Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Sensorless model predictive control system and method for vehicle permanent magnet synchronous motor

A technology of permanent magnet synchronous motor and sensor model, which is applied in control system, motor control, vector control system, etc., to achieve the effect of realizing performance, good system robustness, and preventing too fast change frequency

Active Publication Date: 2018-12-18
TONGJI UNIV
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing position sensorless technology is generally based on the vector control system, and there are still defects in the vector control technology.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sensorless model predictive control system and method for vehicle permanent magnet synchronous motor
  • Sensorless model predictive control system and method for vehicle permanent magnet synchronous motor
  • Sensorless model predictive control system and method for vehicle permanent magnet synchronous motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0045] Such as figure 1 As shown, a position sensorless model predictive control system for permanent magnet synchronous motors for vehicles, the system includes:

[0046] Maximum torque current ratio controller (MTPA controller): obtain the stator current reference value according to the torque reference value of the permanent magnet synchronous motor;

[0047] Stator current feedback module: obtain the stator current feedback value of the permanent magnet synchronous motor;

[0048] Position observer module: observe the permanent magnet synchronous motor speed and rotor position angle;

[0049] Current predictive control module: perform current predictive control and output stator voltage reference value according to stator current reference value, stator current feedback value, permanent magnet synchronous motor speed and rotor position;

[0050] Rotary high-frequency voltage injection module: generate a rotating high-frequency voltage signal and superimpose it with the sta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a sensorless model predictive control system and a method of a permanent magnet synchronous motor for vehicles. The system comprises a maximum torque-current ratio controllerfor obtaining a reference value of a stator current; Stator current feedback module: acquiring a stator current feedback value; A position observer module for observing the rotational speed and the rotor position angle of the permanent magnet synchronous motor; A current predictive control module, which performs current predictive control according to the stator current reference value, the statorcurrent feedback value, the speed of the permanent magnet synchronous motor and the rotor position and outputs a stator voltage reference value; A rotating high-frequency voltage injection module that generates a rotating high-frequency voltage signal and superimposes the rotating high-frequency voltage signal and a stator voltage reference value to obtain a control voltage; SVPWM modulation module: SVPWM modulation of the control voltage to obtain inverter control signal, inverter connected to the permanent magnet synchronous motor. Compared with the prior art, the invention not only can realize the optimization of the current control performance, but also can simplify the controller hardware and improve the reliability of the control system.

Description

technical field [0001] The invention relates to a vehicle permanent magnet synchronous motor control technology, in particular to a vehicle permanent magnet synchronous motor model predictive control system and method without a position sensor. Background technique [0002] In today's automobile industry, resource waste and environmental pollution are the main problems affecting its development, so countries have accelerated the development of new energy vehicles. Among them, electric vehicles are powered by vehicle-mounted power supplies, and use motors to convert electrical energy into mechanical energy to provide source power to drive wheels, which is more environmentally friendly and has good development prospects. Permanent magnet synchronous motor (PMSM) is widely used in the field of electric vehicle drive system due to its high power density, high output torque, high efficiency and other characteristics. Various control techniques for permanent magnet synchronous mo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02P21/22H02P21/24H02P21/18H02P21/04H02P21/05
CPCH02P21/04H02P21/05H02P21/18H02P21/22H02P21/24H02P2203/03H02P2207/05
Inventor 康劲松李旭东母思远刘宇松
Owner TONGJI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products