中文摘要：

随着电力电子学技术的不断发展和进步，位置随动系统的系统组成部件及其控制策略都发生了巨大变化，传统的模拟部件以及控制方式已被数字式的获取和控制方式所取代，从而使系统组成得以简化与集成，控制精度以及系统的响应性能更加优越。文章分析了这一变化过程，并且通过不同系统部件以及不同的控制策略下的实际系统的实验效果之间的性能对比，具体分析了各种控制策略的优缺点，有助于人们选择合适的系统部件以及合适的控制策略。

英文摘要：

Along with the development and progress of power electronic technology continuously, the constituent parts of the position servo system and its control strategies all took place tremendous change,traditional analog parts and the way of control are replaced by the digital obtaining and control, then make the system constitute can be simplified and gathered, control accuracy and systems respond to the property more superior.The process of this variety is analyzed, and the experiment results of the actual system that base on different system parts and different control strategies are contrasted,then the merit and shortcoming of every kind of control strategy specifically, which is beneficial to the selection of fit system parts and control strategies, are analyzed.