CN203423640U - Direct-current brushless servo control system - Google Patents
Direct-current brushless servo control system Download PDFInfo
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- CN203423640U CN203423640U CN201320398304.9U CN201320398304U CN203423640U CN 203423640 U CN203423640 U CN 203423640U CN 201320398304 U CN201320398304 U CN 201320398304U CN 203423640 U CN203423640 U CN 203423640U
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Abstract
The utility model discloses a direct-current brushless servo control system which comprises a system processing module, an IPM module, a power source processing module, a signal collecting module and a monitoring module, wherein the signal collecting module collects working condition information of the system and sends the working condition information to the system processing module for being processed; the system processing module outputs PWM pulse control information to the IPM module and sends display signals to the monitoring module at the same time, after the received signals being processed; and the IPM module converts the received PWM pulse signals into three routes of square wave signals, each two of which has a 120 degree angle, to control a direct-current brushless motor to operate. The direct-current brushless servo control system is high in rotation speed, high in efficiency, and good in dynamic response since a square wave is adopted to control the brushless direct-current motor; and the direct-current brushless servo control system is simple in structure and economic in system cost, since no isolation is needed between elements and a PWM output terminal.
Description
Technical field
The utility model belongs to Motor Control Field.
Background technology
Modern AC Adjusting Speed Technology is one of the major progress of the later stage human society in 20th century, its development speed is fast, the wide of involvement aspect is unprecedented, make ancient electric machine under new technology application, obtain the promotion and application of maximum area, make the mankind's productivity further improve and amplify.
That in commercial Application, uses for a long time is all asynchronous machine or has brushless motor.Compare asynchronous machine, the efficiency of brshless DC motor is higher, and rotating speed is higher; Compared brushless motor, the life-span of brushless electric machine is longer, also more easily safeguards.Therefore along with industrial automation level is more and more higher, market to the life-span of electric system, energy-conservation higher requirement all proposed, brshless DC motor in this case, is popularized rapidly market, and obtains the approval in market.
Powerful along with the development of motor, electric machines control technology, power electronic device and microprocessor function, makes just thinking high frequency, digitized future development in the technology of controlling motor.Particularly this realize to control BLDC(brshless DC motor) in the process of algorithm, dsp processor has played immeasurable effect, adopt dsp processor to control to make and control BLDC(brshless DC motor realizing) the algorithm simple possible that becomes, versatility is more and more stronger.
At present, the brshless DC motor that adopts dsp processor to control, most of employing buffer circuit that needs, complex structure, cost is high.Algorithm is complicated simultaneously, is unfavorable for generally applying.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of brush DC servo-control system is provided, by adopting square wave to control brshless DC motor, has saved PWM output buffer circuit, final result complex structure, problem that cost is high.
The utility model, for solving the problems of the technologies described above, adopts following technical scheme:
A servo-control system, comprises system processing module, IPM module, power supply processing module, signal acquisition module, monitoring module; Wherein, described system processing module is connected with IPM module, power supply processing module, signal acquisition module, monitoring module respectively; Described signal acquisition module comprises temperature sensor, velocity transducer, electric current and voltage Acquisition Circuit, Hall transducer; Wherein temperature sensor detects radiator temperature, and velocity transducer detects outside input motor velocity signal, and electric current and voltage Acquisition Circuit gathers busbar voltage, bus current signal, and Hall transducer gathers the Hall signal of external motor; Described power supply processing module comprises rectification circuit, filter circuit, DC/DC module, protective circuit; Described rectification circuit is converted to direct voltage by grid ac voltage, and described direct voltage is connected with DC/DC module, IPM module respectively after filtering afterwards; Described protective circuit is connected with direct current voltage bus; Described monitoring module comprises 5 LED displays, control panel; Described LED display, control panel are connected with system control module respectively.
Described protective circuit comprises at least one in open circuit protection, short-circuit protection, overcurrent protection, overvoltage protection.
Described DC/DC module input voltage is converted to+5V ,+15V ,+24V voltage.
Compared with prior art, the utlity model has following beneficial effect:
This programme adopts square wave to control brshless DC motor, has advantages of that rotating speed is high, efficiency is high, dynamic response is high.
PWM output does not need to isolate components and parts, simple in structure, has saved system cost.
Accompanying drawing explanation
Fig. 1 is the utility model control system block diagram.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is elaborated:
As shown in Figure 1, a kind of brush DC servo-control system, comprises system processing module DSP, IPM module, power supply processing module, signal acquisition module, monitoring module; Wherein, described signal acquisition module acquisition system work state information, and be sent to described system processing module and process, described system processing module according to the signal receiving, process after the control information of output pwm pulse to IPM module, send display to monitoring module simultaneously; Described IPM module converts the pwm pulse signal receiving to have between two 120 Du tri-road square-wave signals control DC brushless motor operations to.
Described signal acquisition module comprises temperature sensor, velocity transducer, electric current and voltage Acquisition Circuit, Hall transducer; Wherein temperature sensor detects radiator temperature and is sent to DSP, and velocity transducer detects outside input motor velocity signal and is sent to DSP, and electric current and voltage Acquisition Circuit gathers busbar voltage, bus current signal, and is sent to DSP and processes; U, V, W tri-road Hall signals that Hall transducer gathers external motor are sent to DSP, and 1 road IO input signal is connected with DSP by optical coupling isolation circuit.
Described dsp processor receives the signal of various collections, and sampled signal is carried out to algorithm calculation process, exports 6 road pwm pulse signals to IPM module.IPM module receives the pwm pulse signal that DSP sends, and U, V, W tri-road square-wave signals that these signals convert 120 degree of being separated by between two to are controlled to brshless DC motor.The U of described IPM module, V, W end are connected with U, V, the W end of motor respectively.
Electrical network ac input end L, N after current rectifying and wave filtering circuit on the one hand as the input of DC/DC modular converter, on the other hand as the input of IPM module, for DC brushless motor provides power resources; Switch RY1 and electric capacity form busbar voltage sample circuit, and circuit breaker F1 is connected in DC bus and plays a protective role; Bus current sampling module collects current signal and exports overcurrent protection module to through F0 pin.DC/DC modular converter input voltage is converted to+5V ,+15V ,+24V voltage, as accessory power supply, are low pressure electricity consumption module for power supply.
Described supervision module comprises LED display and control panel, by SPI mouth, is connected with dsp processor, and described LED display, control panel adopt respectively lenticular wire to be connected with CH452, and CH452 is connected with dsp processor.5 LED that set according to man-machine interface show and 6 buttons, externally do not regulate in the situation of parameter, do not need to connect panel, have therefore reduced on the whole system cost.
Described protective circuit comprises at least one in open circuit protection, short-circuit protection, overcurrent protection, overvoltage protection.
Claims (3)
1. a brush DC servo-control system, is characterized in that: comprise system processing module, IPM module, power supply processing module, signal acquisition module, monitoring module; Wherein, described system processing module is connected with IPM module, power supply processing module, signal acquisition module, monitoring module respectively; Described signal acquisition module comprises temperature sensor, velocity transducer, electric current and voltage Acquisition Circuit, Hall transducer; Wherein temperature sensor detects radiator temperature, and velocity transducer detects outside input motor velocity signal, and electric current and voltage Acquisition Circuit gathers busbar voltage, bus current signal, and Hall transducer gathers the Hall signal of external motor; Described power supply processing module comprises rectification circuit, filter circuit, DC/DC module, protective circuit; Described rectification circuit is converted to direct voltage by grid ac voltage, and described direct voltage is connected with DC/DC module, IPM module respectively after filtering afterwards; Described protective circuit is connected with direct current voltage bus; Described monitoring module comprises 5 LED displays, control panel; Described LED display, control panel are connected with system control module respectively.
2. brush DC servo-control system according to claim 1, is characterized in that: described protective circuit comprises at least one in open circuit protection, short-circuit protection, overcurrent protection, overvoltage protection.
3. brush DC servo-control system according to claim 1, is characterized in that: described DC/DC module input voltage is converted to+5V ,+15V ,+24V voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320398304.9U CN203423640U (en) | 2013-07-05 | 2013-07-05 | Direct-current brushless servo control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320398304.9U CN203423640U (en) | 2013-07-05 | 2013-07-05 | Direct-current brushless servo control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203423640U true CN203423640U (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320398304.9U Expired - Fee Related CN203423640U (en) | 2013-07-05 | 2013-07-05 | Direct-current brushless servo control system |
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| Country | Link |
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| CN (1) | CN203423640U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107592038A (en) * | 2017-10-31 | 2018-01-16 | 浙江航星电机有限公司 | A kind of home rice whitener system of brushless electric machine servo controller driving |
| CN109617459A (en) * | 2018-12-28 | 2019-04-12 | 江苏大学 | A kind of permanent magnet synchronous electric motor driving power plate circuit and its design method |
| CN110424093A (en) * | 2019-08-05 | 2019-11-08 | 常州泽明自动化设备有限公司 | A kind of brushless controller of Computerized flat knitting machine control roller operation |
-
2013
- 2013-07-05 CN CN201320398304.9U patent/CN203423640U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107592038A (en) * | 2017-10-31 | 2018-01-16 | 浙江航星电机有限公司 | A kind of home rice whitener system of brushless electric machine servo controller driving |
| CN109617459A (en) * | 2018-12-28 | 2019-04-12 | 江苏大学 | A kind of permanent magnet synchronous electric motor driving power plate circuit and its design method |
| CN110424093A (en) * | 2019-08-05 | 2019-11-08 | 常州泽明自动化设备有限公司 | A kind of brushless controller of Computerized flat knitting machine control roller operation |
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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: 20140205 Termination date: 20140705 |
|
| EXPY | Termination of patent right or utility model |