This paper analyzes the running characteristics of portal crane, and elaborates the selection principle of motor, inverter and its braking mode and the capacity calculation method of the inverter peripheral equipment when CHV190 crane special inverter is used in portal crane speed adjusting, and finally introduces the application case of CHV190 inverter in portal crane.
The traditional hydraulic anti-shake system has a long response time delay, component loss and other issues, seriously troubling the port machine users, with the in-depth promotion of frequency control in the port machine industry, frequency anti-shake system gradually attracts the concern of majority port machine manufacturers and users, and becomes the mainstream of industry applications with its superior torque control performance and solid stability. The rail suspension anti-shake system in this article adopts INVT CHV190 inverter to overcome the lack of hydraulic anti-shake system, which has significantly weaken the spreader swing, marking another major improvement of domestic inverter application in the port machine industry.
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CHV190 series crane-specific inverter features advanced control theory and excellent torque control performance. Its abundant functions ensure the safety, reliability and high efficiency in an all-around way. In order to satisfy different customer demands, there are various kinds of mature application plans for costumer to choose from, including translational mechanism frequency conversion, full frequency conversion and common DC bus. It is widely applied in the stepless speed regulation of hoist, pitching, amplitude variation, bridge, trolley, slewing and grab. More