A novel voltage stability and quality index demonstrated on a low voltage distribution network with multifunctional energy storage systems

Katsanevakis, Markos; Stewart, Rodney Anthony; Lu, Junwei

doi:10.1016/j.epsr.2019.01.043

Cited by 26 publications

(19 citation statements)

References 41 publications

(71 reference statements)

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“…However, additional loads and investment costs from PV and ESS were not considered (Fichera et al, 2020). Also, transmission EP with ESS can help reduce total system cost by around 13.1% and improve the voltage profile by about 18.5% (Ansari et al, 2021;Katsanevakis et al, 2019;Larsen and Sauma, 2021). However, these studies use higher capacities and focus on expensive ESS types.…”

Section: Discussionmentioning

confidence: 99%

An expansion planning method for extending distributed energy system lifespan with energy storage systems

Tercan

Elma

Gökalp

et al. 2021

Energy Exploration & Exploitation

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The recent advances in the modern power grids, such as growing energy demand and penetration of higher amounts of distributed energy generators like renewable energy resources, caused additional grid integration challenges for the distributed energy system operators. Besides, deep electrification impacts triggered by a growing share of electric vehicles as additional electric loads made it essential for the distributed energy system operators to re-investigate their upgrade plans in terms of distributed energy system lines and corresponding infrastructure investments. An energy storage system offers the opportunity to use energy flexibly, resulting in deferring the inevitable upgrade costs of the distribution grid elements and increasing the power quality. In this study, a new method is proposed to extend the lifespan of distributed energy systems with an energy storage system and reduce line upgrade costs. The proposed method is tested on the IEEE-33 with different case studies. The findings of this study indicated that the investigated energy storage option has a positive impact on the distributed energy system components and assets in terms of extending their lifespan and helping to mitigate growing demand peaks because of the load increase. According to the results, the proposed method reduces the total cost by up to 66%. Furthermore, the power losses are reduced by an average of 34.8%, and the voltage profiles are improved with the energy storage system.

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Section: Discussionmentioning

confidence: 99%

An expansion planning method for extending distributed energy system lifespan with energy storage systems

Tercan

Elma

Gökalp

et al. 2021

Energy Exploration & Exploitation

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“…While the PSPC + VSPC method is described using APC, the method would be the same (and therefore equally effective) as using reactive power control (RPC). RPC, however, increases network losses [25, 30, 31]. Also, in Australia, if the VARs required for RPC are not supplied by local compensators, they are likely to be supplied by coal or gas fired generators.…”

Section: Methodsmentioning

confidence: 99%

Practical distributed voltage control method for efficient and equitable intervention of distributed devices

2019

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Growing penetrations of distributed photovoltaic (PV) generation in low-voltage electrical networks are raising new challenges for electricity industry operation. Voltage rise is a particular concern and new distributed voltage management techniques have been proposed in the literature. In this study, a novel distributed voltage control method is presented. The method is designed to be used by both PV systems and controllable loads and uses both a voltage and a power set point to manage control. These set points, along with a voltage sensitivity measure, are then used to control PV system generation and load-shedding. The objective of the control is to keep voltage levels within operational limits with reasonable accuracy. The method is practical; local measurements of net-power and voltage are used with no additional communication infrastructure required. The proposed method is compared to a power set point only and a voltage set point only control method. Results show the proposed method improves on both methods in terms of both voltage accuracy and the equity of intervention. Nomenclature C_PSP l,ph,h calculated active power curtailment (APC) for PV system located at 400 V line l, phase ph, household h according to power set point PSP l,ph C_VSP l,ph,h calculated APC for PV system located at 400 V line l, phase ph, household h according to voltage set point VSP l,ph,h DTx l distribution transformer (DTx) for 400 V line l PVout l,ph,h active power output from the PV system located at 400 V line l, phase ph, household h PSP l,ph power set point for all PV systems located on 400 V line l, phase ph. Pmes l,ph,h net-power (PV generation minus load) measured at household located at 400 V line l, phase ph, household h PV l,ph,h PV system located at 400 V line l, phase ph, household h S l,ph,h active power sensitivity at household located at 400 V line l, phase ph, household h VSP l,ph,h voltage set point for PV system located at 400 V line l, phase ph, household h Vmes l,ph,h voltage measured at household located at 400 V line l, phase ph, household h V ul upper voltage limit V_DTx_NL l no-load voltage for DTx connected to 400 V line l ΔV_DTx l

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“…|S Voltage stability and quality index (VSQI) for PV-ESS-integrated low voltage networks are presented in [107]. The VSQI is unique in terms of jointly capturing the voltage stability and voltage quality of the network having DGs and energy storage systems (ESS) complementing the power requirement.…”

Section: Improved Thevenin Estimatesmentioning

confidence: 99%

Voltage Stability of Power Systems with Renewable-Energy Inverter-Based Generators: A Review

et al. 2021

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The main purpose of developing microgrids (MGs) is to facilitate the integration of renewable energy sources (RESs) into the power grid. RESs are normally connected to the grid via power electronic inverters. As various types of RESs are increasingly being connected to the electrical power grid, power systems of the near future will have more inverter-based generators (IBGs) instead of synchronous machines. Since IBGs have significant differences in their characteristics compared to synchronous generators (SGs), particularly concerning their inertia and capability to provide reactive power, their impacts on the system dynamics are different compared to SGs. In particular, system stability analysis will require new approaches. As such, research is currently being conducted on the stability of power systems with the inclusion of IBGs. This review article is intended to be a preface to the Special Issue on Voltage Stability of Microgrids in Power Systems. It presents a comprehensive review of the literature on voltage stability of power systems with a relatively high percentage of IBGs in the generation mix of the system. As the research is developing rapidly in this field, it is understood that by the time that this article is published, and further in the future, there will be many more new developments in this area. Certainly, other articles in this special issue will highlight some other important aspects of the voltage stability of microgrids.

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A novel voltage stability and quality index demonstrated on a low voltage distribution network with multifunctional energy storage systems

Cited by 26 publications

References 41 publications

An expansion planning method for extending distributed energy system lifespan with energy storage systems

An expansion planning method for extending distributed energy system lifespan with energy storage systems

Practical distributed voltage control method for efficient and equitable intervention of distributed devices

Voltage Stability of Power Systems with Renewable-Energy Inverter-Based Generators: A Review

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