CN102930072A - Train wiring low-frequency magnetic-field analysis method - Google Patents
Train wiring low-frequency magnetic-field analysis method Download PDFInfo
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- CN102930072A CN102930072A CN2012103504720A CN201210350472A CN102930072A CN 102930072 A CN102930072 A CN 102930072A CN 2012103504720 A CN2012103504720 A CN 2012103504720A CN 201210350472 A CN201210350472 A CN 201210350472A CN 102930072 A CN102930072 A CN 102930072A
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Abstract
The invention relates to a train wiring low-frequency magnetic-field analysis method, which is characterized in that by collecting relevant train and cable data, establishing a train model and a real harness model and conducting magnetic simulation analysis for the entire train and the energy of a low-frequency magnetic field, equipment corresponding to a maximal intensity point of the magnetic point is found out, so that an excessive source of the magnetic field can be found out; and the excessive source can be modified to be finally qualified. Due to adopting the train wiring low-frequency magnetic-field analysis method, wiring rework caused by disqualification of magnetic field test can be effectively avoided, the design time period of the train can be saved, and the design quality of the magnetic field control in the train wiring can be guaranteed. The entire simulation analysis can be simulated at the design stage of the vehicle, so that once the excessive problem is discovered, correction can be conducted in time in the design. The wiring controlled by the method can meet the electrical technical requirements, and the human body safety requirement of a carriage magnetic field also can be met.
Description
Technical field
The present invention relates to a kind of train wiring low frequency magnetic field analytical approach.
Background technology
The moulding of once connecting up is adopted in the analysis of conventional train wiring low frequency magnetic field, and understand the train Distribution of Magnetic Field generally is to choose some exemplary position by the scene to carry out measurement of magnetic field, improves if magnetic field exceeds standard again.At present, for the analysis of train low frequency magnetic field, normal conditions are by control subsystem supplier's EMC index, and type approval test phase acquisition train low frequency magnetic field data verify whether reach requirement.After the shortcoming of doing like this is that test is finished, if any the problem of exceeding standard, need to the one by one analysis of system from design effort, finally find the source that exceeds standard, and then re-start technological design.Compare like this labor intensive material resources, do not meet the theory of EMC management.
Summary of the invention
Technical matters to be solved by this invention is, overcomes the above-mentioned deficiency of prior art, and a kind of train wiring low frequency magnetic field analytical approach is provided.
In order to solve above technical matters, train wiring low frequency magnetic field analytical approach provided by the invention is characterized in that in turn including the following steps:
The first step: according to train primary design situation in the project, train is carried out the prewiring first time;
Second step: set up the train whole vehicle model, assembling high-tension cable model and device model are finished the Electric modeling in whole vehicle model, and to the modeling of key position emphasis and tessellated mesh;
The 3rd step: in model, apply current excitation according to the electrical design parameter;
The 4th step: analyze the scope of invading in the car in magnetic field with the equipotential surface method and distribute;
The 5th step: the passenger safety zone is invaded in the magnetic field that judged whether to exceed standard, if exceed then find the source that exceeds standard, and rectification is designed in the source that exceeds standard, and rectification went to for the 3rd step after finishing, until reach requirement.
The present invention further improves and is:
1, as follows to the amelioration method in the source that exceeds standard in the 5th step:
I, optimize place, the source cable that exceeds standard apart from the distance in passenger safety zone, and leave the safe enough allowance;
II, the cable that the meets the demands range data apart from the passenger safety zone is gathered;
III, consideration technological factor, the wiring of satisfying magnetic field and cable craft requirement is finished in wiring again.
2, after assembling model is finished in the second step, whole vehicle model is simplified, deletion screw hole, hole seam information are to reduce operand.
Innovative point of the present invention is: collect relevant train and cable data, set up train model, actual wire harness model and to car load and the wire harness that mainly produces the low frequency magnetic field energy carry out Magnetic Field Simulation Analysis, find out equipment corresponding to magnetic field intensity maximum point, find out the source that exceeds standard, magnetic field.Can effectively avoid the defective wiring that causes of measurement of magnetic field to do over again by the use of this programme, save the train design time cycle, guarantee the designing quality of magnetic field control in the train wiring.Whole simulation analysis all just can simulate out in vehicle design phase, so in a single day find the problem that exceeds standard, can in time correct in design.
As seen, the present invention is by planned secondary wiring, with the equipotential surface method to the car internal magnetic field Simulation Control that tentatively connects up, obtain the distributed areas of the magnetic field limit envelope that cable produces on the train, the electrotechnical requirement can be satisfied with the wiring after this method control, the human-body safety requirement of magnetic field, guest room can be satisfied again.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.
The present embodiment train wiring low frequency magnetic field analytical approach in turn includes the following steps:
The first step: according to train primary design situation in the project, train is carried out the prewiring first time;
Second step: set up the train whole vehicle model, assembling high-tension cable model and device model are finished the Electric modeling in whole vehicle model, and to the modeling of key position emphasis and tessellated mesh;
In order to reduce calculated amount, increase work efficiency, after assembling model is finished in this step, whole vehicle model to be simplified, deletion screw hole, hole seam information are to reduce operand.
The 3rd step: in model, apply electric excitation according to the electric souffle design parameter;
The 4th step: analyze the scope of invading in the car in magnetic field with the equipotential surface method and distribute;
The 5th step: the passenger safety zone is invaded in the magnetic field that judged whether to exceed standard, if exceed then find the source that exceeds standard, and rectification is designed in the source that exceeds standard, and rectification went to for the 3rd step after finishing, until reach requirement.
As follows to the amelioration method in the source that exceeds standard in above-mentioned the 5th step:
I, optimize place, the source cable that exceeds standard apart from the distance in passenger safety zone, and leave the safe enough allowance;
II, the cable that the meets the demands range data apart from the passenger safety zone is gathered;
III, consideration technological factor, the wiring of satisfying magnetic field and cable craft requirement is finished in wiring again.
This method is analyzed in advance and is processed the potential problems in the product design process according to the EMC management philosophy, has reduced the loss of unnecessary manpower and materials.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (3)
1. train wiring low frequency magnetic field analytical approach is characterized in that in turn including the following steps:
The first step: according to train primary design situation in the project, train is carried out the prewiring first time;
Second step: set up the train whole vehicle model, assembling high-tension cable model and device model are finished the Electric modeling in whole vehicle model, and to the modeling of key position emphasis and tessellated mesh;
The 3rd step: in model, apply current excitation according to the electrical design parameter;
The 4th step: analyze the scope of invading in the car in magnetic field with the equipotential surface method and distribute;
The 5th step: the passenger safety zone is invaded in the magnetic field that judged whether to exceed standard, if exceed then find the source that exceeds standard, and rectification is designed in the source that exceeds standard, and rectification went to for the 3rd step after finishing, until reach requirement.
2. train according to claim 1 wiring low frequency magnetic field analytical approach is characterized in that: as follows to the amelioration method in the source that exceeds standard in the 5th step:
I, optimize place, the source cable that exceeds standard apart from the distance in passenger safety zone, and leave the safe enough allowance;
II, the cable that the meets the demands range data apart from the passenger safety zone is gathered;
III, consideration technological factor, the wiring of satisfying magnetic field and cable craft requirement is finished in wiring again.
3. train wiring low frequency magnetic field analytical approach according to claim 1 is characterized in that: after assembling model is finished in the described second step, whole vehicle model is simplified, deleted screw hole, hole seam information, to reduce operand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103504720A CN102930072A (en) | 2012-09-20 | 2012-09-20 | Train wiring low-frequency magnetic-field analysis method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103504720A CN102930072A (en) | 2012-09-20 | 2012-09-20 | Train wiring low-frequency magnetic-field analysis method |
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| CN102930072A true CN102930072A (en) | 2013-02-13 |
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| CN2012103504720A Pending CN102930072A (en) | 2012-09-20 | 2012-09-20 | Train wiring low-frequency magnetic-field analysis method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105260583A (en) * | 2015-11-27 | 2016-01-20 | 国网重庆市电力公司电力科学研究院 | Method and system for calculating biological effect of extra-high-voltage power frequency electromagnetic field on human body |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007310670A (en) * | 2006-05-18 | 2007-11-29 | Nissan Motor Co Ltd | Development support device and design fault verification method of on-vehicle electric system |
| CN101407223A (en) * | 2008-11-25 | 2009-04-15 | 北京佳讯飞鸿电气股份有限公司 | Railway line wind power monitoring system and traveling guide method based on the system |
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2012
- 2012-09-20 CN CN2012103504720A patent/CN102930072A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007310670A (en) * | 2006-05-18 | 2007-11-29 | Nissan Motor Co Ltd | Development support device and design fault verification method of on-vehicle electric system |
| CN101407223A (en) * | 2008-11-25 | 2009-04-15 | 北京佳讯飞鸿电气股份有限公司 | Railway line wind power monitoring system and traveling guide method based on the system |
Non-Patent Citations (2)
| Title |
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| 方俊: "城市地铁电磁兼容研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
| 祝言菊 等: "汽车的整车建模及其电磁兼容仿真", 《四川省电工技术学会第九届学术年会论文集》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105260583A (en) * | 2015-11-27 | 2016-01-20 | 国网重庆市电力公司电力科学研究院 | Method and system for calculating biological effect of extra-high-voltage power frequency electromagnetic field on human body |
| CN105260583B (en) * | 2015-11-27 | 2020-07-24 | 国网重庆市电力公司电力科学研究院 | Method and system for calculating biological effect of ultra-high voltage power frequency electromagnetic field on human body |
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Application publication date: 20130213 |