Implementation of Axis Rotation Fast Decoupled Load Flow on distribution systems

Sianipar, Gibson H.M.; Setia, Giri Angga; Santosa, M. Fatahillah

doi:10.1109/icpere.2016.7904872

Cited by 7 publications

(2 citation statements)

References 10 publications

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“…Pada konsumen tegangan rendah pertumbuhan beban sangat pesat, sehingga keandalan gardu distribusi perlu perhatian lebih. Maka dari itu perlu menjaga keandalan dengan memperhatikan kebutuhan beban, agar suplai sesuai dengan permintaan beban di sisi konsumen [13][14] [15].…”

Section: Pendahuluanunclassified

Studi Penambahan Gardu Sisipan Tipe Tiang untuk Mengatasi Beban Lebih di PT PLN (PERSERO) Area Cianjur Rayon Mande

Setia

Setiawan

Haz

et al. 2022

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In the distribution system, blackouts caused by excessive loads cause losses for both consumers and electricity providers. Based on this, it is necessary to analyze the addition of distribution substations using an accurate methodology so that when applied it can be a solution to the need for electrical energi. Several stages of the method are determining the specifications of each component, calculating the optimal capacity of each component, measuring the voltage value contained in the panel and the primary part of the transformer at the hook-up substation, and simulating using ETAP software. The cantol substation was chosen because field studies have been carried out according to load requirements. The results of the calculation analysis show that with the addition of insertion substations, the total power becomes 100 kVA. The measured load at night is 77.7 kVA and during the day is 67.5 kVA. This indicates that the loading is in the allowable standard range below 80%. The voltage increased to 0.9828 per unit from the previous condition where there was a voltage drop of 11%. So that the load needs are met on demand.

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Section: Pendahuluanunclassified

Studi Penambahan Gardu Sisipan Tipe Tiang untuk Mengatasi Beban Lebih di PT PLN (PERSERO) Area Cianjur Rayon Mande

Setia

Setiawan

Haz

et al. 2022

epsilon

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“…Additionally, the convergence process may be compromised because of the weak coupling in active power/frequency and reactive power/voltage, a direct consequence of low X / R ratio, i.e.

R ≫ X false\to ()(, \frac{\partial P}{\partial V} ≫ \frac{\partial P}{\partial δ}) and ()(, \frac{\partial Q}{\partial δ} ≫ \frac{\partial Q}{\partial V})

This feature of distribution networks may drive the Jacobian matrix to the singularity, demanding a high computational effort to inverse it or in the worst case, the convergence of NRM in the traditional form is no longer guarantee. To overcome this problem, the Levenberg–Marquardt method [37] or the axis rotation [38] may be used. Hence, the update of the state variable of combined secondary and primary controls is made through the Levenberg–Marquardt method as written in (26)

(][, \begin{matrix} 1em4pt \\ normalΔ δ \\ normalΔ V \\ normalΔ V_{1} \\ normalΔ ω_{ref} \end{matrix}) = {({bold-italicJ}^{normalT} \times J + Λ \times I)}^{- 1} ()(, J) (][, \begin{matrix} 1em4pt \\ \begin{matrix} 1em4pt \\ normalΔ P \\ normalΔ Q \\ normalΔ Q_{sys} \\ normalΔ P_{sys} \end{matrix} \end{matrix})

Additionally, Fig.…”

Section: Proposed Algorithmmentioning

confidence: 99%

Centralised secondary control for islanded microgrids

Nascimento

Souza

Marujo

et al. 2020

IET Renewable Power Generation

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Electric power systems have undergone substantial changes in their operation. The higher penetration of renewable resources, demand response capability, and generators operating via droop control at the distribution level are the main features resulting in the microgrid concept. Microgrids must operate connected or islanded from the main grid, ensuring reliability and quality in the supply of energy in both operating scenarios. In this sense, the secondary control becomes essential in the system's resilience, since it is responsible for restoring the frequency and voltage within acceptable values. This study proposes a unified frequency and voltage secondary controls for microgrids operating in islanded mode. For this sake, a modification in the load flow algorithm considering a Jacobian matrix takes place, enabling a sensitivity analysis to give the adjustments in the set point of generators. The help of the Levenberg-Marquardt method improves the convergence in the modified load flow. All generators are continuously considered in this process, regarding their capabilities and relative control sensitivities concerning the operation point restoration. The proposed methodology is validated in a modified IEEE-37 node test feeder, showing the efficacy of the centralised secondary control under different scenarios of renewable generation penetration and load levels.

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Backward Forward Sweep Algorithm for Unbalanced Three-Phase Power Flow Analysis in Distribution Systems Containing Voltage Regulator

Taqiyuddin

Suwarno

Nurdin

et al. 2021

2021 3rd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)

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Implementation of Axis Rotation Fast Decoupled Load Flow on distribution systems

Cited by 7 publications

References 10 publications

Studi Penambahan Gardu Sisipan Tipe Tiang untuk Mengatasi Beban Lebih di PT PLN (PERSERO) Area Cianjur Rayon Mande

Studi Penambahan Gardu Sisipan Tipe Tiang untuk Mengatasi Beban Lebih di PT PLN (PERSERO) Area Cianjur Rayon Mande

Centralised secondary control for islanded microgrids

Backward Forward Sweep Algorithm for Unbalanced Three-Phase Power Flow Analysis in Distribution Systems Containing Voltage Regulator

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