CN204190664U - A kind of hydraulic pump drive electric machine control system based on CAN design - Google Patents
A kind of hydraulic pump drive electric machine control system based on CAN design Download PDFInfo
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- CN204190664U CN204190664U CN201420685287.1U CN201420685287U CN204190664U CN 204190664 U CN204190664 U CN 204190664U CN 201420685287 U CN201420685287 U CN 201420685287U CN 204190664 U CN204190664 U CN 204190664U
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Abstract
The utility model discloses a kind of hydraulic pump drive electric machine control system based on CAN design, comprise host computer, CAN communication card, master control borad, drive plate, filter band, power-supply system and controlled electric system, CAN is adopted to be interconnected between them, master control borad is by PC, SPWM output module, motor temperature detection module, motor speed detection module, electric moter voltage detection module, current of electric detection module and CAN communication module composition, PC is connected with drive plate by SPWM output module, drive plate is connected with controlled electric system by filter band, PC is by motor temperature detection module, motor speed detection module, electric moter voltage detection module, current of electric detection module and controlled electric system are interconnected, PC is connected with CAN communication module and is subject to the control of host computer by CAN communication clamping, power-supply system provides the various working powers needed for system.Native system has high high temperature reliability, can guarantee that system is at high temperature 150 DEG C of subsurface environment reliably workings.
Description
Technical field
The utility model refers more particularly to a kind of hydraulic pump drive electric machine control system based on CAN design.
Background technology
Sea offshore oil drilling platform will carry out detection sampling to submarine oil, and detector used is a cast sniffer reaching tens of meters, i.e. stratum testing evaluation instrument (Formation EvaluationTool).Stratum testing evaluation instrument is made up of multiple electric component, and wherein hydraulic pump drive motor is its critical piece, for driving instrument hydraulic pump, provides hydraulic power to complete every mechanical action of instrument.The reliability of hydraulic pump drive motor is very important, and its good operation is the important guarantee guaranteeing that FET device normally runs.
At present, adopt ground power supply supply power mode to the control of hydraulic pump drive motor both at home and abroad, the advantage of this control mode is more: technology tradition, simple, directly perceived, and cost is low.But the shortcoming of this kind of control mode is also fairly obvious, as volume is large, Heavy Weight, efficiency is low, and regulation voltage needs manual intervention, automatic regulation function difference etc.The actual application background of petroleum exploration, in the urgent need to developing the electric machine control system of reliability service under the environment of 150 DEG C, a kind of down-hole, it can realize controlling the ac variable frequency speed regulation of motor, improves motor operational efficiency, reduces the wastage, life-saving.
Native system carries out project verification exploitation based on this actual application background and demand, can stablize, control reliably under the environment of 150 DEG C, down-hole to hydraulic pump drive motor, the effective reliability service ensureing instrument.Meet field operation requirement as one, very practical electric machine control system simultaneously, be expected to apply within the scope of the whole industry, have relatively more good market prospects.
Utility model content
Technical problem to be solved in the utility model there is provided a kind of hydraulic pump drive electric machine control system based on CAN design, it adopts SPWM technology, achieve the variable frequency regulating speed control of motor, solve control and the monitoring running state problem of motor under 150 DEG C of hot environments well, effectively ensure that the stable operation of system.
For solving the problems of the technologies described above, a kind of hydraulic pump drive electric machine control system based on CAN design of the utility model, comprise host computer, CAN communication card, master control borad, drive plate, filter band, power-supply system and controlled electric system, CAN is adopted to be interconnected between them, described master control borad is by PC, SPWM output module, motor temperature detection module, motor speed detection module, electric moter voltage detection module, current of electric detection module and CAN communication module composition, described PC is connected with drive plate by SPWM output module, described drive plate is connected with controlled electric system by filter band, described PC is by motor temperature detection module, motor speed detection module, electric moter voltage detection module, current of electric detection module and controlled electric system are interconnected, described PC is connected with CAN communication module and is subject to the control of host computer by CAN communication clamping, described power-supply system provides the various working powers needed for system.
Further, described PC is microprocessor DSPIC30F6010A.
Preferably, described power-supply system is for controlling power module and the input of AC220V main power source.
Further, described AC220V main power source is input as drive plate provides power supply.
Preferably, described control power module provides+5V ,+15V ,-15V three kinds of power parameters.
Further, described control power module provides power supply for master control borad.
Further, also comprise display, keyboard and mouse, described display, keyboard are connected with host computer respectively with mouse.
The beneficial effects of the utility model: (1) control system adopts total digitalization design, with DSPIC30F6010A high-speed microcomputer for core, achieve data communication by industrial field bus (CAN) and share, can detect in real time and transmit data, achieve the interconnection between multi-CPU and data sharing, the real-time detect, control, shown is good, and reliability is high; (2) control system adopts motor electric current (moment) from intelligentized control method algorithm softwares such as motion trackings, and the high-performance realizing motor is run.There is the features such as loss is little, efficiency is high, noise is little, operate steadily, dynamic response is fast.(3) control system has high high temperature reliability, guarantees that system is at high temperature 150 DEG C of subsurface environment reliably workings.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is further described in detail.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model temperature sensing circuit schematic diagram.
Concrete implementation result
As shown in Figure 1.A kind of hydraulic pump drive electric machine control system based on CAN design, comprise host computer, CAN communication card, master control borad, drive plate, filter band, power-supply system and controlled electric system, CAN is adopted to be interconnected between them, master control borad is by PC, SPWM output module, motor temperature detection module, motor speed detection module, electric moter voltage detection module, current of electric detection module and CAN communication module composition, PC is connected with drive plate by SPWM output module, drive plate is connected with controlled electric system by filter band, PC is by motor temperature detection module, motor speed detection module, electric moter voltage detection module, current of electric detection module and controlled electric system are interconnected, PC is connected with CAN communication module and is subject to the control of host computer by CAN communication clamping, power-supply system provides the various working powers needed for system.
As shown in Figure 2.PT100 fully contacts with motor surface, and when motor temperature changes, the resistance of PT100 also changes thereupon, utilizes the circuit shown in Fig. 2 can record the change of resistance, thus records motor temperature.Circuit analysis: IC6A, R97, R98 form a 200mA constant-current source circuit; Utilize constant-current source that the resistance of PT100 is converted to voltage signal; Recycling IC7 gathers and gives single-chip microcomputer by signal; Last single-chip microcomputer calculates motor temperature according to temperature curve again.
Operation principle of the present utility model: control board is the core of whole electric machine control system, the instruction being responsible for transmitting with CAN communication form according to host computer produces SPWM ripple, control the start/stop of motor, detect the running status of hydraulic pump drive motor simultaneously, and by parameter, as voltage, electric current, temperature, rotating speed, and fault message is passed to host computer by CAN communication and is shown.Drive plate adopts rectification, the two-in-one modular design of inversion, and realize AC220V input, three-phase voltage, frequency-adjustable power supply export.Drive plate is responsible for controlling Rectification and Reverse according to control board SPWM ripple, realizes power supply output etc.The SPWM waveform filter that IGBT exports by filter band, for sinusoidal wave, is feeding electric motors.
It should be noted last that, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (7)
1. the hydraulic pump drive electric machine control system based on CAN design, it is characterized in that, comprise host computer, CAN communication card, master control borad, drive plate, filter band, power-supply system and controlled electric system, CAN is adopted to be interconnected between them, described master control borad is by PC, SPWM output module, motor temperature detection module, motor speed detection module, electric moter voltage detection module, current of electric detection module and CAN communication module composition, described PC is connected with drive plate by SPWM output module, described drive plate is connected with controlled electric system by filter band, described PC is by motor temperature detection module, motor speed detection module, electric moter voltage detection module, current of electric detection module and controlled electric system are interconnected, described PC is connected with CAN communication module and is subject to the control of host computer by CAN communication clamping, described power-supply system provides the various working powers needed for system.
2. the hydraulic pump drive electric machine control system based on CAN design according to claim 1, it is characterized in that, described PC is microprocessor DSPIC30F6010A.
3. the hydraulic pump drive electric machine control system based on CAN design according to claim 1, is characterized in that, described power-supply system is for controlling power module and the input of AC220V main power source.
4. the hydraulic pump drive electric machine control system based on CAN design according to claim 3, it is characterized in that, described AC220V main power source is input as drive plate provides power supply.
5. the hydraulic pump drive electric machine control system based on CAN design according to claim 1, it is characterized in that, described control power module provides+5V ,+15V ,-15V three kinds of power parameters.
6. the hydraulic pump drive electric machine control system based on CAN design according to claim 1, is characterized in that, described control power module provides power supply for master control borad.
7. the hydraulic pump drive electric machine control system based on CAN design according to claim 1, it is characterized in that, also comprise display, keyboard and mouse, described display, keyboard are connected with host computer respectively with mouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420685287.1U CN204190664U (en) | 2014-11-15 | 2014-11-15 | A kind of hydraulic pump drive electric machine control system based on CAN design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420685287.1U CN204190664U (en) | 2014-11-15 | 2014-11-15 | A kind of hydraulic pump drive electric machine control system based on CAN design |
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| Publication Number | Publication Date |
|---|---|
| CN204190664U true CN204190664U (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420685287.1U Expired - Fee Related CN204190664U (en) | 2014-11-15 | 2014-11-15 | A kind of hydraulic pump drive electric machine control system based on CAN design |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106155975A (en) * | 2015-04-07 | 2016-11-23 | 深圳市蓝海华腾技术股份有限公司 | The drive circuit of CAN mouth interconnection between multiple processors |
-
2014
- 2014-11-15 CN CN201420685287.1U patent/CN204190664U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106155975A (en) * | 2015-04-07 | 2016-11-23 | 深圳市蓝海华腾技术股份有限公司 | The drive circuit of CAN mouth interconnection between multiple processors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20151115 |
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| EXPY | Termination of patent right or utility model |