Scaling Version of Kundur’s Two-Areas System for Electromechanical Oscillations Representation

Baltensperger, Daniel; Dobrowolski, Jean; Obushevs, Artjoms; Sevilla, Félix Rafael Segundo; Korba, Petr

doi:10.1109/speedam48782.2020.9161960

Cited by 9 publications

(14 citation statements)

References 7 publications

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“…In a future step, these controllers will be implemented and tested in a real laboratory experiment. An adapted variant of Kundur's two area system has already been successfully developed in the smart grid laboratory in Winterthur, Switzerland [25]. Furthermore, electromechanical oscillations have been reproduced as well.…”

Section: Discussion and Future Workmentioning

confidence: 99%

Analysis of Grid Events Influenced by Different Levels of Renewable Integration on Extra-large Power Systems

Rüeger¹,

Dobrowolski²,

Korba³

et al. 2021

Adv. sci. technol. eng. syst. j.

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In this work, the impact of implementing a large amount of decentralized renewable energy sources (RES) of different scales on an extra-large power grid is investigated. Three scenarios are created, substituting 10%, 20%, and 30% of the conventional energy production by RES. For this purpose, the initial dynamic model of Continental Europe in combination with the industrial power system application DIgSILENT PowerFactory was used. In order to compare the behavior of different applied scenarios, a performance index was developed to evaluate and rank the effects of network disturbances by means of time-domain simulations. The performance index was designed based on three different criteria that analyze the oscillatory content and thus, the severity of a given event. The initial power flow of the dynamic model was identified as a limiting factor for the integration of RES, therefore two additional power flows were developed following an innovative procedure. Through the methodologies mentioned above, it was found that Turkey is the most sensitive to such changes, which are amplified by increasing implementation of RES and often lead to inter-area oscillation.

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Section: Discussion and Future Workmentioning

confidence: 99%

Analysis of Grid Events Influenced by Different Levels of Renewable Integration on Extra-large Power Systems

Rüeger¹,

Dobrowolski²,

Korba³

et al. 2021

Adv. sci. technol. eng. syst. j.

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“…The impact of the HIHDO-PMU was analyzed by assessing its performance in a power system with several generators and load buses. The system under consideration was the Kundur's two-area system defined and introduced in [27] and is now a standard model for analyzing the dynamic phenomena in power systems [28,29]. It comprises 11 buses, four identical generators, and two areas, as shown in Figure 20.…”

Section: Kundur's Two-area Systemmentioning

confidence: 99%

Performance Analysis and Benchmarking of PLL-Driven Phasor Measurement Units for Renewable Energy Systems

et al. 2022

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Phasor measurement units (PMUs) are a key part of electrical power systems, providing the dynamic monitoring and control of electrical units and impacting overall operation and synchronization of a network if not properly designed. This paper investigates the use of a phase-locked loop (PLL)-based algorithm for PMUs (to accurately find the magnitude, phase, and frequency) in a three-phase system. Various PLLs are reported in the literature, ranging from the very basic to advanced, capable of dealing with normal and abnormal grid behavior and mainly used for the control of grid-connected converters. In this paper, a number of PLLs were utilized to perform PMU functions, and a benchmarking study has been investigated to analyze the developed PLL-driven PMUs under various grid conditions (such as unbalanced faults, harmonics, and frequency variations). The simulation and experimental results were provided to support the performance capabilities and suggested limitations. In addition, the best PMU in benchmarking was used in the Kundur’s two-area system to show the significance of PMUs in a power system.

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“…Therefore, taking into account the aforementioned issues and the ever-increasing complexity of power systems, innovative concepts and advanced control structures are required to guarantee the stability of modern grids. In order to carry out lab research and have a hardware platform for the physical testing and evaluation of different power system solutions as close as possible to reality, a dynamic hardware emulator of an electrical power system (DHEPS) was built in [3]. Despite the enormous and valuable benefit in emulating power system dynamics through a DHEPS, the starting of the emulator can be very time-consuming at some point due to the sequential procedures to put in operation the different components involved, which may hinder its exploration under a broad range of operating scenarios and disturbances.…”

Section: Introductionmentioning

confidence: 99%

“…However, unlike the mentioned publications available, the DT presented in this paper focuses on a scaled power system as a whole, including every single component which is physically installed. Based on the idea of a DT, the development of a simulation model for the unique dynamic hardware emulator in [3] is presented in this paper. In addition, to illustrate the application of the DT, a case study is included considering the damping improvement of inter-area oscillations using wide area measurements, where a control strategy is tested in a controller hardware in the loop setup and finally directly applied to the physical hardware emulator.…”

Section: Introductionmentioning

confidence: 99%

Digital Twin Development of a Dynamic Hardware Emulator

et al. 2022

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The increasing deployment of new technologies to contribute to the decarbonization of power systems is imposing new challenges in terms of system dynamics and stability. To deal with different operating and control issues in this sense, and support actual needs, advanced tools and solutions are required. Therefore, this paper presents a digital twin of a dynamic hardware emulator that can be used for controller hardware in the loop (CHIL) testing and is based on a small-scale laboratory system. To build the simulation model, the parameters of involved synchronous machines, excitation systems, prime movers and transmission lines have been identified and then compared to laboratory measurements to assess the accuracy of the digital twin. Static and dynamic accuracy have been investigated and an overall good accuracy can be shown with the help of quantification of errors. Furthermore, a case study is presented where the digital twin was used to design a controller to damp inter-area oscillations with the help of wide area measurements. This controller was then implemented and tested within the dynamic hardware emulator in the laboratory.

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Scaling Version of Kundur’s Two-Areas System for Electromechanical Oscillations Representation

Abstract: balp(dobr)(obus)(segu)(korb)@zhaw.ch

Cited by 9 publications

References 7 publications

Analysis of Grid Events Influenced by Different Levels of Renewable Integration on Extra-large Power Systems

Analysis of Grid Events Influenced by Different Levels of Renewable Integration on Extra-large Power Systems

Performance Analysis and Benchmarking of PLL-Driven Phasor Measurement Units for Renewable Energy Systems

Digital Twin Development of a Dynamic Hardware Emulator

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