Results 271 to 280 of about 22,474,821 (353)
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Active Damping Method for LC-DAB System Based on a Power-Based Impedance Model
IEEE transactions on power electronics, 2023A cascaded system, consisting of an LC filter and a dual active bridge (DAB), can exhibit certain instability due to terminal impedance mismatch. In this regard, the existing impedance models of DAB are not convenient for designing the active damping ...
Yangfan Chen, Yu Zhang, Erya Qu, Meng He
semanticscholar +1 more source
Accurate and General Small-Signal Impedance Model of LCC-HVDC in Sequence Frame
IEEE Transactions on Power Delivery, 2023To reveal the interaction between AC and DC voltage and current of line commutated converter (LCC) based HVDC, a detailed model of LCC in abc frame is developed in this article to capture the nonlinear characteristics using switching functions.
Yin Chen +3 more
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IEEE transactions on power electronics, 2021
Existing online motor parameter identification methods mostly depend on the fundamental frequency voltage equations, which lead to the unsatisfactory identification effect at low current and low speed operation.
Qiwei Wang +5 more
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Existing online motor parameter identification methods mostly depend on the fundamental frequency voltage equations, which lead to the unsatisfactory identification effect at low current and low speed operation.
Qiwei Wang +5 more
semanticscholar +1 more source
IEEE transactions on energy conversion, 2021
Impedance modeling of a permanent magnet synchronous generator (PMSG)-based wind energy conversion system (WECS) usually ignores the machine-side dynamics, instead, the machine-side system is simplified as a constant power source, while merely keeping ...
Tao Xue, J. Lyu, Han Wang, X. Cai
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Impedance modeling of a permanent magnet synchronous generator (PMSG)-based wind energy conversion system (WECS) usually ignores the machine-side dynamics, instead, the machine-side system is simplified as a constant power source, while merely keeping ...
Tao Xue, J. Lyu, Han Wang, X. Cai
semanticscholar +1 more source
IEEE transactions on industrial electronics (1982. Print), 2021
Stability analysis of the point-to-point high-voltage dc (HVdc) transmission systems is crucial for planning and operational purposes. However, due to the protection of trade secret and user privacy, it is difficult to have access to detailed information
Haitao Zhang +5 more
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Stability analysis of the point-to-point high-voltage dc (HVdc) transmission systems is crucial for planning and operational purposes. However, due to the protection of trade secret and user privacy, it is difficult to have access to detailed information
Haitao Zhang +5 more
semanticscholar +1 more source
IEEE Transactions on Power Systems, 2022
In this paper, an approximate aggregated impedance model (AAIM) of a grid-connected wind farm with multiple wind turbine generators (WTGs) for the small-signal stability study is derived.
Wenkai Dong +3 more
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In this paper, an approximate aggregated impedance model (AAIM) of a grid-connected wind farm with multiple wind turbine generators (WTGs) for the small-signal stability study is derived.
Wenkai Dong +3 more
semanticscholar +1 more source
Calculation of Electrohydraulic Shockwaves Based on Improved Arc Impedance Model
IEEE Transactions on Plasma Science, 2021The intensity of the shockwave generated by the high-current pulse discharge in the liquid is mainly determined by the deposited energy during the accelerated expansion stage of the arc plasma channel.
Shijie Huang +4 more
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Outdoor ground impedance models
The Journal of the Acoustical Society of America, 2011Many models for the acoustical properties of rigid-porous media require knowledge of parameter values that are not available for outdoor ground surfaces. The relationship used between tortuosity and porosity for stacked spheres results in five characteristic impedance models that require not more than two adjustable parameters.
Keith, Attenborough +2 more
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Harmonic Stability Analysis of MMC-Based DC System Using DC Impedance Model
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020The dc impedance model of a modular multilevel converter (MMC) is the basis for analyzing harmonic resonances of MMC-based dc systems. As an MMC typifies a multiple harmonic response system, its internal dynamics and controls significantly influence its ...
Ke Ji +4 more
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A Complete HSS-Based Impedance Model of MMC Considering Grid Impedance Coupling
IEEE transactions on power electronics, 2020Harmonic state space (HSS) is seen as an effective impedance modeling method to precisely characterize the internal harmonic features of the modular multilevel converter (MMC).
Zigao Xu +6 more
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