Review and analysis of the AC/DC converter of ITER coil power supply

Fu, Peng; Gao, Ge; Xu, Liqiang; Song, Zhiquan; Sheng, Zhicai; Oh, Jong-Seok; Benfatto, I.; Tao, Jun; Mankani, Ashok; Neumeyer, C.

doi:10.1109/apec.2010.5433479

Cited by 48 publications

(6 citation statements)

References 6 publications

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“…International Thermonuclear Experimental Reactor (ITER) is an international collaboration project located in south France to demonstrate the scientific and technological feasibility of fusion energy for peaceful purposes [2], [3]. The ITER poloidal field (PF) AC/DC converter system mainly provides the controlled current thereby implementing the plasma shape and position control, which is one of the key systems for ITER [4], [5].…”

Section: Introductionmentioning

confidence: 99%

System Realization of CASHIPS DC High Power Test Facility

Chen

Huang

et al. 2019

CPSS TPEA

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Aims to complete the test of the International Thermonuclear Experimental Reactor (ITER) poloidal field (PF) converter system, and to meet future continuous upgrading needs of a modern industrial power system and scientific research, direct current (DC) high-power test facility of Hefei Institutes from Physics science, Chinese Academy of Sciences (CASHIPS) is built in 2011. As the largest DC high-power test facility in China, the rated steady state DC current is 120 kA and the pulse peak current is 500 kA. Four thyristor-based AC/DC converter modules are paralleled to handle this huge current. In May 2017, 15 testing items are accredited by the China National Accreditation Service (CNAS) for Conformity Assessment . Up to now, the test for 17 devices of 16 companies and manufacturers in the world have been completed. In this paper, the topology and the control of DC High-Power test facility are presented. In addition, the testing capability and the completed tests of DC high-power test facility are illustrated.Index Terms-120 kA steady state DC current, 500 kA pulse peak current, DC high-power test facility.

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Section: Introductionmentioning

confidence: 99%

System Realization of CASHIPS DC High Power Test Facility

Chen

Huang

et al. 2019

CPSS TPEA

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“…The poloidal field (PF) converter unit, which is an important part of ITER coil power supply system, plays an essential role in the plasma shape and position control in the vertical and horizontal directions [1]- [3]. DC busbar is an important component for the ITER PF converter unit to transfer dc current from an ac/dc converter to a dc reactor.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Temperature Rise in Water-Cooling DC Busbar Through Coupled Force and Natural Convection Thermal-Fluid Analysis

Guo

Song

et al. 2016

IEEE Trans. Plasma Sci.

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This paper describes the coupled force and natural convection analysis technique to calculate the increase in temperature of the international thermonuclear experimental reactor poloidal field converter water-cooling dc busbar. The increase in temperature of the busbar is due to Joule's losses and heat dissipation by cooling water and air convection. Joule's loss is calculated by the 3-D eddy-current field analysis and used as the input for the thermal fluid analysis. Energy conservation equation is coded and the primary natural convection coefficient on the external surface of the dc busbar is calculated. An interactive procedure is proposed to predict the busbar operation behavior. Two sets of computational fluid dynamics analysis are presented to calculate the temperature distribution of the dc busbar, cooling water, and air. One is to solve the force convection heat transfer problem inside the busbar cooling water channel with the primary equivalent natural convection coefficient calculated in energy conservation equation. The other is to solve the natural convection behavior on the dc busbar external wall with the equivalent force convection coefficient on the busbar internal cooling channel. The final temperature distribution result is determined by the two heat convection coefficient difference between these two simulations. The accuracy of the technique developed is verified by comparing the measured and the simulated temperature in a prototype thermal test, which proves the high efficiency and accuracy of the proposed approach in the design of water-cooling dc busbar.Index Terms-DC busbar, force and natural convection, international thermonuclear experimental reactor (ITER) poloidal field (PF) converter, temperature, thermal-fluid, water cooling. NOMENCLATURET 0 , T in Ambient temperature and water inlet temperature. T b , T w Average temperature of dc busbar and water. a, b, l Busbar width, height, and length. V Cooling water velocity. r Cooling channel radius. h a , h w Natural and force convection coefficient. P g Busbar ohm heat load. P w , P a Busbar heat loss to water and air. ρ r Specific resistance of the aluminum.

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“…International Thermonuclear Experi-mental Reactor (ITER) is an international research and engineering project to demonstrate the feasibility of fusion energy [1]. The power system is divided to three aparts: the distribution system; the auxiliary heating and current drive system and the coil system.…”

Section: Introductionmentioning

confidence: 99%

The Research of High-Performance Integrator for ITER Poloidal Field Converter Measurement System

Zhang

Jiang

et al. 2015

J Fusion Energ

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Rogowski coil is used to measure the current of the thyristor in ITER poloidal field converter, the output of the Rogowski coil is the differential of current over time, so the result should be synchronized with input signal by using the integrator. In the process of measuring, the integral drift is caused by the input offset current, input offset voltage and the input bias current, which produces errors which will be larger after a long time, so something should be taken to decrease the errors. Then a real-time way of compensation was proposed in this paper based on the foregoing analysis. According to the method, the highperformance integrator was designed and tested to fulfill the demand of decreasing the errors by simulation analysis and experimental test.

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Review and analysis of the AC/DC converter of ITER coil power supply

Cited by 48 publications

References 6 publications

System Realization of CASHIPS DC High Power Test Facility

System Realization of CASHIPS DC High Power Test Facility

Prediction of Temperature Rise in Water-Cooling DC Busbar Through Coupled Force and Natural Convection Thermal-Fluid Analysis

The Research of High-Performance Integrator for ITER Poloidal Field Converter Measurement System

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