CN205070774U - Two optic fibre looped netowrk communication topological structure of high -voltage inverter power unit - Google Patents
Two optic fibre looped netowrk communication topological structure of high -voltage inverter power unit Download PDFInfo
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- CN205070774U CN205070774U CN201520817957.5U CN201520817957U CN205070774U CN 205070774 U CN205070774 U CN 205070774U CN 201520817957 U CN201520817957 U CN 201520817957U CN 205070774 U CN205070774 U CN 205070774U
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Abstract
The utility model provides a two optic fibre looped netowrk communication topological structure of high -voltage inverter power unit aims at solving the high -voltage inverter power unit increase and leads to the fact the increase of optic fibre quantity and length to lead to the fact cost -push, reliability decline scheduling problem. The high -voltage inverter controller only need a PWM board adopt two optic fibre only with U, V, W mutually single power unit link to each other, other power unit and adjacent power unit adopt two optic fibre to link to each other, are issued by control system and issue other power unit step by step through the unit through these topological structure power unit data. This topological structure has shortened every power unit's communication optic fibre, has reduced equipment cost, has improved the optical fiber communication reliability, and more these the topology effects of power unit quantity are all the more obvious.
Description
Technical field
The utility model relates to a kind of high voltage transducer power unit dual fiber ring Netcom news topological structure.
Background technology
Along with the extensive 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 utility model proposes a kind of high voltage transducer power unit dual fiber ring Netcom news 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 utility model is achieved through the following technical solutions:
A kind of high voltage transducer power unit dual fiber ring Netcom news topological structure, it is characterized in that, Frequency Converter Control machine only needs a PWM plate, optical-fibre communications port only needs 3, a PWM plate is connected by two optical fiber with the unit of in U, V, W phase respectively, other power cells and previous power cell are by two Fiber connection, the receiving terminal of optical-fibre communications port is connected with transmitting terminal by last power cell, by the connecting fiber of a upper power cell, signal transmission is returned PWM plate, form dual fiber ring net.
Described Frequency Converter Control machine comprises PWM plate, CPU board, analog board, digital version, communication board, power panel.
Control chip in described Frequency Converter Control machine and power cell control module can be, but not limited to CPLD, FPGA, DSP, and single-chip microcomputer.
Described power cell adopts the mode of cascade to connect.
Described optical fiber communication modules is made up of control chip, optical communication interface, unit drives, data acquisition, there are two optical-fibre communications transceiver interface, be used for realizing the data communication of power cell and previous stage unit or controller and the data communication of rear stage power cell.
Compared with the existing technology, the utility model has the following advantages:
1, simplify PWM Generator High Voltage Inverter Control System, controller only need adopt two-wire Fiber connection with a unit in U, V, W phase power cell, adopts Fiber connection without the need to controller and each unit;
2, because the transfer of data 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 former high voltage transducer power unit optical-fibre communications topological structure.
Fig. 2 high voltage transducer power unit dual fiber ring Netcom news topological structure.
Fig. 3 power cell optical-fibre communications topological structure.
Embodiment
Below in conjunction with accompanying drawing, technology contents of the present utility model 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;
Fig. 2 is high voltage transducer power unit dual fiber ring Netcom news topological structure, Frequency Converter Control machine only needs a PWM plate, optical-fibre communications only needs 3, be connected by two optical fiber with the unit of in U, V, W phase respectively, other power cells and previous power cell by two Fiber connection, no longer with PWM plate separately through Fiber connection; Fiber port is received and dispatched short circuit by last power cell, thus forms dual fiber ring net.As seen from the figure, compared with former topological structure, after adopting dual fiber ring Netcom news, 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 part increases by 1 pair of optical fiber port, but optical fiber consumption reduces greatly, only needs the fiber lengths of the N number of unit in former topological structure.
Described Frequency Converter Control machine comprises PWM plate, CPU board, analog board, digital version, communication board, power panel.High voltage converter controller PWM plate adopts two optical fiber (two optical fiber) to be only connected with the single power cell of U, V, W phase, other power cells and adjacent power unit adopt two-wire optical fiber to be connected, and 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; 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 part of controller, is mainly used to realize optical-fibre communications between controller and power cell; The power cell stated is the drive unit of high voltage converter, and the control command issued mainly through receiving controller realizes transformation, frequency conversion exports; Described two optical fiber are the optical fiber of high voltage converter controller and unit communications, because therefore needs two optical fiber are called two optical fiber.
Fig. 3 is power cell optical fiber communication modules topological structure, be made up of parts such as control chip, optical communication interface, unit drives, data acquisitions, there are two optical-fibre communications transceiver interface, be used for realizing the data communication of power cell and previous stage unit or controller and the data communication of rear stage power cell.
Claims (5)
1. a high voltage transducer power unit dual fiber ring Netcom news topological structure, comprise Frequency Converter Control machine, optical fiber communication modules, optical fiber, power cell, it is characterized in that, Frequency Converter Control machine only needs a PWM plate, its optical-fibre communications port only needs 3, PWM plate respectively with U, V, a unit in W phase is connected by two optical fiber, other power cells and previous power cell are by two Fiber connection, the receiving terminal of optical-fibre communications port is connected with transmitting terminal by last power cell, by the connecting fiber of a upper power cell, signal transmission is returned PWM plate, form dual fiber ring net.
2. a kind of high voltage transducer power unit dual fiber ring Netcom according to claim 1 news topological structure, it is characterized in that, described Frequency Converter Control machine comprises PWM plate, CPU board, analog board, digital version, communication board, power panel.
3. a kind of high voltage transducer power unit dual fiber ring Netcom according to claim 1 news topological structure, is characterized in that, the control chip in described Frequency Converter Control machine and power cell control module is CPLD, FPGA, DSP or single-chip microcomputer.
4. a kind of high voltage transducer power unit dual fiber ring Netcom according to claim 1 news topological structure, it is characterized in that, described power cell adopts the mode of cascade to connect.
5. a kind of high voltage transducer power unit dual fiber ring Netcom according to claim 1 news topological structure, it is characterized in that, described optical fiber communication modules is made up of control chip, optical communication interface, unit drives, data acquisition, there are two optical-fibre communications transceiver interface, be used for realizing the data communication of power cell and previous stage unit or controller and the data communication of rear stage power cell.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520817957.5U CN205070774U (en) | 2015-10-21 | 2015-10-21 | Two optic fibre looped netowrk communication topological structure of high -voltage inverter power unit |
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| CN201520817957.5U CN205070774U (en) | 2015-10-21 | 2015-10-21 | Two optic fibre looped netowrk communication topological structure of high -voltage inverter power unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551230A (en) * | 2016-03-04 | 2016-05-04 | 辽宁荣信电气传动技术有限责任公司 | Single-fiber ring network communication topology structure for power units of high-voltage frequency converter |
| 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 |
| CN109842441A (en) * | 2019-01-31 | 2019-06-04 | 大禹电气科技股份有限公司 | A kind of high-voltage frequency converter optical signal loop test method and system |
-
2015
- 2015-10-21 CN CN201520817957.5U patent/CN205070774U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551230A (en) * | 2016-03-04 | 2016-05-04 | 辽宁荣信电气传动技术有限责任公司 | Single-fiber ring network communication topology structure for power units of high-voltage frequency converter |
| 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 |
| CN109842441A (en) * | 2019-01-31 | 2019-06-04 | 大禹电气科技股份有限公司 | A kind of high-voltage frequency converter optical signal loop test method and system |
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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. |
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Effective date of registration: 20210420 Address after: 312000 Shangyu Economic Development Zone, 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. |