1引言近几年我国工业取得了飞速发展,面临着前所未有的巨大机遇,但相对于世界先进的设备,也面临着巨大的挑战。生产设备的生产能力非常强大,但我们的产品基本处于中低端市场,主要原因是技术条件的限制。目前,在一些定位精度或动态响应要求比较高的运动控制中,广泛使用数字式交流伺服系统。这种伺服系统的驱动器对电机轴 1 Introduction In recent years, China’s industry has achieved rapid growth and is facing unprecedented opportunities. However, compared with the world’s advanced equipment, it faces enormous challenges. The production capacity of production equipment is very strong, but our products are basically in the low-end market, mainly due to technical constraints. At present, digital servo systems are widely used in some motion control with high positioning accuracy or dynamic response. This servo drive to the motor shaft