Simulation of supraharmonics: A Compact Fluorescent Lamp (CFL) in single operation

Interaction of some low power LED lamps within 2–150 kHz (supraharmonics)

“…However, because of size constrains these electrolytic capacitors seem to range below 47uF , as it was reported in [8] and [20] with regard to previously measured LED lamps, then the DC-DC Power Converters supply curly DC voltages. According to some previous measurements [19] [20], lowpower LED lamps show different Current vs. Voltage waveforms (henceforth i-v curves) under normal operation, as it can be seen in Fig. 2 for different rated-power devices.…”

“…Power Quality researchers have made efforts to show some features of these emissions by means of Frequency domain (i.e. Fast Fourier Transform algorithm) and Time-Frequency domain, as well as to explain the interaction of disturbances using Northon equivalent circuits [17], [19]. However, the interaction of steady-state emissions within 2-150 kHz between devices in real electrical installations is still under research, as well as the emitting or receiving behaviour of appliances [9], [17], [20].…”

“…Measurements and simulations of emissions within 2-150 kHz contribute to understand these phenomena and allow researchers to state their eventual impact on either current and future distribution grids [13]- [19]. On the one hand, the identification of emissions from devices under real conditions are performed using measurement systems and signal processing methods [1]- [9].…”

“…On the one hand, the identification of emissions from devices under real conditions are performed using measurement systems and signal processing methods [1]- [9]. On the other hand, simulations using appropriated models allow researchers to specifically vary some circuit parameters, evaluate foreseeable scenarios, or even estimate how could phenomena behave in a qualitative, indicative way [10], [14], [19]. This paper aims to illustrate possible interaction between some lighting devices at supraharmonic range using measurements and simulations of low-power LED lamps, supplied by a controllable power source.…”

Measurement and simulation of power quality disturbances between 2–150 kHz from compact fluorescent lamps

“…The simulated CFL Ballast circuit it is summarized in Figure 1Typical circuit stages in CFL devices.figure.caption.1. Inverter stage in Figure 1Typical circuit stages in CFL devices.figure.caption.1 is simulated as a BJT Half Bridge Resonant Inverter Self-Oscillating ballast, and it is described in Reference [9]. Details about circuit simulation are shown and explained in Reference [9].…”