A switching loss study in SPWM IGBT inverter
A switching loss study in SPWM IGBT inverter
复制标题
SPWM IGBT逆变器开关损耗研究
DOI：
--
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
A. Maswood
中科院分区：
文献类型：
--
作者：
A. Maswood
这项工作讨论了计算 IGBT 开通、关断和通态能量损耗的精确数学方法。对瞬时电压和电流值进行研究、线性化并用于制定计算 IGBT 开关损耗所需的方程。该逆变器采用通常称为正弦 PWM (SPWM) 的开关模式。通过这种流行的开关模式，常见的三相逆变器会产生开关损耗。开发了描述每个开关状态的波形。制定了描述开关波形的数学方程。将净开关损耗与逆变器的净开关损耗进行比较，以了解逆变器中的损耗过程。
This work discusses an exact mathematical approach of calculating the IGBT turn-on, turn-off and on-state energy losses. Instantaneous voltage and current values are studied, linearized and employed to formulate the equations needed to calculate the IGBT switching loss. The inverter employs a switching pattern commonly known as sinusoidal PWM (SPWM). With this popular switching pattern, switching losses are derived for a common 3-phase inverter. Waveforms describing each switching states are developed. Mathematical equations describing the switching waveforms are formulated. The net switching loss is compared with that of the inverter to make sense of the process of loss in an inverter.