A method for arranging sensors for valve hall monitoring of a converter valve

Abstract

The invention discloses a converter valve hall monitoring sensor arrangement method, which relates to the technical field of direct current power transmission. The converter valve hall monitoring sensor arrangement method comprises the following steps: constructing a valve hall model according to the layout of equipment in the valve hall; determining affecting equipment affecting the environment in the valve hall and parameters thereof, and performing configuration of different combination forms on the affecting equipment; preliminarily selecting arrangement points of fixed monitoring sensorsbased on the valve hall model and detecting the environmental parameters of the environment in the valve hall under different combination forms; using a mobile monitoring sensor to determine the maximum measurement ranges of the fixed monitoring sensors, and drawing a map of the maximum measurement ranges of the sensors at the arrangement points in different combination forms; and drawing a minimum cross map at the arrangement points according to the map of the maximum measurement ranges of the sensors, and adjusting and finally determining the arrangement points of the monitoring sensors andthe spacing distance.

Description

technical field [0001] The invention relates to the technical field of direct current transmission, in particular to a method for arranging sensors for valve hall monitoring of a converter valve. Background technique [0002] DC transmission technology has developed rapidly in my country in recent years, and its advantages in long-distance power transmission, cross-regional networking, and flexible dispatching are becoming increasingly apparent. The converter valve is an important core electrical equipment in the converter station. Its function is to realize rectification and inversion. Strictly speaking, from the perspective of operating experience, the cleanliness of the entire valve hall has a huge impact on the converter valve and its auxiliary control units. [0003] In the prior art, the thyristor electronic circuit (TE board) and the thyristor voltage detection board (TVM board) boards are directly exposed to the environment of the valve hall, without shell protectio...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the thyristor electronic circuit (TE board) and the thyristor voltage detection board (TVM board) boards are directly exposed to the environment of the valve hall, without shell protection, easy to accumulate dirt, leading to misconduction of the boards and causing accidents. For example, in the process of switching from the standby state to the blocking state of the DC transmission system, there will be many abnormal conduction events of the converter valve. Under operating conditions, the threshold value of its backup trigger function is greatly reduced, resulting in abnormal conduction of the converter valve during the normal charging process of the converter.

At present, there is a lack of a set of solutions for comprehensive monitoring of the valve hall of the converter valve in practical applications

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