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32results about How to "Ensure system security" patented technology

Automatic binding device

PendingCN121769748AStable conveying of cable tiesThe binding operation is convenient and efficientElectrical apparatusElectric machineryStructural engineering
The invention discloses an automatic binding device which comprises a clamping main body and a binding belt bin arranged on the side wall of the clamping main body, a sliding way is arranged on the clamping main body, and the sliding way is communicated with the inner wall of the binding belt bin; the clamping main body is used for wrapping the outer wall of an object to be bound; a pushing part is arranged on the inner wall of the sliding way and can push the cable tie to move along the sliding way under the power action of a first motor, the cable tie is taken out after the cable tie moves to be larger than one circle along the sliding way, and at the moment, the cable tie is located on the outer wall of an object to be bound. By arranging the clamping body capable of being opened and closed, the technical problem that it is difficult for a single person to conveniently bind objects such as a bridge cover plate is solved, and the purpose that binding operation can be completed by the single person is achieved; the technical problems that traditional manual binding is low in efficiency, and firmness and consistency are difficult to guarantee are solved, and the technical purposes that binding belt conveying is stable, binding operation is convenient, fast and efficient, and binding quality is more uniform are achieved.
Owner:HUANENG TIANJIN COAL GASIFICATION POWER CO LTD

A method and system for AC power regulation based on zero-crossing control

PendingCN122577637AReduce jump amplitudeLow harmonic characteristics
This invention relates to the field of power regulation technology, and particularly to an AC power regulation method and system based on zero-crossing control. The method includes: calculating a target output voltage based on a set power or control target; determining a corresponding operating level from a set of preset voltage levels based on the target output voltage; ensuring the target output voltage does not exceed the voltage of the highest voltage level among the preset voltage levels; calculating the number of conduction cycles of the operating level within one power regulation cycle based on the target output voltage; and controlling the operating level to turn on or off at the voltage zero-crossing moment within one power regulation cycle based on the number of conduction cycles. This invention presets multiple voltage levels and combines them with zero-crossing conduction control to map the target voltage to a combination of level and conduction cycle number, switching levels at the zero-crossing moment, preserving low harmonic characteristics, improving power regulation resolution, reducing power jumps and thermal shocks, and achieving high-precision, low-interference AC power regulation.
Owner:SICHUAN INJET ELECTRIC CO LTD