一种电网完备性状态信息重构的非精确故障识别方法

• Format: Patent
• Language: Chinese
• Published: 14.06.2022
• Subjects: CALCULATING; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; COMPUTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; GENERATION; PHYSICS; SYSTEMS FOR STORING ELECTRIC ENERGY; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

本发明公开了一种电网完备性状态信息重构的非精确故障识别方法，利用RTU、PMU的WAMS进行同步相量测量,并提供广域故障信息,尽量满足潮流指纹采集的实时性和全局性要求，并在故障样本和信息不完备情况下，引入非精确概率原理去研究，尽量满足容错性的要求；此外，以广域测量为背景，将RTU、PMU的潮流指纹获取的故障信息结合至非精确性原理，从而在电网不确定性情况下进行故障识别。 The invention discloses an imprecise fault identification method for power grid completeness state information reconstruction. WAMS of an RTU and a PMU is used for synchronous phasor measurement, wide-area fault information is provided, the requirements for real-time performance and globality of tidal current fingerprint collection are met as much as possible, under the condition that fault samples and information are incomplete, an imprecise probability principle is introduced for research, and the requirement for fault tolerance is met as much as possible. Besides, wide-area measurement is taken as a background, and fault information acquired by the power flow fingerprints of the RTU and the PMU is combined to an inaccuracy principle so that fault identification can be performed under the condition of power grid uncertainty.