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基于虚拟同步机技术的辅助逆变器并联策略研究

Strategy research on parallel connection of auxiliary inverter based on virtual synchronous generator technology
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摘要 提出了针对列车辅助逆变器基于虚拟同步发电机(VSG)技术的多机组并联控制策略。首先进行了基于VSG技术的数学建模,研究采用虚拟阻抗的预同步技术,搭建VSG和虚拟阻抗的预同步技术Simulink模型,仿真验证了该控制策略的可行性,该方案无需采用传统并联控制的锁相环技术,即可实现辅助逆变器输出电压幅值和相位的同步,而且预同步过程平滑、稳定。最后通过2台160 kVA辅助逆变器并联试验的结果表明基于该策略的并联控制技术具有优良的并联效果。
作者 车向中 陈伟松 许明夏 CHE Xiangzhong;CHEN Weisong;XU Mingxia
出处 《铁道机车与动车》 2020年第6期11-14,23,共5页 Railway Locomotive and Motor Car
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