WO2016168970A1

WO2016168970A1 - Intelligent power drive module

Info

Publication number: WO2016168970A1
Application number: PCT/CN2015/076984
Authority: WO
Inventors: 陈亚辉; 李鹏; 高涛; 曹广忠; 张勇; 高志坚
Original assignee: 深圳大学; 深圳市中科睿智技术有限公司
Priority date: 2015-04-20
Filing date: 2015-04-20
Publication date: 2016-10-27

Abstract

Provided in the present application is an intelligent power drive module (IPDM) used for motor control. The IPDM comprises a rectification unit rectifying an input alternating current source to a direct current and transmitting the rectified direct current to an inverter unit, wherein the inverter unit is connected to a drive unit, the drive unit is connected to a signal processing unit and a brake unit, and the inverter unit is connected to an inverting current feedback unit. The drive unit is used to transmit, under the control of the signal processing unit, a switch signal to the inverter unit and the brake unit to control the brake unit to be on or off. The inverter unit inverts an input current, and outputs an alternating current to a motor. The present utility model integrates various hardware core circuits and software control algorithms for motor control and simplifies the existing motor control circuit, thus facilitating development and use for a user. The present utility model is highly integrated, reliable and small-sized, and satisfies customer needs.

Description

Manual Title: An Intelligent Power Drive Module Technical Field

[0001] The present application relates to an intelligent power drive module.

BACKGROUND OF THE INVENTION

[0003] The core technologies of motor control products include: Insulated Gate Bipolar Transistors (IGBT, Insulated Gate)

Bipolar Transistor) and its drive unit, soft start, rectifier unit, control unit and software, signal feedback interface unit, brake unit, PCB (Printed Circuit Board) layout and other technologies. Since the core technology of motor control products involves multi-faceted technology, the core technologies in the field of industrial motor control are generally in the hands of some large companies, and most small companies cannot independently produce high-quality motor control products. Most companies only have some of the technology of motor control products, and there are serious repetitive R&D investments in the industry. If these key technologies in the motor control product are integrated into one module, the bottleneck of the industry development will be completely solved, and the overall technical level of the industry can be improved and the research and development cost can be reduced.

[0004] The motor control products in the prior art usually rely on dozens or even hundreds of discrete components to build a motor control circuit or an inverter power supply. The structure is very complicated, and it is difficult for a user to develop and design, and it is extremely inconvenient to use.

SUMMARY OF THE INVENTION

The present application provides an intelligent power driving module for controlling a motor, which simplifies the existing motor control circuit, facilitates bursting and use, and has high integration and reliability.

According to a first aspect of the present application, an intelligent power drive module for a motor control, a rectification unit, a brake unit, an inverter unit, a drive unit, an inverter current feedback unit, and a signal processing unit are provided. The rectifying unit is configured to rectify an alternating current power input into the smart power driving module into a direct current to provide an operating current to the motor; the rectifying unit is connected to the braking unit and the inverting unit to the braking unit And the inverter unit is configured to provide a power source; the inverter unit is configured to perform an inverter process on the DC current output by the rectifier unit to generate a sinusoidal current and output the same to the motor; and the braking unit is configured to eliminate the motor a surge voltage generated after the inverter unit is inverted; the drive list Connected to the signal processing unit, the inverting unit, and the braking unit, respectively, for transmitting a signal to the braking unit and the inverting unit under the control of the signal processing unit. Controlling the braking unit and the turning on and off of the inverter unit; the inverter current feedback unit is respectively connected to the inverter unit and the signal processing unit, and configured to output current to the inverter unit Sampling is performed and fed back to the signal processing unit.

[0008] Optionally, the inverter current feedback unit is a current sensor.

[0009] Optionally, the inverter unit includes at least six IGBTs.

[0010] Optionally, the inverter unit includes six IGBTs, and the inverter unit performs three-phase inverse processing on the input current.

[0011] Optionally, the inverter unit includes eight IGBTs, and the inverter unit performs two-phase inverse processing on the input current.

[0012] Optionally, further comprising: a storage unit connected to the signal processing unit; the storage unit storing a control algorithm and user configuration parameters of at least one motor, for writing information to the signal processing unit or Receive user configuration parameters for external input.

[0013] Optionally, further comprising: a control algorithm library connected to the signal processing unit; the control algorithm library storing at least one control algorithm for controlling the motor; the signal processing unit is configured to read The control algorithm library is controlled to control the motor.

[0014] Optionally, the method further includes: a temperature detecting unit connected to the signal processing unit, configured to measure a temperature of the smart power driving module, and transmit to the signal processing unit.

[0015] Optionally, the method further includes: a position feedback interface unit connected to the signal processing unit, configured to detect a phase of the motor and transmit the signal to the signal processing unit.

[0016] Optionally, the position feedback interface unit is an absolute value encoder, a resolver or a line incremental encoder.

[0017] The utility model integrates the core unit of a plurality of intelligent power driving modules, simplifies the existing motor control circuit, is convenient for the user to burst and use, and has high integration degree and reliability, small volume, convenient use, and satisfaction. Customer's use needs.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic structural view of an intelligent power driving module of the present invention; 2 is another schematic structural view of the intelligent power driving module of the present invention.

DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] In the embodiment of the present application, an intelligent power driving module is provided for controlling a motor, and the device integrates a core unit of the motor control into a module, and the package forms an independent unit, which can simplify the present Some motor control circuits are convenient for bursting and use, and have high integration and reliability.

[0024] Embodiment 1:

Please refer to FIG. 1, FIG. 1 is a schematic structural diagram of an intelligent power driving module according to Embodiment 1 of the present invention. As shown in Figure 1, an intelligent power drive module (IPDM) can include:

The rectification unit 10, the brake unit 20, the inverter unit 30, the drive unit 40, the inverter current feedback unit 50, and the signal processing unit 60.

[0027] The rectifying unit 10 is configured to rectify the AC power input into the intelligent power driving module into a direct current, and the motor provides an operating current.

[0028] The rectifying unit 10 is connected to the braking unit 20 and the inverter unit 30, and supplies power to the braking unit 20 and the inverter unit 30. The inverter unit 30 is configured to invert the DC current output from the rectifying unit 10 to generate a sinusoidal current and output it to the motor. The braking unit 20 is configured to eliminate a surge voltage generated after the motor is inverted by the inverter unit 30.

[0029] Specifically, the braking unit 20, which cooperates with the external braking resistor of the module, can absorb the surge voltage generated by the filtered DC power source, protect the IGBT and the capacitor.

[0030] The driving unit 40 is connected to the signal processing unit 60, the inverting unit 30, and the braking unit 20, respectively, for transmitting the switching signal to the braking unit 20 and the inverting unit 30 under the control of the signal processing unit 60. The control unit 20 and the inverter unit 30 are turned on and off.

[0031] The inverter current feedback unit 50 is connected to the inverter unit 30 and the signal processing unit 60, respectively, for sampling the current output by the inverter unit 30 and feeding back to the signal processing unit 60.

[0032] The rectifying unit 10 rectifies the AC power input into a direct current to achieve soft start of the motor.

[0033] It is worth noting that the signal processing unit 60 is further configured to receive a communication signal externally input to the outside of the intelligent power driving module. Realize the signal interaction between the intelligent power drive module and other external modules and the motor, The interactive control of the external device and the intelligent power driving module of the embodiment is facilitated. The intelligent power driving module of the embodiment of the present application is convenient to use.

[0034] In the embodiment of the present invention, the inverter unit 30 includes at least six IGBTs. In a preferred embodiment, the inverter unit 30 includes six IGBTs, and the inverter unit 30 performs three-phase inverter processing on the input current. In another preferred embodiment, the inverter unit 30 includes eight IGBTs, and the inverter unit 30 performs a two-phase inverter processing on the input current. The driving unit 40 is responsible for controlling the turning on and off of the inverter unit 30. Specifically, the driving unit 40 needs to turn off the inverter unit 30 at the control of the signal processing unit 60, and control each IGBT to be turned off, at the signal processing unit 60. The control needs to pass through the inverter unit 30吋 to control the IGBTs to pass through. Moreover, the driving unit 40 strictly controls the dead zone to avoid conduction with the same arm.

[0035] In the embodiment of the present invention, the inverter current feedback unit is a current sensor. Sampling is performed in the IGBT loop to reduce the distortion rate of the current signal.

[0036] The intelligent power driving module for motor control provided by the present application includes a rectifying unit that rectifies an input alternating current power source into a direct current power, and the rectifying unit transmits the rectified direct current power to the inverter unit, and the inverter unit and the inverter unit The drive unit is connected, the drive unit is connected to the signal processing unit, the drive unit is also connected to the brake unit, and the inverter unit is connected to the inverter current feedback unit. The driving unit is configured to transmit the switching signal to the inverter unit and the braking unit under the control of the signal processing unit to control the turning on and off of the braking unit. The inverter unit inverts the input DC current and outputs an AC current to the motor. The utility model integrates the core unit and control algorithm of various motor control devices, simplifies the existing motor control circuit, is convenient for the user to burst and use, and has high integration and reliability, small size, convenient use, and satisfying customers. Demand for use.

[0037] Embodiment 2:

Please refer to FIG. 2. FIG. 2 is a schematic structural view of a device according to Embodiment 2 of the present invention. As shown in FIG. 2, an intelligent power drive module (IPDM) is similar to the intelligent power drive module (IPDM) in the first embodiment. The IPDM may further include:

[0039] A memory unit 70 coupled to the signal processing unit 60.

[0040] The storage unit 70 stores control algorithms and user configuration parameters of at least one of the motors for writing information to the signal processing unit or receiving externally input user configuration parameters.

[0041] The storage unit 70 and the signal processing unit 60 can exchange information. Signal processing unit 60 can be from a storage unit 70 reads the required algorithm or configuration parameters to control the intelligent power drive module. At the same time, the customer can perform secondary bursting on the configuration parameters of the intelligent power driving module of the embodiment, and the updated control algorithm and configuration parameters can be written into the storage unit 70.

[0042] The apparatus of the embodiment of the present invention may further include: a control algorithm library 80 connected to the signal processing unit 60.

The control algorithm library store 80 has at least one control algorithm for controlling the motor. Thereafter, the signal processing unit 60 is configured to read the control algorithm of the control algorithm library 80 to control the motor. Specifically, the control algorithm library 80 stores control algorithms corresponding to the AC synchronous servo motor, the asynchronous AC motor, the DC brushless motor, and the step motor. Therefore, the intelligent power driving module of the embodiment can control the AC synchronous servo motor, the asynchronous AC motor, the DC brushless motor, and the stepping motor. Different control algorithms can be easily invoked using 吋.

The apparatus of the embodiment of the present invention may further include: a temperature detecting unit 90 connected to the signal processing unit 60 for measuring the temperature of the intelligent power driving module and the motor, and transmitting to the signal processing unit 60. The signal processing unit 60 can actually adjust the drive current output, the frequency of the output carrier, and communicate the temperature information to other devices by communication.

The device of the embodiment of the present invention may further include: a position feedback interface unit 100 connected to the signal processing unit 60 for detecting the phase of the motor and transmitting it to the signal processing unit 60.

[0045] Preferably, the position feedback interface unit 100 is an absolute value encoder, a resolver or a line incremental encoder. More specifically, it supports 17-bit, 22-bit, 23-bit absolute encoders, resolvers, or 400-line to 10000-line incremental encoders.

[0046] The above is a further detailed description of the present invention in conjunction with the specific embodiments, and it is not intended that the specific embodiments of the present invention are limited to the description. For those skilled in the art to which the present invention pertains, a number of simple derivations or substitutions may be made without departing from the inventive concept.

[0047]

technical problem

Problem solution

Advantageous effects of the invention

Claims

Claim

[Claim 1] An intelligent power driving module, comprising:

a rectifying unit, a braking unit, an inverting unit, a driving unit, an inverter current feedback unit, and a signal processing unit;

The rectifying unit is configured to rectify the AC power input into the intelligent power driving module into a direct current to provide an operating current for the motor;

The rectifying unit is connected to the braking unit and the inverting unit, and supplies power to the braking unit and the inverting unit; the inverting unit is configured to output a DC current to the rectifying unit Performing an inverter process to generate a sinusoidal current and outputting to the motor; the braking unit is configured to eliminate a surge voltage generated by the motor after being inverted by the inverter unit; the driving unit and the signal processing unit respectively The inverting unit and the braking unit are connected to transmit a switching signal to the braking unit and the inverting unit under the control of the signal processing unit, and control the braking unit and the Turning on and off the inverter unit;

The inverter current feedback unit is respectively connected to the inverter unit and the signal processing unit, and is configured to sample the current output by the inverter unit and feed back to the signal processing unit.

[Claim 2] The intelligent power drive module according to claim 1, wherein the inverter power and the feedback unit are current sensors.

[Claim 3] The intelligent power driving module according to claim 1, wherein the inverter unit includes at least six IGBTs.

[Claim 4] The intelligent power driving module according to claim 3, wherein the inverter unit is six IGBT turns, and the inverter unit is configured to perform three-phase inverter processing on an input current.

[Claim 5] The intelligent power driving module according to claim 3, wherein the inverter unit is eight IGBT turns, and the inverter unit is configured to perform two-phase inverter processing on an input current.

The intelligent power driving module according to any one of claims 1 to 4, further comprising: a storage unit connected to the signal processing unit; the storage unit configured to store at least one Motor control algorithm and user configuration parameters, and Interacting signals with the signal processing unit, writing information to the signal processing unit or receiving externally input user configuration parameters.

The intelligent power driving module according to any one of claims 1 to 4, further comprising: a control algorithm library connected to the signal processing unit; the control algorithm library storing at least A control algorithm for controlling a motor; the signal processing unit is configured to read a control algorithm of the control algorithm library to control a motor.

The intelligent power driving module according to any one of claims 1 to 4, further comprising: a temperature detecting unit connected to the signal processing unit, configured to measure an intelligent power driving module Temperature and transmitted to the signal processing unit.

The intelligent power driving module according to any one of claims 1 to 4, further comprising: a position feedback interface unit connected to the signal processing unit, configured to detect a phase of the motor and Transfer to the signal processing unit.

[Claim 10] The intelligent power driving module according to claim 9, wherein the position feedback interface unit is an absolute value encoder, a resolver or a line incremental encoder.