IGCT使变流装置在功率、可靠性、开关速度、效率、成本、重量和体积等方面都取得了巨大进展，给电力电子成套装置带来了新的飞跃。IGCT是将GTO芯片与反并联二_极管和广极驱动电路集成在-起，再与其门极驱动器在外围以低电感方式连接,结合了晶体管的稳定关断能力和晶闸管低通态损耗的优点,在导通阶段发挥晶闸管的性能，关断阶段呈现晶体管的特性。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。用于电力系统电网装置(100MVA) 和的中功率业驱动装置(5MW)IGCT在中压变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-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，由独立的极供电单元GUSP为其提供能源。
5SHY5045L0020
5SHY5045L0020
IGCT has made significant progress in power, reliability, switching speed, efficiency, cost, weight, and volume of converter devices, bringing new leaps to complete power electronic devices. IGCT combines GTO chips with anti parallel two_ The transistor and wide pole drive circuit are integrated together, and then connected to the gate driver in a low inductance manner on the periphery, combining the stable turnoff ability of the transistor and the advantages of low on state loss of the thyristor. The performance of the thyristor is exerted during the conduction phase, and the characteristics of the transistor are presented during the turnoff phase. IGCT has the characteristics of high current, high blocking voltage, high switching frequency, high reliability, compact structure, low conduction loss, low manufacturing cost, high yield, and good application prospects. The medium power drive device (5MW) IGCT used for power system grid devices (100MVA) 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 required number of power components is less, and the reliability of operation is greatly improved. IGCT combines the high-speed switching characteristics of IGBT (insulated bipolar transistor) and the high blocking voltage and low conduction loss characteristics of GTO (gate turn off thyristor), and generally triggers signals to be transmitted to IGCT units through optical fibers. 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 pole power supply unit GUSP.
There are no reviews yet.