Bibliografie tematiche / Converter-Driven stability

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Letteratura scientifica selezionata sul tema "Converter-Driven stability"

Autore: Grafiati

Pubblicato: 11 gennaio 2025

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Articoli di riviste sul tema "Converter-Driven stability"

Luo, Jianqiang, Yiqing Zou, Siqi Bu e Ulas Karaagac. "Converter-Driven Stability Analysis of Power Systems Integrated with Hybrid Renewable Energy Sources". Energies 14, n. 14 (16 luglio 2021): 4290. http://dx.doi.org/10.3390/en14144290.

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Renewable energy sources such as wind power and photovoltaics (PVs) have been increasingly integrated into the power system through power electronic converters in recent years. However, power electronic converter-driven stability has issues under specific circumstances, for instance, modal resonances might deteriorate the dynamic performance of the power systems or even threaten the overall stability. In this work, the integration impact of a hybrid renewable energy source (HRES) system on modal interaction and converter-driven stability was investigated in an IEEE 16-machine 68-bus power system. In this paper, firstly, an HRES system is introduced, which consists of full converter-based wind power generation (FCWG) and full converter-based photovoltaic generation (FCPV). The equivalent dynamic models of FCWG and FCPV are then established, followed by linearized state-space modeling. On this basis, converter-driven stability analysis was performed to reveal the modal resonance mechanisms between different renewable energy sources (RESs) and weak grids in the interconnected power systems and the multi-modal interaction phenomenon. Additionally, time-domain simulations were conducted to verify the effectiveness of dynamic models and support the converter-driven stability analysis results. To avoid detrimental modal resonances, a multi-modal and multi-parametric optimization strategy is further proposed by retuning the controller parameters of the multi-RESs in the HRES system. The overall results demonstrate the modal interaction effect between the external AC power system and the HRES system and its various impacts on converter-driven stability.

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Quester, Matthias, Fisnik Loku, Otmane El Azzati, Leonel Noris, Yongtao Yang e Albert Moser. "Investigating the Converter-Driven Stability of an Offshore HVDC System". Energies 14, n. 8 (20 aprile 2021): 2341. http://dx.doi.org/10.3390/en14082341.

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Offshore wind farms are increasingly built in the North Sea and the number of HVDC systems transmitting the wind power to shore increases as well. To connect offshore wind farms to adjacent AC transmission systems, onshore and offshore modular multilevel converters transform the transmitted power from AC to DC and vice versa. Additionally, modern wind farms mainly use wind turbines connected to the offshore point of common coupling via voltage source converters. However, converters and their control systems can cause unwanted interactions, referred to as converter-driven stability problems. The resulting instabilities can be predicted by applying an impedance-based analysis in the frequency domain. Considering that the converter models and system data are often confidential and cannot be exchanged in real systems, this paper proposes an enhanced impedance measurement method suitable for black-box applications to investigate the interactions. A frequency response analysis identifies coupling currents depending on the control system. The currents are subsequently added to the impedance models to achieve higher accuracy. The proposed method is applied to assess an offshore HVDC system’s converter-driven stability, using impedance measurements of laboratory converters and a wind turbine converter controller replica. The results show that the onshore modular multilevel converter interacts with AC grids of moderate short-circuit ratios. However, no interactions are identified between the offshore converter and the connected wind farm.

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Yellisetti, Viswaja, e Albert Moser. "Complexity Reduction for Converter-Driven Stability Analysis in Transmission Systems". Electronics 14, n. 1 (26 dicembre 2024): 55. https://doi.org/10.3390/electronics14010055.

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The high penetration of power electronic converters with complex control systems is changing the power system dynamics, introducing new challenges such as converter-driven stability incidents. Traditional stability analysis methods, suitable for classical problems like voltage, frequency, and rotor angle stability in large systems, are insufficient for addressing the fast control dynamics of converters, which involve electromagnetic phenomena. These phenomena require detailed converter and network modeling, which can be performed in both the frequency and time domains, enabling the respective stability analyses to be carried out. However, frequency domain methods, based on small-signal impedances linearized at a single operating point, inherently ignore time domain phenomena like switching events and nonlinear behaviors. In contrast, time domain electromagnetic transient (EMT) simulations are effective for analyzing converter-driven stability but are computationally intensive when applied to large transmission systems with numerous use cases. Therefore, to reduce the simulation complexity in EMT tools, a complexity reduction procedure is proposed in this paper. Leveraging the advantages of the frequency domain, such as faster simulation times and information on wideband frequency characteristics of the system, this procedure utilizes the small-signal impedances and introduces a method for network reduction. The procedure also uses the frequency domain stability analysis method to screen for critical network use cases. Primarily, this procedure is a frequency domain toolchain encompassing frequency domain stability analysis and frequency domain network reduction. The result of the toolchain is a reduced network size and reduced network use cases that can be used for EMT simulations. The procedure is applied to an IEEE 39 bus system, where converter-driven stability is evaluated for two use cases. Furthermore, the network reduction method is tested on a critical use case, demonstrating reductions in network size and computation times without compromising the quality of stability analysis results.

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Kong, Le, Yaosuo Xue, Liang Qiao e Fei Wang. "Review of Small-Signal Converter-Driven Stability Issues in Power Systems". IEEE Open Access Journal of Power and Energy 9 (2022): 29–41. http://dx.doi.org/10.1109/oajpe.2021.3137468.

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Luo, Jianqiang, Fei Teng, Siqi Bu, Zhongda Chu, Ning Tong, Anbo Meng, Ling Yang e Xiaolin Wang. "Converter-driven stability constrained unit commitment considering dynamic interactions of wind generation". International Journal of Electrical Power & Energy Systems 144 (gennaio 2023): 108614. http://dx.doi.org/10.1016/j.ijepes.2022.108614.

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Yao, Yao, Fidegnon Fassinou e Tingshu Hu. "Stability and Robust Regulation of Battery-Driven Boost Converter With Simple Feedback". IEEE Transactions on Power Electronics 26, n. 9 (settembre 2011): 2614–26. http://dx.doi.org/10.1109/tpel.2011.2112781.

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Saridaki, Georgia, Alexandros G. Paspatis, Panos Kotsampopoulos e Nikos Hatziargyriou. "An investigation of factors affecting Fast-Interaction Converter-driven stability in Microgrids". Electric Power Systems Research 223 (ottobre 2023): 109610. http://dx.doi.org/10.1016/j.epsr.2023.109610.

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Jeevajothi, R., e D. Devaraj. "Voltage stability enhancement using an adaptive hysteresis controlled variable speed wind turbine driven EESG with MPPT". Journal of Energy in Southern Africa 25, n. 2 (23 giugno 2014): 48–60. http://dx.doi.org/10.17159/2413-3051/2014/v25i2a2669.

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This paper investigates the enhancement in voltage stability achieved while connecting a variable speed wind turbine (VSWT) driven electrically excited synchronous generator (EESG) into power systems. The wind energy conversion system (WECS) uses an AC-DC-AC converter system with an uncontrolled rectifier, maximum power point tracking (MPPT) controlled dc-dc boost converter and adaptive hysteresis controlled voltage source converter (VSC). The MPPT controller senses the rectified voltage (VDC) and traces the maximum power point to effectively maximize the output power. With MPPT and adaptive hysteresis band current control in VSC, the DC link voltage is maintained constant under variable wind speeds and transient grid currents.The effectiveness of the proposed WECS in enhancing voltage stability is analysed on a standard IEEE 5 bus system, which includes examining the voltage magnitude, voltage collapse and reactive power injected by the systems. Simulation results show that the proposed WECS has the potential to improve the long-term voltage stability of the grid by injecting reactive power. The performance of this scheme is compared with a fixed speed squirrel cage induction generator (SCIG), a variable speed doubly-fed induction generator (DFIG) and a variable speed permanent magnet synchronous generator (PMSG).

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Quan, Xuli, Xinchun Lin, Yun Zheng e Yong Kang. "Transient Stability Analysis of Grid-Connected Converter Driven by Imbalance Power under Non-Severe Remote Voltage Sag". Energies 14, n. 6 (21 marzo 2021): 1737. http://dx.doi.org/10.3390/en14061737.

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In the transient process of the grid-connected converter (GCC), the existing research mainly focuses on the impact of the control loops. Little attention is paid to the transient stability issues driven by the imbalance between the input power and output power of GCC. This paper shows that the transient stability issues will still exist even if ignoring the dynamics of phase-locked loop (PLL) and current loop. In this paper, the models of the AC grid and the GCC are built under the assumption that the dynamics of the PLL and current loop are ignored. Then, by analyzing the transient process of GCC under non-severe remote voltage sag, the effects of the imbalance power on the transient stability of GCC are discussed. Moreover, for the GCC to operate stably after the transient process, there should be a maximum input power limit (MIPL) for GCC, and the imbalance power equation is applied in this paper to determine the transient stability of GCC. Furthermore, the effects of the current limitation on the transient stability of the GCC are also discussed. Finally, the theoretical analysis has been verified by means of simulations.

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Chouya, Ahmed. "Adaptive Sliding Mode Control with Chattering Elimination for Buck Converter Driven DC Motor". WSEAS TRANSACTIONS ON SYSTEMS 22 (24 febbraio 2023): 19–28. http://dx.doi.org/10.37394/23202.2023.22.3.

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The Adaptive Sliding Mode Control (ASMC) that combines a robust proportional derivative control law for use in Buck converter driven DC motor is presented in this paper. Based on the LYAPUNOV theory, the proportional derivative control law is designed to eliminate the chattering action of the control signal. The simplicity of the proposed scheme facilitates its implementation and the overall control scheme guarantees the global asymptotic stability in the LYAPUNOV sense if all the signals involved are uniformly bounded. Simulation studies have shown that the proposed controller shows superior tracking performance.

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Più fonti

Tesi sul tema "Converter-Driven stability"

Kelada, Fadi Sameh Aziz. "Étude des dynamiques et de la stabilité des réseaux électriques faible inertie avec une forte pénétration de ressources renouvelables". Electronic Thesis or Diss., Université Grenoble Alpes, 2024. http://www.theses.fr/2024GRALT065.

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Les systèmes électriques évoluent de manière significative en raison de facteurs économiques, géopolitiques et environnementaux, notamment l'intégration croissante de sources d'énergie renouvelable (RES) interfacées par des convertisseurs électroniques de puissance, connus sous le nom de ressources basées sur des onduleurs (IBR). Ce passage de systèmes dominés par des machines synchrones (SM) à des systèmes dominés par des IBR introduit des défis tels que la réduction de l'inertie, l'intermittence et les problèmes de stabilité. Les techniques traditionnelles d'analyse et de modélisation de la stabilité, qui supposent des dynamiques plus lentes inhérentes aux SM, sont inadéquates pour les dynamiques rapides des IBR. La dominance émergente des IBR nécessite le développement de modèles détaillés de transitoires électromagnétiques (EMT), qui sont intensifs en calcul mais essentiels pour capturer les dynamiques rapides des systèmes électriques modernes. Les cadres de classification de la stabilité existants, historiquement basés sur des systèmes dominés par les SM, sont en cours de révision pour incorporer les influences des IBR, introduisant de nouvelles catégories de stabilité comme la stabilité pilotée par convertisseur (CDS). Ce travail explore de nouvelles perspectives sur les interactions entre les SM, les dynamiques des unités IBR et les dynamiques des réseaux, qui ont été négligées dans la littérature. Il fournit un cadre complet qui est open-source et adaptable pour des topologies de systèmes électriques génériques, permettant des résultats et des analyses évolutifs. De plus, le cadre proposé est utilisé pour déterminer les allocations optimales d'inertie virtuelle et d'amortissement dans les systèmes électriques à faible inertie afin d'améliorer les métriques de stabilité de la fréquence
Power systems are evolving significantly due to economic, geopolitical, and environmental factors, notably the increasing integration of Renewable Energy Sources (RES) interfaced through power electronic converters, known as Inverter-Based Resources (IBR). This shift from synchronous machine (SM)-dominated systems to IBR-dominated systems introduces challenges such as reduced inertia, intermittency, and stability issues. Traditional stability analysis and modeling techniques, which assume slower dynamics inherent in SMs, are inadequate for the fast dynamics of IBRs. The emerging dominance of IBRs necessitates the development of detailed Electromagnetic Transient (EMT) models, which are computationally intensive but essential for capturing the fast dynamics of modern power systems. Existing stability classification frameworks, historically based on SM-dominated systems, are being revised to incorporate IBR influences, introducing new stability categories like Converter-Driven Stability (CDS). This work investigates novel insights into the interactions between SMs, IBR unit dynamics, and network dynamics that have been overlooked in the literature. It provides a comprehensive framework that is open-source and adaptable for generic power system topologies, allowing for scalable results and analyses. Furthermore, the proposed framework is utilized to determine optimal allocations of virtual inertia and damping in low inertia power systems to enhance frequency stability metrics

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Ram, Prakash Ranjithh Raj. "Study of an Isolated and a Non-Isolated Modular DC/DC Converter : In Multi-Terminal HVDC/MVDC grid systems". Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-278495.

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För sammankoppling av multi-terminala HVDC-system med punkt-till-punkt kopplingar ärDC-DC-omvandlaren den enda möjliga sammankopplingen. Därför genomgår problemenmed spänningsmatchning och likspänningsströmbegränsning i högspännings DC-systemomfattande forskning samt ligger i fokus för denna avhandling. Först analyseras toppmodernatopologier för högspännings DC-DC-omvandlare som används för samtrafik av flera terminalaHVDC-system. De analyserade topologierna jämförs sedan baserat på dess olika funktioner.Topologin för en konventionell icke-isolerad DC-DC-omvandlare analyseras när det gäller design,kostnad, storlek, förlust och effektstyrningskapacitet. Först skapas en matematisk modell ochsedan utförs en numerisk analys för olika arbetsområden. Därefter görs en jämförelse av entvåfas-icke-isolerad DC-omvandlare baserad på energilagring, maximal likströmsöverföring ochtotala förluster. Simulering utförs av en tvåfas och en trefas icke-isolerad DC-omvandlare iPSCAD med olika typer av styrenheter. Dessutom tas en isolerad omvandlartopologi och analyserasi detalj från matematisk modellering till validering med hjälp av simuleringsresultat.Olika typer av felanalyser för både isolerad och icke-isolerad omvandlartopologi görs. Slutligenutförs även analyser av DC-felet i olika möjliga anslutningar av omvandlaren i Multi-TerminalGrid, dvs Monopole, Bipole med både symmetriska och asymmetriska konfigurationer.
For interconnection of multi-terminal HVDC systems involving point-to-point links, aDC-DC converter is the only possible way to interconnect. Therefore, the issues of voltagematching and DC fault current limiting in high voltage DC systems are undergoing extensiveresearch and are the focus of this thesis. Starting with analyzing the state of the art highvoltage DC-DC converter topologies for interconnection of multi-terminal HVDC systems andbenchmarking each converter topology based on different functionalities. A basic non-isolatedDC-DC converter topology is analyzed in terms of design, cost, sizing, losses and power controlcapability. First, starting with the mathematical modeling and then the numerical analysis isdone for different operating regions. Next, it is compared with the two-phase non-isolated DCconverter based on energy storage, maximum DC power transfer, and total losses. Simulation oftwo-phase and three-phase non-isolated DC converter is done in PSCAD incorporating differenttypes of controllers. Then, an isolated converter topology is taken and analyzed in detail startingfrom mathematical modeling to validation using simulation results. Different types of faultsanalysis for both isolated and non-isolated converter topology is done. Finally, analyzing the DCfault in different possible connection of the converter in the multi-terminal grid, i.e. monopole,bipole in both symmetric and asymmetric configurations.

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Capitoli di libri sul tema "Converter-Driven stability"

A. Rmila, Salahaldein. "Automatic Current Sharing Mechanism in Two-phase Series Capacitor Buck DC-DC Converter (2-pscB)". In Power Electronics, RF, and Microwave Engineering [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.107975.

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In this chapter, we introduce the concept of the Inherited Automatic Current Sharing Mechanism (ACSM) in a two-phase series capacitor buck topology (2-pscB). This topology was introduced to power laptops as low-voltage and high-current Voltage Regulator Modules as well as non-isolated Point-of-Load converters (Vin < 12 V). To satisfy the converter stability, a state-space modeling technique of switching intervals coupled with parasitic component linearization is developed. Due to the series capacitor charging period miscalculation, the applicability of the ACSM of 2-pscB switching topology for high-power electronic applications is still very limited. Inserting a series capacitor between power switches of phase A increases loop parasitic inductance, introduces a time delay mismatch between the gate voltages of the two switches, and causes interference with the synchronization of the dead time between both phases of 2-pscB converters since the phase B has no series capacitor. This mismatch reduces the heat distribution efficiency and lifetime. As such, a complete model study delivered by the converter is required to design a robust controller. Driven to explore the series capacitor voltage feedback mechanism, frequency analysis of transfer functions, and filter behavior with experimental prototype examples (Vin < 120 V) have been presented for the first time to demonstrate the theoretical analysis. Obtained efficiency was up to 94.9% at full load.

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Atti di convegni sul tema "Converter-Driven stability"

Wang, Zhaoyuan, e Siqi Bu. "Probabilistic Analysis of Converter-Driven Stability of Power Systems Based on Generalized Polynomial Chaos Expansion". In 2024 IEEE Power & Energy Society General Meeting (PESGM), 1–5. IEEE, 2024. http://dx.doi.org/10.1109/pesgm51994.2024.10688565.

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Mozuras, Almantas, e Evgueni Podzharov. "Displacement Measurement, Nonlinearity, Noise, and Thermal Stability". In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/vib-48599.

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Nonlinear distortions, noise, and thermal instability are the most important error sources of non-contact displacement and distance measurement. In this work, the ways of elimination of these errors are considered. Two methods are proposed and analyzed. The first method helps to exclude nonlinear distortions and noise. According to this method, the nonlinear converter is driven to harmonic oscillations orthogonally to the object surface with constant amplitude. Fourier coefficients are calculated for the different node positions of the vibrating converter. Calibration curve of the converter is reconstructed from collections of derivatives, which are obtained solving system of linear equations. The second method uses ratio of the two Fourier coefficients as the informative parameter and helps to exclude thermal instability. In this paper, there is shown that when the method is more noise resistant it is less thermally stable, and vice versa.

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Singh, Arshpreet, Vincent Debusschere e Nouredine Hadjsaid. "Slow-interaction Converter-driven Stability in the Distribution Grid: Small Signal Stability Analysis using RMS Models". In 2022 IEEE Power & Energy Society General Meeting (PESGM). IEEE, 2022. http://dx.doi.org/10.1109/pesgm48719.2022.9916874.

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Yellisetti, Viswaja, Otmane El Azzati e Albert Moser. "Investigation of Frequency Domain Analysis Methods for Converter-Driven Stability Evaluation of Converter-Dominated Meshed Systems". In 2023 IEEE Belgrade PowerTech. IEEE, 2023. http://dx.doi.org/10.1109/powertech55446.2023.10202892.

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Yao Yao, Fidegnon Fassinou e Tingshu Hu. "Stability and robust regulation of battery driven boost converter with simple feedback". In 2011 American Control Conference. IEEE, 2011. http://dx.doi.org/10.1109/acc.2011.5991061.

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Shen, Yang, Quan Zhou, Yang Li e Zhikang Shuai. "Data-driven Predictive Control for Grid-forming Converter Stability Enhancement in Island Microgrids". In 2022 IEEE/IAS Industrial and Commercial Power System Asia (I&CPS Asia). IEEE, 2022. http://dx.doi.org/10.1109/icpsasia55496.2022.9949635.

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Gyeltshen, Dawa, Viswaja Yellisetti, Albert Moser e Nisai Fuengwarodsakul. "Frequency-dependent impedance of transformer in mesh network for converter-driven stability analysis". In 2022 International Conference on Power, Energy and Innovations (ICPEI). IEEE, 2022. http://dx.doi.org/10.1109/icpei55293.2022.9986807.

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Wu, Guanglu, Shanshan Wang, Bing Zhao, Hong Hu, Jianhua Li, Lu Cao, Haoyin Ding, Lin Yu e Quan Ma. "Converter-Driven Low-Frequency Stability Analysis and Compensation in Weak-Grid-Tied VSCs". In 2021 International Conference on Power System Technology (POWERCON). IEEE, 2021. http://dx.doi.org/10.1109/powercon53785.2021.9697855.

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Krahmer, Sebastian, Stefan Ecklebe, Peter Schegner e Klaus Robenack. "Analysis of the Converter-Driven Stability of Q(V)-Characteristic Control in Distribution Grids". In 2022 International Conference on Smart Energy Systems and Technologies (SEST). IEEE, 2022. http://dx.doi.org/10.1109/sest53650.2022.9898506.

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Huynh Minh, P., A. Singh, V. Debusschere, N. Hadjsaid, M. C. Alvarez-Herault, X. Legrand e B. Bouzigon. "Converter-driven stability in a distribution grid with high penetration of inverter-based generation". In 27th International Conference on Electricity Distribution (CIRED 2023). Institution of Engineering and Technology, 2023. http://dx.doi.org/10.1049/icp.2023.1070.

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