A 5 kA pulsed power supply for inductive and plasma loads in large volume plasma device

Srivastava, P. K.; Singh, Sushil; Sanyasi, A. K.; Awasthi, L. M.; Mattoo, S. K.

doi:10.1063/1.4954981

Cited by 5 publications

(2 citation statements)

References 19 publications

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“…The base of to the standard performance on the behalf those inverters is the charging a capacitors via low enter voltage to in a selected time c language besides discharging a saved energy to a load to in the quick time. Essential CDVM [17,18] topologies are generally used, wherein an out-put to the voltage comes from the sequence of to the capacitors or best from the single capacitor. In this we proposed the hybrid stable statepulsed powergenerator (HSSPPG) that is the included an advantages of to the Marx besides CDVM topologies [19].…”

Section: Introductionmentioning

confidence: 99%

Modular Fusion Solid State Pulsed Power Generator with Reduced Ripple Content

2019

IJITEE

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a main objective of to the project is the Modular fusion solid state pulsed power generator with ripple content. Recently, a pulsed power structures have determined substantial packages. On behalf of to the reason, using a pulsed strength turbines that similarly to responding to a dreams of to the individual. This assignment proposes the converter that's the aggregate of to the Marx topologies besides sturdy state voltage multipliers to in a conjunction with remarks loop controller. It is the capable of to the generating excessive voltage pulses with diverse amplitudes at distinctivefrequencies to in which is the modular besides flexible. A resonant circuit used to in a this shape can reduce a strain on switching element besides growth an out-put to the voltage even as presenting the 0 modern-day switching on the behalf the a whole bridge converter. A controller is the operated with voltage oriented feedback structure controlling a duty ratio of to the power electronic devices. A Proposed Voltage Oriented Control method on the behalf the pulsed generator to reduce a switching loss besides to improve a performance. A system simulation has been done using Matlab/Simulink software. PI controller has been designed along with Pulse Width Modulation scheme to control a system.

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Section: Introductionmentioning

confidence: 99%

Modular Fusion Solid State Pulsed Power Generator with Reduced Ripple Content

2019

IJITEE

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“…Each set has been designed with equal resistive electrical path length. The EEF is coupled to a capacitor bank based pulse power suply capable of supplying a maximum current of 5kA for pulse duration of 15ms flat top 13 . The EEF produces a uniform transverse magnetic field of ∼ 160G with input current of 2kA for an EEF activation length of 1m that coprise of 13 identical central coils.…”

Section: Introductionmentioning

confidence: 99%

Observation of radially inward turbulent particle flux in ETG dominated plasma of LVPD

et al. 2017

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Radially inward turbulent particle flux is observed in the core region of target plasma of Large Volume Plasma Device(LVPD)where electron temperature driven turbulence condition satisfied region satisfy conditions for ETG turbulence, i.e. threshold condition, η e = L ne /L Te > 2/3 , where density scale length, L ne ∼ 300cm and temerature scale length, L Te ∼ 50cm[S.K. Mattoo et al., Phys. Rev. Lett., 108, 255007(2012) 1 ]. The measured flux is dominantly electrostatic (Γ es ≈ 10 5 Γ em ) although the nature of the measured turbulence is electromagnetic(β ≈ 0.6). The turbulence has been established as a consequence of electron temperature gradient (ETG) driven modes. Experimental observations of phase angle between density (n e ) and potential (φ) fluctuations, θñ e ,φ and electrostatic particle flux, Γ es shows good agreement with the corresponding theoretical estimates for ETG turbulence.

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An 18.3 MJ charging and discharging pulsed power supply system for the Space Plasma Environment Research Facility (SPERF). I. The overall design

Mao

Peng

et al. 2020

Review of Scientific Instruments

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The Space Plasma Environment Research Facility (SPERF) is a new ground-based experimental device for fundamental research studies on space plasma currently under construction at Harbin Institute of Technology in China. Scientific objectives of the SPERF include studying the asymmetric reconnection dynamics relevant to the interaction between the interplanetary and magnetospheric plasmas, reproducing the inner magnetosphere to simulate the processes of trapping, acceleration, and transport of energetic charged particles restrained in a dipole magnetic field configuration, and revealing the physical mechanism of the dipolarization front in the magnetotail. The device comprises a vacuum chamber, 11 coils consisting of 18 groups of sub-coils that are independently programmablely energized, and the plasma source system to provide the magnetic field and the plasma required by the physical experiments. Thus, each of these 18 groups of sub-coils requires a separate pulsed power supply; furthermore, the 18 pulsed power supplies constitute the pulsed power supply system of the SPERF of which the total storage energy is up to 18.3 MJ, and the technical challenges have to be overcome. The power supply energizing a dipole field coil (labeled OJC coil) wired by the copper wire to provide a dipole magnetic field is the most energetic power supply (labeled OJC power supply) with a 2.42 MJ, 16.8 mF capacitor bank charged to 20 kV. The OJC power supply delivers a current with a peak of 18 kA for a rise time of ∼26.69 ms, and the duration of the current is not less than 95% of the peak over 10 ms to the OJC coil. Meanwhile, the most challenging power supply is the power supply labeled poloidal field power supply with a 5.04 mF capacitor bank charged to 20 kV, which provides the excitation current for the load coil set with the current not less than 360 kA at the typical time of 0.11 ms to produce the sufficient growth of the magnetic field that the experiments need. In this paper, the overall design of the pulsed power supply system, the design concept of the modularization, and the principle selection basis of the key components are presented. The technical details of each power supply will be demonstrated in the future.

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A 5 kA pulsed power supply for inductive and plasma loads in large volume plasma device

Cited by 5 publications

References 19 publications

Modular Fusion Solid State Pulsed Power Generator with Reduced Ripple Content

Modular Fusion Solid State Pulsed Power Generator with Reduced Ripple Content

Observation of radially inward turbulent particle flux in ETG dominated plasma of LVPD

An 18.3 MJ charging and discharging pulsed power supply system for the Space Plasma Environment Research Facility (SPERF). I. The overall design

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