Review of Dynamic and Transient Modeling of Power Electronic Converters for Converter Dominated Power Systems

Shah, Chinmay; Vasquez-Plaza, Jesus D.; Campo-Ossa, Daniel D.; Patarroyo-Montenegro, Juan F.; Guruwacharya, Nischal; Bhujel, Niranjan; Trevizan, Rodrigo D.; Andrade, Fabio; Shirazi, Mariko; Tonkoski, Reinaldo; Wies, Richard; Hansen, Timothy M.; Cicilio, Phylicia

doi:10.1109/access.2021.3086420

Cited by 57 publications

(6 citation statements)

References 185 publications

(244 reference statements)

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“…The number of terms within the Bessel function summation series to accurately model the phasor needs to be pre-calculated. Due to the shifted frequency nature of DPs, the time steps can be significantly increased leading to faster simulations [19]. In this work, we have developed a detailed dynamic phasor based switched model of a single phase and a three phase two-level power converter with multiple frequency components.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Dynamic Phasor Modeling Approaches for Accurate Closed-Loop Simulation of Power Converters

et al. 2022

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Modelling the fast dynamics of power converters is of growing concern in power grids and Microgrids. Dynamic phasor (DP) concept has been widely applied to switched power converter for modelling fast transients efficiently due to the inherent frequency shift property of DPs. The dynamics introduced by the DC/AC power converters depend on the controllers, which are implemented either in the stationary frame or on the synchronous reference frame (SRF). Hybrid closed-loop modelling methods that consider DP-based power converter plant model are not established and the applicability and accuracy of such hybrid approaches are not fully understood. This paper attempts to address this gap by proposing two hybrid closed-loop modelling approaches: Hybrid DP-DQ and Hybrid DP-EMT and discusses the applicability and accuracy for various controller types. Furthermore, this paper presents a DP switched model of single and three phase two level power converter and discusses the selection of harmonics to reduce model complexity. The proposed hybrid approaches were validated against detailed switched power converter models and for a wide range of scenarios, the Hybrid DP-EMT method is found to be superior compared other methods. Finally, application dependent recommendations are made for the selection of suitable hybrid closed-loop model for the accurate simulation of single phase and three phase power converters.

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Section: Introductionmentioning

confidence: 99%

Hybrid Dynamic Phasor Modeling Approaches for Accurate Closed-Loop Simulation of Power Converters

et al. 2022

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“…PECs for grid integration of renewable energy sources can consist of multiple and different cascaded and interconnected converters [3]. The non-linearity of the switches used in these power electronic systems greatly increases the complexity of models.…”

Section: Related Work On Data-driven Modeling Approaches For Power El...mentioning

confidence: 99%

“…As converterbased generation is used to meet the future energy demand, having accurate models that represent the interaction between the grid and PECs is crucial. The response of PEC-based generation involves faster and more stochastic dynamics compared to traditional power systems due to their fast-switching mechanisms [2], [3]. In the past, these dynamics were largely neglected because the percentage of PEC-based generation was low, and the PECs had a passive role without actively contributing to power system voltage and frequency control.…”

mentioning

confidence: 99%

Data-Driven Modeling of Grid-Forming Inverter Dynamics Using Power Hardware-in-the-Loop Experimentation

Guruwacharya,

Chakraborty,

Saraswat

et al. 2024

IEEE Access

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Recently, there is rapid integration of power electronic converter (PECs) into the power grid. Most of these PECs are grid-following inverters, where weak grid operation becomes an issue. Research is now shifting focus to grid-forming (GFM) inverters, resembling synchronous generators. The shift towards converter-based generation necessitates accurate PEC models for assessing system dynamics that were previously ignored in conventional power systems. Data-driven modeling (DDM) techniques are becoming valuable tools for capturing the dynamic behavior of advanced control strategies for PECs. This paper proposes using power hardware-in-the-loop experiments to capture dynamic GFM data in the application of DDM techniques. Furthermore, the paper derives an analytical approach to obtaining a mathematical model of GFM inverter dynamics and compares it with the DDM. A square-chirp probing signal was employed to perturb the active and reactive power of the load inside an Opal-RT model. The dynamic response of the GFM inverter, including changes in frequency and voltage, was recorded. This data was then used in a system identification algorithm to derive the GFM DDMs. The effectiveness of DDM is cross-validated with an analytical approach through experimental simulation studies, and the goodness-of-fit for both approaches is compared. Both approaches show more than 85% accuracy in capturing the dynamic response of GFM inverters under different loading conditions.INDEX TERMS Data-driven modeling, grid-forming inverter, power hardware-in-the-loop, power system dynamics, real-time digital simulator, system identification.

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“…Using numerical methods and grey-box identification procedures, a model of quasi-linear behavior can be obtained [7]. Paper [8] provides a thorough description of trends in power electronics converter modeling. Among the averaged small-or large-signal models that can provide ease in linear controller implementation, the paper also discusses the positive-sequence or dynamic phasor modeling methods, which can incorporate electromagnetic dynamics within a phasor framework, being efficient for bulk power system analysis, and datadriven modeling, based on large sets of measured data, with an ability to detect parameter degradation and not demanding prior knowledge of a converter's structure or parameters.…”

Section: Introductionmentioning

confidence: 99%

The Condition Number Perspective in Modeling and Designing an Electronic IDBIC Converter

Salcu,

Suciu,

Teodosescu

et al. 2024

Electronics

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This paper proposes a novel method of evaluating the Independent Double-Boost Interleaved Converter’s performance, which can offer an overview of its behavior and can enhance the design stage of the converter. The concept of “condition number” is utilized and applied to the converter’s model. Correlations between the condition number variation and the converter parameters lead to a qualitative assessment of the converter’s behavior and offer the possibility to anticipate aspects like the stability and response of the converter. An in-depth analysis is conducted, starting from the state matrix and continuing with a series of presumptions regarding the converter and its operating mode, obtaining a series of expressions that define the condition number for the converter.

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Review of Dynamic and Transient Modeling of Power Electronic Converters for Converter Dominated Power Systems

Cited by 57 publications

References 185 publications

Hybrid Dynamic Phasor Modeling Approaches for Accurate Closed-Loop Simulation of Power Converters

Hybrid Dynamic Phasor Modeling Approaches for Accurate Closed-Loop Simulation of Power Converters

Data-Driven Modeling of Grid-Forming Inverter Dynamics Using Power Hardware-in-the-Loop Experimentation

The Condition Number Perspective in Modeling and Designing an Electronic IDBIC Converter

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