电子测量与仪器学报

黄海宏,韦友龙,王海欣.EAST 快控电源灰色预测均流控制研究[J].电子测量与仪器学报,2020,34(8):37-42

EAST 快控电源灰色预测均流控制研究

Research on gray prediction current sharing control of EAST fast control power supply

DOI：

英文关键词:Tokamak voltage mode gray prediction current sharing control

基金项目:国家自然科学基金(11275056)资助项目

作者	单位
黄海宏	1.合肥工业大学电气与自动化工程学院
韦友龙	1.合肥工业大学电气与自动化工程学院
王海欣	1.合肥工业大学电气与自动化工程学院

Author	Institution
Huang Haihong	1.School of Electrical Engineering and Automation, Hefei University of Technology
Wei Youlong	1.School of Electrical Engineering and Automation, Hefei University of Technology
Wang Haixin	1.School of Electrical Engineering and Automation, Hefei University of Technology

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中文摘要:

应对超导托卡马克核聚变实验装置中等离子体的垂直位移快控电源大电流快速响应的要求,使用多组逆变单元并联运行方式。为克服电压模式下各支路参数不同导致各支路输出电流的不一致性,提出基于灰色预测模型的均流控制策略,用其预测下一刻电流上升率,实时动态调整各支路脉冲宽度调制(PWM)占空比,实现快控电源的均流控制。仿真与实验结果表明,基于灰色预测模型的均流控制策略使得各支路输出电流具有较好的一致性,验证了该算法在 EAST 快控电源上应用的可行性和有效性。

英文摘要:

The method of multiple inverters paralleled is presented to meet the need of large current and fast control for the plasma vertical displacement power supply in the experimental advanced superconducting Tokamak. The current sharing control strategy based on gray prediction model in voltage mode is proposed to overcome the inconsistent output current of each branch, which caused by the different parameters of each branch. Current rising rate of each branch of next time can be predicted by this model and adjust PWM duty cycle dynamically in real time, thus current sharing control in voltage mode is achieved. Simulation and experimental results show that the current sharing control strategy based on gray prediction model can get relatively consistent output current of each branch, and the feasibility and the effectiveness of this strategy in EAST fast control power supply are verified.

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