Fault Detection for Microgrid Feeders Using Features Based on Superimposed Positive-sequence Power

作     者：Salauddin Ansari Om Hari Gupta Om P.Malik Salauddin Ansari;Om Hari Gupta;Om P.Malik

作者机构：Department of Electrical EngineeringNational Institute of TechnologyJamshedpur 831014India IEEE Department of Electrical and Software EngineeringUniversity of Calgary2500 University Drive NWCalgary Alberta T2N 1N4Canada 

出 版 物：《Journal of Modern Power Systems and Clean Energy》 (现代电力系统与清洁能源学报（英文）)

年 卷 期：2023年第11卷第6期

页      面：1948-1958页

核心收录：

学科分类：0808[工学-电气工程] 080802[工学-电力系统及其自动化] 08[工学] 

主　　题：Fault detection distributed generation microgrid protection superimposed power 

摘      要：With the integration of distributed generation(DG) into a microgrid, fault detection has become a major task to accomplish. A scheme for microgrid feeder protection based on a newly proposed feature, ΔRP, defined as the ratio of the sum of positive-sequence real power(PSRP) at the two ends of the feeder to the larger of the PSRPs among the two ends, is proposed. If ΔRP is larger than a threshold, an internal fault is detected;otherwise, the fault is external or there is no fault. The proposed scheme is tested in various scenarios, including fault type, fault resistance, fault location, fault inception angle, varying DG penetration levels, and simultaneous, evolving, and composite faults. In addition to this, the proposed scheme offers a robust performance when subjected to noise, synchronization error, changes in sampling frequency, and changes in the topology of a microgrid. The dominancy of the proposed scheme is proven by a comprehensive comparative study with various available recent schemes. Test results on the IEEE 13-bus network indicate the viability of the proposed protection scheme for a microgrid. Finally, the proposed scheme has been validated on a real-time simulator.