New Low Loss Phase Control Thyristors for Medium Current UHVDC Transmission

Conference: PCIM Europe 2018 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
06/05/2018 - 06/07/2018 at Nürnberg, Deutschland

Proceedings: PCIM Europe 2018

Pages: 4Language: englishTyp: PDF

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Populoh, Sascha; Liu, Chunlei; Bellini, Marco; Tugan, Kenan; Meier, Urban; Vobecky, Jan (ABB Corporate Research Center, Switzerland)

The presented new generation of 8.5 kV class Phase Control Thyristors (PCTs) in package with 119 mm pole piece features reduced ON-state voltage VT through optimized wafer thickness, resistivity and cathode design. Additionally, dV/dt and tq ratings were improved as well in the whole range of VT/Qrr values relevant for HVDC and industrial applications. This device completes the new generation PCT platform of ABB, where PCTs with rating currents of 1.5, 3 and 6 kA give designers the necessary degrees of freedom for optimal valve design for HVDC & UHVDC transmission.