机构地区: 湖南大学
出 处: 《电气传动》 2006年第5期29-32,共4页
摘 要: 三电平逆变器的直流侧电压平衡问题直接影响着逆变器及其电机调速系统的可靠性。为此,分析了空间矢量对三电平逆变器中点电位波动的影响,并提出了一种抑制中点电位波动的实时控制方法。仿真结果验证了所提出的控制方法是有效的。 DC-voltage balance is one of the key aspects that affects the reliability of three-level inverter and its electric drive system. Therefore, the influence of space vectors on the neutral-point potential fluctuation is investigated in this paper, and a real-time control method is presented to control the neutral-point potential fluctuation. It is verified by simulation results that the proposed control method is practicable.
领 域: [电气工程] [自动化与计算机技术] [自动化与计算机技术]