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Modular multilevel converter (MMC) is a recently emerged multilevel topology for high-voltage high-power applications. However, in wind power application the performance of the MMC has not been deeply investigated. In this paper the application of MMC in wind energy systems is studied. The converters used to connect the wind turbine to the grid having the rated active powers of 2MW and 10MW are designed...
Design of low inductive busbars for medium voltage Neutral Point Clamped (NPC) inverter is studied. In a hard-switched inverter the stray inductance causes various problems, such as over voltages, current unbalance, and possible resonance with DC-link capacitors. These problems lead to improper operation of the inverter and an increased level of electromagnetic interference (EMI). The laminated busbars...
Common mode (CM) electromagnetic interference in power lines are typically reduced with a CM filter, which consists of discrete capacitors and inductors. An air-cored EMI filter with CM choke and integrated X and Y capacitors utilizing the parasitic capacitance of the windings is proposed. Its benefits include better high frequency performance, reduced component count, and improved manufacturability...
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