Limited | Modular Power Systems |
| CN110198078A (en) * | 2019-06-06 | 2019-09-03 | 国网山东省电力公司临沂供电公司 | A kind of communication power supply monitoring method based on dry contact |
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- 2020-03-10 CN CN202010162002.6A patent/CN111327113A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203224608U (en) * | 2013-02-21 | 2013-10-02 | 蒋正坤 | Alternate current and direct current power supply monitoring system |
| CN105022352A (en) * | 2014-04-16 | 2015-11-04 | 镇江华科通信设备有限公司 | Alternating current detection module and a power supply identification supervision system |
| CN205092662U (en) * | 2015-11-18 | 2016-03-16 | 三河益生电子科技开发有限公司 | Electric power is with intelligent alternating current -direct current integration power supply monitoring system |
| US20190103761A1 (en) * | 2017-10-02 | 2019-04-04 | Enatel Limited | Modular Power Systems |
| CN110198078A (en) * | 2019-06-06 | 2019-09-03 | 国网山东省电力公司临沂供电公司 | A kind of communication power supply monitoring method based on dry contact |
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Application publication date: 20200623 |