CN205081669U - Parallelly connected configuration topological structure of n+2 based on high -voltage inverter - Google Patents
Parallelly connected configuration topological structure of n+2 based on high -voltage inverter Download PDFInfo
- Publication number
- CN205081669U CN205081669U CN201520817124.9U CN201520817124U CN205081669U CN 205081669 U CN205081669 U CN 205081669U CN 201520817124 U CN201520817124 U CN 201520817124U CN 205081669 U CN205081669 U CN 205081669U
- Authority
- CN
- China
- Prior art keywords
- high voltage
- voltage converter
- parallel
- host computer
- communication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model relates to a parallelly connected configuration topological structure of n+2 based on high -voltage inverter, because high -power frequency conversion itself is expensive, a plurality of miniwatt frequency conversions are connected in parallel and have progressively been begun to occupy original market of partly high -power frequency conversion. But how disposing the miniwatt frequency conversion and just reaching and not only practice thrift cost but also stable, safe, reliable is the problem that perplexs numerous converter producers always. The utility model provides a based on the parallelly connected extension technique of high -voltage inverter's n+2, on original n platform high -voltage inverter parallel operation's basis, increased by 2 cold standby high -voltage inverter, in case there is 1 trouble among the n platform high -voltage inverter, then switch 1 work among the high -voltage inverter of 2 cold standbies, overhaul the trouble frequency conversion, if damage 1 high -voltage inverter once more at the maintenance in -process, then switch other 1 cold standby high -voltage frequency converters and carry out work, the frequency conversion is overhauld to the trouble. This kind of provisioning technology is guaranteeing under the low -cost circumstances, the assurance of very big limit equipment reliability of operation and continuous operation ability.
Description
Technical field
The utility model relates to a kind of n+2 based on high voltage converter configuring technical in parallel.
Background technology
How heavy-duty motor drives, and is a stubborn problem concerning high voltage converter producer always.Traditional solution is supporting high-power high voltage frequency converter, but high-power high voltage frequency converter cost is too high, and if consider that reliability is done meeting for subsequent use and amplified its cost further.The parallel connection of multiple stage low-power high-voltage frequency converter is the excellent fix driving heavy-duty motor, but the allocation problem in parallel of high voltage converter has also perplexed numerous frequency converter producer.
Summary of the invention
The utility model is intended to the problem how configured when solving high voltage converter parallel drive.Adopt the configuration mode of n+2 frequency converter parallel connection, namely adopt n platform frequency converter to drive, the mode of 2 frequency converter cold reserves simultaneously.When 1 frequency converter damages, standby variable frequency device can being cut fast, when not affecting operation, infringement frequency converter being overhauled; If have device damage again between turn(a)round, another cold reserve equipment can be cut.Not only cost is low for this kind of configuration mode, and fail safe, and reliability is high, and equipment continuous service ability is strong.
To achieve these goals, the utility model is achieved through the following technical solutions:
N+2 based on a high voltage converter configured topology structure in parallel, is characterized in that, on the basis of original n platform high voltage converter parallel running, increases by 2 cold standby high voltage converters, is connected in parallel with original n platform high voltage converter; Taking host computer as main frame, is from machine with the controller of every platform high voltage converter, carries out control command transmission and state feedback by the communication of every platform frequency converter and host computer; Described Frequency Converter Control machine comprises master control borad, communication board, power panel, backboard, and master control borad is used for processing core control algolithm; Communication board is the communication interface of controller and host computer; The power supply that power panel needs for providing each board, backboard is for the electricity between each board and transfer of data.
The communications protocol of described every platform frequency converter and host computer adopts MODBUS communication, or PROFIBUS communication, or CAN communication.
Described host computer is the master control system of the n+2 parallel connection configuration of high voltage converter, and what be used for controlling fault high voltage converter cuts out the incision with good frequency converter.
Described host computer can substitute with PLC or DCS programmable logic controller (PLC).
Compared with prior art, advantage of the present utility model is yes:
1. given up high-power high voltage transducer drive scheme, cost reduces greatly.
2. the communication between host computer and Frequency Converter Control machine is flexible, strong adaptability, makes high voltage converter be easier to adapt to on-the-spot original system and controls.
3. high voltage converter employing n+2 parallel connection configuration, damage when no matter being normal use switches, or damage switching during separate unit maintenance all takes into full account, the continuous serviceability of high voltage converter is strong, and stability and the reliability of operation are high.
Accompanying drawing explanation
Fig. 1 is host computer functional schematic.
Fig. 2 is Frequency Converter Control machine functional schematic.
The n+2 configured topology figure in parallel of Fig. 3 high voltage converter.
The 3+2 configured topology figure in parallel of Fig. 4 high voltage converter.
Embodiment
Below in conjunction with accompanying drawing, technology contents of the present utility model is described in further detail.
N+2 based on a high voltage converter configuring technical in parallel, take host computer as main frame, with the control seat in the plane of every platform high voltage converter from machine, carries out control command transmission and state feedback by communication.Normal condition, the state that ipc monitor high voltage converter controller is uploaded, n platform high voltage converter simultaneously drive motors runs; If the high voltage converter that n platform runs has 1 shutdown of breaking down, the controller of fault-signal platform high voltage converter thus uploads to host computer, host computer falls this frequency converter immediately and cuts out, incision order is sent to 1 cold reserve high voltage converter controller simultaneously, after cold reserve high voltage converter controller receives incision order, incision, makes system be restored to the drive motors operation simultaneously of n platform high voltage converter, damages frequency converter and start to overhaul; If between turn(a)round, n platform high voltage converter breaks down shutdown again, then host computer cuts out fault high voltage converter, the incision of another cold standby high voltage converter, ensure n platform high voltage converter simultaneously drive motors run, damage equipment is overhauled simultaneously.
Described high voltage converter is controllable voltage source type equipment, for the load of drive motors class, carries out speed governing operation, is used for energy-conservation, speed governing and soft start field.
As shown in Figure 1, host computer comprises communication module and power module.The communication of described host computer and high voltage converter controller is the communication that can realize host computer and the data interaction of high voltage converter controller.Host computer be high voltage converter n+2 parallel connection configuration master control system, major control fault high voltage converter cut out the incision with good frequency converter, ensure motor have n platform high-pressure frequency-conversion to drive always simultaneously.
As shown in Figure 2, the controller of high voltage converter, is the master controller of separate unit high voltage converter, comprises master control borad, communication board, power panel, backboard.Master control borad process core control algolithm; Communication board is used for and host computer carries out exchanges data; The power supply that power panel needs for providing each board, backboard is for the electricity between each board and transfer of data.
Fig. 4, specific embodiment: a kind of n+2 based on high voltage converter configuring technical in parallel, with 3+2 examples of configurations in parallel.Take host computer as main frame, be from machine with the controller of every platform high voltage converter, carry out control command transmission and state feedback by MODBUS communication.Normal condition, the state that ipc monitor high voltage converter controller is uploaded, 3 high voltage converter drive motors operations simultaneously; If 3 high voltage converters run have 1 shutdown of breaking down, the controller of fault-signal platform high voltage converter thus uploads to host computer, host computer falls this frequency converter immediately and cuts out, incision order is sent to 1 cold reserve high voltage converter controller simultaneously, after cold reserve high voltage converter controller receives incision order, incision, makes system be restored to the drive motors operation simultaneously of 3 high voltage converters, damages frequency converter and start to overhaul; If between turn(a)round, 3 high voltage converters break down shutdown again, then host computer cuts out fault high voltage converter, the incision of another cold standby high voltage converter, ensure the drive motors operation simultaneously of 3 high voltage converters, overhaul simultaneously to damage equipment.
Described high voltage converter is controllable voltage source type equipment, for the load of drive motors class, carries out speed governing operation, is used for energy-conservation, speed governing and soft start field.
Fig. 1, described host computer, be high voltage converter 3+2 parallel connection configuration master control system, major control fault high voltage converter cut out the incision with good frequency converter, ensure motor have 3 high-pressure frequency-conversions to drive always simultaneously.
Fig. 2, the controller of described high voltage converter, is the master controller of separate unit high voltage converter, comprises master control borad, communication board, power panel, backboard.Master control borad process core control algolithm; Communication board is used for and host computer carries out exchanges data; The power supply that power panel needs for providing each board, backboard is for the electricity between each board and transfer of data.
The MODBUS communication of described host computer and high voltage converter controller is the communication that can realize host computer and the data interaction of high voltage converter controller.
A kind of 3+2 based on high voltage converter of the present embodiment configuring technical in parallel is configured to example with 3+2 parallel connection, introduces high voltage converter n+2 configuration application in practice.The n+2 promoted topological arrangement in parallel as shown in Figure 3.
A kind of 3+2 based on high voltage converter of the present embodiment configuring technical medium-high voltage frequency converter in parallel comprises and is not limited to multi-level high-voltage frequency transformer.
Communication in a kind of 3+2 based on high voltage converter of the present embodiment configuring technical in parallel between host computer and high voltage converter controller comprises and is not limited to MODBUS communication, also comprises the PROFIBUS communication that can realize this function, other communication modes such as CAN communication.
Claims (4)
1., based on a n+2 configured topology structure in parallel for high voltage converter, it is characterized in that, on the basis of original n platform high voltage converter parallel running, increase by 2 cold standby high voltage converters, be connected in parallel with original n platform high voltage converter; Taking host computer as main frame, is from machine with the controller of every platform high voltage converter, carries out control command transmission and state feedback by the communication of every platform frequency converter and host computer; Described Frequency Converter Control machine comprises master control borad, communication board, power panel, backboard, and master control borad is used for processing core control algolithm; Communication board is the communication interface of controller and host computer; The power supply that power panel needs for providing each board, backboard is for the electricity between each board and transfer of data.
2. a kind of n+2 based on high voltage converter according to claim 1 configured topology structure in parallel, it is characterized in that, the communications protocol of described every platform frequency converter and host computer adopts MODBUS communication, or PROFIBUS communication, or CAN communication.
3. a kind of n+2 based on high voltage converter according to claim 1 configured topology structure in parallel, it is characterized in that, described host computer is the master control system of the n+2 parallel connection configuration of high voltage converter, and what be used for controlling fault high voltage converter cuts out the incision with good frequency converter.
4. a kind of n+2 based on high voltage converter according to claim 3 configured topology structure in parallel, is characterized in that, described host computer can substitute with PLC or DCS programmable logic controller (PLC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520817124.9U CN205081669U (en) | 2015-10-21 | 2015-10-21 | Parallelly connected configuration topological structure of n+2 based on high -voltage inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520817124.9U CN205081669U (en) | 2015-10-21 | 2015-10-21 | Parallelly connected configuration topological structure of n+2 based on high -voltage inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205081669U true CN205081669U (en) | 2016-03-09 |
Family
ID=55434043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520817124.9U Active CN205081669U (en) | 2015-10-21 | 2015-10-21 | Parallelly connected configuration topological structure of n+2 based on high -voltage inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205081669U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565842A (en) * | 2017-07-28 | 2018-01-09 | 安徽大学 | A kind of efficiently redundant parallel pure electric automobile frequency converter and its control method |
| CN109818486A (en) * | 2017-11-20 | 2019-05-28 | 维谛技术有限公司 | The hot redundancy control method of frequency converter and redundancy frequency-converter device |
| WO2022116404A1 (en) * | 2020-12-02 | 2022-06-09 | 南京创昇智能科技有限公司 | High-voltage frequency converter control system and method |
-
2015
- 2015-10-21 CN CN201520817124.9U patent/CN205081669U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565842A (en) * | 2017-07-28 | 2018-01-09 | 安徽大学 | A kind of efficiently redundant parallel pure electric automobile frequency converter and its control method |
| CN107565842B (en) * | 2017-07-28 | 2020-03-17 | 安徽大学 | Control method of high-efficiency redundant parallel pure electric vehicle frequency converter |
| CN109818486A (en) * | 2017-11-20 | 2019-05-28 | 维谛技术有限公司 | The hot redundancy control method of frequency converter and redundancy frequency-converter device |
| CN109818486B (en) * | 2017-11-20 | 2020-09-29 | 维谛技术有限公司 | Frequency converter thermal redundancy control method and redundancy frequency converter device |
| WO2022116404A1 (en) * | 2020-12-02 | 2022-06-09 | 南京创昇智能科技有限公司 | High-voltage frequency converter control system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101624969B (en) | Redundancy control system and redundancy control method for wind power generation propeller change | |
| US20170141717A1 (en) | Parallel modular converter architecture | |
| CN104129493B (en) | A kind of marine electric power propulsion redundancy control method | |
| CN205081669U (en) | Parallelly connected configuration topological structure of n+2 based on high -voltage inverter | |
| CN201953562U (en) | Variable propeller pitch control system of wind generator | |
| CN204216804U (en) | The distributed collecting and distributing frequency conversion control energy saving apparatus of cluster well oil extractor | |
| CN102817778A (en) | Method and device for preventing PLC (programmable logic controller) control system of fan from crashing | |
| CN105244906B (en) | Standby state control method, device and system for wind driven generator converter | |
| CN110943652A (en) | Multi-motor cluster system drive control device, method and system | |
| CN104184390A (en) | Standby method and standby system for inverters of crane | |
| CN201842578U (en) | Electrical control system of full-rotating barge derrick | |
| CN101714776B (en) | 10KV station electric control system of convertor station adopting selecting 2 from 3 logic | |
| CN204967675U (en) | Converter multimachine synchro control device | |
| CN214412618U (en) | Frequency converter topological structure with complete machine redundancy function | |
| CN204696788U (en) | A kind of large-size thermal power plant high-voltage Auxiliary power supply three power supply automatic switchover wiring construction | |
| CN102255488A (en) | Frequency converter stopping device | |
| CN102332852A (en) | Variable-frequency speed regulation control system for starting high-power pumped storage unit | |
| CN107493040B (en) | Control circuit of frequency conversion cabinet | |
| CN205092799U (en) | Be suitable for high -voltage inverter's two -node cluster hot backup auto -change over device and two -node cluster hot backup system | |
| CN104065323A (en) | High-voltage frequency converters and control system and method thereof | |
| CN111614246A (en) | Rectifier, drive circuit and system with safe direct current output stop function | |
| CN205078486U (en) | High -voltage inverter cooling fan energy -conservation and increase of service life control topological structure | |
| CN211456791U (en) | Quick switch cabinet of single machine electrical equipment of large-scale unit | |
| CN206992781U (en) | A kind of redundance type variable-frequency power sources control system suitable for bank electricity system | |
| CN106406213A (en) | Frequency converter multi-machine master-slave control system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 114051 Anshan high tech Zone, Liaoning province science and technology road, No. 108 Patentee after: Wolong electric group Liaoning Rongxin electric drive Co., Ltd. Address before: 114051 Anshan high tech Zone, Liaoning province science and technology road, No. 108 Patentee before: Liaoning Rongxin Electric Drive Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210508 Address after: 312000 Economic Development Zone, Shangyu District, Shaoxing City, Zhejiang Province Patentee after: WOLONG ELECTRIC GROUP Co.,Ltd. Patentee after: WOLONG ELECTRIC GROUP LIAONING RONGXIN ELECTRIC TRANSMISSION Co.,Ltd. Address before: 114051 No. 108, science and technology road, hi tech Zone, Liaoning, Anshan Patentee before: WOLONG ELECTRIC GROUP LIAONING RONGXIN ELECTRIC TRANSMISSION Co.,Ltd. |