Mathematical Model For Assessment Of Voltage Disturbing Sources In Networks With Distributed Power Generation

The assessment of voltage disturbing emission sources still lacks adequate models for customer side incorporating mixed loads and distributed power generation. The paper proposes a solution for this challenging task. It includes the determination of topology and parameters of equivalent circuits representing customers' installations with local power sources in three- and four-wire networks. The equivalent circuits are developed on the basis of two-staged transformation, meet requirements of IEC 61000-4-30 and can be used for the on-line assessment of the emission sources of linear voltage disturbances.