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Voltage vector setting method for variable frequency speed control of high frequency spindle

A technology of high-speed electric spindle and voltage vector, which is applied to the control of generators, motor generators, electromechanical brakes, etc., can solve the problems of long algorithm time, high-speed electric spindle control effect and reliability decline, and achieve good control effect Effect

Active Publication Date: 2015-09-23
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to achieve precise control, the above method needs to add a flux observer in the speed control system to observe the position of the spindle rotor, which makes the algorithm time longer, and the control effect and reliability of the high-speed electric spindle are significantly reduced

Method used

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  • Voltage vector setting method for variable frequency speed control of high frequency spindle
  • Voltage vector setting method for variable frequency speed control of high frequency spindle
  • Voltage vector setting method for variable frequency speed control of high frequency spindle

Examples

Experimental program
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Effect test

Embodiment 1

[0056] The voltage vector given method for the frequency conversion speed regulation control of the high-speed motorized spindle in this embodiment is hereinafter referred to as the voltage vector given method, and the steps are as follows:

[0057] A. The device and operation used in the operation of the voltage vector given method:

[0058] The device used for the voltage vector given method of frequency conversion speed regulation control of high-speed electric spindle, including speed given module 1, DSP control module 2, power circuit 3, high-speed electric spindle 4, bus power supply module 6 and drive control power supply module 5, Among them, the drive control power supply module 5 supplies power for the speed setting module 1, the DSP control module 2 and the power circuit 3, and the bus power supply module 6 provides reversible direct current for the power circuit 3; the speed setting module 1, the DSP control module 2 , the power circuit 3 and the high-speed electri...

Embodiment 2

[0079] The voltage vector given method for the frequency conversion speed regulation control of the high-speed motorized spindle in this embodiment is hereinafter referred to as the voltage vector given method, and the steps are as follows:

[0080] A. The device and operation used in the operation of the voltage vector given method:

[0081] With embodiment 1;

[0082] B. Operation steps of the voltage vector given method:

[0083] The first step is to determine the stator voltage amplitude:

[0084] With embodiment 1;

[0085] The second step is to determine the speed n of the high-speed electric spindle s The relationship with the number m of stator space voltage vectors:

[0086] In addition to the set speed n of high-speed electric spindle running s When being 15001-30000r / min, the selected stator space voltage vector number m is 24, and other is the same as embodiment 1;

[0087] The third step is to determine the stator space voltage vector:

[0088] Except that ...

Embodiment 3

[0094] The voltage vector given method for the frequency conversion speed regulation control of the high-speed motorized spindle in this embodiment is hereinafter referred to as the voltage vector given method, and the steps are as follows:

[0095] A. The device and operation used in the operation of the voltage vector given method:

[0096] With embodiment 1;

[0097] B. Operation steps of the voltage vector given method:

[0098] The first step is to determine the stator voltage amplitude:

[0099] With embodiment 1;

[0100] The second step is to determine the speed n of the high-speed electric spindle s The relationship with the number m of stator space voltage vectors:

[0101] In addition to the set speed n of high-speed electric spindle running s When it is 1000~15000, the selected stator space voltage vector number m is 48, other is the same as embodiment 1;

[0102] The third step is to determine the stator space voltage vector:

[0103] Except that when the n...

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Abstract

The invention relates to a voltage vector setting method for the variable frequency speed control of a high frequency spindle. A device for running the voltage vector setting method comprises a rotating speed setting module, a DSP (Digital Signal Processing) control module, a power circuit, the high frequency spindle, a bus power supply module and a driving control power supply module, wherein the driving control power supply module is used for supplying power to the rotating speed setting module, the DSP control module and the power circuit; the bus power supply module is used for supplying reversible direct current to the power circuit; and the rotating speed setting module, the DSP control module, the power circuit and the high frequency spindle are connected in sequence through a lead. The voltage vector setting method comprises the following steps: determining a stator voltage amplitude; determining the relation between the running rotating speed ns of the high frequency spindle and a stator space voltage vector quantity m; determining stator space voltage vectors; listing a control table of duty ratio relations among three-phase SVPWM (Space Vector Pulse Width Modulation) signals corresponding to the stator space voltage vectors; and implementing setting of the voltage vectors for the variable frequency speed control of the high frequency spindle.

Description

technical field [0001] The technical solution of the present invention relates to a motor control technology, in particular to a voltage vector given method for frequency conversion speed regulation control of a high-speed electric spindle. technical background [0002] The electric spindle with a speed exceeding 10000r / min is usually called a high-speed electric spindle (High Frequency Spindle), which has the characteristics of high speed, stepless transmission and zero transmission chain. Compared with ordinary spindles, it has great advantages in power transmission performance and dynamic balance ability. And with the development of power electronics technology, material science, digital electronics technology and new control theory, high-speed electric spindles show broad application prospects in the field of high-performance servo drives. Currently, there are three commonly used spindle control methods: constant voltage-frequency ratio control, vector control and direc...

Claims

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Application Information

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IPC IPC(8): H02P21/14H02P27/08
Inventor 董砚孙鹤旭闫旭郑易荆锴郭贤朝苑晓杰
Owner HEBEI UNIV OF TECH