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This paper describes the simulation results and hardware implementation of an inexpensive, low-complexity LED based indoor positioning system. Localization by multiple LEDs estimation model (MLEM) approximates position of a mobile receiver by the acquisition of positional information from LED transmitters. Multiple LED orientation can either be with or without overlap. Receivers in a no-overlap LED...
This paper investigates correlations of Partial Discharge (PD) measurements of associated statistical parameters from phase-charge-number Φ-q-n plots from IEC60270 PD measurements and High Frequency Current Transformer (HFCT) Φ-peak-n plot PD measurements. These are also compared with Electromagnetic Interference (EMI) Radio Frequency (RF) measurements. The three methods record simultaneously PD activity...
This paper presents simultaneous measurements using three methods of partial discharge detection on 15kV high voltage cable sections with artificially created fault geometries, namely a semiconductor point and a large and small metal particle embedded on the insulation. These faults are simultaneously investigated using two 20MHz bandwidth HFCTs and an IEC60270 system. The peak value of one of the...
This paper presents experiments carried out on sections of typical subsea llkV HV cable with an artificially created fault geometry, namely a semiconductor point fault which is then compared to a clean termination (no point fault) with the fault removed. Partial Discharge (PD) measurements using IEC60270 phase-charge-number (PQN or (Ф-q-n), peak High Frequency Current Transformer (HFCT) (Ф-q-n, Low...
The Solar Photonic Optoelectronic Transformer (SPOT) is one of the components of the SolarBrane, a Building Integrated Photovoltaic (BIPV) system developed by SolarEmpower Ltd. Recently, an optimised design for the optical concentrator in the SPOT has been proposed to further improve its performance. The optimised design uses a dielectric totally internally reflecting concentrator (DTIRC) based on...
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