CN105551230A - Single-fiber ring network communication topology structure for power units of high-voltage frequency converter - Google Patents
Single-fiber ring network communication topology structure for power units of high-voltage frequency converter Download PDFInfo
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- CN105551230A CN105551230A CN201610124344.2A CN201610124344A CN105551230A CN 105551230 A CN105551230 A CN 105551230A CN 201610124344 A CN201610124344 A CN 201610124344A CN 105551230 A CN105551230 A CN 105551230A
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- single fiber
- frequency converter
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/06—Non-electrical signal transmission systems, e.g. optical systems through light guides, e.g. optical fibres
Abstract
The invention provides a single-fiber ring network communication topology structure for power units of a high-voltage frequency converter and aims to solve the problems that the cost is increased, the reliability is reduced and the like due to increase of the number and the length of fibers of the power unit of the high-voltage frequency converter. A PWM (pulse width modulation) optical signal transmission end of a PWM panel of a control machine of the high-voltage frequency converter is connected with an optical signal receiving port of a single power unit of a U phase, a V phase and a W phase through a single fiber, other power units are connected with an adjacent power unit through single fibers, an optical signal transmission end of a rear tail end unit is connected with an optical signal receiving end of the PWM panel of the control machine, and by the aid of the topology structure, data of the power units are transmitted through the control system and transmitted to other power units through the units step by step. According to the topology structure, the communication fiber of each power unit is shortened, the equipment cost is reduced, the fiber communication reliability is improved, and the larger the number of the power units is, the more remarkable the topological effect is.
Description
Technical field
The present invention relates to a kind of high voltage transducer power unit single fiber looped network communication topological structure.
Background technology
Along with the widespread use of high voltage converter in Electric Machine Control, the progressive maturation of control technology of high voltage converter.Current high voltage converter all adopts optical fiber communication technology and frequency converter internal power unit to carry out data communication, currently used optical-fibre communications topological project is that in high voltage converter, each power cell and control system adopt independently optical fiber, but power cell quantity increases, number of fibers can become multiple to increase progressively, the increase of power cell quantity simultaneously causes the reliability of the increase of fiber lengths to optical-fibre communications to exert a certain influence again.
Summary of the invention
The present invention proposes a kind of high voltage transducer power unit single fiber looped network communication topological structure, be intended to solve that high voltage transducer power unit increase causes that number of fibers increases, optical fiber increases and cause the problems such as cost increase, reliability decrease.
To achieve these goals, the present invention is achieved through the following technical solutions:
A kind of high voltage transducer power unit single fiber looped network communication topological structure, Frequency Converter Control machine only needs a PWM plate, the transmitting-receiving port of PWM plate optical fiber communication modules only needs 3, it is characterized in that, the transmitting terminal of each optical fiber communication modules transmitting-receiving port is connected by single fiber with the power cell of in U, V, W phase respectively, and other power cells are connected by single fiber with previous power cell; Light signal transmit port and PWM plate light signal receiving port are adopted Fiber connection by last power cell, thus form single fiber looped network.
Described optical fiber communication modules comprises data acquisition port, control chip, unit drives, optical communication interface, and described optical communication interface comprises a receiving port and a transmit port, lays respectively at receiving end and the transmitting terminal of each power cell.
Described Frequency Converter Control machine comprises PWM plate, CPU board, analog board, digital version, communication board, a power panel.
Control chip in described optical fiber communication modules or Frequency Converter Control machine is CPLD, FPGA, DSP or single-chip microcomputer.
The power cell quantity of the every phase of described high voltage converter is more than or equal to 1.
Described topological structure can applying high voltage frequency converter equipment but be not limited thereto range of application.
Compared with prior art, the present invention has the following advantages:
1, simplify PWM Generator High Voltage Inverter Control System, controller only need adopt single fiber to be connected with a unit in U, V, W phase power cell, adopts Fiber connection without the need to controller and each unit.
2, because the data transmission between power cell is all issued from controller step by step by power cell, therefore, high voltage converter apparatus optical fiber consumption reduces greatly, and equipment cost reduces greatly.
3, because fiber lengths is only the distance between adjacent power unit, therefore the reduction of fiber lengths improves the reliability of optical-fibre communications, and equipment dependability is promoted thus further.
Accompanying drawing explanation
Fig. 1 is former high voltage transducer power unit optical-fibre communications topology diagram.
Fig. 2 is high voltage transducer power unit single fiber looped network communication topology diagram of the present invention.
Fig. 3 is high voltage transducer power unit single fiber looped network communication topology transmission schematic diagram of the present invention.
Fig. 4 is the structural drawing of power cell optical fiber communication modules.
Embodiment
Below in conjunction with accompanying drawing, technology contents of the present invention is described in further detail.
Fig. 1 is former high voltage transducer power unit optical-fibre communications topological structure, high voltage converter controller is made up of 3 PWM plates, CPU board, analog board, digiboard, power panels, each PWM plate and frequency converter one facies unit pass through Fiber connection, one phase power cell is formed to N number of power cell by 1, and frequency converter is by U, V, W three phase units; Each facies unit connects with corresponding PWM plate, and each unit has independently optical fiber.
See Fig. 2, Fig. 3, high voltage transducer power unit single fiber looped network communication topological structure and principle, Frequency Converter Control machine only needs a PWM plate, optical-fibre communications only needs 3, be connected by single fiber with the unit of in U, V, W phase respectively, other power cells are connected by single fiber with previous power cell, not with PWM plate separately through Fiber connection; The light signal transmitting terminal of last power cell adopts single fiber to be connected with the light signal receiving end of controller PWM, thus forms single fiber looped network.
Fig. 4 is power cell optical fiber communication modules structure, described optical fiber communication modules comprises data acquisition port, control chip, unit drives, optical communication interface, described optical communication interface comprises a receiving port and a transmit port, lays respectively at receiving end and the transmitting terminal of each power cell.
As shown in Figure 3, Frequency Converter Control machine only needs a PWM plate, only need by 3 optical fiber communication modules, be connected by single fiber with the power cell of in U, V, W phase respectively, two single fiber junctions of each power cell are provided with a light signal and receive (sending out) port, other power cells are connected by single fiber with previous power cell, no longer with PWM plate separately through Fiber connection; The light signal transmitting terminal of last power cell adopts single fiber to be connected with the light signal receiving end of controller PWM.
High voltage converter controller PWM plate adopts single fiber (1 optical fiber) to be connected by the light signal receiving port of the light signal transmitting terminal of PWM with the single power cell of U, V, W phase, other power cells and adjacent power unit adopt single fiber to be connected, the light signal of rear end power cell is connected by the light signal receiving end of transmitting terminal with the PWM plate of controller, to be issued and be issued to other power cells step by step by unit by these topological structure power cell data by control system.This topological structure shortens the communication optical fiber of each power cell, reduces equipment cost, improves optical-fibre communications reliability, and this topology effects more of power cell quantity are all the more obvious.
Described controller is the control system of high voltage converter, is mainly used to carry out data processing, IO controls, externally communication and employing optical-fibre communications control high voltage transducer power unit;
Described PWM plate is the ingredient of controller, is mainly used to realize optical-fibre communications between controller and power cell;
Described power cell is the drive unit of high voltage converter, and the steering order issued mainly through receiving controller realizes transformation, frequency conversion exports;
Described single fiber is the optical fiber of high voltage converter controller and unit communications, because therefore needs simple optical fiber is called single fiber.
As can be seen from Fig. 1-Fig. 4, compared with former topological structure, after adopting the communication of single fiber looped network, two PWM plates have been lacked in the simplification of Frequency Converter Control machine, on PWM plate fiber port simplify only need 3 right, power cell fiber port does not change, and optical fiber consumption reduces greatly, only needs the fiber lengths of the N number of unit in former topological structure.
Claims (6)
1. a high voltage transducer power unit single fiber looped network communication topological structure, Frequency Converter Control machine only needs a PWM plate, the transmitting-receiving port of PWM plate optical fiber communication modules only needs 3, it is characterized in that, the transmitting terminal of each optical fiber communication modules transmitting-receiving port is connected by single fiber with the power cell of in U, V, W phase respectively, and other power cells are connected by single fiber with previous power cell; Light signal transmit port and PWM plate light signal receiving port are adopted Fiber connection by last power cell, thus form single fiber looped network.
2. a kind of high voltage transducer power unit single fiber looped network communication topological structure according to claim 1, it is characterized in that, described optical fiber communication modules comprises data acquisition port, control chip, unit drives, optical communication interface, described optical communication interface comprises a receiving port and a transmit port, lays respectively at receiving end and the transmitting terminal of each power cell.
3. a kind of high voltage transducer power unit single fiber looped network communication topological structure according to claim 1, it is characterized in that, described Frequency Converter Control machine comprises PWM plate, CPU board, analog board, digital version, communication board, a power panel.
4. a kind of high voltage transducer power unit single fiber looped network communication topological structure according to Claims 2 or 3, is characterized in that, the control chip in described optical fiber communication modules or Frequency Converter Control machine is CPLD, FPGA, DSP or single-chip microcomputer.
5. a kind of high voltage transducer power unit single fiber looped network communication topological structure according to claim 1, it is characterized in that, the power cell quantity of the every phase of described high voltage converter is more than or equal to 1.
6. a kind of high voltage transducer power unit single fiber looped network communication topological structure according to claim 1, is characterized in that, described topological structure can applying high voltage frequency converter equipment but be not limited thereto range of application.
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| CN201610124344.2A CN105551230A (en) | 2016-03-04 | 2016-03-04 | Single-fiber ring network communication topology structure for power units of high-voltage frequency converter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707105A (en) * | 2017-10-26 | 2018-02-16 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Suitable for the communication network topology and method of soft straight modular multilevel converter valve |
| CN110460380A (en) * | 2019-08-30 | 2019-11-15 | 上海电气富士电机电气技术有限公司 | A kind of high voltage transducer power unit optical fiber ring network communication system |
| CN113224838A (en) * | 2021-03-30 | 2021-08-06 | 中国人民解放军海军工程大学 | Fifteen-phase large-capacity induction propulsion frequency converter control framework |
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| CN205405881U (en) * | 2016-03-04 | 2016-07-27 | 辽宁荣信电气传动技术有限责任公司 | Single optical fiber ring communication topological structure of high -voltage inverter power unit |
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| CN101431290A (en) * | 2008-12-15 | 2009-05-13 | 株洲变流技术国家工程研究中心有限公司 | Optical fiber connecting method for cascade type medium-high voltage frequency convertor |
| CN101478242A (en) * | 2009-01-15 | 2009-07-08 | 安徽长风电缆集团有限公司 | Pulse controlling and state monitoring device for H bridge cascade high voltage transformer power unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107707105A (en) * | 2017-10-26 | 2018-02-16 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Suitable for the communication network topology and method of soft straight modular multilevel converter valve |
| CN110460380A (en) * | 2019-08-30 | 2019-11-15 | 上海电气富士电机电气技术有限公司 | A kind of high voltage transducer power unit optical fiber ring network communication system |
| CN113224838A (en) * | 2021-03-30 | 2021-08-06 | 中国人民解放军海军工程大学 | Fifteen-phase large-capacity induction propulsion frequency converter control framework |
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Address after: 114051 Anshan high tech Zone, Liaoning province science and technology road, No. 108 Applicant 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 Applicant before: Liaoning Rongxin Electric Drive Technology Co., Ltd. |
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Effective date of registration: 20210607 Address after: 312000 Economic Development Zone, Shangyu District, Shaoxing City, Zhejiang Province Applicant after: WOLONG ELECTRIC GROUP Co.,Ltd. Applicant after: WOLONG ELECTRIC GROUP LIAONING RONGXIN ELECTRIC TRANSMISSION Co.,Ltd. Address before: 114051 No. 108, science and technology road, hi tech Zone, Liaoning, Anshan Applicant before: WOLONG ELECTRIC GROUP LIAONING RONGXIN ELECTRIC TRANSMISSION Co.,Ltd. |
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Application publication date: 20160504 |
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