CN208955941U - A kind of 1E grades of frequency conversion cabinet control system - Google Patents
A kind of 1E grades of frequency conversion cabinet control system Download PDFInfo
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- CN208955941U CN208955941U CN201821311287.XU CN201821311287U CN208955941U CN 208955941 U CN208955941 U CN 208955941U CN 201821311287 U CN201821311287 U CN 201821311287U CN 208955941 U CN208955941 U CN 208955941U
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- commutation inversion
- inversion module
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Abstract
The utility model discloses a kind of 1E grades of frequency conversion cabinet control systems, including main control chip, upconversion operation device, digital-to-analog signal module, serial communication module, pin-saving chip, commutation inversion module and motor, the upconversion operation device, digital-to-analog signal module, serial communication module, pin-saving chip and commutation inversion module with main control chip communication connection, the power supply terminal of the commutation inversion module main line is connected to power supply by three-phase input binding post, the load wiring terminal of commutation inversion module main line is connected to motor by three-phase output wiring terminal.A kind of 1E grades of frequency conversions cabinet control system provided by the utility model, outer hardware passes through corresponding interface and main control chip communication connection, by the output frequency of the 1E grades of frequency conversion cabinets of control of main control chip to control blower and pump, it ensure that the accuracy of control, meet the operational requirements of user.
Description
[technical field]
The utility model relates to the technical field of frequency conversion cabinet, in particular to a kind of 1E grades of frequency conversion cabinet control system.
[background technique]
Frequency conversion cabinet is the complete frequency conversion speed-adjusting system of seriation, covers power of motor section 0.75kW-400kW.Function is stronger
Greatly, the application that nuclear power plant's blower can be met extensively, pump class.Product frequency-variable module part is using standardization, modularized design, structure
Compact, versatility, interchangeability are stronger.Frequency conversion cabinet general function can be divided into motor frequency conversion control and motor industrial frequency control.Motor
Frequency control part is mainly exported by three phase mains filtering, three phase mains rectification, DC power supply filtering, DC inversion exchange, is handed over
Stream output filtering, this 6 module compositions of control section, model is cross-straight-intersection voltage-type frequency conversion model.The model is current
It is most widely used and reliable low-voltage variable frequency model.1E grades of frequency conversion cabinets are mainly used for the control of nuclear power plant's blower and pump.
The utility model proposes a kind of 1E grades of frequency conversion cabinet control systems, by the output frequency for controlling 1E grades of frequency conversion cabinets
To control blower and pump, to meet the use demand of client.
[utility model content]
The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, provide a kind of 1E grades of frequency conversion cabinet control system
System is intended to the connection by frequency conversion cabinet software systems and outer hardware, controls the output frequency of 1E grades of frequency conversion cabinets to control
Blower and pump processed, to meet the use demand of client.
To achieve the above object, the utility model proposes a kind of 1E grades of frequency conversion cabinet control system, including main control chip,
Upconversion operation device, digital-to-analog signal module, serial communication module, pin-saving chip, commutation inversion module and motor, it is described
Upconversion operation device, digital-to-analog signal module, serial communication module, pin-saving chip and commutation inversion module are and main control chip
The power supply terminal of communication connection, the commutation inversion module main line is connected to power supply by three-phase input binding post,
The load wiring terminal of commutation inversion module main line is connected to motor by three-phase output wiring terminal.
Preferably, being provided with the bus for acquiring the commutation inversion module busbar voltage on the main control chip
Voltage acquisition interface, and pass through the busbar voltage acquisition interface and acquisition commutation inversion module communication connection.
Preferably, being provided with the temperature acquisition for acquiring the commutation inversion module temperature on the main control chip
Interface, and pass through the temperature acquisition interface and acquisition commutation inversion module communication connection.
Preferably, being provided with radiator on the commutation inversion module, it is provided with and is used on the main control chip
The fan control interface that fan is run on the radiator is controlled, and passes through the wind on the fan control interface and radiator
Fan communication connection.
Preferably, being provided with the phase electricity for acquiring biphase current in three-phase output wiring terminal on the main control chip
Acquisition interface is flowed, and is electrically connected by two-phase in the phase current acquisition interface and three-phase output wiring terminal.
It is acquired preferably, being provided on the main control chip with the TZ interrupt signal of commutation inversion module communication connection
Interface sends a level signal to TZ interrupt signal acquisition interface when overcurrent, over-voltage fault occur for commutation inversion module, main
After control chip collects, the output of commutation inversion module main line is cut off immediately.
Preferably, the driving signal output being provided on the main control chip with commutation inversion module communication connection connects
Mouthful, and the PWM wave modulated can be exported by the driving signal output interface, needed for control commutation inversion module output
Three-phase electricity controls motor operation.
It is connect preferably, being additionally provided on the main control chip with the upconversion operation device of upconversion operation device communication connection
Mouthful, the digital-to-analog signal interface with the communication connection of digital-to-analog signal module connects with the serial communication of serial communication module communication connection
Mouthful, the data memory interface with pin-saving chip communication connection.
Preferably, the model AT24C512-10PI of the pin-saving chip, data storage capacity 64K is described
Main control chip by I2C bus to pin-saving chip storing data and read data.
Preferably, when the main control chip every time to pin-saving chip storing data when, can all store double number
According to, then carry out repeatedly comparing the correctness to ensure storing data；When the main control chip is read from pin-saving chip every time
Access according to when, can all read double data, then carry out repeatedly compare with ensure read data correctness.
The utility model has the beneficial effects that compared with prior art, a kind of 1E grades of frequency conversion cabinet provided by the utility model
Control system, outer hardware pass through 1E grades of frequency changers of control of main control chip by corresponding interface and main control chip communication connection
The output frequency of cabinet ensure that the accuracy of control, meet the operational requirements of user to control blower and pump.
The feature and advantage of the utility model will be described in detail by embodiment combination attached drawing.
[Detailed description of the invention]
Fig. 1 is a kind of block diagram of 1E grades of frequency conversion cabinet control system of the utility model embodiment.
[specific embodiment]
To make the objectives, technical solutions and advantages of the present invention clearer, below by accompanying drawings and embodiments,
The present invention will be further described in detail.However, it should be understood that specific embodiment described herein is only used to solve
The utility model is released, the range being not intended to limit the utility model.In addition, in the following description, being omitted to known features
With the description of technology, to avoid the concept for unnecessarily obscuring the utility model.
Refering to fig. 1, the utility model embodiment provides a kind of 1E grades of frequency conversion cabinet control system, including main control chip 1, change
Frequency operator 2, digital-to-analog signal module 3, serial communication module 4, pin-saving chip 5, commutation inversion module 6 and motor 7, institute
Upconversion operation device 2, digital-to-analog signal module 3, serial communication module 4, pin-saving chip 5 and the commutation inversion module 6 stated with
1 communication connection of main control chip, the power supply terminal of 6 main line of commutation inversion module by three-phase input binding post with
The load wiring terminal of power supply connection, 6 main line of commutation inversion module is connect by three-phase output wiring terminal with motor 7.
Further, the mother for acquiring 6 busbar voltage of commutation inversion module is provided on the main control chip 1
Line voltage acquisition interface 11, and communicated to connect by the busbar voltage acquisition interface 11 and acquisition commutation inversion module 6；It is described
Main control chip 1 on be provided with temperature acquisition interface 12 for acquiring 6 temperature of commutation inversion module, and pass through the temperature
It spends acquisition interface 12 and acquisition commutation inversion module 6 communicates to connect.
Further, it is provided with radiator 8 on the commutation inversion module 6, is arranged on the main control chip 1 useful
In the fan control interface 13 for controlling fan operation on the radiator 8, and pass through the fan control interface 13 and heat dissipation
Fan communication connection on device 8.
Further, the phase for acquiring biphase current in three-phase output wiring terminal is provided on the main control chip 1
Current acquisition interface 14, and be electrically connected by two-phase in the phase current acquisition interface 14 and three-phase output wiring terminal.
Further, the TZ interrupt signal communicated to connect with commutation inversion module 6 is provided on the main control chip 1 to adopt
Collect interface 15, sends a level to TZ interrupt signal acquisition interface 15 when overcurrent, over-voltage fault occur for commutation inversion module 6
Signal after main control chip 1 collects, cuts off the output of 6 main line of commutation inversion module immediately.
Further, the driving signal communicated to connect with commutation inversion module 6 is provided on the main control chip 1 to export
Interface 16, and the PWM wave modulated can be exported by the driving signal output interface 16, control commutation inversion module 6 is defeated
Required three-phase electricity runs out to control motor 7.
Further, the upconversion operation device communicated to connect with upconversion operation device 2 is additionally provided on the main control chip 1 to connect
Mouthful, the digital-to-analog signal interface communicated to connect with digital-to-analog signal module 3, the serial communication communicated to connect with serial communication module 4
Interface, the data memory interface communicated to connect with pin-saving chip 5.
In the utility model embodiment, the model AT24C512-10PI of the pin-saving chip 5, data are deposited
Capacity 64K is stored up, the main control chip 1 to 5 storing data of pin-saving chip and reads data by I2C bus, when described
Main control chip 1 every time to 5 storing data of pin-saving chip when, can all store double data, then repeatedly compare with true
Protect the correctness of storing data；When the main control chip 1 reads data from pin-saving chip 5 every time, can all read double
Part data, then repeatedly compare to ensure to read the correctness of data.
A kind of 1E grades of frequency conversion cabinet control system of the utility model, outer hardware are logical by corresponding interface and main control chip 1
News connection, controls blower and pump by the output frequency of the 1E grades of frequency conversion cabinets of control of main control chip 1, ensure that control
Accuracy meets the operational requirements of user.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modification, equivalent replacement or improvement etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (6)
1. a kind of 1E grades of frequency conversion cabinet control system, it is characterised in that: including main control chip (1), upconversion operation device (2), D/A
Signaling module (3), serial communication module (4), pin-saving chip (5), commutation inversion module (6) and motor (7), the change
Frequency operator (2), digital-to-analog signal module (3), serial communication module (4), pin-saving chip (5) and commutation inversion module (6)
With main control chip (1) communication connection, the power supply terminal of the commutation inversion module (6) main line passes through three-phase input
Binding post connects to power supply, and the load wiring terminal of commutation inversion module (6) main line passes through three-phase output wiring terminal and motor
(7) it connects.
2. a kind of 1E grades of frequency conversion cabinet control system as described in claim 1, it is characterised in that: the main control chip (1)
On be provided with busbar voltage acquisition interface (11) for acquiring the commutation inversion module (6) busbar voltage, and by described
Busbar voltage acquisition interface (11) and acquisition commutation inversion module (6) communication connection.
3. a kind of 1E grades of frequency conversion cabinet control system as described in claim 1, it is characterised in that: the main control chip (1)
On be provided with temperature acquisition interface (12) for acquiring the commutation inversion module (6) temperature, and pass through the temperature acquisition
Interface (12) and acquisition commutation inversion module (6) communication connection.
4. a kind of 1E grades of frequency conversion cabinet control system as described in claim 1, it is characterised in that: the commutation inversion module
(6) it is provided on radiator (8), is provided on the main control chip (1) and is run for controlling fan on the radiator (8)
Fan control interface (13), and pass through the fan on the fan control interface (13) and radiator (8) and communicate to connect.
5. a kind of 1E grades of frequency conversion cabinet control system as described in claim 1, it is characterised in that: the main control chip (1)
On be provided with phase current acquisition interface (14) for acquiring biphase current in three-phase output wiring terminal, and pass through the phase electricity
Two-phase in acquisition interface (14) and three-phase output wiring terminal is flowed to be electrically connected.
6. a kind of 1E grades of frequency conversion cabinet control system as described in claim 1, it is characterised in that: the main control chip (1)
On be provided with commutation inversion module (6) communication connection TZ interrupt signal acquisition interface (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821311287.XU CN208955941U (en) | 2018-08-15 | 2018-08-15 | A kind of 1E grades of frequency conversion cabinet control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821311287.XU CN208955941U (en) | 2018-08-15 | 2018-08-15 | A kind of 1E grades of frequency conversion cabinet control system |
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| Publication Number | Publication Date |
|---|---|
| CN208955941U true CN208955941U (en) | 2019-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821311287.XU Active CN208955941U (en) | 2018-08-15 | 2018-08-15 | A kind of 1E grades of frequency conversion cabinet control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067301A (en) * | 2018-08-15 | 2018-12-21 | 浙江佳乐科仪股份有限公司 | A kind of 1E grades of frequency conversion cabinet control system |
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2018
- 2018-08-15 CN CN201821311287.XU patent/CN208955941U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067301A (en) * | 2018-08-15 | 2018-12-21 | 浙江佳乐科仪股份有限公司 | A kind of 1E grades of frequency conversion cabinet control system |
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