A novel scheme to measure the power of AC system with FPGA

Nowadays, most digital power measurement is based on DSP. This paper proposed a field programmable gate array (FPGA) implemented digital elements in the power measurement of AC system. The main difference is that FPGA allow concurrent operation, enabling high performance which levels achieved are orders of magnitude greater than those obtained with traditional digital signal processor. The design scheme has been developed using a hardware description language (VHDL), which provides great flexibility and technology independence. The measuring system has been implemented as simple as possible, while maintaining good accuracy and dynamic response. Simulation and experimental results show the feasibility of our scheme.