Adaption of the Current Load Model to Consider Residential Customers Having Turned to LED Lighting

Recent measurements show that the substitution of General Incandescent Lamps by the high efficiency LEDs changes the behavior of the modern residential customers. They consume less active power and behave capacitive in the evening. Actually, also the extended load models, which consider the load composition and power factors of individual load subcategories, describe an inductive behavior of the load during the whole day. This paper presents an adapted load model that considers residential customers having turned to LED lighting. The current load models are adapted to reflect the estimated load composition and the recent measurements. The corresponding ZIP-coefficients are calculated and provided for download in a public data repository. They change during the day and reach high values when the reactive power consumption of the residential customer changes the sign. In this case, the capacitive and inductive power contributions of the single load devices within the residential customer plant compensate each other.