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对带有复杂机电联系的电力拖动系统进行了分析和研究，并提出了采用基于状态观测器的状态反馈加负载加速度反馈的控制方法。结果表明，该方法对改善系统的性能，提高系统的鲁棒性有良好的作用。
The power drag system with complex electromechanical connection is analyzed and researched, and the control method based on state observer’s state feedback and load acceleration feedback is proposed. The results show that this method has a good effect on improving system performance and improving system robustness.