Reliability Evaluation of Distribution System with Distributed Generation

4th International Conference on Mechanics and Mechatronics Research

机械制造;无线电电子学

Chen, Guoyan^1 ; Zhang, Feng^2 ; You, Dahai^2 ; Wang, Yong^1 ; Lu, Guojun^1 ; Zou, Qi^2 ; Liu, Hengwei^2 ; Qian, Junjie^2 ; Xu, Heng^2

Guangzhou Power Supply Co. Ltd., Guangzhou, China^1

Huazhong University of Science and Technology, Wuhan, China^2

关键词: Distribution system reliability;    Distribution systems;    Island operation;    Load modeling;    Power system reliability;    Probabilistic modeling;    Reliability assessments;    Reliability Evaluation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/224/1/012035/pdf
DOI  :  10.1088/1757-899X/224/1/012035

来源: IOP

【 摘 要 】

Distribution system reliability assessment is an important part of power system reliability assessment. In recent years, distributed generations (DG) are more and more connected to distribution system because of its flexible and friendly environment features, which imposes a great influence on distribution system reliability. Hence, a reliability evaluation method suitable for distribution system with DG is imperative, which is proposed in this paper. First, a probabilistic model of DG output is established based on the generation characteristics of DG. Second, the island operation mode of distribution system with DG is researched, subsequently, the calculation method of the probability of island successful operation is put forward on the basis of DG model and the load model. Third, a reliability assessment methodology of distribution system with DG is proposed by improving the traditional minimal path algorithm for reliability evaluation of distribution system. Finally, some results are obtained by applying the proposed method to the IEEE-RBTS Bus6 system, which are consistent with the well-known facts. In this way, the proposed method is proved to be reasonable and effective.