Frequency-Adaptive Power System Modeling for Multiscale Simulation of Transients

Gao, Feng; Strunz, Kai

doi:10.1109/tpwrs.2009.2016587

Cited by 66 publications

(48 citation statements)

References 14 publications

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“…FAST-BASED SYNCHRONOUS MACHINE MODELING IN PHASE-DOMAIN Analytic signals play an important role in FAST simulation [6], [9]. In multi-scale modeling of synchronous machine, it is desirable to find an appropriate form of imaginary part of ac electrical variables.…”

Section: Phase-domain Synchronous Machine Modeling For Emtp-type mentioning

confidence: 99%

Multi-scale modeling and simulation of synchronous machine in phase-domain

Gao

Strunz

et al. 2012

2012 3rd IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe)

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This paper presents a multi-scale model of synchronous machine in phase-domain for efficient and accurate simulation of diverse transients. It makes use of the simulation methodology frequency-adaptive simulation of transients (FAST) in which the shift frequency appears as a simulation parameter in addition to the time-step size. Through appropriate setting of both shift frequency and time-step size, the proposed synchronous machine model enables the integrative simulation of electromagnetic and electromechanical transients. Moreover, this model is established in phase coordinates leading to a direct interface with the multi-scale models of external power systems. Test studies are performed in a single-machine-infinite-bus power system. The results show that FAST simulation gives superiority over the simulation using the electromagnetic transients program (EMTP).

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Section: Phase-domain Synchronous Machine Modeling For Emtp-type mentioning

confidence: 99%

Multi-scale modeling and simulation of synchronous machine in phase-domain

Gao

Strunz

et al. 2012

2012 3rd IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe)

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“…This makes it particularly efficient for power system slow dynamics studies and also capable of simulating fast transients. The adaptive frequency shifting of the Fourier spectrum of analytic signals that describe the transients under study is achieved, leading to the method frequency‐adaptive simulation of transients (FASTs) . The FAST‐based multi‐scale transient models of distributed‐parameter transmission line and synchronous machinery were developed in the works of Gao and Strunz, and Ye et al .…”

Section: Introductionmentioning

confidence: 99%

Modeling and simulation of multi‐scale transients for PMSG‐based wind power systems

Yang²,

Li³

et al. 2017

Wind Energy

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In a wind energy conversion system (WECS), multiple-time-scale transients that cover a wide frequency range from low-frequency transient stability up to high-frequency switching events are observed. This paper presents a methodology of modeling diverse transients for a permanent magnet synchronous generator (PMSG)-based WECS within the same study. Multiple physical areas of the PMSG-based WECS are given depending on the appearance of carriers contained in the considered waveforms. In order to eliminate different carrier frequencies, the PMSG and generator-side voltage source converter (VSC) are modeled in the dq0-reference frame. On the other hand, the grid-side VSC and utility grid are dealt with in the multi-scale model of the network in which the shift frequency is available. The switching-function and average-value models of the VSC are selected depending on the carrier shifted. In addition, interface between the control and electrical subsystems is redesigned to offset the computation error caused by one time-step delay. Two test cases are performed to study the wind power fluctuations and faults ride-through. The results show that the proposed multi-scale model is able to simulate slow-changing dynamic responses up to high-frequency transients accurately while decreasing the simulation burden. In comparison with the results obtained from the EMTP (electromagnetic transients program) type simulators, the effectiveness and accuracy of the multi-scale model are verified.

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“…Dynamic Phasor models (e.g. [2]) can be as accurate as EMT ones and, at the same time, faster to simulate, when the waveforms are quasisinusoidal. However, to the authors' knowledge, there exists no industry-grade tool relying on this approach.…”

Section: Introductionmentioning

confidence: 99%

Co-Simulation of Electromagnetic Transients and Phasor Models: A Relaxation Approach

Plumier

Aristidou

Geuzaine

et al. 2016

IEEE Trans. Power Delivery

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Abstract-Co-simulation opens new opportunities to combine mature ElectroMagnetic Transients (EMT) and Phasor-Mode (PM) solvers, and take advantage of their respective high accuracy and execution speed. In this paper, a relaxation approach is presented, iterating between an EMT and a PM solver. This entails interpolating over time the phasors of the PM simulation, extracting phasors from the time evolutions of the EMT simulation, and representing each sub-system by a proper multiport equivalent when simulating the other sub-system. Various equivalents are reviewed and compared in terms of convergence of the PM-EMT iterations. The paper also considers the update with frequency of the Thévenin impedances involved in the EMT simulation, the possibility to compute the EMT solution only once per time step, and the acceleration of convergence through a prediction over time of the boundary variables. Results are presented on a 74-bus, 23-machine test system, split into one EMT and one PM sub-system with several interface buses.

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Frequency-Adaptive Power System Modeling for Multiscale Simulation of Transients

Cited by 66 publications

References 14 publications

Multi-scale modeling and simulation of synchronous machine in phase-domain

Multi-scale modeling and simulation of synchronous machine in phase-domain

Modeling and simulation of multi‐scale transients for PMSG‐based wind power systems

Co-Simulation of Electromagnetic Transients and Phasor Models: A Relaxation Approach

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