The paper proposed the ANN and fuzzy theory method for the assessment of practical dynamic security regions (DSR) of power systems, and built the imitator for dynamic security regions and the fuzzy identifier based on fuzzy theory.

• 摘要在实用动态安全域的基础上提出了实用动态安全域的神经网络和模糊理论方法，构建了用于拟合动态安全域的ANN拟和器和用模糊理论在安全边界上构造一个模糊中间带的模糊识别器，并对该方法中的系统灵敏度和超平面度进行了分析。