Generator Model Extension for Higher Accuracy Simulation of Power System Transients in OpenModelica

Kyesswa, Michael; Çakmak, Hüseyin; Kühnapfel, Uwe; Hagenmeyer, Veit

doi:10.1109/mcsi.2017.17

Cited by 3 publications

(1 citation statement)

References 8 publications

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“…The algebraic equations are used to represent the generator‐stator and transmission network. Details of the component models that comprise the differential and algebraic equations in (5) are given in [20, 23]. The network equation constitutes the largest part of the algebraic equations and is derived from the current injection

I_{i}

at each node as given in (6).…”

Section: Problem Formulationmentioning

confidence: 99%

Impact of grid partitioning algorithms on combined distributed AC optimal power flow and parallel dynamic power grid simulation

Kyesswa

Murray

Schmurr

et al. 2020

IET Generation Trans & Dist

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The complexity of most power grid simulation algorithms scales with the network size, which corresponds to the number of buses and branches in the grid. Parallel and distributed computing is one approach that can be used to achieve improved scalability. However, the efficiency of these algorithms requires an optimal grid partitioning strategy. To obtain the requisite power grid partitionings, the authors first apply several graph theory based partitioning algorithms, such as the Karlsruhe fast flow partitioner (KaFFPa), spectral clustering, and METIS. The goal of this study is an examination and evaluation of the impact of grid partitioning on power system problems. To this end, the computational performance of AC optimal power flow (OPF) and dynamic power grid simulation are tested. The partitioned OPF‐problem is solved using the augmented Lagrangian based alternating direction inexact Newton method, whose solution is the basis for the initialisation step in the partitioned dynamic simulation problem. The computational performance of the partitioned systems in the implemented parallel and distributed algorithms is tested using various IEEE standard benchmark test networks. KaFFPa not only outperforms other partitioning algorithms for the AC OPF problem, but also for dynamic power grid simulation with respect to computational speed and scalability.

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I_{i}

at each node as given in (6).…”

Section: Problem Formulationmentioning

confidence: 99%

Impact of grid partitioning algorithms on combined distributed AC optimal power flow and parallel dynamic power grid simulation

Kyesswa

Murray

Schmurr

et al. 2020

IET Generation Trans & Dist

Self Cite

View full text Add to dashboard Cite

show abstract

A two-stage parallel hybrid method for power system dynamic security assessment

Kyesswa,

Çakmak,

Kühnapfel

et al. 2023

At - Automatisierungstechnik

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The present paper introduces a hybrid method based on both the Lyapunov’s direct approach using the Potential Energy Boundary Surface method and parallel time-domain simulation for fast power system dynamic security assessment. The main contribution in the presented method is an approach that combines the directional derivative of the potential energy function and the maximum potential energy criterion in order to reduce the conservativeness in the estimation of the stability region at the direct method stage. For detailed investigation of the critical contingencies, a parallel approach is applied at the time-domain simulation stage. From the simulation results, the proposed method achieves a high level of accuracy in classifying network contingencies and shows great computational performance potential in light of the requirement for fast dynamic security assessment.

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Ventilation and Heat Circuit Network Analysis of Rotating Electric Machines using OpenModelica

Kori,

Sugimoto,

Fujii

et al. 2023

IEEJ Trans. IA

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Generator Model Extension for Higher Accuracy Simulation of Power System Transients in OpenModelica

Cited by 3 publications

References 8 publications

Impact of grid partitioning algorithms on combined distributed AC optimal power flow and parallel dynamic power grid simulation

Impact of grid partitioning algorithms on combined distributed AC optimal power flow and parallel dynamic power grid simulation

A two-stage parallel hybrid method for power system dynamic security assessment

Ventilation and Heat Circuit Network Analysis of Rotating Electric Machines using OpenModelica

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