A Model of an Ultra -Fast Moving Magnet Actuator for Power Switches in Medium Voltage Grids

Stroehla, Tom; Dahlmann, Martin; Sattel, Thomas; Kellerer, Tobias

doi:10.1109/icepds.2018.8571438

Cited by 3 publications

(3 citation statements)

References 5 publications

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“…One important drawback of this design is the need for an alternative actuation mechanism to enable bidirectional displacement, complicating the device. Given the low efficiency exhibited by repulsion based actuation technology, actuators with different working principles have been considered for applications where ultrafast actuation is required [80], [81], [82], [83].…”

Section: ) Ultra-fast Actuatorsmentioning

confidence: 99%

“…In addition the displaced mass is in general larger than that of an equivalent moving coil actuator, thus a longer reaction time must be expected from a MMA compared to a MCA when subject to similar excitation. The suitability of the MMA for use as an ultra-fast actuator for MVDC protection was investigated in [83], [84], where the lower performance of the MMA compared to a similar MCA was confirmed. As an alternative to repulsion driven actuators, hydraulic actuators have been implemented in practical HVDC breakers [70].…”

Section: ) Ultra-fast Actuatorsmentioning

confidence: 99%

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HVDC Circuit Breakers–A Review

et al. 2020

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HVDC circuit breakers are of increasing importance, as multi-terminal high voltage DC (HVDC) transmission becomes a commercial reality. Multiple HVDC breaker technologies have been developed, and are starting to appear as proof-of-concept installations on real networks. Information about them is however distributed widely in the literature. This paper describes the underlying challenges, the leading candidate solutions, and discusses the requirements and construction of the component subassemblies. Its goal is to provide a comprehensive overview of the field.

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Section: ) Ultra-fast Actuatorsmentioning

confidence: 99%

Section: ) Ultra-fast Actuatorsmentioning

confidence: 99%

HVDC Circuit Breakers–A Review

et al. 2020

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“…Concerning processes occurring in electrodynamic drives, previous papers on both using an analytical approach [1,2] and numerical-analytical approach [3,4] assumed several additional simplifications, the most important of which were: assumption of cylindrical symmetry of the system, simplification of the analysis to the skin layer only, omitting the influence of disc motion on IDD parameters, and, finally, assuming a priori knowledge of the excitation coil current (Thomson) or the distribution of the current radial density in the disc. Concerning these assumptions, the last important reports using the numerical approach [5][6][7][8][9][10][11][12][13][14][15][16][17] did not analyze all magneto-thermo-elastic phenomena or also assumed current extortion or quasi-steady state voltage.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Electrodynamic Phenomena in an Ultra-Rapid Inductive–Dynamic Actuator as Applied to Hybrid Short-Circuit Breakers—A Review Study

et al. 2022

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This article is a study of the research development of electrodynamic phenomena occurring in ultra-fast electrodynamic drives. These types of linear drives are among the fastest, not only because of the huge accelerations achieved, but, above all, because of the extremely short reaction time. For this reason, electrodynamic drives are used in hybrid short-circuit breakers. The phenomena occurring in this type of drive are actually magneto-thermo-elastic in nature, but the coupling of these phenomena should be considered weak if the criteria for repeatable operation in a hybrid circuit breaker system are met. The authors have been researching this type of drive for many years through not only experimental studies, but also primarily simulation studies developing models of such drives. The authors present the history of the development starting from the first works of Thomson, and Kesserling and ending with the most current models, including mainly their own. This article presents mainly works studying electrodynamic phenomena. Thermal and mechanical phenomena were comprehensively presented by the authors in previous papers.

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Performance Analysis of Tubular Moving Magnet Linear Oscillating Actuator for Linear Compressors

et al. 2022

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To overcome energy crises, attention is being paid to saving energy from household appliances. Traditional compressors are in need of being replaced by efficient linear compressors. This paper presents a new tubular moving magnet linear oscillating actuator (TMM-LOA) for compressor application. The proposed topology utilizes outer mover topology with separators between the mover and stator modules. The number of stator and mover modules can be increased or decreased based on the requirement. The addition of a separator avoids the flux cancellation and makes the proposed topology fault-tolerant. The design variables are optimized by using a parametric sweep, and the performance in terms of thrust force is observed. Both the static and transient analyses were performed to analyze the machine performance at various currents and stroke. Both mechanical and electrical resonance phenomena are discussed. The efficiency of the proposed TMM-LOA is calculated for one, two and three modules. Finally, the proposed topology is compared with other topologies proposed in the literature to show the superiority of the proposed design.

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A Model of an Ultra -Fast Moving Magnet Actuator for Power Switches in Medium Voltage Grids

Cited by 3 publications

References 5 publications

HVDC Circuit Breakers–A Review

HVDC Circuit Breakers–A Review

Modeling of Electrodynamic Phenomena in an Ultra-Rapid Inductive–Dynamic Actuator as Applied to Hybrid Short-Circuit Breakers—A Review Study

Performance Analysis of Tubular Moving Magnet Linear Oscillating Actuator for Linear Compressors

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