The design of power load management terminal base on DSP

After specifying the function and performance requirements of power load management terminal unit for the power system, and analysing harmonic analysis, alternating current signal FFT, voltage and reactive power compensation control, measure precision calibration algorithms etc, the dissertation introduced the DSP chip TMS320F2812 and the energy metering chip ADE7758 to structure the implementation scheme of load management terminal. This scheme utilized the inside A/D converter to realize the harmonic analysis and the direct current measure; The method of line accumulation is selected to calibrate ADE7758 can improve system's measure precision and calibration efficiency. Meanwhile, made use of voltage and reactive power compensation control to optimize the systematic operation state; And it also realized remote software updating function which base on the In-application Program capability of FLASH. The communication function realized the real-time and high-speed data transmission by GPRS.