Characterisation of harmonic interactions between electric vehicle battery chargers and PV inverters

This paper presents and discusses some initial results of the measurement and assessment of the harmonic characteristics of electric vehicle (EV) chargers and photovoltaic (PV) inverters, which are tested individually and when connected in different combinations to the same phase of a programmable three-phase LV supply in the laboratory. The range of possible harmonic interactions is assessed for three source impedance values and three characteristic supply voltage waveforms. The presented results can help in understanding how the exchange of energy between the grid, power electronic loads (EV chargers) and inverter-interfaced distributed generation (PV inverters) could be assessed in terms of the anticipated “smart grid” transformation of electricity networks.

[1]  Vladimir Vujicic,et al.  Low-frequency stochastic true RMS instrument , 1999, IEEE Trans. Instrum. Meas..

[2]  Vladimir Vujicic.  Generalized low-frequency stochastic true RMS instrument , 2001, IEEE Trans. Instrum. Meas..

[3]  A. Gil-de-Castro,et al.  FPGA-based embedded system architecture for power quality measurements , 2012, 2012 IEEE 15th International Conference on Harmonics and Quality of Power.

[4]  W. M. Grady,et al.  An investigation of harmonics attenuation and diversity among distributed single-phase power electronic loads , 1994 .

[5]  Peter Schegner,et al.  Characterization of small photovoltaic inverters for harmonic modeling , 2014, 2014 16th International Conference on Harmonics and Quality of Power (ICHQP).

[6]  Vladimir Vujicic,et al.  Accuracy limit of high-precision stochastic watt-hour meter , 2000, IEEE Trans. Instrum. Meas..

[7]  M. J. Samotyi,et al.  An investigation of harmonics attenuation and diversity among distributed single-phase power electronic loads , 1994, Proceedings of IEEE/PES Transmission and Distribution Conference.

[8]  M. F. Wagdy,et al.  Validity of uniform quantization error model for sinusoidal signals without and with dither , 1989 .

[9]  J. von Neumann,et al.  Probabilistic Logic and the Synthesis of Reliable Organisms from Unreliable Components , 1956 .

[10]  Vladimir Vujicic,et al.  Further Generalization of the Low-Frequency True-RMS Instrument , 2005, IEEE Transactions on Instrumentation and Measurement.

[11]  M. A. Sokola,et al.  A Novel Method for Stochastic Measurement of Harmonics at Low Signal-to-Noise Ratio , 2009, IEEE Transactions on Instrumentation and Measurement.

[12]  Aleksandar Radonjic,et al.  Stochastic Measurement of Power Grid Frequency Using a Two-Bit A/D Converter , 2014, IEEE Transactions on Instrumentation and Measurement.