Identification and Analysis of Fault State Criteria of Industrial Power Grid with Distributed Power Supply
In order to further improve the accuracy of industrial power grid fault identification,an industrial power grid fault method including distributed power supply based on improved matrix algorithm was designed.The distortion of feeder terminal information during data transmission is analyzed.A synchronous phasor test device is used to obtain current phase parameters and determine current flow direction.The results show that there is a great difference in the short-circuit fault state when the fault occurs in section(2)and(9);After the distributed power supply is removed,no current can be detected in the detection node and the fault location can be determined.When the node is distorted,the method presented in this paper can be corrected to achieve accurate positioning.When the power side segment fails and the data transmission of the end node is distorted,accurate positioning can be achieved through information correction.The fault algorithm and distortion correction method in this paper meet the reliability requirements.
industrial power griddistributed power supplyMatrix algorithminformation distortion
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