Combined PV-Wind Hosting Capacity Enhancement of a Hybrid AC/DC Distribution Network Using Reactive Control of Convertors and Demand Flexibility

Moein Taghavi, Hamed Delkhosh, Mohsen Parsa Moghaddam and Alireza Sheikhi Fini
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Moein Taghavi: Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran 1411713116, Iran
Hamed Delkhosh: Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran 1411713116, Iran
Mohsen Parsa Moghaddam: Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran 1411713116, Iran
Alireza Sheikhi Fini: Power System Planning and Operation Research Department, Niroo Research Institute, Tehran 1468613113, Iran

Sustainability, 2022, vol. 14, issue 13, 1-28

Abstract: The integration of Renewable Energy Sources (RESs) into distribution networks has increased in recent years due to numerous advantages. However, the RESs are intermittent and uncertain therefore may cause various limitations such as high lines loading and large voltage deviations, especially during high generation and low demand periods. Thus, this leads to an upper limit for the integrated capacity of RESs into the network, entitled Hosting Capacity (HC). In this paper, the complementarity of wind-PV along with the Demand Flexibility Program (DFP) are utilized for alleviating the limitations and increasing the HC in a hybrid AC/DC network. Moreover, an important feature of the AC/DC network, i.e., reactive control of Voltage Source Converters (VSCs) is investigated for increasing the HC. Additionally, a tradeoff is made between two conflicting objectives, i.e., HC and energy losses, which will be increased due to an excessive increase of the HC. Generally speaking, the paper proposes a multi-objective, multi-source, and multi-period extended optimal linear power flow model for simultaneously increasing the HC and decreasing the energy losses, utilizing stochastic programming for managing uncertainties. The simulation results show the accuracy and efficiency of the proposed formulation from various perspectives.

Keywords: AC/DC networks; Renewable Energy Sources (RESs); Hosting Capacity (HC); Demand Flexibility Program (DFP); Voltage Source Converter (VSC) (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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