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Common direct current bus permanent magnet synchronous spinning machine control system

A common DC bus, permanent magnet synchronization technology, applied in the control system, motor control, control of multiple DC motors, etc., can solve the problems of exchange efficiency, energy exchange, etc., to improve the control effect, mechanical energy and electrical energy conversion transmission The effect of balance improvement, process smoothing of motor voltage increase or decrease

Pending Publication Date: 2022-07-22
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are problems such as the inability to exchange energy immediately, the exchange efficiency needs to be improved, and only one motor can be driven for industrial production operations.

Method used

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  • Common direct current bus permanent magnet synchronous spinning machine control system
  • Common direct current bus permanent magnet synchronous spinning machine control system

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Embodiment Construction

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below.

[0019] like figure 1 As shown, the common DC bus permanent magnet synchronous spinning machine control system of the present invention includes a reversible rectifier unit, a DC bus, a servo driver, a high-speed reciprocating motor and a general controller. The power input end is powered by two DC busbars drawn from the reversible rectifier unit. One end of the 96 servo drives is connected to the DC busbar, the other end is connected to the high-speed reciprocating motor, and the main controller is also connected to the servo drive.

[0020] The reversible rectifier unit can convert the AC voltage into a stable DC voltage, and its power part is composed of two anti-parallel thyristor bridges, which can feed back the energy generated by the motor braking to the power grid, and can also work in the reverse state, That is, the energy on the grid is supplie...

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PUM

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Abstract

The invention discloses a common direct-current bus permanent magnet synchronous spinning machine control system which comprises a common direct-current bus, a reversible rectification unit, a plurality of reciprocating servo driving motors, a master controller and the like. The control system can control a plurality of reciprocating motors to work in different electric and electric energy feedback states, utilizes a common direct current bus system to enable an inverter to obtain electric energy fed back by the motors working in a braking state from a bus, and distributes the electric energy to the motors working in the electric state through the bus and a feedback device. Energy balance and circulation of the whole common direct-current bus permanent magnet synchronous spinning machine control system at all moments are achieved, stable operation of the system is guaranteed, multiple motors can be driven to work at the same time, and the working efficiency of a transmission system is improved.

Description

technical field [0001] The invention belongs to the field of industrial control, and relates to a control system of a common DC bus permanent magnet synchronous spinning machine. Background technique [0002] In the prior art, the common DC bus in industrial production is the energy exchange of one motor between different working states, that is, when the system works in the electric state, the inverter obtains electric energy from the bus; when the system works in the energy feedback state When the energy is fed back directly to the grid through the busbar and the feedback device or consumed in the braking. There are problems such as the inability to exchange energy in the first place, the exchange efficiency needs to be improved, and only one motor can be driven for industrial production operations. In order to improve work efficiency and energy conversion efficiency, it is necessary to design a new common DC bus permanent magnet synchronous spinning machine control syste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P5/00H02P5/68H02P5/685H02P7/18H02P29/028
CPCH02P5/00H02P5/68H02P5/685H02P7/18H02P29/028H02P2207/05
Inventor 李英春许阗普任文武
Owner SHAANXI UNIV OF SCI & TECH
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