Our country high voltage inverter in the technology already has make a spurt of progress of development, through independent research and development have a lot of international advanced technology. Experts predict that in the future, technology and product development will present three big trends.
    A power unit series multilevel techniques are still the mainstream market. At present, the power unit cascaded multilevel high voltage frequency converter technology in the domestic market share has more than 2/3, including the Lidehuafu, Eastern Hitachi, Shandong scenery and so on high voltage frequency converter production are used in this technique.
    The two is to develop in the direction of large power. Large power inverter market share a basic grasp of foreign manufacturers hands, with the domestic enterprises to raise the level of technology products, domestic inverter power has gradually improved. The three is with the high voltage frequency conversion technology maturity, will greatly expand the process control for variable frequency speed regulation demand. If applied, hoist, electric locomotive traction system and other industrial fields and high-end military and other fields, to further expand the application field of high voltage frequency conversion speed regulation technology.