4.6 Article

Stochastic Optimal Planning of Distribution System Considering Integrated Photovoltaic-Based DG and DSTATCOM Under Uncertainties of Loads and Solar Irradiance

期刊

IEEE ACCESS
卷 9, 期 -, 页码 26541-26555

出版社

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2021.3058589

关键词

Uncertainty; Planning; Optimization; Power system stability; Resource management; Spirals; Search problems; Distributed generators; PV; DSTATCOM; optimal planning; uncertainty; electrical distribution

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This article addresses the optimal planning problem of integrating the Photovoltage Distributed Generation (PV-DG) and DSTATCOM system, proposing the Modified Ant Lion Optimizer (MALO) with two strategies to enhance the basic ALO searching ability. The simulation results demonstrate that considerable techno-economic benefits can be achieved by optimally including two PV-DGs and DSTATCOMs.
Optimal planning of integration the Photovoltage Distributed Generation (PV-DG) and DSTATCOM is a crucial task due to the stochastic variations of PV output power and the load demand which are related to solar irradiance variations and the activities of the customers, respectively. In this article, the optimal planning problem of the PV-DG and DSTATCOM system is solved. The proposed model considers the uncertainties of the solar irradiance and the load demand for a multi-objective function, including the cost reduction, the voltage profile, and stability index improvement. Modified Ant Lion Optimizer (MALO) is proposed to enhance the basic ALO searching ability using two strategies. The first strategy is based on Levy Flight Distribution (LFD) to strengthen the exploration of the algorithm and avoid the premature of the basic ALO. In contrast, the second strategy is based on updating the solutions in a spiral orientation to improve the exploitation of the algorithm. The IEEE 69-bus and 118-bus radial distribution systems are used to demonstrate the effectiveness of the proposed method, and the yielded simulations are compared with the basic ALO and other well-known optimization techniques for power loss minimization under deterministic conditions. The simulation results demonstrate that the techno-economic benefits can be increased considerably by optimal inclusion of two PV-DGs and DSTATCOMs compared with a single system.

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