CN205750394U - A kind of frequency converter control system - Google Patents

A kind of frequency converter control system Download PDF

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Publication number
CN205750394U
CN205750394U CN201620437866.3U CN201620437866U CN205750394U CN 205750394 U CN205750394 U CN 205750394U CN 201620437866 U CN201620437866 U CN 201620437866U CN 205750394 U CN205750394 U CN 205750394U
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module
circuit
communication
serial communication
control module
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秦志
姚詹图
张万刚
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Shenzhen Hopewind Electric Co Ltd
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Shenzhen Hopewind Electric Co Ltd
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Abstract

The utility model discloses a kind of frequency converter control system, including main control module and power cell control module, main control module includes kernel control chip A, power circuit A, serial interface circuit A, field bus communication circuit, digital quantity imput output circuit A, analog input and output circuit A, relay interface circuit A;Power cell control module includes kernel control chip B, serial interface circuit B, power circuit B, analog quantity sample circuit, PWM drive circuit;Main control module is connected by serial communication with power cell control module.This utility model uses Modular electrical line structure, can use demand combinations frequency converter control system according to difference, it is not necessary to overlapping development, be substantially reduced R&D costs;Modularized design makes control system installation site in converter more flexible, it is simple to assemble and on-site maintenance.

Description

Frequency converter control system
Technical Field
The utility model relates to a modular converter control system.
Background
In a conventional inverter control system, functional circuits such as a control circuit, a detection circuit, a communication circuit, and an interface circuit are generally provided on one circuit board. For different application occasions, the circuit board structures of the frequency converter control system are different, so that different circuit board structure designs need to be adopted, the existing frequency converter control system has a large amount of repeated design and development, and a large amount of design resources are wasted.
In order to solve the defect, a frequency converter control system adopts a structural form of a main board and an expansion board, and the expansion board is coupled with the main board through interfaces, structures and the like, so that the function expansion is greatly limited, the use is not flexible, and the maintenance is not facilitated.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in providing a converter control system, overcomes current converter control system and has a large amount of redesign, function extension limited, use defects such as inflexible.
The utility model provides a technical scheme that its technical problem adopted is: constructing a frequency converter control system, which is characterized by comprising a main control module and a power unit control module;
the main control module comprises a core control chip A, a power supply circuit A, a serial communication interface circuit A, a field bus communication circuit, a digital input and output circuit A, an analog input and output circuit A and a relay interface circuit A, wherein the core control chip A is respectively in communication connection with the serial communication interface circuit A, the field bus communication circuit, the digital input and output circuit A, the analog input and output circuit A and the relay interface circuit A, and the power supply circuit A provides power for the main control module; the main control module realizes a motor control algorithm, communication with an upper computer, digital quantity IO control, analog quantity IO control and communication with other modules;
the power unit control module comprises a core control chip B, a serial communication interface circuit B, a power circuit B, an analog quantity sampling circuit and a PWM (pulse-width modulation) drive circuit; the core control chip B is respectively in communication connection with the serial communication interface circuit B, the analog quantity sampling circuit and the PWM driving circuit, and the power supply circuit B provides power supply for the power unit control module; the power unit control module realizes analog quantity sampling including current, voltage and temperature and PWM driving of a power electronic switch;
The main control module is connected with the power unit control module through serial communication.
The utility model discloses a frequency converter control system, which comprises an encoder detection module, wherein the encoder detection module comprises a core control chip C, a serial communication interface circuit C, a temperature sampling circuit, a power supply circuit C and an encoder interface circuit; the core control chip C is respectively in communication connection with the serial communication interface circuit C, the temperature sampling circuit and the encoder interface circuit, and the power supply circuit C provides power supply for the encoder detection module; the encoder detection module realizes the detection of the rotating speed, the position and the temperature of the motor;
the encoder detection module is connected with the power unit control module through serial communication or connected with the main control module through serial communication.
The utility model discloses a frequency converter control system, which comprises an interface module, wherein the interface module comprises a core control chip D, a serial communication interface circuit D, a power circuit D, a digital input/output circuit D, an analog input/output circuit D and a relay interface circuit D; the core control chip D is respectively in communication connection with the serial communication interface circuit D, the digital quantity input and output circuit D, the analog quantity input and output circuit D and the relay interface circuit D, the power supply circuit D provides power for the interface module, and the interface module realizes digital quantity, analog quantity processing and relay control;
The main control module, the power unit control module, the encoder detection module and the interface module are sequentially connected through serial communication, or the power unit control module, the encoder detection module and the interface module are respectively connected with the main control module through serial communication.
The utility model discloses a frequency converter control system, which comprises an operation panel module, wherein the operation panel module comprises a core control chip E, a serial communication interface circuit E, a power circuit E, a display circuit and a key detection circuit; the core control chip E is respectively in communication connection with the serial communication interface circuit E, the display circuit and the key detection circuit, the power supply circuit E provides power for the operation panel module, and the operation panel module realizes man-machine interaction;
the main control module, the power unit control module, the encoder detection module, the operation panel module and the interface module are sequentially connected through serial communication, or the power unit control module, the encoder detection module, the operation panel module and the interface module are respectively connected with the main control module through serial communication.
The utility model discloses a frequency converter control system, which comprises a communication extension module, wherein the communication extension module comprises a core control chip F, a serial communication interface circuit F and a power circuit F; the core control chip F is in communication connection with the serial communication interface circuit F, the power supply circuit F provides power for the communication expansion module, and the communication expansion module realizes communication switching;
The main control module, the power unit control module and the communication expansion module are sequentially connected through serial communication, and the communication expansion module is respectively connected with the encoder detection module and the interface module through serial communication.
The utility model discloses a frequency converter control system, which comprises a communication extension module, wherein the communication extension module comprises a core control chip F, a serial communication interface circuit F and a power circuit F; the core control chip F is in communication connection with the serial communication interface circuit F, the power supply circuit F provides power for the communication expansion module, and the communication expansion module realizes communication switching;
the main control module, the power unit control module and the communication expansion module are sequentially connected through serial communication, and the communication expansion module is respectively connected with the encoder detection module, the operation panel module and the interface module through serial communication.
The utility model discloses an among the converter control system, main control module include with the ethernet communication circuit that core control chip A communication is connected.
The utility model discloses an among the converter control system, main control module include with the WIFI circuit that core control chip A communication is connected.
The utility model discloses an among the converter control system, main control module including respectively with ethernet communication circuit and WIFI circuit that core control chip A communication is connected.
Implement the utility model discloses a converter control system, with prior art comparison, its beneficial effect is:
1. by adopting a modular circuit structure, a frequency converter control system capable of meeting the application requirements can be combined according to different use requirements, repeated development is not needed, and the research and development cost is greatly reduced;
2. due to the modular design, the mounting position of the control system in the frequency converter is more flexible, and the frequency converter is convenient to assemble and maintain on site.
Drawings
Fig. 1 is a diagram of a module connection relationship according to a first embodiment of the control system of the frequency converter of the present invention.
Fig. 2 is a diagram of a module connection relationship of a second embodiment of the frequency converter control system of the present invention.
Fig. 3 is a diagram of a module connection relationship of a third embodiment of the frequency converter control system of the present invention.
Fig. 4 is a structural relationship diagram of the main control module in the frequency converter control system of the present invention.
Fig. 5 is a structural diagram of a power unit control module in the frequency converter control system of the present invention.
Fig. 6 is a structural relationship diagram of the encoder detection module in the frequency converter control system of the present invention.
Fig. 7 is a structural relationship diagram of the interface module in the frequency converter control system of the present invention.
Fig. 8 is a structural diagram of the communication extension module in the frequency converter control system of the present invention.
Fig. 9 is a structural diagram of the operation panel module in the frequency converter control system of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example one
As shown in fig. 1, fig. 4 to fig. 7 and fig. 9, the frequency converter control system of the present invention includes a main control module 10, a power unit control module 20, an encoder detection module 30, an operation panel module 40 and an interface module 50, wherein the main control module 10, the power unit control module 20, the encoder detection module 30, the operation panel module 40 and the interface module 50 are sequentially connected in serial communication. Wherein,
the main control module 10 includes a core control chip 11, a power supply circuit 19, a serial communication interface circuit 13, a field bus communication circuit 12, a digital input/output circuit 14, an analog input/output circuit 15, a relay interface circuit 18, an ethernet communication circuit 16 and a WIFI circuit 17, the core control chip 11 respectively with the serial communication interface circuit 13, the field bus communication circuit 12, the digital input/output circuit 14, the analog input/output circuit 15, the relay interface circuit 18, the ethernet communication circuit 16, the WIFI circuit 17 is in communication connection, the power supply circuit 19 provides power for the main control module 10. The main control module 10 realizes the functions of motor control algorithm, communication with an upper computer, digital quantity IO control, analog quantity IO control, communication with other modules and the like.
In other embodiments, the main control module 10 may not be provided with the ethernet communication circuit 16 and the WIFI circuit 17, which does not affect the implementation of the object of the present invention.
In other embodiments, the main control module 10 is not provided with the ethernet communication circuit 16 or the WIFI circuit 17, which does not affect the implementation of the object of the present invention.
The power unit control module 20 includes a core control chip 21, a serial communication interface circuit 22, a power circuit 25, an analog quantity sampling circuit 23, and a PWM driving circuit 24, wherein the core control chip 21 is respectively connected to the serial communication interface circuit 22, the analog quantity sampling circuit 23, and the PWM driving circuit 24 in a communication manner, and the power circuit 25 provides power for the power unit control module 20. The power cell control module 20 implements sampling of analog quantities including current, voltage, temperature, and power electronic switch PWM driving.
The encoder detection module 30 comprises a core control chip 31, a serial communication interface circuit 32, a power circuit 35, a temperature sampling circuit 34 and an encoder interface circuit 33; the core control chip 31 is respectively connected to the serial communication interface circuit 32, the temperature sampling circuit 34, and the encoder interface circuit 33 in a communication manner, and the power circuit 35 provides power for the encoder detection module 30. The encoder detection module 30 implements detection of motor speed, position and temperature.
The operation panel module 40 includes a core control chip 41, a serial communication interface circuit 42, a power circuit 45, a display circuit 43 and a key detection circuit 44, the core control chip 41 is respectively connected to the serial communication interface circuit 42, the display circuit 43 and the key detection circuit 44 in a communication manner, and the power circuit 45 provides power for the operation panel module 40. The operation panel module 40 realizes human-computer interaction.
The interface module 50 includes a core control chip 51, a serial communication interface circuit 52, a power circuit 56, a digital input/output circuit 53, an analog input/output circuit 54, and a relay interface circuit 55, the core control chip 51 is respectively connected to the serial communication interface circuit 52, the digital input/output circuit 53, the analog input/output circuit 54, and the relay interface circuit 55 in a communication manner, and the power circuit 56 provides power for the interface module 50. The interface module 50 implements digital, analog processing and relay control.
In other embodiments, the encoder detection module 30, the operation panel module 40 and the interface module 50 are not provided, and some use control requirements of the frequency converter can be met.
In other embodiments, the operation panel module 40 and the interface module 50 are not provided, and some use control requirements of the frequency converter can be met.
In other embodiments, the interface module 50 is not provided, and some use control requirements of the frequency converter can be met.
Example two
As shown in fig. 2, 4 to 7, and 9, the inverter control system of the present embodiment includes a main control module 10, a power unit control module 20, an encoder detection module 30, an operation panel module 40, and an interface module 50. The power unit control module 20, the encoder detection module 30, the operation panel module 40 and the interface module 50 are respectively connected with the main control module 10 in serial communication.
The structure of each module is as described in the first embodiment.
In other embodiments, the operation panel module 40 and the interface module 50 are not provided, and some use control requirements of the frequency converter can be met.
In other embodiments, the interface module 50 is not provided, and some use control requirements of the frequency converter can be met.
EXAMPLE III
As shown in fig. 3 and fig. 4 to fig. 8, the frequency converter control system of the present embodiment includes a main control module 10, a power unit control module 20, a communication extension module 60, an encoder detection module 30, and an interface module 50, wherein the main control module 10, the power unit control module 20, and the communication extension module 60 are sequentially connected in a serial communication manner, and the communication extension module 60 is respectively connected in a serial communication manner with the encoder detection module 30 and the interface module 50.
The communication extension module 60 comprises a core control chip 61, a serial communication interface circuit 62 and a power circuit 63; the core control chip 61 is communicatively connected to the serial communication interface circuit 62, and the power circuit 63 provides power to the communication expansion module 60. The communication extension module 60 implements communication switching.
The other module structures are as described in the first embodiment.
Example four
The frequency converter control system of the embodiment includes a main control module 10, a power unit control module 20, a communication extension module 60, an encoder detection module 30, an operation panel module 40, and an interface module 50, wherein the main control module 10, the power unit control module 20, and the communication extension module 60 are sequentially connected in serial communication, and the communication extension module 60 is respectively connected in serial communication with the encoder detection module 30, the operation panel module 40, and the interface module 50.
The structure of each module is as described in the first and third embodiments.

Claims (9)

1. A frequency converter control system is characterized by comprising a main control module and a power unit control module;
the main control module comprises a core control chip A, a power supply circuit A, a serial communication interface circuit A, a field bus communication circuit, a digital input and output circuit A, an analog input and output circuit A and a relay interface circuit A, wherein the core control chip A is respectively in communication connection with the serial communication interface circuit A, the field bus communication circuit, the digital input and output circuit A, the analog input and output circuit A and the relay interface circuit A, and the power supply circuit A provides power for the main control module; the main control module realizes a motor control algorithm, communication with an upper computer, digital quantity IO control, analog quantity IO control and communication with other modules;
the power unit control module comprises a core control chip B, a serial communication interface circuit B, a power circuit B, an analog quantity sampling circuit and a PWM (pulse-width modulation) drive circuit; the core control chip B is respectively in communication connection with the serial communication interface circuit B, the analog quantity sampling circuit and the PWM driving circuit, and the power supply circuit B provides power supply for the power unit control module; the power unit control module realizes analog quantity sampling including current, voltage and temperature and PWM driving of a power electronic switch;
The main control module is connected with the power unit control module through serial communication.
2. The frequency converter control system of claim 1, comprising an encoder detection module, the encoder detection module comprising a core control chip C, a serial communication interface circuit C, a temperature sampling circuit, a power supply circuit C, an encoder interface circuit; the core control chip C is respectively in communication connection with the serial communication interface circuit C, the temperature sampling circuit and the encoder interface circuit, and the power supply circuit C provides power supply for the encoder detection module; the encoder detection module realizes the detection of the rotating speed, the position and the temperature of the motor;
the encoder detection module is connected with the power unit control module through serial communication or connected with the main control module through serial communication.
3. The frequency converter control system according to claim 2, comprising an interface module, the interface module comprising a core control chip D, a serial communication interface circuit D, a power supply circuit D, a digital input output circuit D, an analog input output circuit D, a relay interface circuit D; the core control chip D is respectively in communication connection with the serial communication interface circuit D, the digital quantity input and output circuit D, the analog quantity input and output circuit D and the relay interface circuit D, the power supply circuit D provides power for the interface module, and the interface module realizes digital quantity, analog quantity processing and relay control;
The main control module, the power unit control module, the encoder detection module and the interface module are sequentially connected through serial communication, or the power unit control module, the encoder detection module and the interface module are respectively connected with the main control module through serial communication.
4. The frequency converter control system according to claim 3, comprising an operation panel module, the operation panel module comprising a core control chip E, a serial communication interface circuit E, a power supply circuit E, a display circuit and a key detection circuit; the core control chip E is respectively in communication connection with the serial communication interface circuit E, the display circuit and the key detection circuit, the power supply circuit E provides power for the operation panel module, and the operation panel module realizes the human-computer interaction function;
the main control module, the power unit control module, the encoder detection module, the operation panel module and the interface module are sequentially connected through serial communication, or the power unit control module, the encoder detection module, the operation panel module and the interface module are respectively connected with the main control module through serial communication.
5. The frequency converter control system according to claim 3, comprising a communication extension module, wherein the communication extension module comprises a core control chip F, a serial communication interface circuit F, and a power supply circuit F; the core control chip F is in communication connection with the serial communication interface circuit F, the power supply circuit F provides power for the communication expansion module, and the communication expansion module realizes communication switching;
The main control module, the power unit control module and the communication expansion module are sequentially connected through serial communication, and the communication expansion module is respectively connected with the encoder detection module and the interface module through serial communication.
6. The frequency converter control system according to claim 4, comprising a communication extension module, wherein the communication extension module comprises a core control chip F, a serial communication interface circuit F, and a power supply circuit F; the core control chip F is in communication connection with the serial communication interface circuit F, the power supply circuit F provides power for the communication expansion module, and the communication expansion module realizes communication switching;
the main control module, the power unit control module and the communication expansion module are sequentially connected through serial communication, and the communication expansion module is respectively connected with the encoder detection module, the operation panel module and the interface module through serial communication.
7. The inverter control system according to one of claims 1 to 6, wherein the master control module comprises an Ethernet communication circuit communicatively connected to the core control chip A.
8. The frequency converter control system of one of claims 1 to 6, wherein said master control module comprises a WIFI circuit communicatively connected to said core control chip A.
9. The frequency converter control system according to one of claims 1 to 6, wherein the main control module comprises an Ethernet communication circuit and a WIFI circuit which are respectively in communication connection with the core control chip A.
CN201620437866.3U 2016-01-29 2016-05-14 A kind of frequency converter control system Active CN205750394U (en)

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CN2016200965998 2016-01-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107367999A (en) * 2017-08-29 2017-11-21 江苏英特康新能源科技有限公司 A kind of firefighting fan control module and its control method
CN108427367A (en) * 2018-04-03 2018-08-21 河南工业职业技术学院 A kind of frequency converter control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107367999A (en) * 2017-08-29 2017-11-21 江苏英特康新能源科技有限公司 A kind of firefighting fan control module and its control method
CN108427367A (en) * 2018-04-03 2018-08-21 河南工业职业技术学院 A kind of frequency converter control system

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