新型电力系统电能质量案例教学改革

新型电力系统背景下，敏感型设备与新兴技术在电网中应用不断增加。电能质量分析作为传统电力专业课程，其实践教学内容难以跟进电网新技术的迭代。针对当前电能质量分析课程实践教学落后问题，首先介绍了电能质量问题的含义，以电能质量问题的典型代表为例，系统介绍了电压暂降的分析流程，包括电压暂降的特征分析、检测原理与算例仿真。所搭建的电压暂降仿真实验平台能使学生直观地感受电压暂降的产生与检测过程，对仿真数据进行分析能够加深学生对理论知识的理解。案例教学法有助于促进科研与教学互动，既培养了学生的科研兴趣，又提高了学生知识水平与解决问题的能力，实现科研-教学-实践的三赢。

Reform on Case Teaching of Power Quality in Novel Power System

Under the condition of the novel power system, emerging technologies in the power grid are developing continuously. The practical teaching of power quality analysis course is relatively backward. To deal with the above problem, this paper introduced the implication of the power quality problem firstly. Then systematically introduced the analysis process of voltage sag, including the characteristic analysis, detection principle and simulation. The voltage sag simulation experiment and data analysis can deepen students'' comprehension of power quality problem analysis. The case teaching method helps to promote the interaction between scientific research and teaching, and realizes the win-win of scientific research teaching practice.