摘要
由于飞机上大量电力电子设备的应用,导致飞机供电网络趋于复杂化,迫切需要对供电网络电能质量进行有效评估。为实现对飞机交流电能质量进行合理评估的目标,提出了一种基于粗糙集理论的交流电能质量综合评价方法,实现了对典型客机上115 V/400 Hz交流电能质量的评估。由研究结果可知,所提方法获得的对于各评价指标的权重排序与其他方法获得的指标权重排序较为吻合,在此基础上进行的电能质量评估,能够正确地反映飞机交流电力系统的运行状态。这表明,基于粗糙集理论的评估方法仅凭客观实测数据就可以获得较为合理的飞机交流电能评价指标的权重,从而实现对飞机交流电能质量的有效评估,克服了其他方法中主观评价步骤带来的结果不确定性。
Due to the application of a large number of power electronic equipments on the aircraft,the aircraft power supply network tends to be complicated,and thus there is an urgent need to effectively evaluate the power quality of the power supply network. In order to evaluate AC power quality of aircraft,a comprehensive evaluation method of AC power quality based on rough set theory was proposed,the evaluation of 115 V/400 Hz AC power quality on typical passenger aircraft was realized. It can be seen from the study results that the weight ranking of each evaluation index obtained in the proposed method can meet with the index weight ranking obtained by other methods,and the power quality evaluation results can accurately reflect the operating status of the aircraft AC power system. It shows that the evaluation method based on rough set theory can obtain reasonable weights of aircraft AC power evaluation indicators based on objective measurement data,thereby to realize the effective evaluation of aircraft AC power quality and overcome the uncertainty brought by subjective evaluation steps in other methods.
作者
史志波
孟杰
韩勇
李学平
SHI Zhibo;MENG Jie;HAN Yong;LI Xueping(School of Electronics Information and Automation,Civil Aviation University of China,Tianjin 300300,China;School of Electrical Engineering,Yanshan University,Qinhuangdao 066004,Hebei,China)
出处
《电气传动》
2022年第11期3-9,16,共8页
Electric Drive
基金
民航局“安全能力”建设项目(2019185)。
关键词
多电飞机
电能质量
粗糙集
知识约简
权重
multi-electric aircraft
power quality
rough set
knowledge reduction
weight
