Projects:2018s1-235 An Online 10kHz to 1MHz Impedance Analyser

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The project aims to utilise power line communication (PLC) technology to send PLC signals onto the transmission lines and thus calculate the impedance of the load from the voltage and current signals at the receiving end. Power line communication uses the existing power lines as a medium to transmit both electric power and data simultaneously. The focus of the project is the design of the signal injector and the current sensor used for injecting and extracting the PLC signal. High pass filters are also designed in order to reject the 50Hz mains signal from the PLC signal injector and the sensors. As a result, the impedance analyser should be able to cover the frequency range of 10kHz to 1MHz and provide a reliable impedance measurement, which can be done with the assistance of the pico-scope and LabVIEW software.

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