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A Distributed Motor Drive Control System

A motor drive control, distributed technology, applied in the control system, motor control, AC motor control, etc., can solve the problem of difficulty in balancing reliability and system complexity, poor system operation performance with faults, low inverter utilization, etc. problem, to achieve the effect of facilitating fault isolation and state reconstruction, avoiding low utilization rate, and facilitating comprehensive optimization

Active Publication Date: 2021-03-09
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defects of low reliability, poor fault tolerance, poor system operation performance with faults, difficulty in balancing reliability and system complexity, and low inverter utilization in the prior art, thereby providing a Structure of drive control system for a motor

Method used

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  • A Distributed Motor Drive Control System

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Embodiment Construction

[0015] The technical solutions of the present invention will be further clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. The solution described here is only used to provide a further understanding of the present invention, which is a part of the application and does not constitute a limitation to the solution of the present invention.

[0016] This embodiment takes the distributed drive control system of a five-phase 60-slot 54-pole permanent magnet synchronous motor as an example. The system consists of a speed controller, a three-redundancy signal detection module, four current control drive modules, and a double-redundan...

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Abstract

The invention relates to a distributed motor drive control system, which is characterized in that it contains: a speed controller, a signal detection module, N current control drive modules, a dual-redundancy time trigger protocol bus and an M-phase synchronous motor . The technical scheme of the present invention adopts multi-phase multi-group independent drive control, and when the winding or the H-bridge fails, the fault range is only the controlled K wire packages, which greatly reduces the impact of the fault on the system. The capacity requirement of each H-bridge is reduced, which is conducive to the comprehensive optimization of the system layout, realizes distributed driving, and avoids the problem of low inverter utilization in the redundancy scheme. The internal communication bus adopts a time-triggered protocol bus, which has the advantages of good determinism, good real-time performance, high reliability, high efficiency, and easy fault diagnosis, etc. It is easy to synchronize the current drive control of N groups. Partial use of redundancy technology further improves the reliability of key information detection and control system communication.

Description

technical field [0001] The invention relates to the technical field of motor control, in particular to a distributed motor drive control system. The system is suitable for applications requiring high-reliability drive control for electric / power generation systems in aerospace, military equipment, and industrial production. Background technique [0002] At present, the motor control system usually adopts the full-bridge topology to realize the drive control of the motor. This topology requires a small number of power devices, a simple structure, and is easy to integrate. However, when the power tube of any bridge arm fails, it will cause the entire drive The control system fails, and it is difficult to isolate the fault, with low reliability and no fault tolerance. The H-bridge topology adopted for motors with independent windings can effectively avoid the above problems. Each phase of the independent winding motor uses 4 power tubes to realize independent drive control. Wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P6/28H02P25/026H02P25/22H02P27/06
CPCH02P25/22H02P27/06H02P2207/05H02P6/28H02P25/03
Inventor 朱纪洪和阳
Owner TSINGHUA UNIV
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