CN203933041U - Power rectifier feedback device - Google Patents
Power rectifier feedback device Download PDFInfo
- Publication number
- CN203933041U CN203933041U CN201420242970.8U CN201420242970U CN203933041U CN 203933041 U CN203933041 U CN 203933041U CN 201420242970 U CN201420242970 U CN 201420242970U CN 203933041 U CN203933041 U CN 203933041U
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- Prior art keywords
- main
- feedback
- parallel operation
- feedback device
- optical fiber
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- 239000013307 optical fiber Substances 0.000 claims abstract description 35
- 239000000835 fiber Substances 0.000 claims abstract description 29
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Abstract
The utility model relates to a kind of power rectifier feedback device, this device comprises a main rectification feedback device, comprise main feedback unit and main filter unit, parallel operation fibre optic plate main website is housed on described main feedback unit, described parallel operation fibre optic plate main website is equipped with optical fiber interface plate, and described optical fiber interface plate is provided with the first fiber optical transceiver; And many from rectification feedback device, every comprises that from rectification feedback device one from feedback unit and one from filter unit, describedly from feedback unit, parallel operation fibre optic plate slave station is housed, described parallel operation fibre optic plate slave station is equipped with optical fiber interface plate, and described optical fiber interface plate is provided with the second fiber optical transceiver communicating with described the first fiber optical transceiver.The utility model is conducive to main rectification feedback device to be processed and reaches effective control according to the data of adopting, and is conducive to each slave and by the actual working state that gathers self, carries out self monitoring and protection.
Description
Technical field
The utility model relates to the capacity-enlargement technology of rectification feedback device, refers to particularly a kind of power rectifier feedback device.
Background technology
Rectification feedback device can be rectified into direct current by three-phase alternating current and provide DC power supply to other equipment such as inverters, simultaneously also can be by unnecessary energy back to electrical network.Because it has the characteristic of energy in bidirectional flow, and can achieve effective control be also referred to as active active front end (AFE).On many transmissions of general low-voltage market, rectification feedback device is occupied most of market by foreign brand name always at home.Mainly that domestic prior art is not mature enough, during energy feedback, mains by harmonics is larger, efficiency is lower, simultaneously owing to being subject to the capacity limit of device for power switching, most manufacturers can only produce the type of the following capacity of 500KVA, for the rectification feedback device of larger capacity, can adopt the technology of many rectified feedback unit parallel connections.Parallel extended by many rectified feedback units, can realize the increase of rectification feedback installed capacity, in many transmissions use field, realize feedback and the recycling of excess energy, improve the service efficiency of electric energy.Many rectified feedback unit parallel connections must solve following problem:
1, during many rectified feedback unit parallel operation, when main frame and other slaves will guarantee feedback grid when feedback, voltage and current frequency, phase place, the amplitude of every must reach consistent or be less than admissible error, otherwise can cause unstable or certain the individual unit operation irregularity of system.Between each inversion unit, produce circulation.
2, during many rectified feedback unit parallel operation, guarantee main frame from other slave image data and to send the response speed of instruction enough fast, guarantee main frame and slave keep strokes or time delay in permissible range, otherwise can cause control not in time, system is unstable, produces circulation between slave.
3, during many rectified feedback unit parallel operation, main frame and all slaves output current-sharing require high, and current-sharing comprises meritorious and idle current-sharing, and the mean allocation of power comprises the mean allocation of active power and reactive power.
4,, during many rectified feedback unit parallel operation, when current-sharing or synchronous when abnormal, whole system will have corresponding protection fast and process, and when separate unit rectified feedback unit breaks down, guarantee that self can respond fast and protect.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the utility model object is to provide a kind of power rectifier feedback device, to solve the problem existing in many rectified feedback units process in parallel.
The technical scheme that realizes the employing of the utility model object is: a kind of power rectifier feedback device, and this device comprises:
A main rectification feedback device, comprise main feedback unit and main filter unit, described main feedback unit is connected by copper bar or cable with main filter unit, parallel operation fibre optic plate main website is housed on described main feedback unit, described parallel operation fibre optic plate main website is equipped with optical fiber interface plate, and described optical fiber interface plate is provided with the first fiber optical transceiver; And
Many from rectification feedback device, every comprises that from rectification feedback device one from feedback unit and one from filter unit, every from rectification feedback device from feedback unit with from filter unit, by copper bar or cable, be connected, describedly from feedback unit, parallel operation fibre optic plate slave station is housed, described parallel operation fibre optic plate slave station is equipped with optical fiber interface plate, and described optical fiber interface plate is provided with the second fiber optical transceiver communicating with described the first fiber optical transceiver.
In technique scheme, described the first fiber optical transceiver and described the second fiber optical transceiver are by CAN network or SCI serial communication.
Between main website in the utility model power rectifier feedback device and each slave station, can carry out that CAN communicates by letter and SCI serial communication; the information of exchange main frame and slave; thereby be conducive to main rectification feedback device, according to the data of adopting, process and reach effective control, and be conducive to each slave and by the actual working state that gathers self, carry out self monitoring and protection.
Accompanying drawing explanation
Fig. 1 is the main electrical scheme schematic diagram of six rectification feedback devices parallel operation;
Fig. 2 is the parallel operation optical fiber main website of six rectification feedback devices parallel operation and the wiring schematic diagram of parallel operation optical fiber slave station;
Fig. 3 is main frame and slave control board and parallel operation optical fiber main website and parallel operation optical fiber slave station wiring schematic diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the present embodiment illustrates the structure of the utility model power rectifier feedback device with the rectification feedback device of six same capabilities, wherein feedback unit as main frame, another five feedback units as slave, configure six filter units simultaneously, the three-phase input end of six filter units is connected with the electric power incoming line of incoming line cabinet by or copper bar cable is in parallel, all R join together, and S joins together, and T joins together.The three-phase outlet L1 of filter unit one, L2, the three-phase inlet wire L1 of L3 and feedback unit one, L2, L3 is connected one by one, the three-phase outlet L1 of filter unit two, L2, the three-phase inlet wire L1 of L3 and feedback unit two, L2, L3 is connected one by one, the three-phase outlet L1 of filter unit three, L2, the three-phase inlet wire L1 of L3 and feedback unit three, L2, L3 is connected one by one, the three-phase outlet L1 of filter unit four, L2, the three-phase inlet wire L1 of L3 and feedback unit four, L2, L3 is connected one by one, the three-phase outlet L1 of filter unit five, L2, the three-phase inlet wire L1 of L3 and feedback unit five, L2, L3 is connected one by one, the three-phase outlet L1 of filter unit six, L2, the three-phase inlet wire L1 of L3 and feedback unit six, L2, L3 is connected one by one.The output DC+ of all feedback units is in parallel, and DC-is in parallel as output.The scheme of whole parallel connection can effectively avoid producing between unit the problem of circulation and unit power division inequality.
On main frame, configure and on parallel operation optical fiber main website, every slave, have a parallel operation optical fiber slave station.Optical fiber interface plate and power panel are housed in main website, and power panel provides power supply for main website, on optical fiber interface plate and parallel operation optical fiber slave station all with single-chip microcomputer and fiber optical transceiver and the communication optical fiber transceiver of CAN interface and SCI interface.Optical fiber interface plate one in main website is connected with parallel operation optical fiber slave station one, optical fiber interface plate two is connected with parallel operation optical fiber slave station two, optical fiber interface plate three is connected with parallel operation optical fiber slave station three, and optical fiber interface plate four is connected with parallel operation optical fiber slave station four, and optical fiber interface plate five is connected with parallel operation optical fiber slave station five.Many when in parallel with capacity rectification feedback device, the structure of single rectification feedback device and hardware do not need to change, and only need on single rectification feedback device, reserve the position of installation parallel operation optical fiber main website and parallel operation optical fiber slave station, can realize self-defined main frame like this.Single rectification feedback device does not have light master station and follow station, and control board is connected by winding displacement with power supply, also needs the control board in separate unit feedback unit to be connected with the signal of power panel winding displacement and disconnect when multi-machine parallel connection, through fibre optic plate, carries out signal transfer.As Fig. 3, or control board is connected with parallel operation fibre optic plate main website slave station, or then receives power panel separately from parallel operation fibre optic plate main website slave station.Between main frame and slave, adopt single-chip microcomputer to carry out SCI serial communication, between parallel operation optical fiber slave station and the machine control board, adopt CAN to communicate by letter.
On every slave, dispose independent control board, this control board is not participated in control, but the data such as the voltage also by the machine of collecting, electric current, temperature are effectively monitored and protect the machine.While breaking down as slave; first separately protected and shutdown; again fault is fed back to main frame, main frame receives after fault and processes all slaves are shut down and reported an error, while effectively having avoided certain unit to go wrong protection not in time with the problem that affects whole system safety.
Claims (2)
1. a power rectifier feedback device, is characterized in that, comprising:
A main rectification feedback device, comprise main feedback unit and main filter unit, described main feedback unit is connected by copper bar or cable with main filter unit, parallel operation fibre optic plate main website is housed on described main feedback unit, described parallel operation fibre optic plate main website is equipped with optical fiber interface plate, and described optical fiber interface plate is provided with the first fiber optical transceiver; And
Many from rectification feedback device, every comprises that from rectification feedback device one from feedback unit and one from filter unit, every from rectification feedback device from feedback unit with from filter unit, by copper bar or cable, be connected, describedly from feedback unit, parallel operation fibre optic plate slave station is housed, described parallel operation fibre optic plate slave station is equipped with optical fiber interface plate, and described optical fiber interface plate is provided with the second fiber optical transceiver communicating with described the first fiber optical transceiver.
2. power rectifier feedback device according to claim 1, is characterized in that: described the first fiber optical transceiver and described the second fiber optical transceiver are by CAN network or SCI serial communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420242970.8U CN203933041U (en) | 2014-05-13 | 2014-05-13 | Power rectifier feedback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420242970.8U CN203933041U (en) | 2014-05-13 | 2014-05-13 | Power rectifier feedback device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203933041U true CN203933041U (en) | 2014-11-05 |
Family
ID=51828796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420242970.8U Expired - Lifetime CN203933041U (en) | 2014-05-13 | 2014-05-13 | Power rectifier feedback device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203933041U (en) |
-
2014
- 2014-05-13 CN CN201420242970.8U patent/CN203933041U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High-power rectified feedback device Effective date of registration: 20181019 Granted publication date: 20141105 Pledgee: Huaxia Bank Limited by Share Ltd Wuhan fruit lake sub branch Pledgor: Wuhan Guide Electric Co., Ltd. Registration number: 2018420000057 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210823 Granted publication date: 20141105 Pledgee: Huaxia Bank Limited by Share Ltd. Wuhan fruit lake sub branch Pledgor: WUHAN GUIDE ELECTRIC Co.,Ltd. Registration number: 2018420000057 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211103 Address after: 430223 workshop D, No. 6, ligongyuan Road, Science Park, Wuhan University of technology, East Lake Development Zone, Wuhan, Hubei Province Patentee after: Wuhan Gangdi Technology Co.,Ltd. Address before: No.6, ligongyuan Road, science and Technology Park, University of science and technology, Donghu New Technology Development Zone, Wuhan, Hubei 430223 Patentee before: WUHAN GUIDE ELECTRIC Co.,Ltd. |
|
| TR01 | Transfer of patent right |