Optimization of Liquid Cooling System in Power Electronic Inverters for Electric Vehicles

电动汽车逆变器中电力电子器件的热管理是影响系统成本、体积、效率和可靠性的关键因素。液体冷却是实现这一目的的一个可行的选择。然而，为了实现峰值功率运行，必须对现有的液体冷却系统进行优化。今天的液体冷却系统由一系列圆柱形的延伸表面组成，这些表面浸入冷却通道中，冷却剂通过该通道循环以获取热量。在对现有制度作出改变**之前，有必要了解现行制度的表现。为此，将对**液体冷却系统进行计算建模。对该系统内的流动和换热进行分析。将根据这一分析对现有系统进行**改进。改进后的设计将进行计算研究，以评估其**性能。这项提议的目的是改善目前液体冷却系统的热性能，从而**使电动汽车逆变器中的电力电子元件能够更有效地使用。

Thermal management of the power electronics devices in an electric vehicle inverter is a critical factor that influences cost, size,**efficiency and reliability of the system. Liquid cooling is a viable option for this purpose. However, for peak power operation, the**existing liquid cooling system must be optimized. The present day liquid cooling system consists of an array of cylindrical extended**surfaces that are immersed in a cooling channel through which the coolant is circulated to extract heat. Prior to making changes to**the existing system, it is necessary to understand the performance of the present system. To this end, computational modelling of**the liquid cooling system will be carried out. The flow and heat transfer within this system will be analyzed. Improvements will be**made to the existing system based on this analysis. The improved designs will be computationally investigated to evaluate its**performance. The objective of this proposal is to improve the thermal performance of the present liquid cooling system, thereby**enabling more efficient use of the power electronics components in an electric vehicle inverter.