Integrated slide wire alternating current ice melting controller

Abstract

The invention discloses an integrated sliding contact line alternating current ice melting controller, and the controller comprises a controller main circuit; the controller main circuit is composed of a controller module, the controller module comprises a module main circuit, and the module main circuit comprises a rectifying circuit, an intermediate direct current link circuit, an improved phase-shifting soft switching inverter circuit and a high-frequency transformer; the intermediate direct-current link circuit is composed of a capacitor and a resistor, the inverter circuit is composed of a one-way high-frequency inverter, the one-way high-frequency inverter is composed of a power transistor, and a high-frequency transformer is of a multi-secondary-side structure. The controller module adopts a structure that an alternating current is converted into a direct current and then converted into an alternating current; compared with a traditional direct-current ice melting controller, the controller reduces rectification and filter circuits at the rear stage of the transformer, reduces the hardware complexity greatly, and also greatly reduces the cost; the primary side of the high-frequency transformer adopts single-winding input, and the secondary side adopts multi-winding output; multi-module parallel connection is not needed, and the number of power devices on the input side of the high-frequency transformer is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of crane matching electrical equipment, in particular to an integrated AC ice-melting controller for trolley lines. Background technique [0002] A crane refers to a multi-action hoisting machine that vertically lifts and horizontally transports heavy objects within a certain range, also known as a crane, aerial crane or crane. The corresponding mechanisms for actions such as moving, unloading, etc. work alternately, and the development and use of cranes in the market are becoming more and more extensive; [0003] The trolley line is an important part of the power supply side of the crane. In winter, as the ambient temperature drops below 0°C, the trolley line often freezes, which affects the normal use of the crane. However, in low-voltage applications represented by cranes, the trolley line The line ice melting technology is still blank at present, therefore, the present invention proposes an integrated s...

AI Technical Summary

Problems solved by technology

[0003] The trolley line is an important part of the power supply side of the crane. In winter, as the ambient temperature drops below 0°C, the trolley line often freezes, which affects the normal use of the crane. However, in low-voltage applications represented by cranes, the trolley line Wire-line melting ice technology is still blank at present, therefore, the present invention proposes an integrated sliding contact line AC ice-melting controller to solve the problems existing in the prior art

Images