Inverter IGBT aging on-line monitoring method and system based on junction temperature normalization
A normalization and inverter technology, which is applied in the field of reliability of core components of power electronic equipment, can solve problems such as interference and junction temperature interference, and achieve the effect of improving accuracy and eliminating the influence of aging indicators
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[0041] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0042] In the examples of the present invention, "first", "second", etc. are used to distinguish different objects, rather than to describe a specific order or sequence.
[0043] A three-phase inverter circuit is taken as a specific example below, and the specific parameters are shown in Table 1. The on-line monitoring method of bonding wire aging of inverter IGBT based on junction temperature ...
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