Improvement on the series control strategy for ITER AC/DC converters

Zheng, Xinxin; Tao, Jun; Zhu, Meiling; Fan, Renjing; Wu, Yanan

doi:10.1016/j.fusengdes.2020.111942

Cited by 5 publications

(1 citation statement)

References 7 publications

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“…To speed up the China Fusion Engineering Test Reactor (CFETR), a high‐power superconducting magnet test power supply is designed in the Comprehensive Research Facility for Fusion Technology (CRAFT) [1]. Currently, the technology of thyristor rectification is used in the poloidal field power supply (PFPS) of nuclear fusion Tokamak devices [2, 3]. Thyristors are gradually replaced by high‐power full‐control devices, such as IGCT and high‐power IGBT, such as IGCT and high‐power IGBT, whose switching frequency is dozens of times higher than thyristors [4, 5].…”

Section: Introductionmentioning

confidence: 99%

Finite‐time observer and current sharing control for disturbance compensation of parallel H‐bridge converters

Chen,

Fang,

Yang

et al. 2023

IET Control Theory & Appl

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Both electric vehicles and Tokamak power supply use multiple parallel converters to realize high current operation in four quadrants. A finite‐time current sharing control algorithm based on disturbance compensation is proposed to improve the converter system's dynamic and steady‐state performance so that the system can achieve the required load current and branch‐current sharing in a finite time. In the proposed algorithm, this paper adopts a finite‐time observer for unknown disturbances in the converter system and load circuit due to disturbances, such as unknown inductance and resistance in the converter system. The results show that the load current control overshoot is minimal, and the dynamic performance of each branch current is higher than the traditional control algorithm.A finite‐time current sharing control algorithm based on disturbance compensation is proposed so that the converter system can achieve the required load current and branch current sharing in a finite time.

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Section: Introductionmentioning

confidence: 99%