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Servo driver

A technology of servo drives and inverters, applied in the field of servo drives, can solve problems such as complex systems, high costs, and long development cycles, and achieve the effects of simple systems, low costs, and short development cycles

Inactive Publication Date: 2014-06-04
郑天江
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical defects of complex servo drive system, high cost and long development cycle in the prior art, the present invention designs a servo drive with a dual-core processor, which realizes the purpose of simplifying the system and saving costs, and at the same time Avoid the technical defects of long development cycle

Method used

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Embodiment 1

[0019] A kind of servo driver described in embodiment one, rectifier, IPM inverter, signal acquisition unit and dual-core processor are connected in sequence, provide current and voltage signal for dual-core processor; The output terminal of rectifier passes auxiliary power supply and dual-core processor The input terminals of the rectifier and auxiliary power supply are connected to each other. The power supply mode of the rectifier and the auxiliary power supply is mains power, which has low requirements for the working environment. The rectifier converts the mains power into DC with an amplitude of about 310V, and the auxiliary power supply converts the mains power into 15V required by the dual-core processor. , 3.3V and other suitable voltages, the output terminal of the dual-core processor is connected to the control terminal of the IPM inverter, so as to realize the feedback control of the dual-core processor to the IPM inverter. The IPM inverter is continuously turned on...

Embodiment 2

[0022] A kind of servo drive described in embodiment two, rectifier, IPM inverter, signal acquisition unit and dual-core processor are connected sequentially, provide current and voltage signal for dual-core processor; The output terminal of rectifier passes auxiliary power supply and dual-core processor The input terminals of the rectifier and auxiliary power supply are connected to each other. The power supply mode of the rectifier and the auxiliary power supply is mains power, which has low requirements for the working environment. The rectifier converts the mains power into DC with an amplitude of about 310V, and the auxiliary power supply converts the mains power into 15V required by the dual-core processor. , 3.3V and other suitable voltages, the output terminal of the dual-core processor is connected to the control terminal of the IPM inverter, so as to realize the feedback control of the dual-core processor to the IPM inverter. The IPM inverter is continuously turned on...

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Abstract

The invention discloses a servo driver which comprises a rectifier, an auxiliary power supply, an IPM inverter, a signal collection unit and a dual-core processor. The rectifier, the IPM inverter, the signal collection unit and the dual-core processor are sequentially connected. The output end of the rectifier is connected with the input end of the dual-core processor through the auxiliary power supply. The output end of the dual-core processor is connected with the control end of the IMP inverter. The servo driver further comprises a filter which is connected between the rectifier and the IMP inverter. The servo driver has the advantages of being simple in system, low in cost, short in development cycle, user-friendly in operation, simple in parameter adjustment, high in speed control accuracy, quick in speed dynamic response and high in power supply application rate. Dual cores, namely, the DSP and the ARM, are contained in the dual-core processor, and therefore the communication problem between a traditional dual-core scheme of the DSP and the CPLD or a traditional dual-core scheme of the DSP and the RAM is solved, the data communication speed and the data communication efficiency are greatly improved, and complexity of the servo system is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of motor drive control, in particular to a servo driver. Background technique [0002] Permanent magnet synchronous motors are often used in AC servo systems and high-performance speed control systems due to their low harmonics and high torque accuracy. The disciplines and technical fields involved in the AC servo system include motor technology, material technology, computer technology, control technology, microelectronics technology, power electronics technology, sensor technology, network technology, etc. Mechatronics products. The latest achievements in various disciplines and technical fields can be applied in modern high-performance AC servo systems soon, and even have an impact on its basic design ideas. In general, the rapid development of software, electronics, communication and semiconductor technologies has directly promoted the replacement of AC servo systems, resulting in the shortening of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/08H02P27/06
Inventor 郑天江余国民余学渭陈雷叶朋伟黄官仲黄继超
Owner 郑天江
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