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 |
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DOI: |
中文关键词: 托卡马克 电压模式 灰色预测 均流控制 |
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 |
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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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