Impact of large PV and wind power plants on voltage and frequency stability of Jordan’s national grid

Feilat, Eyad A.; Azzam, Sarah M.; Al‐Salaymeh, Ahmed

doi:10.1016/j.scs.2017.10.035

Cited by 68 publications

(30 citation statements)

References 7 publications

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“…The results of the study indicate that an up to certain capacity of PV penetration on the system enhance the power system transient stability. In [11], it has shown that the maximum renewable energy (RE) generation like PV plant can be doubled without violation of voltage profile by introducing voltage and reactive power control capabilities. Also, in dynamic voltage stability analysis, the injected reactive currents by PV plant have contributed in supporting the voltage levels at the generation buses during fault condition.…”

Section: Introductionmentioning

confidence: 99%

Transient Stability Analysis of Large-Scale PV Penetration on Power Systems

Almutiari¹,

Rawa²

2020

International Journal of Engineering Research and Technology

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With the continuous expansion and upgrading of power networks, most countries tend to exploit the renewable energy sources available to them to facing the increasing of system load or to compensate the power shortage in the system or to replace the conventional generator (SG) by large scale photovoltaic (LSP) plant. This paper deals with a representation of a real network using the powerfactory DIgSILENT program to examine the transient stability analysis of power grid under three cases, increasing of the system load, compensation of the power shortage from the generator with LSP plant and replacement of the SG by the LSP plant. The different level of the LSP penetration are considered in some assumed cases to examine the variation of the rotor angle and bus voltage after a three phase fault. The results of the transient stability analysis have been plotted and presented.

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Section: Introductionmentioning

confidence: 99%

Transient Stability Analysis of Large-Scale PV Penetration on Power Systems

Almutiari¹,

Rawa²

2020

International Journal of Engineering Research and Technology

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“…Many authors have investigated the study of the impact of high penetration of PV generation on voltage, frequency and power [17][18][19]. The impact of ambient conditions (Solar radiation and temperature) on the frequency and power of large-scale PV power plant at the point of connection with the grid is conducted in [20].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Impact of High Penetration Levels of PV Power Plants on the Capacity, Frequency and Voltage Stability of Egypt’s Unified Grid

et al. 2019

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In this paper, the impact of integrating photovoltaic plants (PVPs) with high penetration levels into the national utility grid of Egypt is demonstrated. Load flow analysis is used to examine the grid capacity in the case of integrating the desired PVPs and computer simulations are also used to assess the upgrading of the transmission network to increase its capacity. Furthermore, the impact of increasing the output power generated from PVPs, during normal conditions, on the static voltage stability was explored. During transient conditions of operation (three-phase short circuit and outage of a large generating station), the impact of high penetration levels of PVPs on the voltage and frequency stability has been presented. Professional DIgSILENT PowerFactory simulation package was used for implementation of all simulation studies. The results of frequency stability analysis proved that the national grid could be maintained stable even when the PVPs reached a penetration level up to 3000 MW of the total generation in Egypt. Transmission network upgrading to accommodate up to 3000 MW from the proposed PV power plants by 2025 is suggested. In addition, analysis of voltage stability manifests that the dynamic behavior of the voltage depends remarkably on the short circuit capacity of the grid at the point of integrating the PVPs.

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“…During the last years, the exploitation and building of PV solar plants, as well as other renewable energy facilities, are growing fast. This baseline is evident in usual domestic power grids, and in rural, remote and separated regions [1][2][3][4][5][6][7]. Widespread renewable power stations without a doubt are a desirable tendency causing improved environmental conditions, energy independence, and economic profitability.…”

Section: Introductionmentioning

confidence: 99%

“…Part of mentioned above works address influences of massive PV penetration into domestic grids: in Germany [3], in Jordan [4], and in Saudi Arabia [5]. Cited investigations showed three main problems related to PV introduction: (a) reverse power flows through the distribution system; (b) additional power flows through the transmission system hampering the stability of a grid frequency; and (c) grid voltage control.…”

Section: Introductionmentioning

confidence: 99%

Selecting Ultracapacitors for Smoothing Voltage Deviations in Local Grids Fed by Transformer with Tap-Changer and Distributed PV Facilities

2019

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Widespread use of photovoltaic (PV) small and middle-power plants close or inside existing townships and villages may cause significant deviations of the grid voltage. Owing to the oscillation of solar irradiation and corresponding power flows these voltage instabilities can damage equipment and must be prevented. Designated for the voltage regulation tap-changers in distribution transformers located in a significant distance of such settlements have a sluggish response time. As a possible answer for their delay is the smoothing energy of flows in PV power installation by intermittent capacitor low-pass filtering (LPF) located near those PV facilities. The application of ultracapacitors (UC) for LPF is remarkable due to their sustainability and relatively low costs of energy storage. The parameters selection of such appliances is a well-designed procedure for linear circuits. However, DC–AC inverters in PV facilities are represented by a power (instead of a voltage) source. As a result, the total circuit including such LPF becomes a non-linear and its transient process and consequently, its efficiency is difficult to assess requiring each time of development the UC storage an application complex numerical procedure. Engineers are usual to work with linear circuits that are describing fine by a time constant is designated as a multiplication of a capacitance times load equivalent resistance. In the case of PV DC–AC inverters, such an approach can be applied as well but a value of a time constant should be corrected. Considering a significant cost of UC storage, the non-optimal selection of a correcting coefficient may cause considerable loses. Submitted in the presented article is an original approximation procedure giving an efficiently approachable technique to select correcting coefficient for describing non-linear dynamic process by its linear analog. This way the development low-pass UC filtering in electrical systems with PV plants becomes more efficient and simpler task.

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Impact of large PV and wind power plants on voltage and frequency stability of Jordan’s national grid

Cited by 68 publications

References 7 publications

Transient Stability Analysis of Large-Scale PV Penetration on Power Systems

Transient Stability Analysis of Large-Scale PV Penetration on Power Systems

Evaluation of the Impact of High Penetration Levels of PV Power Plants on the Capacity, Frequency and Voltage Stability of Egypt’s Unified Grid

Selecting Ultracapacitors for Smoothing Voltage Deviations in Local Grids Fed by Transformer with Tap-Changer and Distributed PV Facilities

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