摘要随着电力电子技术、微处理技术的发展以及永磁材料技术的进步，交、直流

Summary <br>With the power electronics technology, microprocessor technology and advances in the development of permanent magnet material technology, AC, DC motor speed control servo system and progressing toward the integration of the motor and a control digital. The development direction of the integration of the motor is mainly reflected in one of the brushless DC motors and permanent magnet synchronous motor system is becoming more mainstream AC and DC electric drive systems. Pulse width modulation (Pulse Width Modularion, PWM) techniques and corresponding power switching circuit technology is the digital control base. MCU and DSP performance continues to improve, especially as more and more integrated DSP hardware resources, from the application point closer to the microcontroller. While its driving power electronics technology is more mature, such as a power module IPM increasingly wide range. Based on this, the PWM control and the motor control technology matures, various forms of cycle control signal, the sine-wave control signal is most common, generally referred to as sinusoidal pulse width modulation (Sinusoidal Pulse Width Modulation, SPWM ). It appears SPWM technology and widespread application, on the one hand so that the performance of the motor control system of a conventional electric drive continues to increase, it also makes the newer, high-performance integrated DC motor system application and AC electric drive increasingly the more widely.

Summary<br>With the development of power electronics technology, microprocessing technology and the progress of permanent magnet material technology, accommocoin motor speed control and servo system is developing towards the direction of integrated motor and control digitalization. The development direction of integrated motor is mainly reflected in one of the brushless DC motor and permanent magnetic synchronous motor system is becoming the mainstream of the accoma and DC electric transmission system. Pulse Width Modulation (PWM) technology and the corresponding power switching circuit technology are the basis for controlling digitalization. The performance of the microcontroller and DSP is constantly improving, especially the more and more integrated hardware resources in the DSP, which is closer to the microcontroller from the application point of view. At the same time, power electronics and their driving technology is more mature, such as IPM module spower range is getting wider and wider. On this basis, PWM control technology and motor control technology are also becoming more and more mature, in various forms of periodic control signals, sine wave control signal is the most common application, commonly known as sine wave pulse wide modulation (Sinusoidal Pulse Pulse, SPWM). The emergence and wide application of SPWM and other technologies, on the one hand, make the performance of the motor control system in the traditional electric transmission continuously improve, on the other hand, make the new ereverity of high-performance integrated motor system in DC and AC electric transmission applications more and more widely.

abstract<br>With the development of power electronic technology, micro processing technology and permanent magnet material technology, the speed control and servo system of AC and DC motor is developing towards the direction of integrated motor and digital control. The development direction of integrated motor is mainly reflected in the integrated BLDCM and permanent magnet synchronous motor system, which is becoming the mainstream of AC and DC electric drive system. The pulse width modulation (PWM) technology and the corresponding power switch circuit technology are the basis of digital control. The performance of SCM and DSP is improving, especially the hardware resources integrated in DSP are more and more, which is closer to SCM from the perspective of application. At the same time, power electronic devices and their driving technology are more mature, such as IPM module and other power range is also more and more wide. On this basis, PWM control technology and motor control technology are becoming more and more mature. Among all kinds of periodic control signals, sine wave control signal is the most widely used, which is generally referred to as sine wave pulse width modulation (SPWM). With the appearance and wide application of SPWM technology, on the one hand, the performance of motor control system in traditional electric drive is continuously improved, on the other hand, the application of new high-performance integrated motor system in DC and AC electric drive is more and more extensive.<br>