New permanent magnet synchronous motor control system design

Title: New permanent magnet synchronous motor control system design Author: Yu Jiaqi Degree-granting unit: Zhejiang University Keywords: permanent magnet synchronous motor;; microcontroller;; frequency control system Summary:

History of the development of human society, energy is always a material basis for human survival, scientific and technological progress and energy is the acquisition, transformation, use together. Because energy production, conversion efficiency, transmission distribution easy to use easy to control, thereby gaining the most widely used. Energy generation and use of more involved mechanical and electrical conversion between two forms of energy, motor (motors, generators) as Neodymium Magnets electromechanical energy conversion device location key, the motor technology is directly related to efficient energy conversion and use, energy development and conservation.

Motor control technology is the main service in the motor operation, characteristics of control, the most important is the speed control motor and generator excitation control. With the power electronics technology, microelectronic technology, computer control technology applications in motor control, motor control is based on electronic control as the main form, and gradually became one of the motor as the mechanical body, set of information technology, microelectronics technology and work machine in one of the mechanical and electrical integration technology, high-tech transformation is an important means of conventional electromechanical technology.

Permanent magnet synchronous motor in China's development has a unique advantage. Rare earth resources China is a big country, with nearly 80 percent of the world's rare earth reserves. Permanent magnet motor electromagnetic, heat and mechanical vibration design, has been Ansoft, Ansys and other supporting software, design standards are improving. Permanent magnet synchronous motor has become a general direction of the motor development in the industrial power, wind power generation and servo system has been widely used. Permanent magnet http://www.everbeenmagnet.com/en/products/110-sintered-neodymium-magnets synchronous motor control has become a research hotspot. World-famous motor control inverter manufacturers such as ABB, Yaskawa, Siemens also launched specific control of permanent magnet synchronous motor drive. You can see, reliable and efficient permanent magnet synchronous motor control system for the motor to make a huge contribution to the energy-saving projects.

According to actual application requirements, and a large torque, low speed permanent magnet synchronous motors for high-power disc as an application object. Disc permanent magnet synchronous motor as a permanent magnet synchronous motor structure, it is flat type air-gap, axial air-gap magnetic field is, therefore, also known as the axial magnetic field motor. At present, domestic and foreign has developed a number of different structural forms, mainly single stator and rotor, the middle rotor, stators and other intermediate species. The middle of the stator structure of the high-power disc permanent magnet synchronous motor has been used in many high torque, low speed electric drive systems, such as pumping equipment on the field.

This paper describes the high torque, low speed permanent magnet motor control system design, including hardware systems, micro-controller system and control strategy. Degree Year: 2010