Local photovoltaic reactive power controller for increasing active distribution networks hosting capacity

Ayaz, Melike Selcen; Malekpour, Mostafa; Azizipanah‐Abarghooee, Rasoul; Terzija, Vladimir

doi:10.1049/iet-gtd.2020.0649

Cited by 9 publications

(3 citation statements)

References 19 publications

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“…A local reactive power regulation strategy enabling the PV systems to increase the feeder HC without using communication infrastructure is discussed in [20]. The authors have partitioned the DN into several zones while maintaining the loading limits and claimed to have increased the HC by 20% of the base power.…”

Section: Related Work Reviewsmentioning

confidence: 99%

Voltage profile analysis at planning and operational stages with allowable PV hosting capacity

Yadav,

Kishor,

Negi

2023

IET Renewable Power Gen

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High level of photovoltaic (PV) integration into the distribution network (DN) may have a negative impact in terms of voltage variations across the limits. As such thorough analysis is required to ensure voltage within limits, mainly at feeder‐end buses. In this study, the PV integration problem is addressed in a more comprehensive way, considering the unbalance DN, impedance characteristic, and interaction of load against available PV output. The approach applies to both the planning and operational stage in the assessment of allowable PV hosting capacity (HC). In the planning stage, the local impedance index is computed at constant load and power factor conditions. The entire network is partitioned into areas and the most suitable area for PV integration is determined, which can allow maximum PV integration, without/minimum voltage violations. In the operation stage for allowable PV hosting capacity, further voltage analysis is performed, wherein peakness of PV output and load conditions do not match each other. Towards, voltage regulation via PV inverter, the power factor profile is adjusted as a function of PV output. The study is demonstrated for transient solar radiation, with emphasis on maintaining the voltage at feeder‐end buses. The simulation is carried out on interfacing GridPV in MATLAB and OpenDSS toolbox. The proposed scheme for allowable HC and further voltage regulation in the network using PV inverter is also compared with those approaches, applying optimised and centralised placement of PVs.

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Section: Related Work Reviewsmentioning

confidence: 99%

Voltage profile analysis at planning and operational stages with allowable PV hosting capacity

Yadav,

Kishor,

Negi

2023

IET Renewable Power Gen

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“…Network performance can be investigated by various impact factors, mainly voltage rise and overloading issues that can be improved to increase the hosting capacity [2–5]. Thus, voltage management as a key operational challenge was discussed in [6, 7] and the authors presented various techniques to improve HC.…”

Section: Introductionmentioning

confidence: 99%

Photovoltaic hosting capacity improvement based on the economic comparison between curtailment and network upgrade

Fatima

Püvi

Pourakbari‐Kasmaei

et al. 2023

IET Generation Trans & Dist

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The upcoming network investment decisions and regulatory framework adopted by distribution system operators (DSOs) are most likely to be impacted by the integration of fluctuating distributed generation. The economical hosting capacity (HC) improvement method is investigated in this paper as a trade‐off between curtailment and upgrade using a Monte Carlo simulation procedure. The associated costs of both methods are vital indicators for network operators that are trying to maximize the HC and minimize cost. In addition, the breakeven point where curtailment and upgrade costs intersect is the decisive point at which network upgrade becomes sensible as marginal curtailment cost exceeds upgrade cost. A shift in global climate conditions can impact the photovoltaic (PV) levels that motivate network operators to investigate PV penetration, especially in colder climate regions. Thus, the primary objective of this paper is to investigate the shift of the breakeven point to guide DSOs to either adopt PV curtailment as a temporary measure or grid upgrade as a risk aversion strategy considering Finnish climate and load patterns. The real‐time load and PV generation data are utilized for the simulations to consider the dynamic performance indication of three Finnish distribution networks. Curtailment remains a low‐cost option to obtain a percentage HC rise of 13%, 7%, and 8% for rural, suburban, and urban regions, respectively, beyond which curtailment compensation cost surpasses upgrade cost. In essence, PV curtailment serves as an immediate and least‐cost solution to relieve network violations and defer network investment until the HC level (118%, 106%, 97%) making the upgrade a practical option afterwards.

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“…functionality through the combination of local voltage and time information, without the need for information exchange, but, when applied to active distribution networks, the operating logic will be affected (Selcen Ayaz et al, 2020). The second type mainly relies on the configuration of the main station and the collection of global information to achieve functions, which is the most widely used and can achieve optimization under certain conditions.…”

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confidence: 99%

A Fault Recovery Method for Distribution Networks With Distributed Power Sources Based on 5G Smart Terminal

Guo,

Tuxun

2024

International Journal of Swarm Intelligence Research

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Firstly, a smart terminal is designed based on 5G communication technology, which is embedded with various protection measurement devices to form a 5G smart terminal. A distributed control model for the distribution network is constructed based on 5G smart terminals, and an objective function is designed taking into account factors such as restoring important loads, surplus power supply in the distribution network, network losses, and the number of switch actions. Finally, the Sparrow Search Algorithm (SSA) is improved using elite reverse learning strategy and dynamic sine perturbation strategy, and it is used to solve the objective function. Based on the IEEE33 distribution network node system, experimental tests are conducted, and the results show that the average delay of 5G smart terminals is about 30ms. Taking 14:00 as an example, the proposed method achieves network loss, number of switch actions, recovered important load power, and power supply surplus of 46.39 kW, 3 times, 185.65 kW, 240.28 kW, respectively. The fault recovery effect of the distribution network is ideal.

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Local photovoltaic reactive power controller for increasing active distribution networks hosting capacity

Cited by 9 publications

References 19 publications

Voltage profile analysis at planning and operational stages with allowable PV hosting capacity

Voltage profile analysis at planning and operational stages with allowable PV hosting capacity

Photovoltaic hosting capacity improvement based on the economic comparison between curtailment and network upgrade

A Fault Recovery Method for Distribution Networks With Distributed Power Sources Based on 5G Smart Terminal

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