AC voltage frequency filter design of A700 inverter

This study analyzes the output of the filter in the inverter. LC filter is designed to minimize the distortion or spike on the output of voltage and current, the problem of voltage drop on the coil of wire, and the system's frequency resonance. The design takes into account the frequency impedance of the coil of wire and the eddy current in the core of the coil. The design is enhanced to reach the capacity of the blocks and the increasing function of the switching frequency. This design aims to reduce the cost of inverter and determines the optimal switching frequency. This study’s simulations and experiments show that the filter’s limitations have been overcome, and the sensor speed control with the optimal filter works well with the inverter.