Isolation switch position monitoring system and method based on attitude sensor

Abstract

The invention provides an isolation switch position monitoring system and an isolation switch position monitoring method based on an attitude sensor, which are used for researching an opening and closing position judgment function based on three-dimensional space position change by utilizing an attitude sensing technology. When high-voltage switch equipment is switched on and off, the attitude sensor which is integrally designed with primary equipment is used for sensing the switching-on and switching-off operation track on line, and the current position state of a knife switch is automatically judged by utilizing a judgment algorithm and can be used as a second position criterion of the switch equipment, so that the switching-on and switching-off state of the primary equipment is accurately identified, and sequence control and remote control operation objects and task types are expanded; defects of parts such as a transmission mechanism are found in advance, the operation reliability is improved, and the switching operation automation and intelligence level is improved. And meanwhile, the problems that in the prior art, the weather resistance of the outdoor full life cycle and the accuracy of distinguishing the opening and closing positions of the knife switch cannot reach 100%, and particularly, the accuracy tends to decrease along with time change are effectively solved.

Description

technical field [0001] The invention relates to the technical field of intelligent power grids, in particular to a position monitoring system and method for an isolating switch based on an attitude sensor. Background technique [0002] With the rapid development of smart grids, the original method of using remote signaling signals and on-site manual observation to judge whether the isolation switch is in place is no longer applicable, and the work efficiency is low. Moreover, the isolating switch is installed outdoors, the operating conditions are harsh, and most of the components are exposed. The health status of the operating mechanism and its transmission parts cannot be predicted in advance. There may be corrosion of metal parts, which may cause the operating mechanism to jam or refuse to move, and mechanical or electrical problems may occur. It is difficult to accurately reflect the opening and closing state of the knife switch only by the auxiliary contact of the openi...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of smart grids, the original method of using remote signaling signals and on-site manual observation to judge whether the isolation switch is in place is no longer applicable, and the work efficiency is low.

Moreover, the isolating switch is installed outdoors, the operating conditions are harsh, and most of the components are exposed. The health status of the operating mechanism and its transmission parts cannot be predicted in advance. There may be corrosion of metal parts, which may cause the operating mechanism to jam or refuse to move, and mechanical or electrical problems may occur. It is difficult to accurately reflect the opening and closing status of the knife switch only by the auxiliary contacts of the opening and closing positions, which does not meet the requirements of the "two-position" criterion in the safety regulations of the power grid

The opening and closing position of the isolating switch used in GIS is mainly judged by the auxiliary contact, and the way of distinguishing the opening and closing state is single. Therefore, a new technical means is urgently needed to improve the "two-position" technical criterion and improve the sequence control and remote control operation position. Reliability of discrimination, predicting the operating status of the operating mechanism and transmission components in advance, reducing operating risks

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