A5004976412- Particle accelerators and beam dynamics
- Magnetic confinement fusion research
- Plasma Diagnostics and Applications
- Superconducting Materials and Applications
- Fusion materials and technologies
- Electromagnetic Launch and Propulsion Technology
- Particle Accelerators and Free-Electron Lasers
- Electrostatic Discharge in Electronics
- Pulsed Power Technology Applications
- Power Line Inspection Robots
- Energy Harvesting in Wireless Networks
- Parallel Computing and Optimization Techniques
- Laser-Plasma Interactions and Diagnostics
- Smart Grid Security and Resilience
- Atomic and Molecular Physics
- Aerosol Filtration and Electrostatic Precipitation
- Electrical and Bioimpedance Tomography
- Sensor Technology and Measurement Systems
- Wireless Power Transfer Systems
- High voltage insulation and dielectric phenomena
- Gyrotron and Vacuum Electronics Research
- Magnetic Field Sensors Techniques
- Real-time simulation and control systems
- Advanced DC-DC Converters
- Embedded Systems Design Techniques
Institute for Plasma Research
2011-2022
Sangath
2021
Integrated Test Range
2013-2014
The ITER Neutral Beam Test Facility (NBTF), called PRIMA (Padova Research on Megavolt Accelerator), is hosted in Padova, Italy and includes two experiments: MITICA, the full-scale prototype of heating neutral beam injector, SPIDER, full-size radio frequency negative-ions source. NBTF realization exploitation SPIDER MITICA have been recognized as necessary to make future operation injectors efficient reliable, fundamental achievement thermonuclear-relevant plasma parameters ITER. This paper...
The ITER project requires additional heating by two neutral beam injectors, each accelerating to 1 MV a 40 A of negative deuterium ions, deliver the plasma power about 17 MW for one hour. As these requirements have never been experimentally met, it was recognized as necessary setup test facility, PRIMA (Padova Research on Megavolt Accelerator), in Italy, including full-size ion source, SPIDER, and prototype whole injector, MITICA, aiming develop injectors be installed ITER. This realization...
The requirements of ITER neutral beam injectors (1 MeV, 40 A negative deuterium ion current for 1 h) have never been simultaneously attained; therefore, a dedicated Neutral Beam Test Facility (NBTF) was set up at Consorzio RFX (Padova, Italy). NBTF includes two experiments: SPIDER (Source the Production Ions Deuterium Extracted from Rf plasma), full-scale prototype source injectors, with 100 keV accelerator, to investigate and optimize properties source; MITICA, entire injector, devoted...
SPIDER is one of the two projects ITER Neutral Beam Test Facility (NBTF) under construction in Padova, Italy, at Consorzio RFX premises; it will have a 100 keV beam source with full-size prototype radiofrequency (RF) ion for Injector (NBI), designed to operate pulse length up 3600 s, featuring ITER-like filter field configuration, caesium oven layout and wide set diagnostics.These features allow reproducing operation like as cannot be done any other existing test facility.SPIDER realization...
In SPIDER, the full-scale prototype of negative ion source ITER Heating Neutral Beam Injectors, ions hydrogen or deuterium are extracted and accelerated by a set grids. This article describes process technical solutions that allowed achieving asseveration to operate Acceleration Grid Power Supply SPIDER at full voltage (−96 kV), reports first experimental results, discusses some possible enhancements have been identified.
High voltage power supply (HVPS) based on pulse step modulation (PSM) topology has already demonstrated its ability for broadcast transmitters, accelerators using radio frequency (RF) source and neutral beam injectors. Typical ion cyclotron resonant heating (ICRH) system composed of cascaded connection driver stage end would need two supplies. A novel concept tapping outputs from single PSM HVPS is attempted the first time. developed with dual output to feed stages a high RF amplifier. This...
Pulse step modulation (PSM)-based high-voltage power supplies have played a significant role in fusion research. In many cases, multisecondary transformers are used for generation of tens kilovolt range outputs with fast (microsecond-order) transient response. this scheme, large numbers isolated voltage sources connected series to generate the output. Isolated can be achieved by number separate or single unit transformer. Naturally, transformer having secondary windings (40) on core is...
Ion cyclotron high-voltage power supply (IC-HVPS) with dual output (27 kV, and 15 3 MW) is operational at ITER-India laboratory a 1.5-MW Diacrode-based RF source to be used for ion system. The controller IC-HVPS designed LabVIEW Real-time (RT) peripheral component interconnect eXtension Instrumentation (PXI) support all control monitoring operations of the pulse step modulation-based supply. Besides regulation voltage, supports essential features like fast dynamics, low ripple, protection...
High Frequency Power supply (HFPS) is used for various applications like AM Transmitters, metallurgical applications, Wireless Transfer, RF Ion Sources etc. The Source a Neutral beam Injector at ITER-India uses inductively coupled power source (∼1 MHz). Switching converter based topology to generate 1 MHz sinusoidal output expected have advantages on efficiency and reliability as compared traditional Tetrode tubes oscillators. In terms of Electronics, thermal coupling issues are major...
Ion Cyclotron High Voltage Power Supply (IC-HVPS) with dual output (27kV & 15kV, 3MW) is operational at ITER-India lab a 1.5 MW Diacrode based RF source to be used for ICRF (Ion RF) system. The controller ICHVPS designed LabVIEW Real-time (RT) PXI support all control and monitoring operations of the Pulse Step Modulation (PSM) power supply. Besides regulation voltage, supports essential features like, fast dynamics, low ripple protection loads. This managed by close integration between RT...
A functional approach has been used to define functions & responsibility sharing of each Local Control Unit (LCU) and Ion Cyclotron Heating Current Drive (IC H&CD) Plant System (IC-PSC). The resulting architecture the IC H&CD control system is detailed in this paper. paper highlights study management fast radio-frequency (RF) arc protection across subsystems. Lastly, a possible hardware compliant with one described.
Pulse Step Modulation based High voltage power supply has played significant role in fusion research. Multi-Secondary transformers are invariably used for generation of tens kV range outputs with fast (μS order) transient response. In this scheme, large numbers isolated sources connected series to generate the output. Isolated can be achieved by number separate or single unit multi-secondary transformer. Naturally, a transformer having secondary windings (~40) on core is preferred solution...
A solid state High Frequency (HF) 1 MHz, 40 kW source is intended for plasma formation in a neutral beam by inductive coupling of RF power. An important design feature such an HF its ability to sustain large transient swings load (due impedance transition on microsecond time scales). Power Supply (HFPS) has been configured with multiple Class-D H-bridge inverters modules using latest generation switching semiconductors. Each module capable delivering 3 power, then magnetic combiners and LC...
ITER-India is responsible to deliver nine (8+1 spare) ICH & CD Power Sources ITER. Each power source capable 2.5 MW at 35 65 MHz frequency range with a load condition up VSWR 2:1. For remote operation of different subsystems, Local Control Unit (LCU) developed. LCU developed using PXI hardware and Schneider PLC Lab VIEW-RT developmental environment. All the protection function amplifier running on 7841 R module that ensures hard wired logic. There are three level function- first by supply...
Multi-converter based High Voltage Power Supplies (HVPSs) find application in multi-megawatt accelerators, RF systems. Control system for HVPS must be a combination of superior parallel processing, real time performance, fast computation and versatile connectivity. The hardware platform is expected to robust, easily scalable future developments with minimal overheads. This paper describes development control on Zynq All Programmable SoC (System Chip) HVPS. Typical mechanism involves...
Power Transformers with more than one secondary winding are not uncommon in industrial applications. But new classes of applications where very large number independent secondaries used becoming popular controlled converters for medium and high voltage Cascade H-bridge drives Pulse Step Modulation (PSM) based power supplies such Regulated (Fig. 1) 35-100 kV, 5-10 MW output range fast dynamics (<TEX>${\mu}S$</TEX> order) uses transformers. Such widely fusion research. Here series connection...
Mega watt particle accelerators like Neutral Beam Injectors draw electrical power for Plasma formation, Ion Extraction at elevated potential of ~100kV, infact the water cooling lines, gas feed lines are also floating 100kV. Usually supplies, hydraulic/gas station typical Injector placed in a separate building/location. In such scenario, large coaxial transmission used to support transport, hydraulic & providing isolation This paper presents electrostatic analysis complex configuration line....