Development of Adaptive Control for Pulse-Electro Thermal De-Icing

在诸如汽车、飞机、火车头和船舶的许多应用中，透明挡风玻璃的除冰或除冰是关键的操作问题。这些应用中的除冰过程消耗过多的时间和能量，因为影响霜形成的可变参数，例如环境条件、挡风玻璃几何形状和车辆速度。脉冲电热除冰（PETD）技术是一种能在很短时间内有效除冰的方法。PETD技术利用一个强大的电脉冲，导致在霜和挡风玻璃之间的接触表面处融化冰的界面层。预设的控制器不能提供最佳的效率，并且可能需要最终用户进行手动 ** 调整，因为PETD技术的效率取决于许多可变参数，例如 ** 外部温度、霜类型和厚度、挡风玻璃几何形状和倾斜度以及功率可用性。因此，需要 ** 自适应控制方法来调制必要的输出参数，如脉冲功率，频率，占空比 ** 和基于可变输入参数的分布。该自适应控制单元应即时测量这些外部 ** 参数，并通过内部控制算法运行它们，以便提供最佳输出参数，从而实现最佳 ** 效率。因此，本研究项目的目标是开发一种自适应控制策略，可以有效地用于 ** 在汽车挡风玻璃中操作PETD技术。

De-icing or defrosting a transparent windshield is a critical operation concern in many applications such as cars, airplanes,**locomotive, and sea vessels. The de-icing process in these applications consumes excessive time and energy due to the variable**parameters that affect the frost formation such as ambient conditions, windshield geometry, and the vehicle speed. Pulse-Electro**Thermal De-Icing (PETD) technique is proposed as an advantageous method that can remove the ice efficiently in a very short**time period. PETD technique utilises a powerful electrical pulse that leads to melting the interfacial layer of ice at the contact**surface between the frost and windshield glass. Pre-set controllers wont provide premium efficiency and may require manual**adjustment from the end user because the efficiency of the PETD technique depends on many variable parameters such as the**outside temperature, frost type and thickness, windshield geometry and inclination as well as the power availability. Hence,**adaptive control approach is needed to modulate the necessary output parameters such as the pulse power, frequency, duty cycle**and distribution based on the variable input parameters. This adaptive control unit should instantaneously measure these external**parameters and run them through internal control algorithm in order to provide the optimum output parameters to achieve the best**efficiency. Therefore, the objective of this research project is to develop an adaptive control strategy that can effectively be used to**operate the PETD technique in an automotive windshield.**