Distributed Control Method for Economic Dispatch in Islanded Microgrids With Renewable Energy Sources | Zendy

Haibo Xia | Zendy; Qiang Li | Zendy; Ruilin Xu | Zendy; Tao Chen | Zendy; Jianguo Wang | Zendy; Muhammad Arshad Shehzad Hassan | Zendy; Minyou Chen | Zendy

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Distributed Control Method for Economic Dispatch in Islanded Microgrids With Renewable Energy Sources

Author(s) -

Haibo Xia,

Qiang Li,

Ruilin Xu,

Tao Chen,

Jianguo Wang,

Muhammad Arshad Shehzad Hassan,

Minyou Chen

Publication year - 2018

Publication title -

ieee access

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.587

H-Index - 127

ISSN - 2169-3536

DOI - 10.1109/access.2018.2827366

Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation

The economic dispatch in islanded microgrids (MGs) is a thorny problem due to the low equivalent inertia and the uncertainty of environmental conditions. In this paper, a two-layer model is proposed for economic dispatch in islanded MGs, in which an MG is considered as the lower layer, while a communication network is considered as the upper layer. Furthermore, a systematic method is presented to derive fully distributed control laws from any given communication network. On the communication network, there are two subgraphs, G̃ and Ĝ, one of which consists of all agents, while the other of which consists of only controllable agents. Correspondingly, two sets of control laws are derived from the two subgraphs, where the control laws from the subgraph G̃ ensure the supply-demand balance in the MG, while the control laws from the subgraph Ĝ realize the economic dispatch. Moreover, the economic operation in MGs can be satisfied, only if agents on the communication network regulate distributed generators iteratively according to the control laws. Finally, three cases are designed to evaluate the performance of the method, and the simulation results verify the effectiveness of the proposed method.

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