An Investigation into the Next Generation of High Density, Ultra High Voltage, Power Supplies

Frost, Russell; Pilgrim, James; Lewin, P.L.; Spong, Mark W.

doi:10.1109/ipmhvc.2018.8936830

Cited by 4 publications

(5 citation statements)

References 1 publication

(1 reference statement)

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“…The smaller the value, the greater the output current and the stronger the load-carrying capacity. It is calculated by (8).…”

Section: Constraintsmentioning

confidence: 99%

“…Electron beams are widely applied in material modification [1], environmental protections [2,3], electron microscopy [4,5], and so on [6]. The ICT power supply, renowned for its high efficiency (>85%), robust power output, and reliability, has emerged as a preferred option for supplying energy to the electron beam [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…However, there is a lack of analysis and comparison of their performance and application range. On the other hand, for the parameter optimization of these compensation methods, researchers have proposed the artificial iterative method (IM) [16], genetic algorithm (GA) [17], particle swarm optimization (PSO) [8,18], and other methods. However, these methods are difficult to satisfy the optimization of all compensation methods simultaneously.…”

Section: Introductionmentioning

confidence: 99%

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Research on Voltage Compensation Methods and Optimization Algorithm for Insulated Core Transformer High-Voltage Power Supply

Yang,

Liu,

Yang

2024

Energies

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The insulated core transformer (ICT) power supply is widely employed in electron beam accelerators (EBAs) due to its high power, heightened efficiency, and stable operation. However, the segmented-core structure of the ICT power supply increases magnetic leakage, which leads to it adversely affecting the consistency of the output voltages in the rectifier stages. Currently, numerous studies focus on stage voltage compensation, including turns compensation, capacitor compensation, dummy primary winding compensation, and full-parameter compensation. This paper presents a unified simulation model and an improved gradient-based genetic algorithm, which can also optimize the parameters of the four compensation methods. Based on this, the performance of the power supply using the four compensation methods under different ICT energy levels and power supply requirements is studied, and the selection suggestions are given. This work fills the gap in the performance comparison and application research of various compensation methods.

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“…The smaller the value, the greater the output current and the stronger the load-carrying capacity. It is calculated by (8).…”

Section: Constraintsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Research on Voltage Compensation Methods and Optimization Algorithm for Insulated Core Transformer High-Voltage Power Supply

Yang,

Liu,

Yang

2024

Energies

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“…In addition to this, there is a practical limit to the voltage that can be obtained using a single stack, as increasing the height of the stack will soon yield diminishing returns, in terms of voltage, as the flux loss becomes too great. A number of different core configurations were examined in [4] and it was concluded that the most effective way of reducing flux loss is, as with a conventional transformer, to create a closed flux path from soft magnetic material. This technique was employed, amongst others, by Cross, who patented an ICT that produced 375 kV.…”

Section: Core Layoutmentioning

confidence: 99%

An investigation into the suitability of insulated core transformer technology for an ultra high voltage power supply

Frost

Lewin

Spong

2019

IEEE Trans. Dielect. Electr. Insul.

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A growing area of interest is HVDC supplies. This paper represents an initial study into possible designs of HVDC transformers that could provide 2 A at 1 MV, with the added specification that any proposed technology should be scalable to 5 A at 5 MV. Insulated core transformers (ICTs) have been initially selected as a potentially suitable technology. Careful design of the ICT magnetic core is required to ensure that flux loss is limited so that higher voltages are achievable. Simulation studies have shown that the voltage produced in an ICT does not scale linearly, meaning that there is an effective limit to the voltage that they can produce. In addition to this, a technique is proposed to increase the available current output of an ICT. The full analysis is presented in this paper.

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“…Significant magnetic flux leakage is produced by the insulation sheets of ICTs [9,12]. The leakage flux gradually increases from the bottom to the top disk [6,13]. The output voltage of disks is proportional to the working frequency, the flux amplitude, and the number of secondary winding turns.…”

Section: Introductionmentioning

confidence: 99%

Application of Particle Swarm Optimization in the Design of an ICT High-Voltage Power Supply with Dummy Primary Winding

Jiang

Fan

2021

Electronics

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The distribution of disk output voltage is a key factor for the design of an insulated core transformer (ICT) high-voltage power supply. The development of an ICT involves the design and optimization of many parameters, which greatly affect the uniformity of disk output voltage. A new ICT structure with dummy primary windings can compensate for the disk output voltage, which aims to improve uniformity. In this work, an optimization method based on a particle swarm optimization (PSO) algorithm was used to optimize the design parameters of an ICT with dummy primary windings. It achieved an optimal uniformity of disk output voltage and load regulation. The design parameters, including the number of secondary winding turns and the compensation capacitance, were optimized based on the finite-element method (FEM) and Simulink circuit simulation. The results show that the maximum non-uniformity of the disk output voltage is reduced from 11.1% to 4.4% from no-load to a full load for a 200 kV/20 mA HUST-ICT prototype. Moreover, the load regulation is greatly reduced from 14.3% to 9.6%. The method improves the stability and reliability of the ICT high voltage power supply and greatly reduces the design time.

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An Investigation into the Next Generation of High Density, Ultra High Voltage, Power Supplies

Cited by 4 publications

References 1 publication

Research on Voltage Compensation Methods and Optimization Algorithm for Insulated Core Transformer High-Voltage Power Supply

Research on Voltage Compensation Methods and Optimization Algorithm for Insulated Core Transformer High-Voltage Power Supply

An investigation into the suitability of insulated core transformer technology for an ultra high voltage power supply

Application of Particle Swarm Optimization in the Design of an ICT High-Voltage Power Supply with Dummy Primary Winding

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