CN210405137U - Direct-current brushless motor driving device for naval vessel valve - Google Patents
Direct-current brushless motor driving device for naval vessel valve Download PDFInfo
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- CN210405137U CN210405137U CN201921168977.9U CN201921168977U CN210405137U CN 210405137 U CN210405137 U CN 210405137U CN 201921168977 U CN201921168977 U CN 201921168977U CN 210405137 U CN210405137 U CN 210405137U
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Abstract
The utility model discloses a direct current brushless motor drive arrangement for naval vessel valve belongs to three-phase brushless direct current motor drive technical field, characterized by: the power supply comprises a power supply conversion circuit, a control circuit, an interface circuit and a power driving circuit; the control circuit comprises a minimum system circuit based on an STM32F103RCT6 main control chip, a positive and negative rotating speed adjusting circuit and a PWM signal optical coupler isolation circuit output to an H bridge; the interface circuit comprises an external control and feedback optical coupling isolation circuit, a Hall signal isolation trimming circuit and an OLED screen driving circuit; the power driving circuit comprises a front-stage driving circuit based on IR2136, an H-bridge inverter circuit based on IRFB4110 and a MOSFET protection circuit. This patent adopts digital chip STM32F103RCT6 as main control chip, and the cooperation full-bridge inverter circuit carries out electric actuator's drive control, and the cooperation micro-gap switch realizes 0 to 90 valve angle outputs.
Description
Technical Field
The utility model belongs to the technical field of the brushless DC motor drive of three-phase relates to closed-loop control technique, H bridge drive technique, AD conversion technique, especially involve a brushless DC motor drive arrangement for naval vessel valve.
Background
The valve is one of the important elements widely used in naval vessels, and can be divided into two types of rotary type and direct-acting type according to the opening and closing mode of the valve, and the valve control system is a device for controlling the opening and closing of the valve by using oil pressure, air pressure or electricity as power by a control console, and is mainly divided into the following steps according to the control mode: the pneumatic driving and the hydraulic driving need to be configured with corresponding air pressure sources, hydraulic sources and huge pipeline accessories, have certain influence on the internal space and the safety of the naval vessel, and generate larger noise during operation. The electric drive has the advantages of being rapid in opening and closing, improving the concealment performance of the naval vessels, improving the space utilization rate of the naval vessels and the like, and is popularized and used in the naval vessels along with the trend of full electrification of the naval vessels.
The electric control system for the naval vessel valve has special requirements on the aspects of opening and closing time, power density, transient noise, specification and size, corrosion resistance and the like, and the electric control system for the valve in the domestic market cannot meet the use requirements. Therefore, research work is carried out, and a valve electric control system which meets the use requirement of the naval vessel environment is developed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the above-mentioned technical problem who exists among the prior art, provide a DC brushless motor drive arrangement for naval vessel valve, adopt digital chip STM32F103RCT6 as main control chip, the cooperation full-bridge inverter circuit carries out electric actuator's drive control, cooperation micro-gap switch realizes 0 to 90 valve angle outputs. The control strategy of the electric actuator adopts a three-closed-loop control model of rotating speed, current and position, and has the functions of soft start, forward and reverse rotation control, rotating speed regulation, valve in-place electric protection, locked-rotor electric protection and the like.
The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be:
a direct current brushless motor driving device for a naval vessel valve is matched with a full-bridge inverter circuit to carry out driving control on an electric actuator, and is matched with a microswitch to realize valve angle output of 0-90 degrees; the electric actuator is provided with a Hall sensor for detecting the rotating speed and the current of the electric actuator; a position detection element for detecting the opening degree of the naval vessel valve is arranged at the naval vessel valve; the direct current brushless motor driving device comprises a motor, a motor shaft: the power supply comprises a power supply conversion circuit, a control circuit, an interface circuit and a power driving circuit; wherein:
the control circuit comprises a minimum system circuit based on an STM32F103RCT6 main control chip, a positive and negative rotating speed adjusting circuit and a six-path PWM signal optical coupler isolation circuit output to an H bridge;
the interface circuit comprises an external control and feedback optical coupling isolation circuit, a Hall signal isolation trimming circuit and an OLED screen driving circuit;
the power driving circuit comprises a front stage driving circuit based on IR2136, an H bridge inverter circuit based on IRFB4110 and a MOSFET protection circuit;
the power conversion circuit includes: the device comprises a 24V-to-5V isolation DC-DC conversion circuit and a 5V-to-3.3V power conversion circuit, wherein the 24V isolation DC-DC conversion circuit is used for supplying power to a main control chip; the 24V-to-15V non-isolated linear power conversion circuit is used for supplying power to a preceding-stage driving chip; the 15V-to-5V non-isolated linear power supply conversion circuit is used for supplying power to a pull-up circuit on the optical coupling isolation output side of a PWM signal; the 5V-to-5V isolation DC-DC conversion circuit is used for pulling up and supplying power to an OLED screen and an external input signal.
Furthermore, the control circuit is: an external crystal oscillator circuit provides a reference clock source for the main control chip, an SWD mode burning circuit provides a burning program for the main control chip, and a reset circuit provides a program reset function; the external crystal oscillator circuit, the SWD mode burning circuit and the reset circuit form a minimum system circuit, a potentiometer speed regulating circuit inputs a voltage value to an analog input port of the main control chip, the HCPL0630 type optical coupler forms an isolation output circuit, and 6 paths of PWM signals are output to a front-stage driving chip in a pull-up output mode.
And the following steps: the interface circuit is as follows: the isolation input circuit is composed of a TLP290-4 type optocoupler and a TLP181 type optocoupler and is used for inputting a control signal, an in-place signal and a manual operation or electric operation selection signal into the main control chip; a shaping filter circuit consisting of a 74HC14 Schmitt inverter is used for shaping and then pulling up and inputting Hall signals of the direct current brushless motor into a main control chip; and the OLED screen driving circuit is composed of an ADUM1510 type chip and is used for displaying data sent by the main control chip on the OLED screen.
And the following steps: the power driving circuit is as follows: the front-stage driving circuit consists of an IR2136 type power driving chip and is used for amplifying the power of six paths of PWM driving signals transmitted by the main control chip so as to drive the on-off of six paths of power switching devices; the H-bridge circuit consists of IRFB4110 type MOSFETs and is used for circularly inverting the +24V direct-current bus voltage according to a specific sequence so as to control the three-phase direct-current brushless motor to operate; MOSFET protection circuit composed of resistor-capacitor device for preventing MOSFET damage caused by MOSFET driving voltage pumping
The utility model has the advantages and positive effects that:
through adopting the technical scheme, the utility model discloses a digital chip STM32F103RCT6 carries out electric actuator's drive control as main control chip, cooperation full-bridge inverter circuit, and cooperation micro-gap switch realizes 0 to 90 valve angle outputs. The control strategy of the electric actuator adopts a three-closed-loop control model of rotating speed, current and position, and has the functions of soft start, forward and reverse rotation control, rotating speed regulation, valve in-place electric protection, locked-rotor electric protection and the like. The invention can realize the quick response of the valve action in the limited naval vessel space, and simultaneously, the utility model adopts the electrically driven valve to replace the traditional pneumatic and hydraulic drive valve, does not need pneumatic and hydraulic sources and complex pipeline accessories, saves the naval vessel space, reduces the operation noise, improves the concealment of the naval vessel, and accords with the trend of the fully electric propulsion of the naval vessel; the integrated design of drive control is convenient for change and maintenance, saves space.
Drawings
FIG. 1 is an overall schematic diagram of a preferred embodiment of the present invention;
fig. 2 is a power driving circuit diagram of the preferred embodiment of the present invention;
fig. 3 is a control circuit diagram of the preferred embodiment of the present invention;
FIG. 4 is a circuit diagram of the reverse-connection prevention power supply of the preferred embodiment of the present invention;
fig. 5 is an interface circuit diagram of the preferred embodiment of the present invention;
fig. 6 is a schematic diagram of the electrical wiring of the preferred embodiment of the present invention.
Detailed Description
For further understanding of the contents, features and effects of the present invention, the following embodiments are exemplified and will be described in detail with reference to the accompanying drawings:
referring to fig. 1-6, a dc brushless motor driving apparatus for a naval vessel valve, which is used for driving and controlling an electric actuator in cooperation with a full-bridge inverter circuit, and realizing valve angle output of 0 ° to 90 ° in cooperation with a micro switch; the electric actuator is provided with a Hall sensor for detecting the rotating speed and the current of the electric actuator; a position detection element for detecting the opening degree of the naval vessel valve is arranged at the naval vessel valve; the direct current brushless motor driving device comprises a motor, a motor shaft: the power supply comprises a power supply conversion circuit, a control circuit, an interface circuit and a power driving circuit; wherein:
the control circuit comprises a minimum system circuit based on an STM32F103RCT6 main control chip, a positive and negative rotating speed adjusting circuit and a six-path PWM signal optical coupler isolation circuit output to an H bridge.
The interface circuit comprises an external control and feedback optical coupling isolation circuit, a Hall signal isolation trimming circuit and an OLED screen driving circuit;
the power driving circuit comprises a front stage driving circuit based on IR2136, an H bridge inverter circuit based on IRFB4110 and a MOSFET protection circuit;
the power conversion circuit includes: the device comprises a 24V-to-5V isolation DC-DC conversion circuit and a 5V-to-3.3V power conversion circuit, wherein the 24V isolation DC-DC conversion circuit is used for supplying power to a main control chip; the 24V-to-15V non-isolated linear power conversion circuit is used for supplying power to a preceding-stage driving chip; the 15V-to-5V non-isolated linear power supply conversion circuit is used for supplying power to a pull-up circuit on the optical coupling isolation output side of a PWM signal; the 5V-to-5V isolation DC-DC conversion circuit is used for pulling up and supplying power to an OLED screen and an external input signal.
In the preferred embodiment, the digital chip STM32F103RCT6 is used as a main control chip, the full-bridge inverter circuit is matched for driving and controlling the electric actuator, and the microswitch is matched for realizing the valve angle output from 0 degree to 90 degrees. The control strategy of the electric actuator adopts a three-closed-loop control model of rotating speed, current and position, and has the functions of soft start, forward and reverse rotation control, rotating speed regulation, valve in-place electric protection, locked-rotor electric protection and the like.
Referring to fig. 3, the control circuit is: an external crystal oscillator circuit provides a reference clock source for the main control chip, an SWD mode burning circuit provides a burning program for the main control chip, and a reset circuit provides a program reset function; the external crystal oscillator circuit, the SWD mode burning circuit and the reset circuit form a minimum system circuit, a potentiometer speed regulating circuit inputs a voltage value to an analog input port of the main control chip, the HCPL0630 type optical coupler forms an isolation output circuit, and 6 paths of PWM signals are output to a front-stage driving chip in a pull-up output mode.
Please refer to fig. 5: the interface circuit is as follows: the isolation input circuit is composed of a TLP290-4 type optocoupler and a TLP181 type optocoupler and is used for inputting a control signal, an in-place signal and a manual operation or electric operation selection signal into the main control chip; a shaping filter circuit consisting of a 74HC14 Schmitt inverter is used for shaping and then pulling up and inputting Hall signals of the direct current brushless motor into a main control chip; and the OLED screen driving circuit is composed of an ADUM1510 type chip and is used for displaying data sent by the main control chip on the OLED screen.
Referring to fig. 2, the power driving circuit includes: the front-stage driving circuit consists of an IR2136 type power driving chip and is used for amplifying the power of six paths of PWM driving signals transmitted by the main control chip so as to drive the on-off of six paths of power switching devices; the H-bridge circuit consists of IRFB4110 type MOSFETs and is used for circularly inverting the +24V direct-current bus voltage according to a specific sequence so as to control the three-phase direct-current brushless motor to operate; a MOSFET protection circuit is formed by a resistor-capacitor device for preventing damage to the MOSFET due to pumping of the MOSFET driving voltage.
The control scheme is shown in figure 1.
1) STM32F103RCT6 is adopted by the main control chip, and mainly used on-chip resources are as follows: the device comprises a 4-path 4-channel timer (used for generating PWM signals), an SPI (used for externally connecting an OLED display screen), and an I/O (input/output) port (used for receiving rotating speed and current signals and outputting control signals);
2) waveform trimming is carried out on input signals of a built-in Hall position sensor of the motor in a mode of correcting rising and falling edges by using a 3.3V pull-up plus ground capacitance filtering plus Schmitt phase inverter;
3) the drive chip in the preceding stage drive circuit adopts IR2136, and can realize the function of driving 6 MOS tubes by single power supply in combination with the bootstrap circuit design;
4) the H-bridge inverter circuit adopts IRFB4110 type MOSFET, has superior performance parameters of drain-source voltage of 100V and drain-source current of 120A on the premise of ensuring the heat dissipation condition, and has a smaller packaging volume of 14.22 x 9.65 mm;
5) the electric actuator adopts a 24V power supply three-phase direct current brushless motor;
6) the OLED screen is supposed to adopt ADUM1510 for human-computer interaction interface display.
Fig. 1 shows the connection relationship among the power conversion circuit, the control circuit, the interface circuit, the power driving circuit and the valve load driven by the electric actuator.
Fig. 2 shows a power driving circuit diagram, which mainly includes a front stage driving circuit adopting a bootstrap boosting mode; an H-bridge circuit and a MOSFET protection circuit. Wherein: 2a is a preceding stage driving circuit, and 2b is an H bridge circuit.
The control circuit diagram shown in fig. 3 mainly includes a minimum system circuit based on an STM32F103RCT6 main control chip, a positive and negative rotation speed adjusting circuit, and six PWM signal optical coupler isolation circuits output to an H-bridge.
Fig. 4 shows an anti-reverse power circuit diagram, which mainly includes a 24V to 5V isolation DC-DC conversion circuit and a 5V to 3.3V power conversion circuit for supplying power to a main control chip; the 24V-to-15V non-isolated linear power conversion circuit is used for supplying power to a preceding-stage driving chip; the 15V-to-5V non-isolated linear power supply conversion circuit is used for supplying power to a pull-up circuit on the optical coupling isolation output side of a PWM signal; the 5V-to-5V isolation DC-DC conversion circuit is used for pulling up and supplying power to an OLED screen and an external input signal.
FIG. 5 shows an interface circuit diagram that mainly includes an isolated input circuit for input of control signals, in-place signals, and manual/electrical operation selection signals; the shaping filter circuit is used for shaping and inputting a Hall signal of the motor; OLED screen driving circuit for driving OLED screen
Fig. 6 is a schematic diagram showing electrical connections between the motor drive device (control board) and the external control switch, limit switch, and motor load.
Please refer to fig. 4: the reverse connection prevention power circuit comprises: the isolation power supply scheme is adopted, the power circuit and the control circuit are isolated from a power supply inlet by an isolation DC-DC circuit, and a high-speed switch optical coupler or a linear optical coupler is adopted for isolating a signal interaction part of the power circuit and the control circuit, so that high-current crosstalk is avoided.
In the power interface circuit, overvoltage protection is carried out by using a Transient Voltage Suppressor (TVS), overcurrent protection is carried out by using a fuse, and power polarity reversal protection is realized by designing a MOSFET-based switching circuit. The specific implementation mode is as follows: a MOSFET-based switching circuit is designed at a power supply inlet to realize reverse connection protection of power supply polarity, when the power supply polarity is correct, the switching circuit is switched on, a power supply ground loop is conducted, and a subsequent circuit is electrified; when the polarity of the power supply is reversely connected, the switch circuit is closed, the power supply ground loop is switched off, and the subsequent circuit loses power.
An interface circuit: the input signal of the Hall sensor is filtered and waveform corrected by adopting a mode of low-pass filtering and Schmitt phase inverter, so that the rising edge and the falling edge of the Hall sensor are steeper and straighter, and the ripple wave is reduced.
The phase change scheme comprises the following steps: the Hall sensor is adopted to judge the phase change time, the MOS tubes are controlled to be conducted in pairs according to Hall signals in six three phases, and the probability of direct connection of the upper MOS tube and the lower MOS tube on the same bridge arm in the two-to-two conduction mode is far lower than that in the three-to-three conduction mode according to the phase change time sequence.
MOS pipe drive circuit: the S poles of the three MOS tubes of the bridge arm generate suspension voltage by adopting a bootstrap boosting technology, so that the aim of driving the six MOS tubes of the full bridge by only using a single power supply for power supply is fulfilled.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (4)
1. A direct current brushless motor driving device for a naval vessel valve is matched with a full-bridge inverter circuit to carry out driving control on an electric actuator, and is matched with a microswitch to realize valve angle output of 0-90 degrees; the electric actuator is provided with a Hall sensor for detecting the rotating speed and the current of the electric actuator; a position detection element for detecting the opening degree of the naval vessel valve is arranged at the naval vessel valve; the method is characterized in that: the direct current brushless motor driving device comprises a motor, a motor shaft: the power supply comprises a power supply conversion circuit, a control circuit, an interface circuit and a power driving circuit; wherein:
the control circuit comprises a minimum system circuit based on an STM32F103RCT6 main control chip, a positive and negative rotating speed adjusting circuit and a six-path PWM signal optical coupler isolation circuit output to an H bridge;
the interface circuit comprises an external control and feedback optical coupling isolation circuit, a Hall signal isolation trimming circuit and an OLED screen driving circuit;
the power driving circuit comprises a front stage driving circuit based on IR2136, an H bridge inverter circuit based on IRFB4110 and a MOSFET protection circuit;
the power conversion circuit includes: the device comprises a 24V-to-5V isolation DC-DC conversion circuit and a 5V-to-3.3V power conversion circuit, wherein the 24V isolation DC-DC conversion circuit is used for supplying power to a main control chip; the 24V-to-15V non-isolated linear power conversion circuit is used for supplying power to the front-stage driving circuit; the 15V-to-5V non-isolated linear power supply conversion circuit is used for supplying power to a pull-up circuit on the optical coupling isolation output side of a PWM signal; the 5V-to-5V isolation DC-DC conversion circuit is used for pulling up and supplying power to an OLED screen and an external input signal.
2. The dc brushless motor drive for a naval vessel valve according to claim 1, wherein: the control circuit is as follows: an external crystal oscillator circuit provides a reference clock source for the main control chip, an SWD mode burning circuit provides a burning program for the main control chip, and a reset circuit provides a program reset function; the external crystal oscillator circuit, the SWD mode burning circuit and the reset circuit form a minimum system circuit, a potentiometer speed regulating circuit inputs a voltage value to an analog input port of the main control chip, the HCPL0630 type optical coupler forms an isolation output circuit, and 6 paths of PWM signals are output to a front-stage driving chip in a pull-up output mode.
3. The dc brushless motor drive for a naval vessel valve according to claim 1, wherein: the interface circuit is as follows: the isolation input circuit is composed of a TLP290-4 type optocoupler and a TLP181 type optocoupler and is used for inputting a control signal, an in-place signal and a manual operation or electric operation selection signal into the main control chip; a shaping filter circuit consisting of a 74HC14 Schmitt inverter is used for shaping and then pulling up and inputting Hall signals of the direct current brushless motor into a main control chip; and the OLED screen driving circuit is composed of an ADUM1510 type chip and is used for displaying data sent by the main control chip on the OLED screen.
4. The dc brushless motor drive for a naval vessel valve according to claim 1, wherein: the power driving circuit is as follows: the front-stage driving circuit consists of an IR2136 type power driving chip and is used for amplifying the power of six paths of PWM driving signals transmitted by the main control chip so as to drive the on-off of six paths of power switching devices; the H-bridge circuit consists of IRFB4110 type MOSFETs and is used for circularly inverting the +24V direct-current bus voltage according to a specific sequence so as to control the three-phase direct-current brushless motor to operate; a MOSFET protection circuit is formed by a resistor-capacitor device for preventing damage to the MOSFET due to pumping of the MOSFET driving voltage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921168977.9U CN210405137U (en) | 2019-07-18 | 2019-07-18 | Direct-current brushless motor driving device for naval vessel valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921168977.9U CN210405137U (en) | 2019-07-18 | 2019-07-18 | Direct-current brushless motor driving device for naval vessel valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708708A (en) * | 2021-09-09 | 2021-11-26 | 重庆大学 | MOSFET full-bridge driving circuit for electric automobile DC brushless motor |
| CN113965110A (en) * | 2021-10-29 | 2022-01-21 | 深圳市鑫辉微电子有限公司 | Single MCU driven double-circuit DC brushless motor controller |
-
2019
- 2019-07-18 CN CN201921168977.9U patent/CN210405137U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708708A (en) * | 2021-09-09 | 2021-11-26 | 重庆大学 | MOSFET full-bridge driving circuit for electric automobile DC brushless motor |
| CN113965110A (en) * | 2021-10-29 | 2022-01-21 | 深圳市鑫辉微电子有限公司 | Single MCU driven double-circuit DC brushless motor controller |
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