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Peak shifting controlling method and device for multi-channel current

A control method and multi-channel technology, applied in the field of servo control, can solve problems such as waste and large battery volume

Inactive Publication Date: 2015-05-13
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

When designing the battery power, it should be designed according to the peak demand of the two sets, which will result in a large battery size. At the same time, in short-term heavy load applications, it is rare for two electromechanical servo mechanisms to have peak power demands at the same time. Two peak designs also cause waste

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  • Peak shifting controlling method and device for multi-channel current
  • Peak shifting controlling method and device for multi-channel current
  • Peak shifting controlling method and device for multi-channel current

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Embodiment Construction

[0064] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0065] According to the present invention, a multi-channel current peak shift control method is provided, which includes the steps of:

[0066] S1. Determine the maximum value of the three-phase phase current of each of the multiple motors at the same time;

[0067] S2. Determine whether each maximum value is greater than the rated current, and perform the following operations according to the judgment result:

[0068] S21. If the maximum value is not greater than the rated current, calculate the corresponding duty cycle of the corresponding motor according to the standard space vector algorithm, thereby controlling the three-phase phase current of the motor;

[0069] S2...

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Abstract

The invention discloses a peak shifting controlling method for multi-channel current. The method comprises the steps of respectively determining the maximum value of the three-phase current of each motor in a plurality of motors at the same time; respectively judging whether all maximum values are greater than rated current, and carrying out the following operations according to judgment results; if the maximum values are not greater than the rated current, calculating the corresponding duty ratios of the corresponding motors according to a standard space vector algorithm, so as to control the three-phase current of the motors; if the maximum values are greater than the rated current, judging whether the maximum values are greater than the rated current, judging whether the maximum values are maximum values of all motors of which numerical values are maximum, and carrying out the further operation according to the judgment results. According to the peak shifting controlling method and a peak shifting controlling device for multi-channel current provided by the invention, the demand on the peak value power of a servo power supply can be reduced greatly, and the integration and miniaturization degrees of a servo system are higher, therefore the peak shifting controlling method and the peak shifting controlling device are used for the output control of a multi-channel control driver of an electromechanical servo system.

Description

technical field [0001] The invention relates to the technical field of servo control, in particular to a multi-channel current peak shift control method and device. Background technique [0002] With the rapid rise of electromechanical servo technology, electromechanical servo systems have been widely used. The electromechanical servo system is mainly composed of a servo control driver, a servo power supply, a servo motor, and a servo actuator. In order to reduce the number of stand-alone configurations, multi-channel control drivers can be used, such as figure 1 shown. [0003] In terms of power requirements, currently one servo power battery supplies power to two (or more) electromechanical servo systems. When designing the battery power, it should be designed according to the peak demand of the two sets, which will result in a large battery size. At the same time, in short-term heavy load applications, it is rare for two electromechanical servo mechanisms to have peak ...

Claims

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Application Information

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IPC IPC(8): H02P21/00
Inventor 黄玉平朱成林郑再平贾淑绒姜迪开
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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