Journal of Modern Power Systems and Clean Energy

ISSN 2196-5625 CN 32-1884/TK

Simultaneous optimization of electrical interconnection configuration and cable sizing in offshore wind farms
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1. Department of Electrical and Electronic Engineering, Eastern Mediterranean University (EMU), Gazi Magusa, North Cyprus, Mersin 10, Turkey 2. Electrical Engineering Department, Sari Branch, Islamic Azad University (IAU), Sari, Iran 3. Electrical Engineering Department, Shahid Rajaee Teacher Training University, Lavizan, Tehran, Iran 4. Department of Electrical and Electronics Engineering, Middle East Technical University-Northern Cyprus Campus, Gu¨zelyurt, Mersin 10, Turkey

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    Abstract:

    Offshore wind farm (OWF) is the largest renewable energy resource. The electrical interconnection cost of OWFs is a considerable fraction of the overall design cost of the farm. In order to minimize the investment and operational costs, this paper proposes an optimization formulation to find the optimal electrical interconnection configuration of wind turbines (WTs), and the optimal cable sizing simultaneously. This simultaneous minimization of total trenching length and cable dimensions creates a complex optimization problem that is solved by the harmony search (HS) algorithm. In this paper, two distinct methods of full and partial optimal cable sizing are considered to comprehensively assess the optimal interconnection layout of OWFs. Furthermore, various shipping and burying costs as well as various WTs power ratings are considered in order to investigate their impact on the optimal electrical interconnection system. The optimal electrical interconnection design obtained by the HS algorithm corresponds to a lower cost that together with the technological developments can help policy makers increase the use of offshore wind energy as a feasible unlimited renewable resource in their energy production portfolios.

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History
  • Online: July 20,2018