In the application of our Load Demand Controller (LDC) an 800 Hz control signal is inductively coupled on to the phase wire of a low voltage distribution system using IPT technology. The coupled voltage may be ½ to 1 Volt peak to peak at a frequency of 800 Hz but over a relatively large distance this voltage may attenuate to 100 mV but all the while the mains voltage continues at 230 Vrms 50 Hz. We need to be able to extract this 800 Hz control signal and get the useful data that it contains. The difficulty is that when the signal is small – perhaps as low as 100 mV (p-p) - there is still a 50 Hz signal of 650 V p-p at 50 Hz that is noise as far as the control detection is concerned, but ultimately is the power source so it cannot be eliminated. The data at 800 Hz is carried in the 800 Hz frequency so that after detection the information must be decoded.
The project is to design and make an electronic system that can isolate the 800 Hz signal and decode it in a usable LDC system where all of the phases are treated independently. The project will require a laboratory demonstration system followed by a field application at Ardmore.
Undergraduate
The project is to design and make an electronic system that can isolate the 800 Hz signal and decode it in a usable LDC system where all of the phases are treated independently. The project will require a laboratory demonstration system followed by a field application at Ardmore.
None
Lab allocations have not been finalised