Research And Realization Of New Detection Method For APF

Active Power Filter-APF can compensate the harmonic wave and reactive current that is from power network and load. So APF has become one of important method to solve the harmonic wave and reactive current problem, and a lot of country have attend it's development. To realize the compensation of harmonic wave and reactive current with APF, the research hot point is how to detect harmonic wave and reactive current quickly and accurately, and to use good control method.First of all, This thesis analyze the reason of harmonic wave producing, and introduce the instantaneous reactive power theory. After analyze the APF working principle, the thesis bring up a way to detect harmonic wave and reactive current that is use voltage feedback to detect harmonic wave and reactive current.There is the introducing of basic principle of the detecting way in this thesis. Through simulation we can know it have the same calculation result with that be counted by instantaneous reactive power theory, But it is so simple and quick, that can be use as a real time arithmetic.It is more suitable to realize the APF system. The thesis also designed and realized the hardware and software of APF with DSP2407.