Design and Optimization of Battery Liquid Cooling System Based on Sliding Mode Control

Aiming at the significant heat generated by high power density batteries in the process of charging and discharging at high current, a design and optimization scheme of battery liquid cooling system based on sliding mode control is proposed in this paper. Firstly, the paper deeply analyzes the important role of the battery thermal management system in ensuring the safety of the battery pack, extending the service life and improving the overall performance, and establishes the effectiveness and superiority of the liquid cooling method. In this study, an efficient and dynamic response liquid battery cooling system was designed. The system uses the fluid cooling medium to directly contact the inside of the battery, and effectively absorbs and takes away a large amount of heat during the battery operation by precisely regulating the flow rate and temperature of the coolant. The core is the introduction of sliding mode control theory, according to the real-time change of battery temperature, dynamically adjust the control strategy of the cooling system, to ensure that the battery temperature is always maintained in the best working range, to prevent overheating phenomenon. In the experimental part, the design process, key parameter selection and simulation verification process of the liquid cooling system based on sliding mode control are described in detail. The results show that compared with the traditional constant cooling strategy, the system has significant advantages in rapid response, temperature stability and energy efficiency. In addition, this study also discusses the problems and challenges that may be encountered in the practical engineering application of the liquid cooling system, puts forward the corresponding solutions, and looks forward to its application prospects in new energy vehicles, energy storage power stations and other fields. In summary, this paper not only provides a new method of battery thermal management, but also provides theoretical basis and technical support for the optimization design of battery liquid cooling system based on sliding mode control, which has important theoretical value and practical significance for promoting the development of China and the global new energy industry.