CAJ | 학술논문

　　针对逆变器的死区效应，给出了一种基于扰动电压观测器的死区补偿算法。该算法采用一个无需任何额外硬件电路和离线测量实验的扰动观测器，以一种在线的方式，估计由死区时间和非理想功率器件的开关特性所产生的d、q轴扰动电压，并经过比例调节器后反馈到两相旋转坐标系中进行电压补偿。该算法具有实现简单、输出波形谐波含量少等特点，并且较好的抑制了零电流箝位现象。仿真结果表明该算法是有效的、可行的。
　　침대역변기적사구효응，급출료일충기우우동전압관측기적사구보상산법。해산법채용일개무수임하액외경건전로화리선측량실험적우동관측기，이일충재선적방식，고계유사구시간화비이상공솔기건적개관특성소산생적d、q축우동전압，병경과비례조절기후반궤도량상선전좌표계중진행전압보상。해산법구유실현간단、수출파형해파함량소등특점，병차교호적억제료령전류겸위현상。방진결과표명해산법시유효적、가행적。
A dead-time compensation algorithm based on disturbance voltage observer was presented for the dead time effects of the inverter. This algorithm used a simple disturbance observer without any additional circuit and off-line experimental measurement, disturbance voltages in the rotor reference dq frame caused by the dead time and nonideal switching characteristics of power devices are estimated in an on-line manner and fed to the rotor reference frame by proportional regulator in order to compensate voltages. The realization of the algorithm is simple and the harmonics in output waveform are small, and suppression of the zero-current clamping effect. The results of MATLAB simulation proved that the proposed algorithm is effective and feasible.