Enhancements in Dielectric Response Characterization of Insulation Materials

TL;DRAbstract

The increasing demand of integrating various renewable energy recourses in power system requires extensive use of power electronic solutions, such as HVDC and FACTS, as these techniques allow energy conversion between different frequencies and serves to stabilize the network. Consequently, electric stresses other than traditional 50/60 Hz sinusoidal voltage stress are acting on high voltage insulation materials. Therefore, a need for fast and accurate characterization methods, which can be used to study the influence on insulation materials of different types of voltage waveforms, has arisen. Dielectric response measurement is one commonly used non-destructive insulation test technique and has more than 100 years of history. Limitations like precision of the testing voltage waveform, high demand on a stable testing environmental condition, intricate specimen-electrode preparation, severe electrode geometric influences, etc., are however restraining the use of such measurements. In this

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