New Type Of Permanent Magnet Synchronous Motor Control System Design

In the history of social development, energy is always the substantial fundamental for human race. Moreover, the progress of science and technology is tightly related to the acquisition, conversion and usage of energy. Because of the convenience in production, conversion, distribution and control,electricity power has been widely used. The production of power highly concerns the transformation between two forms of energy: mechanical and electrical. And electrical machine is the key equipment in this kind of transformation. So the technology of motor plays an important role in exploration and usage of energy.The technology on motor control mainly solves problem on the running state of motors, include speed control and excitation in generator. As the rapid development in power electronics and micro-electronics, motor control gradually becomes a subject, which combines mechanic machine and electronic technology.Permanent magnetic synchronous motor enjoys great advantages in China, which is abundant in rare earths, accounting for nearly 80 percent of total quantity in the world. Commercial software such as Ansoft and Ansys promote the great improvement in electromagnetic and mechanic design in permanent magnetic synchronous motor. As a result, it is widely used in industry production, wind generation and servo field and a lot of experts focs on its development. Meanwhile, the motor control system for permanent magnetic synchronous motor also becomes a hot subject. Many big companies, such as ABB, TOKO and simens, have released their solutions on the control of permanent magnetic synchronous motor. It is firmly believed that effective control system would contribute a lot to the energy reduction of motors.This article focuses on the control system of permanent magnetic synchronous motor that has large torque at low speed. The design of hardware system, the program of motor control and simulation of control scheme are introduced in details.