ABB 3HAC026271-001 IGCT converter device

ABB 3HAC026271-001 IGCT converter device

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3HAC026271-001 IGCT has made great progress in terms of power, reliability, switching speed, efficiency, cost, weight and volume, and has brought a new leap to power electronic complete sets of devices.

IGCT integrates the GTO chip with the anti-parallel diode and the gate driver circuit, and then connects it with the gate driver in a low inductance mode at the periphery, combining the stable turn-off ability of the transistor and the advantages of the low on-state loss of the thyristor, giving play to the performance of the thyristor in the on-stage, and presenting the characteristics of the transistor in the off stage. IGCT has the characteristics of high current, high voltage, high switching frequency, high reliability, compact structure, low loss, low cost, high yield, and has a good application prospect.

3HAC026271-001 GTO using thyristor technology is a commonly used high-power switching device, which has higher performance in cut-off voltage than IGBT using transistor technology, but the widely used standard GTO drive technology causes uneven opening and closing process. The need for high cost dv/dt and di/dt absorption circuits and higher power grid drive units, resulting in reduced reliability, higher prices, and is not conducive to series. However, before the high-power MCT technology is not mature, IGCT has become the preferred solution for high-voltage high-power low-frequency communicators.

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