CN202383211U - Control system used for frequency converter whole machine tester - Google Patents
Control system used for frequency converter whole machine tester Download PDFInfo
- Publication number
- CN202383211U CN202383211U CN2011204185282U CN201120418528U CN202383211U CN 202383211 U CN202383211 U CN 202383211U CN 2011204185282 U CN2011204185282 U CN 2011204185282U CN 201120418528 U CN201120418528 U CN 201120418528U CN 202383211 U CN202383211 U CN 202383211U
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- frequency converter
- control chip
- control system
- driver
- iic bus
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Abstract
The utility model discloses a control system used for a frequency converter whole machine tester, comprising a master control chip, a data acquisition and conversion module used for acquiring and converting tested current signals and/or voltage signals, an IIC (Inter-Integrated Circuit) bus driver used for driving an IIC bus interface, and a UART serial port driver used for driving a UART (Universal Asynchronous Receiver/Transmitter) serial port; wherein a watchdog module used for monitoring an operating state of the master control chip in real time is built in the master control chip; the data acquisition and conversion module, the IIC bus driver and the UART serial port driver are all connected with the master control chip; and the IIC bus interface is connected with a memory. The control system used for the frequency converter whole machine tester in the utility model can perform high-efficiency acquisition and accurate calculation processing for the tested data through cooperation between the master control chip and peripheral equipments, thereby realizing high-efficiency and high-accuracy test control for a frequency converter.
Description
Technical field
The utility model relates to test control field, relates more specifically to a kind of control system that is used for frequency converter system test appearance.
Background technology
Along with the continuous development of industry and improving constantly of human goods and materials requirement, requiring of production technology is increasingly high, and supporting electrical equipment speed governing requires also increasingly high.Motor becomes leading products in the electrical equipment transmission, but because the inductance characteristic of motor, the reactive power that is produced can be wasted electric energy in a large number, does not meet the requirement of environmental protection and energy saving.In view of the above problems, frequency converter becomes the auxiliary products of motor, when satisfying technology speed governing requirement, also to solve the reactive power loss problem of motor.
Frequency converter commonly used mainly is made up of IGBT, driving circuit and mainboard, and it carries out rectifying and wave-filtering with alternating current becomes direct current and be adjusted to alternating current through inversion again.In the development process of frequency converter, or before the dispatching from the factory of frequency converter, all need carry out performance test, judge whether its performance meets the demands it.In order to address this problem, the frequency converter system test appearance that can test the frequency converter performance has appearred on the market a lot, and wherein the motherboard circuit of tester is the principal element of influence test effect.Based on this, the inventor designs a kind of control system that can be used for frequency converter system test appearance to realize the frequency converter test of high-level efficiency and pin-point accuracy.
The utility model content
The purpose of the utility model provides a kind of control system that can be used for frequency converter system test appearance to realize the frequency converter test control of high-level efficiency and pin-point accuracy.
To achieve these goals; The UART serial driver that the control system that is used for frequency converter system test appearance that the utility model provides comprises main control chip, is used to gather and change the data acquisition modular converter of tested current signal and/or voltage signal, is used to drive the iic bus driver of iic bus interface and is used to drive the UART serial ports; Said main control chip is built-in with and is used for watchdog module that the running status of said main control chip is monitored in real time; Said data acquisition modular converter, iic bus driver and UART serial driver all link to each other with said main control chip, and said iic bus interface is connected with storer.
In the further scheme of the utility model, said UART serial ports comprises RS485 serial ports and RS232 serial ports, and said UART serial driver is connected with interface convertor to realize the switching of said RS485 serial ports and RS232 serial ports, selects for user flexibility.
In the further scheme of the utility model, said data acquisition modular converter comprises the A/D converter of 10 passages, and each passage of said A/D converter is equipped with the RC filtering circuit to improve the antijamming capability of passage.
In the further scheme of the utility model, said main control chip adopts STM32F103C8T6 type ARM chip to improve control efficiency and computing power.
In the further scheme of the utility model, the usefulness of the said storer preservation of various parameters when doing system's power down that is AT24C08 type eeprom memory.
In the further scheme of the utility model, said iic bus driver adopts the SN65HVD105D cake core, and said UART serial driver adopts the antijamming capability of SN75176 cake core with further raising system.
The utility model compared with prior art; Its beneficial effect is: the control system in the utility model comes control data to gather peripheral circuits such as modular converter, iic bus driver and UART serial driver and testing circuit, tested frequency converter through main control chip to communicate; And then measured data gathered and accurate calculating and processing efficiently, thereby realize frequency converter is carried out the test control of high-level efficiency and pin-point accuracy.
Through following description and combine accompanying drawing, it is more clear that the utility model will become, and these accompanying drawings are used to explain the embodiment of the utility model.
Description of drawings
Fig. 1 is used for the schematic block circuit diagram of control system one embodiment of frequency converter system test appearance for the utility model.
Each description of reference numerals is following among the figure:
Watchdog module 111 data acquisition modular converters 12
A/D converter 121 RC wave filters 122
Iic bus driver 13 iic bus interfaces 131
Storer 132 UART serial driver 14
UART serial ports 141 RS485 serial ports 142
RS232 serial ports 143 interface convertors 15
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the embodiment is carried out clear, intactly description, similar assembly label is represented similar assembly in the accompanying drawing.Obviously, below only be the utility model part embodiment with the embodiment that describes, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
At first please with reference to Fig. 1; In the present embodiment; The control system 10 that is used for frequency converter system test appearance that the utility model provided comprises main control chip 11 and the data acquisition modular converter 12, iic bus driver 13 and the UART serial driver 14 that link to each other with said main control chip 11; Preferably, said main control chip 11 adopts STM32F103C8T6 type ARM chip to improve control efficiency and computing power.In order to ensure the stability of said main control chip 11 work, said main control chip 11 is built-in with watchdog module 111, and said watchdog module 111 is used for the running status of said main control chip 11 is monitored in real time.
In the present embodiment; Said data acquisition modular converter 12 is used to gather and change tested current signal and/or voltage signal; Preferably; Said data acquisition modular converter 12 comprises the A/D converter 121 of 10 passages, and each passage of said A/D converter is equipped with RC filtering circuit 122 to improve the antijamming capability of passage.
Continuation is with reference to Fig. 1, and the iic bus driver 13 in the present embodiment adopts the SN65HVD105D cake core, is used to drive iic bus interface 131, and said iic bus interface 131 is connected with storer 132.Preferably, the usefulness of the said storer preservation of various parameters when doing system's power down that is AT24C08 type eeprom memory.
Said UART serial driver 14 adopts the SN75176 cake core, is used to drive UART serial ports 141 and communicates with the testing software with computing machine.In this preferred embodiment; Said UART serial ports 141 comprises RS485 serial ports 142 and RS232 serial ports 143; Said UART serial driver 14 is connected with interface convertor 15 to realize the switching of said RS485 serial ports 142 and RS232 serial ports 143, selects for user flexibility.
As stated; Control system in the utility model comes control data to gather peripheral circuits such as modular converter, iic bus driver and UART serial driver and testing circuit, tested frequency converter through main control chip 11 to communicate; And then measured data gathered and accurate calculating and processing efficiently, thereby realize frequency converter is carried out the test control of high-level efficiency and pin-point accuracy.
More than combine most preferred embodiment that the utility model is described, but the utility model is not limited to the embodiment of above announcement, and should contains various modification, equivalent combinations of carrying out according to the essence of the utility model.
Claims (7)
1. control system that is used for frequency converter system test appearance; It is characterized in that: comprise main control chip, be used to gather and change the data acquisition modular converter of tested current signal and/or voltage signal, the UART serial driver that is used to drive the iic bus driver of iic bus interface and is used to drive the UART serial ports; Said main control chip is built-in with and is used for watchdog module that the running status of said main control chip is monitored in real time; Said data acquisition modular converter, iic bus driver and UART serial driver all link to each other with said main control chip, and said iic bus interface is connected with storer.
2. the control system that is used for frequency converter system test appearance as claimed in claim 1; It is characterized in that: said UART serial ports comprises RS485 serial ports and RS232 serial ports, and said UART serial driver is connected with interface convertor to realize the switching of said RS485 serial ports and RS232 serial ports.
3. the control system that is used for frequency converter system test appearance as claimed in claim 1 is characterized in that: said data acquisition modular converter comprises the A/D converter of 10 passages, and each passage of said A/D converter is equipped with the RC filtering circuit.
4. the control system that is used for frequency converter system test appearance as claimed in claim 1 is characterized in that: said main control chip adopts STM32F103C8T6 type ARM chip.
5. the control system that is used for frequency converter system test appearance as claimed in claim 1 is characterized in that: said storer adopts AT24C08 type eeprom memory.
6. the control system that is used for frequency converter system test appearance as claimed in claim 1 is characterized in that: said iic bus driver adopts the SN65HVD105D cake core.
7. the control system that is used for frequency converter system test appearance as claimed in claim 1 is characterized in that: said UART serial driver adopts the SN75176 cake core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204185282U CN202383211U (en) | 2011-10-28 | 2011-10-28 | Control system used for frequency converter whole machine tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204185282U CN202383211U (en) | 2011-10-28 | 2011-10-28 | Control system used for frequency converter whole machine tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202383211U true CN202383211U (en) | 2012-08-15 |
Family
ID=46631704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204185282U Expired - Lifetime CN202383211U (en) | 2011-10-28 | 2011-10-28 | Control system used for frequency converter whole machine tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202383211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149391A (en) * | 2013-03-07 | 2013-06-12 | 广州三晶电气有限公司 | Test frame |
| CN105606922A (en) * | 2015-12-18 | 2016-05-25 | 常熟理工学院 | Multi-frequency-converter aging test method and system based on LabVIEW |
-
2011
- 2011-10-28 CN CN2011204185282U patent/CN202383211U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149391A (en) * | 2013-03-07 | 2013-06-12 | 广州三晶电气有限公司 | Test frame |
| CN103149391B (en) * | 2013-03-07 | 2016-04-06 | 广州三晶电气有限公司 | A kind of testing jig |
| CN105606922A (en) * | 2015-12-18 | 2016-05-25 | 常熟理工学院 | Multi-frequency-converter aging test method and system based on LabVIEW |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |
|
| CX01 | Expiry of patent term |