逆变器功率模块由多个 IGBT 和二极管组成，可以以各种布局配置进行连接。ABB 5SHX2645L0002 IGBT模块不同的布局布局以及制造工艺的变化会导致逆变器 IGBT 之间热阻的不确定性。这将导致与制造商在数据表中提供的典型通用数据存在偏差，从而导致电机驱动 IGBT 模块的设计和热特性不当。DC 组电容器之间的不均匀热分布会导致系统级可靠性预测出现高达 20% 的偏差。因此，可以预期，对于 IGBT，热阻抗的变化将对逆变器寿命评估产生重大影响。此外，关于 IGBT 模块不对称布局对功率器件可靠性影响的研究 表明，热阻抗在 IGBT 的热负荷中起着至关重要的作用，并且固有地影响着它们的预期寿命。然而，热阻抗分布不均对IGBT功率模块可靠性评估的影响尚未得到分析和量化。
5SHX2645L0002
5SHX0660F0002采用可控硅技术对照明系统进行控制具有：电压调节速度快，精度高，可分时段实时调整，有稳压作用，采用电子元件，5SHX0660F0002相对来说体积小、重量轻 低。但该调压方式存在一致命缺陷，由于斩波，使电压无法实现正弦波输出，还会出现大量谐波，形成对电网系统谐波污染，危害 ，不能用在有电容补偿电路中。控制极触发电流在规定的环境温度下，阳极—阴极间加一定电压，使可控硅从关断状态转为导通状态所需要的小控制极电流和电压。维持电流在规定温度下，控制极断路，维持可控硅导通所必需的小阳极正向电流。
5SHX2645L0002
The inverter power module consists of multiple IGBTs and diodes, which can be connected in various layout configurations. The different layout and manufacturing process changes of ABB 5SHX2645L0002 IGBT modules can lead to uncertainty in thermal resistance between inverter IGBTs. This will result in deviations from the typical general data provided by the manufacturer in the data sheet, resulting in improper design and thermal characteristics of the motor driven IGBT module. The uneven heat distribution between DC bank capacitors can lead to up to 20% deviation in system level reliability predictions. Therefore, it can be expected that for IGBTs, changes in thermal impedance will have a significant impact on the life assessment of inverters. In addition, research on the impact of asymmetric layout of IGBT modules on the reliability of power devices shows that thermal impedance plays a crucial role in the thermal load of IGBT and inherently affects their expected lifespan. However, the impact of uneven thermal impedance distribution on the reliability evaluation of IGBT power modules has not been analyzed and quantified.
5SHX2645L0002
5SHX0660F0002 uses thyristor technology to control the lighting system, which has the advantages of fast voltage regulation speed, high accuracy, real-time adjustment in different time periods, voltage stabilization effect, and electronic components. 5SHX0660F0002 is relatively small in size and light in weight. However, this voltage regulation method has a fatal flaw. Due to chopping, the voltage cannot achieve sine wave output, and a large number of harmonics will also appear, causing harmonic pollution and harm to the power grid system. It cannot be used in circuits with capacitor compensation. The small control electrode current and voltage required to switch the thyristor from off state to on state by applying a certain voltage between the anode and cathode at the specified ambient temperature. Maintain the current at the specified temperature, control the pole circuit, and maintain the necessary small anode forward current for thyristor conduction.
There are no reviews yet.