Load type: non-ferrous metal refining and chemical industry all use the electrolysis process, so they cannot do without high-power rectifiers. The load fluctuation is small. For the high-power three-phase full-control bridge 6-pulse rectifier device, the harmonic generated by the rectifier device accounts for 25-33% of the fundamental wave, and the characteristic harmonic generated is 6N±1 times. The rectifier itself is a source of harmonics during operation, but at the same time its trigger control system is affected by voltage harmonics. The commutation process of the rectifier will cause a "gap" in the voltage, which affects the detection of voltage zero crossings and the synchronization of control triggers.

Recommended solution: IVL-RCS static filter compensation component + IVL-APF active filter.

Recommended solution: In the low-voltage power distribution system, configure IVL-RCS static filter compensation components to compensate for reactive power, and configure IVL-APF active filters to filter out harmonics to achieve the best governance effect.

Improve power factor, avoid power fines, reduce production costs;

reduce consumption and energy saving, reduce production costs;

reduce the impact of harmonics on rectifiers, ensure the reliability and safety of power supply;

reduce the impact of harmonics on the process control system Influence and guarantee the quality of users’ products.