Abstract
In today’s scenario, the estimated exponential growth of Electric vehicles (EVs) has raised the concern about the spike in electricity demand. Vehicle-to-Grid (V2G) technology has emerged as an effective solution to support the grid that operates EV in charging and discharging mode. V2G establishment involves three elements amongst the bidirectional metering plays a significant role. This paper aims to design and develop a cost-effective three-phase Net Meter at technology readiness level (TRL) 9 for V2G enabled charging stations at levels 1 and 2. It allows the bi-directional flow of current and generate bills at an associated subsidize rates. A scalable design to serve two different charging levels is adopted to achieve higher flexibility without any change in the hardware. The compilation is done considering the automotive-grade with the International Electrotechnical Commission (IEC) standards to assure class 1 accuracy. By implementing the electrical quantities defined in IEEE std. 1459-2010, coherent sampling is adopted to compute Fast-Fourier Transform (FFT). It shows a better spectral resolution and eliminates the overheads of windowing selection. To provide a cost-effective solution, C2000 Digital Signal Processor (DSP) based TMS320F28069 microcontroller is used in the application. The prototype assures the automotive industry standards (AIS) for electromagnetic compatibility in the practical environment. In experimentation, configured two test benches for three test sets operating under different conditions. The result has shown class 1 accuracy over a wide range and better harmonic detection in real-time. • Design of a cost-effective three-phase Net Meter for V2G enabled charging stations. • Net Meter is examined with AIS to verify compliance in the automotive application. • The proposed Net Meter is validated with a real-time charger in the V2G application.
Published Version
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