The experimental evaluation and monitoring for power quality status of inverter-driven air conditioners according to climate change

Abstract

Extreme climate events have significantly increased over the past decade in many regions, leading to the increase in efforts to understand the influence of climate change on the electrical equipment and the grid. According to the unprecedented observational temperature records, the operational characteristic of distributed individual electrical devices, such as air conditioners, has become a concern to power utilities, for the power quality problems generated by the inverters. Although these devices are guaranteed that the harmonic is below the limit of IEEE 519-2014 standard, there is no test showing their power quality status under extreme climate events. In this paper, the experimental evaluation of inverter-driven air conditioners in an enthalpy difference lab is provided under extreme temperature environments compared with current standards. The monitoring method of such distributed residential devices is also given to analyze the power quality status.