大容量インバータの直流主回路における高調波拡大現象の一抑制法

概要

論文の詳細を見る
In a large-scale inverter system that uses a semiconductor switching device, a rectifier and an inverter are connected through a DC circuit. In this circuit, the harmonic magnification phenomenon is often induced by the inductance of distribution wires and the condenser to absorb the harmonic voltage and current. To suppress this harmonic magnification phenomenon, we propose a new suppression method to use the initial phase of the carrier wave. When some inverters operate in parallel at the same frequency, such as the inverters to drive LSM, it is possible to reduce the specific harmonic component of the total inverter input current due to PWM control by changing the phase of the carrier wave of each inverter. We studied a method of suppressing the magnification phenomenon of the specific harmonic near the resonant frequency of the DC circuit by using this principle and confirmed its performance by the digital simulation.
社団法人電気学会の論文
2005-02-01