CN110739620A - Active vibration reduction system of box type transformer substation for railways - Google Patents
Active vibration reduction system of box type transformer substation for railways Download PDFInfo
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- CN110739620A CN110739620A CN201910946614.1A CN201910946614A CN110739620A CN 110739620 A CN110739620 A CN 110739620A CN 201910946614 A CN201910946614 A CN 201910946614A CN 110739620 A CN110739620 A CN 110739620A
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- vibration
- substation
- active vibration
- transformer substation
- vibration reduction
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/54—Anti-seismic devices or installations
Abstract
The invention discloses an railway box-type substation active vibration reduction system, which relates to the technical field of noise vibration reduction and comprises a substation cabinet and a control system, wherein a magnetorheological elastomer vibration isolation pad, a flat coil and a vibration acceleration sensor are arranged in the substation cabinet, the control system comprises an active vibration reduction controller, the active vibration reduction controller obtains a vibration acceleration signal and a flat coil driving current based on the vibration acceleration sensor and the flat coil in operation to be used as the input and the output of the active vibration reduction controller, the vibration acceleration sensor is arranged on key electrical equipment in a substation, the system adopts a novel magnetorheological elastomer intelligent material, can actively inhibit the harm of environmental vibration noise to a box body and the electrical equipment under the condition of not changing the arrangement of the original box body structure and the electrical equipment of the substation, and is easy to realize strong reliability.
Description
Technical Field
The invention relates to the technical field of noise vibration reduction, in particular to an active vibration reduction system of a box type transformer substation for railways.
Background
The requirement of high-speed development of railways puts higher requirements on the safety and reliability of railway signal power supply, and intelligent modules such as remote measurement, remote signaling and the like are added to the intelligent box-type substation for railways on the basis of a conventional substation, so that the remote monitoring and automatic control of the railway signal power supply are realized;
however, the railway box substation is installed near rails, and when a train passes at a high speed, vibration of a substation cabinet is caused by vibration of a rail bed and transmission of sound vibration, and long-term vibration adversely affects the service life of a mechanical structure, an electrical module, and a storage battery of the substation cabinet.
Disclosure of Invention
Solves the technical problem
The invention aims to solve the technical problem of providing active damping systems of box-type transformer substations for railways.
kinds of railway use box-type substation initiative damping system, including cabinet and control system of the transformer substation, there are magnetic current to become elastomer vibration isolation pad, flat coil and vibration acceleration transducer in the cabinet of the said transformer substation;
the control system comprises an active vibration reduction controller, wherein the active vibration reduction controller is used for obtaining vibration acceleration signals and flat coil driving current from a vibration acceleration sensor and a flat coil in operation as input and output of the active vibration reduction controller, the vibration acceleration sensor is arranged on key electrical equipment in a transformer substation, and a structural dynamics model of the box-type transformer substation is established according to the vibration noise intensity obtained by testing when a train approaches, so that an active vibration reduction control algorithm is designed;
the magnetorheological elastomer vibration isolation pad is laid at the bottom of the transformer substation cabinet and has the same variable rigidity and damping coefficient with the direct-current magnetic field;
the flat coil is formed by winding a conductive coil, and the winding size and parameters of the flat coil are determined based on the maximum variation range of the rigidity and the damping coefficient of the magnetorheological elastomer vibration isolator under the direct-current magnetic field.
Further , the magnetorheological elastomer vibration isolator may be configured to have a specific surface area that is larger than the actual surface area of the substation cabinet.
, four flat coils are arranged, and the flat coils are diagonally arranged at the corners of the magnetorheological elastomer vibration isolator.
Compared with the prior art, the active vibration damping system for the railway box-type substation has the advantages that active vibration damping systems for the railway box-type substation can realize active suppression of external vibration noise by the systems through the arrangement of the magnetorheological elastomer vibration isolation pads and the flat coils on the premise of not changing the basic structure of the box-type substation, and can be suitable for equipment with large vibration noise in various working environments, meanwhile, the active vibration damping systems can adopt various mature control algorithms, are easy to realize and verify, and the applicability of the systems is further improved .
Drawings
FIG. 1 is a schematic view of a magnetorheological elastomer and a pancake coil arrangement according to the present invention.
Fig. 2 is a control schematic diagram of the intelligent substation control system of the invention.
Fig. 3 is a schematic diagram of the intelligent substation cabinet arrangement of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the technical scheme in the embodiment of the invention will be clearly and completely described below with reference to the attached drawings in the embodiment of the invention.
In an embodiment, as shown in fig. 1 and 2, active vibration reduction systems for railway box-type substations include a substation cabinet and a control system, wherein a magnetorheological elastomer vibration isolator, a flat coil and a vibration acceleration sensor are arranged in the substation cabinet, the specific area size of the magnetorheological elastomer vibration isolator should be larger than the actual floor area of the substation cabinet when the magnetorheological elastomer vibration isolator is arranged, the number of the flat coils is four, and the flat coils are diagonally arranged at corners of the magnetorheological elastomer vibration isolator;
the control system comprises an active vibration damping controller, wherein the active vibration damping controller is used for acquiring a vibration acceleration signal and a flat coil driving current based on a vibration acceleration sensor and a flat coil in operation to serve as input and output of the active vibration damping controller, the vibration acceleration sensor is arranged on key electrical equipment in a transformer substation, a box-type transformer substation structure dynamic model is established according to the vibration noise intensity obtained by testing when a train approaches, and an active vibration damping control algorithm is designed, wherein the algorithm for designing can adopt various existing mature control algorithms, the universality of the system is improved, the vibration acceleration sensor is fixed on the outer side wall of the electrical equipment when being arranged, and the input end and the output end of the vibration acceleration sensor are respectively and electrically connected with a transformer substation cabinet power circuit and the input end of the active vibration damping controller through external cables;
the magnetorheological elastomer vibration isolation pad is laid at the bottom of the transformer substation cabinet, has the rigidity and the damping coefficient which are changed with the direct-current magnetic field, and is directly contacted with the corner of the cabinet or the cabinet support leg with the support leg during arrangement;
the flat coil is formed by winding a conductive coil, the winding size and parameters of the flat coil are determined based on the maximum variation range of the rigidity and the damping coefficient of the magnetorheological elastomer vibration isolation pad under the direct-current magnetic field, the flat coil is embedded and filled at the joint of the magnetorheological elastomer vibration isolation pad and the bottom of the cabinet during arrangement, the input end of the flat coil is connected into a power circuit in the transformer substation cabinet after the arrangement of the flat coil is finished, and the output end of the flat coil is connected into the active vibration reduction controller.
Here, the upper, lower, left, right, front, and rear represent only relative positions thereof and do not represent absolute positions thereof. The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (3)
- The active vibration reduction system of the box type transformer substation for the railway is characterized by comprising a transformer substation cabinet and a control system, wherein a magnetorheological elastomer vibration isolation pad, a flat coil and a vibration acceleration sensor are arranged in the transformer substation cabinet;the control system comprises an active vibration reduction controller, wherein the active vibration reduction controller is used for obtaining vibration acceleration signals and flat coil driving current from a vibration acceleration sensor and a flat coil in operation as input and output of the active vibration reduction controller, the vibration acceleration sensor is arranged on key electrical equipment in a transformer substation, and a structural dynamics model of the box-type transformer substation is established according to the vibration noise intensity obtained by testing when a train approaches, so that an active vibration reduction control algorithm is designed;the magnetorheological elastomer vibration isolation pad is laid at the bottom of the transformer substation cabinet and has the same variable rigidity and damping coefficient with the direct-current magnetic field;the flat coil is formed by winding a conductive coil, and the winding size and parameters of the flat coil are determined based on the maximum variation range of the rigidity and the damping coefficient of the magnetorheological elastomer vibration isolator under the direct-current magnetic field.
- 2. The active vibration damping system for railway box-type substation according to claim 1, wherein the specific area size of the MR elastomer vibration isolator should be larger than the actual floor area of the substation cabinet when it is arranged.
- 3. The active vibration damping system of railway box-type substation according to claim 1, wherein there are four said flat coils, and said flat coils are diagonally arranged at the corners of the magnetorheological elastomer vibration isolator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910946614.1A CN110739620A (en) | 2019-10-06 | 2019-10-06 | Active vibration reduction system of box type transformer substation for railways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910946614.1A CN110739620A (en) | 2019-10-06 | 2019-10-06 | Active vibration reduction system of box type transformer substation for railways |
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| CN110739620A true CN110739620A (en) | 2020-01-31 |
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| CN201910946614.1A Pending CN110739620A (en) | 2019-10-06 | 2019-10-06 | Active vibration reduction system of box type transformer substation for railways |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112670052A (en) * | 2020-12-15 | 2021-04-16 | 南京师范大学 | TMMRE-based active vibration reduction system for power transformer |
| CN112942614A (en) * | 2021-03-03 | 2021-06-11 | 哈尔滨工业大学 | Active vibration isolation device of near-zero magnetic space combining fiber grating and dielectric elastomer |
| CN112982501A (en) * | 2021-03-03 | 2021-06-18 | 哈尔滨工业大学 | Dielectric elastomer active micro-vibration isolation device based on deformation measurement in near-zero magnetic space |
| CN117113909A (en) * | 2023-10-25 | 2023-11-24 | 湖南大学 | Transformer optimal design method and system with vibration suppression as guide |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204706802U (en) * | 2014-11-27 | 2015-10-14 | 湖南博信电气有限公司 | Railway telemechanical Intelligent Combined Substation |
| CN105197353A (en) * | 2015-10-06 | 2015-12-30 | 王春林 | Special box for small living thing transportation |
| CN105805203A (en) * | 2014-12-31 | 2016-07-27 | 上海微电子装备有限公司 | Vibration damper and vibration damping method |
| CN207725412U (en) * | 2017-12-29 | 2018-08-14 | 中国科学技术大学 | Rigidity adjustable fire axle box positioning elastic node based on magnetic rheology elastic body |
| CN109873332A (en) * | 2019-02-24 | 2019-06-11 | 郑素英 | It is a kind of to be convenient for changing the electric power box of frequency based on noise reduction |
-
2019
- 2019-10-06 CN CN201910946614.1A patent/CN110739620A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204706802U (en) * | 2014-11-27 | 2015-10-14 | 湖南博信电气有限公司 | Railway telemechanical Intelligent Combined Substation |
| CN105805203A (en) * | 2014-12-31 | 2016-07-27 | 上海微电子装备有限公司 | Vibration damper and vibration damping method |
| CN105197353A (en) * | 2015-10-06 | 2015-12-30 | 王春林 | Special box for small living thing transportation |
| CN207725412U (en) * | 2017-12-29 | 2018-08-14 | 中国科学技术大学 | Rigidity adjustable fire axle box positioning elastic node based on magnetic rheology elastic body |
| CN109873332A (en) * | 2019-02-24 | 2019-06-11 | 郑素英 | It is a kind of to be convenient for changing the electric power box of frequency based on noise reduction |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112670052A (en) * | 2020-12-15 | 2021-04-16 | 南京师范大学 | TMMRE-based active vibration reduction system for power transformer |
| CN112942614A (en) * | 2021-03-03 | 2021-06-11 | 哈尔滨工业大学 | Active vibration isolation device of near-zero magnetic space combining fiber grating and dielectric elastomer |
| CN112982501A (en) * | 2021-03-03 | 2021-06-18 | 哈尔滨工业大学 | Dielectric elastomer active micro-vibration isolation device based on deformation measurement in near-zero magnetic space |
| CN112982501B (en) * | 2021-03-03 | 2022-05-31 | 哈尔滨工业大学 | Dielectric elastomer active micro-vibration isolation device based on deformation measurement in near-zero magnetic space |
| CN117113909A (en) * | 2023-10-25 | 2023-11-24 | 湖南大学 | Transformer optimal design method and system with vibration suppression as guide |
| CN117113909B (en) * | 2023-10-25 | 2024-01-09 | 湖南大学 | Transformer optimal design method and system with vibration suppression as guide |
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