CN204119103U - A kind of code device signal based on high voltage converter gathers topological structure - Google Patents
A kind of code device signal based on high voltage converter gathers topological structure Download PDFInfo
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- CN204119103U CN204119103U CN201420489106.8U CN201420489106U CN204119103U CN 204119103 U CN204119103 U CN 204119103U CN 201420489106 U CN201420489106 U CN 201420489106U CN 204119103 U CN204119103 U CN 204119103U
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Abstract
A kind of code device signal based on high voltage converter gathers topological structure, N number of encoder is fixedly installed on different N platform motor, for gathering the actual speed of every platform motor, signals collecting terminal provides power supply and capturing and coding device signal for encoder, frequency-changing control system is uploaded in optical-fibre communications mode, frequency conversion output system connects N platform motor via high voltage switchgear, can realize the speed regulating control of high voltage converter to each motor.The utility model can not only gather multichannel speed encoder signal to realize a Frequency Converter Control separate unit or multiple electric motors, and adopt the real-time optical fiber communication of high speed to replace signal cable to carry out transcoder signal, substantially increase signaling rate and interference rejection ability, adopt this topological structure to drastically increase the reliability of frequency-changing control system.
Description
Technical field
The utility model relates to a kind of code device signal based on high voltage converter and gathers topological structure.
Background technology
Along with country is to the great attention of energy-conserving and environment-protective industry, High-voltage Frequency Conversion Technology is rapidly developed, at the scene that high accuracy rotating speed controls, speed encoder is used widely, frequency converter needs to obtain motor actual speed and positional information by capturing and coding device signal, and the accuracy of code device signal collection is related to the quality of frequency conversion system control performance.
At present, in actual applications, on the one hand, industry spot often adopts shielded type cable by code device signal long-distance transmissions to frequency-changing control system, and severe electromagnetic interference drastically influence the Stability and dependability of code device signal transmission, on the other hand, some Special field needs to utilize a high voltage converter dragging multiple motor to carry out actual production, the interface that general frequency-changing control system is used for code device signal collection is limited, frequency converter producer needs to redesign and increases the particular interface of code device signal collection, not only extend frequency converter control system research and development, produce the cycle of application, also extra-pay is created.
In view of the above problems, propose a kind of code device signal based on high voltage converter and gather topological structure, multichannel speed encoder output signal can not only be gathered, to realize a Frequency Converter Control separate unit or multiple electric motors, and adopt the real-time optical fiber communication of high speed to replace signal cable to carry out transcoder signal, substantially increase transmission speed and interference rejection ability.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, proposes a kind of code device signal based on high voltage converter and gathers topological structure.This topological structure can obtain multiplex coding device output signal by multiple signal acquisition module, realize the function that a high voltage converter drags separate unit or multiple electric motors, utilize high speed serialization optical-fibre communications to carry out encoder data transmission, greatly improve signaling rate and reliability.
For achieving the above object, the utility model realizes by the following technical solutions:
A kind of code device signal based on high voltage converter gathers topological structure, comprise encoder, signals collecting terminal, high voltage converter, N number of encoder is fixed on N number of motor shaft, N number of encoder output connects N number of signals collecting terminal, N number of signals collecting terminal is connected with high voltage converter by optical fiber, described high voltage converter comprises frequency-changing control system and frequency conversion output system, described frequency-changing control system is provided with N number of expansion board, each expansion board is provided with several optical fiber transceiving interfaces, signals collecting terminal is connected with the optical fiber transceiving interface in expansion board, can be that one piece of expansion board connects multiple signals collecting terminal, also can be that multiple expansion board connects multiple signals collecting terminal, described frequency conversion output system connects motor by external high-voltage switch gear.
Described signals collecting terminal comprises signal collection modulation module, main control module, optical fiber communication modules, power module, the output of the external encoder of signal collection modulation module, inner connection main control module, power module, optical fiber communication modules outside connects the optical fiber transceiving interface of expansion board.
Compared with the existing technology, the beneficial effects of the utility model are:
A kind of code device signal based on high voltage converter gathers topological structure, multichannel speed encoder signal can not only be gathered to realize a Frequency Converter Control separate unit or multiple electric motors, and adopt the real-time optical fiber communication of high speed to replace signal cable to carry out transcoder signal, substantially increase signaling rate and interference rejection ability.
Accompanying drawing explanation
Fig. 1 is the system topology block diagram that a kind of code device signal based on high voltage converter of the utility model gathers topological structure.
Fig. 2 is signals collecting terminal structure figure.
Fig. 3 is frequency-changing control system structure chart.
Embodiment
As shown in Figure 1, a kind of code device signal based on high voltage converter gathers topological structure, comprise encoder, signals collecting terminal, high voltage converter, N (N > 1) individual encoder is fixed on N (N > 1) individual motor shaft, for gathering the actual speed of every platform motor, N (N > 1) individual encoder output connects N (N > 1) individual signals collecting terminal, N (N > 1) individual signals collecting terminal is connected with high voltage converter by optical fiber, high voltage converter comprises frequency-changing control system and frequency conversion output system, see Fig. 3, frequency-changing control system is provided with unit controls plate, master control borad, digiboard, analog board, communication board, power panel, backboard and N (N > 1) individual expansion board, each expansion board is provided with several optical fiber transceiving interfaces, and signals collecting terminal is connected with the optical fiber transceiving interface in expansion board, and in optical-fibre communications mode, signal is uploaded frequency-changing control system, can be that one piece of expansion board connects multiple signals collecting terminal, also can be that multiple expansion board connects multiple signals collecting terminal.Frequency conversion output system is external for connecting and the high-voltage switch gears such as the circuit breaker of switch motor, contactor.See Fig. 1, when Frequency Converter Control 1# motor, control system receives the code device signal that process 1# signals collecting terminal sends, and frequency conversion output system connects 1# motor by high voltage switchgear, realizes the speed regulating control of frequency converter to 1# motor; And when Frequency Converter Control N# motor, control system receives the code device signal that process N# signals collecting terminal sends, and frequency conversion output system connects N# motor via high voltage switchgear, realizes the speed regulating control of high voltage converter to N# motor.
As shown in Figure 2, signals collecting terminal mainly comprises signal collection modulation module, optical fiber communication modules, main control module, power module; The external encoder collection signal of signal acquisition module, the signal input part of main control module is connected through signal collection modulation circuit, the collection of main control module primary responsibility code device signal, logic control and Communications service, optical fiber communication modules realizes the data communication of signals collecting terminal and frequency-changing control system, power module provides power supply supply and the encoder working power of system components, simultaneously in order to adapt to the power demands of dissimilar encoder, the output of different voltage swing can be realized through diverter switch.During collection signal, first external encoder signal is via signal collection modulation module entering signal acquisition terminal, then in optical-fibre communications mode, encoder data is uploaded to frequency-changing control system after treatment, last frequency converter output system dragging motor running.
As shown in Figure 3, frequency-changing control system comprises unit controls plate, master control borad, digiboard, analog board, communication board, power panel, backboard and N (N > 1) individual expansion board; From the optical fiber transceiving interface of the code device signal access expansion board of signals collecting terminal, master control borad is passed to again by backboard, master control borad is responsible for the calculation process of code device signal, draws motor speed and positional information, can complete other algorithm simultaneously and calculate and logic control; Unit controls plate receives the instruction of master control borad and then controls the power cell of frequency converter, the output of detection and the amount of outputing that digiboard is responsible for intake controls, the collection of analog signal is responsible for by analog board, and outputting standard analog signal is for controlling display, communication board is responsible for the Communications service of control system, the interface that backboard is used between each functional cards connects and data communication, and has many board spare interface, and power panel provides the power supply of system components to supply.
Particularly point out, for those skilled in the art, all equivalences done for the content of this patent scope change and modify, all should as the technology category of patent.
Claims (2)
1. the code device signal based on high voltage converter gathers topological structure, it is characterized in that, comprise encoder, signals collecting terminal, high voltage converter, N number of encoder is fixed on N number of motor shaft, N number of encoder output connects N number of signals collecting terminal, N number of signals collecting terminal is connected with high voltage converter by optical fiber, described high voltage converter comprises frequency-changing control system and frequency conversion output system, described frequency-changing control system is provided with N number of expansion board, each expansion board is provided with several optical fiber transceiving interfaces, signals collecting terminal is connected with the optical fiber transceiving interface in expansion board, can be that one piece of expansion board connects multiple signals collecting terminal, also can be that multiple expansion board connects multiple signals collecting terminal, described frequency conversion output system connects motor by external high-voltage switch gear.
2. a kind of code device signal based on high voltage converter according to claim 1 gathers topological structure, it is characterized in that, described signals collecting terminal comprises signal collection modulation module, main control module, optical fiber communication modules, power module, the output of the external encoder of signal collection modulation module, inner connection main control module, power module, optical fiber communication modules outside connects the optical fiber transceiving interface of expansion board.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420489106.8U CN204119103U (en) | 2014-08-28 | 2014-08-28 | A kind of code device signal based on high voltage converter gathers topological structure |
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| CN201420489106.8U CN204119103U (en) | 2014-08-28 | 2014-08-28 | A kind of code device signal based on high voltage converter gathers topological structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167974A (en) * | 2014-08-28 | 2014-11-26 | 辽宁荣信电气传动技术有限责任公司 | Encoder signal acquisition topological structure based on high-voltage inverters |
| CN105429442A (en) * | 2015-12-19 | 2016-03-23 | 蒋小春 | Optical fiber communication method and system for high-power converter |
-
2014
- 2014-08-28 CN CN201420489106.8U patent/CN204119103U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167974A (en) * | 2014-08-28 | 2014-11-26 | 辽宁荣信电气传动技术有限责任公司 | Encoder signal acquisition topological structure based on high-voltage inverters |
| CN105429442A (en) * | 2015-12-19 | 2016-03-23 | 蒋小春 | Optical fiber communication method and system for high-power converter |
| CN105429442B (en) * | 2015-12-19 | 2018-01-30 | 四川中大华瑞能源技术有限公司 | The optical fibre communication method and system of high-power current converting device |
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| C14 | Grant of patent or utility model | ||
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| 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. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210331 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. |
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