Method for designing universal motor drive controller of electric vehicle

Abstract

The invention belongs to the motor control technology for electric vehicles and relates to a method for designing a universal motor drive controller of an electric vehicle. A motor parameter is inputted to upper computer motor drive design software, a PI (Proportional-Integral) controller parameter is automatically designed, per-unit gain and inverse per-unit gain required by corresponding parameters in the calculation of vector control are also automatically designed, and after simulation, the parameters are configured to the motor drive controller; the controller reads corresponding downloaded values and samples digital signals and analog signals of a motor connected with the controller, the controller also receives assembly control signals of an assembly controller connected with the controller, system working condition processing and fault treatment are performed according to the signals, subsequently, vector control is carried out, space vector pulse-width modulation is finally performed, the steps are circularly performed, and the motor control flow is finished. According to the method, corresponding parameters only need to be inputted to the upper computer motor drive design software, the calculated parameters are configured in the motor drive controller, and accordingly, drive controllers for motors in different models can be designed.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle motor control, and more specifically relates to a design method for a universal motor drive controller of an electric vehicle. Background technique [0002] With the development of society and the increasingly prominent issues of energy and environmental protection, pure electric vehicles have attracted more and more attention from all over the world due to their advantages of zero emission and low noise. Electric vehicles have become the development direction of the automobile industry in the 21st century. One of the most important development directions of vehicles. [0003] In the research process of electric vehicles, the key technical contents include: drive battery technology, motor technology, drive system control and integration technology, battery monitoring and management system technology, charging system technology, electric vehicle vehicle layout and matching technology. Amo...

AI Technical Summary

Problems solved by technology

However, the design method of this motor drive controller usually relies on the experience of technicians, and its versatility is not strong; for multiple different types of motors, technicians need to design multiple times to obtain drive controllers corresponding to different motors, and the workload is relatively large. Big

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