Investigating the impacts of feeder reforming and distributed generation on reactive power demand of distribution networks

Baghban-Novin, Salar; Mahzouni-Sani, Mahdi; Hamidi, Amir; Golshannavaz, Sajjad; Nazarpour, Daryoush; Siano, Pierluigi

doi:10.1016/j.segan.2020.100350

Cited by 10 publications

(8 citation statements)

References 10 publications

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“…Power cables play an essential feature in linking the generation sector and demand loads, concerning distribution lines as well as transmission lines. The DNS with overhead lines is vulnerable to failure because of weather disasters, such as floods and unpredictable events like fallen trees [70]. The underground cable gains a considerable advantage because it is only slightly affected by common environmental levels.…”

Section: Cables and Distribution Linesmentioning

confidence: 99%

“…These factors have to be taken into consideration [71]. Moreover, the power system sector is one of the major growth areas and electrical utilities cannot afford to neglect the underground cable because of sizeable capacitance [70]. It is important to note that the gap between the neutral point and the conductor in underground cables can represent a negative effect, challenging the power system planners and operator system.…”

Section: Cables and Distribution Linesmentioning

confidence: 99%

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An Integrated of Hydrogen Fuel Cell to Distribution Network System: Challenging and Opportunity for D-STATCOM

Adzman

Zali

2021

Energies

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The electric power industry sector has become increasingly aware of how counterproductive voltage sag affects distribution network systems (DNS). The voltage sag backfires disastrously at the demand load side and affects equipment in DNS. To settle the voltage sag issue, this paper achieved its primary purpose to mitigate the voltage sag based on integrating a hydrogen fuel cell (HFC) with the DNS using a distribution static synchronous compensator (D-STATCOM) system. Besides, this paper discusses the challenges and opportunities of D-STATCOM in DNS. In this paper, using HFC is well-designed, modeled, and simulated to mitigate the voltage sag in DNS with a positive impact on the environment and an immediate response to the issue of the injection of voltage. Furthermore, this modeling and controller are particularly suitable in terms of cost-effectiveness as well as reliability based on the adaptive network fuzzy inference system (ANFIS), fuzzy logic system (FLC), and proportional–integral (P-I). The effectiveness of the MATLAB simulation is confirmed by implementing the system and carrying out a DNS connection, obtaining efficiencies over 94.5% at three-phase fault for values of injection voltage in HFC D-STATCOM using a P-I controller. Moreover, the HFC D-STATCOM using FLC proved capable of supporting the network by 97.00%. The HFC D-STATCOM based ANFIS proved capable of supporting the network by 98.00% in the DNS.

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Section: Cables and Distribution Linesmentioning

confidence: 99%

Section: Cables and Distribution Linesmentioning

confidence: 99%

An Integrated of Hydrogen Fuel Cell to Distribution Network System: Challenging and Opportunity for D-STATCOM

Adzman

Zali

2021

Energies

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“…The impact of renewables and distributed generation is frequently discussed. There are many published scientific articles focused on the voltage control and penetration of reactive power due to the increase in the use of renewable energy sources, e.g., [21][22][23][24][25][26]. This article is focused on changes in consumption.…”

Section: Changes In the Character Of Consumptionmentioning

confidence: 99%

Impact of Changes in a Distribution Network Nature on the Capacitive Reactive Power Flow into the Transmission Network in Slovakia

2021

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The main emphasis in the operation of an electricity system is placed on its safe and reliable operation. The flow of reactive power in a network can affect voltage conditions in individual nodes of the transmission system. In recent years, there have been changes in the network that have resulted in increased capacitive reactive power flows from lower voltage levels to higher ones. These flows can cause the voltage to rise above the limit. This paper examines recent changes in the reactive power transmission in the network, especially at lower voltage levels. The possible impact of these changes on the flow of capacitive reactive power at higher voltage levels is analyzed. This paper also presents a description and the simulated impact of power lines at different voltage levels on reactive power flows. Real measurements of different types of consumers at the low-voltage (LV) level are analyzed. Finally, a simulation model was created to simulate the impact of a customer’s power contribution to the reactive power flows from the point of view of a 110 kV voltage node. This node is characterized as a supply point.

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“…In traditional DNEP problems, the government and DISCO suffer from a high financial burden to provide a safe and secure network for fulfilling consumers' needs over the horizon planning 4 . Distributed generations (DGs) are alternative solutions to produce energy close to the end‐users to avoid investing in the mention sectors as they can connect both the low‐voltage and medium‐voltage systems 5,6 . Many countries have enacted incentive policies to encourage private investors (PIs) to participate in the investing and operating of RERs.…”

Section: Introductionmentioning

confidence: 99%

“…4 Distributed generations (DGs) are alternative solutions to produce energy close to the end-users to avoid investing in the mention sectors as they can connect both the low-voltage and medium-voltage systems. 5,6 Many countries have enacted incentive policies to encourage private investors (PIs) to participate in the investing and operating of RERs. As these regulations result in increasing the number of RERs in distribution networks, therefore, technical and financial concerns should be considered.…”

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confidence: 99%

A two‐stage multi‐period distribution network expansion planning considering the integration of private investors

Ashoornezhad

Falaghi

Hajizadeh

et al. 2021

Int Trans Electr Energ Syst

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In recent years, the emerging of renewable energy resources (RERs) in distribution networks has been rapidly raised by network planners. Although the integration of RERs brings a lot of advantages to distribution networks, they impose some disadvantages such as high initial capital investment on distribution companies (DISCO). This paper proposes a new two‐stage multi‐period distribution network expansion planning (DNEP), in which the potential of private investor's (PIs) participation is considered in the problem. In the proposed model, the planner presents an incentive price to buy energy from PIs so that it attracts them to participate in the planning projects. This incorporation is based on a long‐term contract that guarantees the benefits of both contract correspondents. The proposed model is presented as a hierarchical two‐stage optimization problem where the upper stage determines the general structure of the system and the lower level considers the operational conditions. Moreover, the photovoltaic plants (PVs) and energy storage systems (ESSs) are investigated as clean and new technologies in the planning, and DISCO determines the optimal sizing and sitting of these resources regarding technical and economical assessments. The fuzzy clustering method (FCM) is used to capture the intermittency of the system loads and solar irradiance by creating a day‐ahead scheme. The effectiveness of the proposed DNEP problem is evaluated through a 54‐bus distribution test system and a real 104‐bus test system as well. Simulation and economic results show that how PIs can play an important role in long‐term planning by investing RERs.

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Investigating the impacts of feeder reforming and distributed generation on reactive power demand of distribution networks

Cited by 10 publications

References 10 publications

An Integrated of Hydrogen Fuel Cell to Distribution Network System: Challenging and Opportunity for D-STATCOM

An Integrated of Hydrogen Fuel Cell to Distribution Network System: Challenging and Opportunity for D-STATCOM

Impact of Changes in a Distribution Network Nature on the Capacitive Reactive Power Flow into the Transmission Network in Slovakia

A two‐stage multi‐period distribution network expansion planning considering the integration of private investors

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