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46 PRODUCT CATALOG POWER SEMICONDUCTORS
IGCTs
Integrated gate-commutated thyristors
Within 20 years of its introduction, the IGCT has established itself as the semiconductor of choice for high-power frequency converters by meeting the requirements of today’s demanding applications.
Hitachi ABB Power Grids’ IGCTs are used in a multitude of applications due to their versatility, efficiency and cost-effectiveness. With their low on-state voltage, they achieve the lowest running costs by reaching inverter efficiencies of 99.6 percent and more.
Single inverters of over 15 MVA can be realized without series or parallel connection, thus achieving the highest inverter power densities in the industry.
The number of applications featuring IGCTs is manifold: medium-voltage drives (MVDs), marine drives, co-generation, wind power converters and STATCOMs, to name just a few.
The latest record performance using IGCTs was achieved with the world’s most powerful frequency converter (100 MVA) for variable speed pumped hydropower application installed in the Grimsel 2 power plant in the Swiss Alps.
