Megawatt HV DC Power Supplies

Reinhold, G.; Gleyvod, R.

doi:10.1109/tns.1975.4327868

Cited by 24 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…5,6,[8][9][10][11][12][13] They are suitable a) Electronic mail: hezifeng@sinap.ac.cn. for calculating 50-Hz driven circuit after considering certain factors.…”

Section: Circuit Designmentioning

confidence: 99%

See 1 more Smart Citation

Characteristics of a symmetrical Cockcroft-Walton power supply of 50 Hz 1.2 MV/50 mA

Zhang

Liu

et al. 2011

Review of Scientific Instruments

View full text Add to dashboard Cite

A 1.2 MV∕50 mA symmetrical Cockcroft-Walton (SCW) power supply of over 83% power efficiency, driven by 50 Hz frequency, was developed for an industrial electron beam irradiator. It is constructed by capacitors of 45 nF and 28.13 nF in the coupling column and capacitors of 18.75 nF in the smoothing column. Working status of the rectifier in high power output condition was analyzed, and the conduction angle of the rectifier was calculated. The power factor (PF) of the SCW circuit has been studied, and the equivalent condensance of the circuit has been derived. Measurements were done for the PF compensation. The surge impact during the short circuit transient process was considered in choosing the protection resistance. Test results showed that design specifications of the power supply were achieved, with the non-load voltage being up to 1.32 MV and the ratio of ripple voltage to output voltage as 9.4%.

show abstract

“…5,6,[8][9][10][11][12][13] They are suitable a) Electronic mail: hezifeng@sinap.ac.cn. for calculating 50-Hz driven circuit after considering certain factors.…”

Section: Circuit Designmentioning

confidence: 99%

“…5 In 1975, Reinhold reported a series of MV class and high output SCW generator working at 2 kHz. 6 Mizusawa of NHV Corporation developed the balance CW circuit generators in 3-3.6 kHz. 7 Su adopted 2.5 kHz as the operating frequency in the 600 kV/15 mA SCW power supply.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of a symmetrical Cockcroft-Walton power supply of 50 Hz 1.2 MV/50 mA

Zhang

Liu

et al. 2011

Review of Scientific Instruments

View full text Add to dashboard Cite

show abstract

“…Substituting (18) for q in ( 12) and ( 13), and plugging in these two expressions for ΔV and δV into ( 14), we obtain a first-order equation that can be solved for V out .…”

Section: B Design Examplementioning

confidence: 99%

A Hybrid Cockcroft–Walton/Dickson Multiplier for High Voltage Generation

Park

Yang

Rivas-Davila

2020

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

This paper presents a voltage multiplier topology that is a hybrid between a Cockcroft-Walton multiplier and a Dickson charge pump. The Cockcroft-Walton structure exhibits significant output voltage drop under load as the number of multiplier stage increases. This is because all coupling capacitors are connected in series. Dickson charge pump mitigates this issue by connecting all capacitors in parallel. But this solution comes at the expense of large capacitor voltage stress at the last multiplier stage. The proposed hybrid structure arranges some capacitors in parallel and others in series, thereby achieving low output voltage drop and low capacitor voltage stress at the same time. We develop a model that predicts hybrid multiplier's performance and validates it experimentally. We also demonstrate a 60-2.25 kV dc-dc converter based on a 16-stage hybrid voltage multiplier which achieves a voltage gain of 12.8 while keeping the highest capacitor voltage stress to 660 V.

show abstract

“…First of all, the gap distance was chosen to obtain low air breakdown voltage according to Paschen's law [9]. It is shown that the discharge voltage gets its minimum at 7.5 µm under normal temperature and pressure in a uniform electric field situation.…”

Section: Jagged Discharge Electrodesmentioning

confidence: 99%

Jagged discharge electrodes powered by triboelectric generator

Han

Chen

et al. 2015

Micro & Nano Letters

View full text Add to dashboard Cite

This Letter proposes jagged discharge electrode with low discharge voltage, which is fabricated by the MEMS fabrication technique. The voltage multiplier, as energy accumulation module, was analysed and modified. Finite-element analysis has been done for simulating the arc generation. The discharge form of this device was investigated through the damage on the two electrodes by microscopic images. An encapsulated liquid-based triboelectric generator was utilised to charge high voltage for self-powering the system. This novel discharge system is promising for applications in sterilisation, ozone production and arc lightening.

show abstract

Megawatt HV DC Power Supplies

Cited by 24 publications

References 0 publications

Characteristics of a symmetrical Cockcroft-Walton power supply of 50 Hz 1.2 MV/50 mA

Characteristics of a symmetrical Cockcroft-Walton power supply of 50 Hz 1.2 MV/50 mA

A Hybrid Cockcroft–Walton/Dickson Multiplier for High Voltage Generation

Jagged discharge electrodes powered by triboelectric generator

Contact Info

Product

Resources

About