基于可靠性加权灵敏度法的微电网脆弱性评估

Vulnerability Assessment of Microgrid Based on Reliability and Weighted Sensitivity Method

计及可靠性理论,结合复杂网络理论评估微电网的脆弱性,提出以网络参数作为运行灵敏度指标权重的脆弱性评估体系,采用模糊综合评判法建立微电网脆弱性评价模型。利用美国微电网CERTS原型为算例进行计算,结果表明模型所述模型表明微电网的脆弱性不仅与其固有的网络拓扑结构参数有关,更与其运行状态密不可分,所建立的综合评价体系能有效合理的辨识微电网的薄弱环节。

Considering the microgrid’s reliability parameters,this paper proposed the vulnerability assessment index including a weighted complex network parameters and operation comprehensive sensitivity which combined the complex network theory with the microgrid,finally the micro-grid vulnerability assessment model is built using fuzzy comprehensive evaluation.With taking structure parameters and the state parameters into account,it had proved that the model could identify the weak points in microgrid effectively and provide the reference for safe operation of microgrid by calculating the example of CERTS,which showed the rationality and effectiveness of the model.