Three-redundancy dual-drive motor control platform and control method

Abstract

The invention discloses a three-redundancy dual-drive motor control platform and a control method. The platform comprises three independent control channels and two independent driving channels. The method comprises the main control steps of 1, synchronizing the three independent control channels firstly, and ensuring that tasks are executed at the same moment; 2, acquiring two paths of initial control signals of each independent control channel; 3, determining two paths of final control signals of each independent control channel; and 4, carrying out power driving on the controlled motor by using the final control signal to realize control of the motor. In the invention, a motor control system is enabled to have capabilities of detecting and processing internal and external faults from alevel of the motor control platform, reliability of the motor control system is greatly improved, and a situation that the motor control system works with ''problems'' is avoided.

Description

technical field [0001] The invention belongs to the field of aviation AC and DC motor control systems, and in particular relates to a three-redundancy dual-drive motor control platform and a control method. Background technique [0002] In the design of aviation AC and DC motor control system, the design of the motor controller is particularly important, and it is the core component of the entire control system. At present, most of the control systems use digital motor controllers. When it comes to the control of AC and DC motors, the key components of aircraft systems, combined with the characteristics of the motor itself (winding composition form and working mode), the design of digital motor controllers is reliable. Higher requirements are put forward in terms of performance and fault detection isolation effect. [0003] The platform architecture of the current digital motor controller is mostly single redundancy or double redundancy; [0004] When the single-redundancy...

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Problems solved by technology

[0005] When a fault occurs in the platform architecture of the digital motor controller using dual redundancy, it can only switch to the internal working state of each channel to deal with the fault. When the collected external signals are inconsistent (that is, external faults), the architecture cannot distinguish itself and Whether the other channel is working normally will cause the motor control system to "work with a disease"

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