IGCT 具有电流大、阻断电压高、开关频率高、可靠性高、结构紧凑、低导通损耗等特点,而且造成本低,成品率高,有很好的应用前景。
己用于电力系统电网装置(100MVA) 和的中功率I业驱动装置(5MW)IGCT在中压度频器领域内成功的应用了11年的时间(到09年为止), 由于IGCT的高速开关能力无需缓冲电路,因而所需的功率元件数目更少,运行的可靠性大大增高。IGCT集 IGBT (绝缘门极双极性晶体管)的高速开关特性和GTO (门极关断品闸管)的高阻断电压和低导通损耗特性于一体,一 般触发信 号通过光纤传输到IGCT单元。在ACS6000的有缘整流单元的相模块里,每相模块由IGCT和二极管、钳位电容组成,由独立的门极供电单元GUSP为其提供能源。
IGCT has the characteristics of high current, high blocking voltage, high switching frequency, high reliability, compact structure, low conduction loss, and low manufacturing cost, high yield, and has good application prospects.
The medium power I industry drive device (5MW) IGCT, which has been used in power system grid devices (100MVA) and medium power I industry, has been successfully applied in the field of medium voltage frequency converters for 11 years (until 2009). Due to the high-speed switching ability of IGCT without the need for buffer circuits, the number of power components required is fewer, and the reliability of operation is greatly improved. IGCT integrates the high-speed switching characteristics of IGBT (insulated gate bipolar transistor) and the high blocking voltage and low conduction loss characteristics of GTO (gate turn off thyristor). Generally, the trigger signal is transmitted to the IGCT unit through optical fiber. In the phase module of the edge rectifier unit of ACS6000, each phase module is composed of IGCT, diode, and clamp capacitor, and is powered by an independent gate power supply unit GUSP.
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