Development of a high frequency and high-voltage pulse transformer for a TWT HVPS

Kim, S.C.; Nam, Sang Hoon; Keon, H.M.; Park, D.S.

doi:10.1109/ppc.2003.1278015

Cited by 5 publications

(4 citation statements)

References 6 publications

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“…is sealed in the oil filled tank. Due to the electromagnetic shielding effect of the oil filled bottom tank, the electromagnetic unit is hardly affected by the external electromagnetic field [1][2][3] .…”

Section: Analysis Of the Influence Mechanism Of External Electric Fie...mentioning

confidence: 99%

Research of error influence mechanism of CVT by electric field

lin,

He,

Zhu

et al. 2024

Ninth International Symposium on Sensors, Mechatronics, and Automation System (ISSMAS 2023)

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The capacitor voltage transformer running on the grid must carry out error detection within a fixed time according to the requirements of JJG 1021 《Instrument Transformer in Power System》 verification regulation. When CVT conducts offline error detection, there is no other running equipment around. However, when the CVT is connected to the grid for operation, there are electric field effects produced by metal supports, lightning arresters and other grounding and electrified bodies around. There are differences in the environment between offline error detection and online operation status. Firstly, the paper analyzes the characteristics of the intermediate voltage change of the capacitor cell of CVT under the influence of high voltage under the condition of grid connected operation. Secondly, the equivalent model simulation model is established to analyze the quantitative impact of the electric field generated by these objects on the CVT error. These objects include metal supports, lightning arresters and multiple CVTs. Finally, the verification test of the influence of external electric field on CVT error is carried out. The test results show that the external electric field will cause the CVT ratio difference to shift in the negative direction, and the influence degree will be in the thousandth place, and the influence amount will become smaller with the increase of the distance between it and the surrounding objects. The conclusion of this paper provides technical support for the off-line error detection of CVT and the correction of additional errors caused by external electric field.

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Section: Analysis Of the Influence Mechanism Of External Electric Fie...mentioning

confidence: 99%

Research of error influence mechanism of CVT by electric field

lin,

He,

Zhu

et al. 2024

Ninth International Symposium on Sensors, Mechatronics, and Automation System (ISSMAS 2023)

View full text Add to dashboard Cite

show abstract

“…As shown in Table. 1, the primary winding is "sandwiched" between two groups of secondary windings. This type of winding arrangement has the lowest product of the parasitic inductance L s and capacitance C s , and the product of L s and C s determines the overall high frequency properties of the transformer [1,6]. In order to design the insulation distance between the core and section, and between the different sections, the maximum values of the voltage difference between them are adopted as follows:…”

Section: B Ml-pcbmentioning

confidence: 99%

Design of a planar power transformer for high voltage, high frequency use

Wang¹,

Xiao²,

Liu³

2010

IEEE PES T&D 2010

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A high-voltage (15 kV) power transformer using multilayer printed circuit board (ML-PCB) technology is presented for applications in switched-mode power supplies, whose output power is 4.5 kW, and inverting frequency is 20 kHz. A new configuration for the magnetic core is proposed based on planar EI cores. The parallel connection of planar cores was adopted as a unit, and several units were cascaded to form the high voltage transformer. Manufacturing the PCB involves small tolerances, so the transformer exhibits parasitic effects which are highly reproducible from a production viewpoint. The mechanical configuration of a laboratory prototype is discussed, as well as the electrical, parasitic, and thermal behaviors. The transformer was tested and found to have an efficiency of better than 96%. Compared with traditional high voltage transformers, this transformer has good thermal behavior, good line insulation properties and a high power density.

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“…The other methods that may reduce in the size and weight of the high-voltage high-frequency transformer are as follows: 1) Adoption of high performance magnetic materials such as nanocrystalline core [4,5]; 2) Adoption of superconducting material [6]; 3) Improvement of the transformer's insulation structure [7,8].…”

Section: Introductionmentioning

confidence: 99%

Design of High Power Density Transformer

DING¹

2017

dtetr

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Abstract. The traditional high-voltage high-frequency transformer has a drawback of low power density due to the rigorous requirements of high voltage insulation. This paper proposes a new configuration for the magnetic core based on planar EE cores. The parallel connection of planar cores was adopted as a unit, and several units were cascaded to form the high-voltage transformer. The electrical potential distribution of the proposed transformer is more uniform than a traditional transformer, and enables a decrease in the insulation distances. The mechanical configuration of a laboratory prototype is discussed, as well as the electrical, parasitic, and thermal behaviors.

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Development of a high frequency and high-voltage pulse transformer for a TWT HVPS

Cited by 5 publications

References 6 publications

Research of error influence mechanism of CVT by electric field

Research of error influence mechanism of CVT by electric field

Design of a planar power transformer for high voltage, high frequency use

Design of High Power Density Transformer

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