Abstract: In order to improve the evaluation accuracy of the SiC de-excitation resistance energy capacity, the testing data of macro-energy injection, infrared imaging and average energy of multiple components are analyzed based on a novel off-line testing system of SiC de-excitation resistance and its relevant testing items. A new parameter“heat dissipation reciprocal coefficient” is defined to revise the impacts of unpredictable physical processes such as heat dissipation and equalization on the calculating results. A set of methods are proposed for comprehensive evaluation of the SiC de-excitation resistance energy capacity based on the off-line testing data and with a reference to the manufacturer’s design parameters. Finally, the influencing factors of the proposed evaluation method are analyzed and corresponding measures are proposed.

Key words: de-excitation, SiC resistance, energy capacity, heat dissipation reciprocal coefficient, evaluation