Research on Reliability Improvement of Inverter Air Conditioning Communication in Harsh Electromagnetic Environment
Inverter air conditioners gradually replace fixed-frequency air conditioners due to their energy-saving,comfortable and other advantages.The harmonics and electromagnetic interference generated by the switching of inverter air conditioners'power devices are large.This paper analyzes the problem of abnormal shutdown caused by interference in the communication network of external,internal and wire controllers during the research and development process of a certain inverter air conditioner.The reasons for the interference of inverter air conditioners and the mechanism of shutdown caused by interference are discussed,and solutions are proposed to strengthen the verification,redundant coding of important data,and filtering processing of receiving software.The new solution has been proven to effectively solve the problem of abnormal shutdown of air conditioners caused by data error reception,and improve the reliability of communication.