Review of current harmonic voltage simulation and allocation methods

Current standards defining harmonic voltage emission levels and network planning levels are defined within the AS61000 series standards. AS61000.3.6 defines methods for electrical utility suppliers to allocate harmonic voltage distortion limits to customers connecting to the network. This is aimed at limiting the voltage distortion to below the network planning levels. However AS61000.3.6 does not investigate low fault level networks or SWERS (Single Line Earth Return). This paper investigates harmonic voltage simulation methods along with an investigation into current harmonic voltage allocation methods.