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

除冰或除霜透明挡风玻璃是一个关键的操作问题，在许多应用，如汽车，飞机，**机车和船舶。由于环境条件、挡风玻璃几何形状和车速等可变参数会影响霜的形成，因此在这些应用中除冰过程会消耗过多的时间和能量。脉冲电热除冰（PETD）技术是一种在极短时间内有效除冰的有利方法。PETD技术利用强大的电脉冲，使霜冻与挡风玻璃接触表面的冰界面融化。预设控制器不能提供优质的效率，可能需要最终用户手动调整，因为PETD技术的效率取决于许多可变参数，如外部温度、霜型和厚度、挡风玻璃几何形状和倾斜度以及电力可用性。因此，需要采用自适应控制方法，根据可变的输入参数来调制必要的输出参数，如脉冲功率、频率、占空比和分布。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，以提供最佳输出参数，以达到最佳效率。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**操作汽车挡风玻璃中的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.**