Electromagnetic interference source of Hall sensor of excitation system and determination method of mounting surface thereof

Abstract

The invention discloses an electromagnetic interference source of a Hall sensor of an excitation system and a determination method of a mounting surface thereof. The determination method comprises the following steps: under the condition that the excitation system works normally, namely an interference source exists, a signal wire of the Hall sensor is connected but not fixed to a mounting location, the Hall sensor is close to an interference bus row through multiple placement locations, experimental tests are respectively carried out on different placement locations, and the interference current values detected by the Hall sensor are recorded; the interference current values at above placement locations are compared to find out the maximal interference current value, i.e. the Hall sensoris arranged at the location corresponding to the maximal interference current value, the side close to the inference bus row is the sensitive interfered part of the Hall sensor, and the sensitive interfered part can be arranged far away from an interference source; and the Hall sensor is remounted to a reasonable mounting location by regulating a circuit to ensure the sensitive interfered part ofthe Hall sensor to be far away from the interference source. The method can rapidly and effectively search the interference source, thus improving shielding design efficiency.

Description

technical field [0001] The invention relates to the field of excitation system sensor shielding design technology and finite element simulation technology, in particular to an electromagnetic interference source of an excitation system Hall sensor and a method for determining the mounting surface thereof. Background technique [0002] At present, the anti-jamming design of the excitation system sensor mainly depends on the experience of the designer and the method of trial and error. [0003] In the existing design process, there is no effective method to conduct sufficient theoretical demonstrations, especially in the search of interference sources, which cannot be quickly and effectively searched. Designers usually use all-round anti-interference design, resulting in low shielding efficiency , serious material waste, difficult installation and other issues. [0004] The Hall sensor itself is composed of sensitive parts, which have a strong response to electromagnetic inte...

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a method for determining the electromagnetic interference source of the Hall sensor in the excitation system and its installation surface, so as to solve the problems of insufficient theoretical support and low design efficiency in the shielding design of the excitation system sensor

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