Permanent magnet synchronous motor universal control system and control method thereof

Abstract

The present invention discloses a permanent magnet synchronous motor universal control system and a control method thereof. The system comprises a control board and a driving board; the control boardcomprises a motor controller module, the driving board comprises an intelligent power module, a bus voltage detection circuit, a direct current link current detection circuit, a phase current detection circuit, an encoder, a Hall sensor and a rotary transformer interface circuit; three-phase output end of the intelligent power module is connected with a permanent magnet synchronous motor; and themotor controller module is configured to perform comprehensive processing of phase current signals and rotor position information and output three-phase and six-way PWM signals with an expected targetso as to control on-off of an inverter switching tube in the control intelligent power module and control operation of the permanent magnet synchronous motor. The permanent magnet synchronous motor universal control system and the control method thereof can support a plurality of rotor position detection modes with sensors and without sensors to ensure stable operation of the motor in various complex conditions, and employ the ideal based on the model design to establish a system simulation model and help users with improvement of development efficiency and reduction of development cost.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a general control system for a permanent magnet synchronous motor and a control method thereof. Background technique [0002] In recent years, with the shortage of energy and the pollution of the environment, the traditional automobile industry is facing a great development bottleneck, and the environment-friendly electric vehicle has gradually become the first choice for people to travel, and the electric vehicle industry has a bright future. Electric vehicles are mainly composed of three parts: electric drive system, energy system and auxiliary system. The electric drive system is the core part of electric vehicles, and its performance and efficiency directly affect the overall performance of electric vehicles. The electrical drive system mainly includes electric motors, power electronic components and control parts. At present, the motors commonly used in electric vehicles ma...

AI Technical Summary

Problems solved by technology

[0004] Nowadays, the field of electric vehicles is new day by day, and the update iteration speed is getting faster and faster. The hardware circuit of the traditional PMSM control system often only controls a single type of motor, which cannot meet the update speed requirements of various products. How to design a general-purpose The PMSM control system meets the performance index requirements of various products and is a hot issue that people pay attention to.

In addition, the traditional PMSM control strategy is implemented by manual coding, but the development cycle of manual coding is long, the error rate is high, and the portability is poor. If the motor model of the operation object changes, it needs to be recoded. How to shorten Product development cycle, improve development efficiency, gradually get people's attention

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