IGCT集成门极换流晶闸管(Intergrated Gate Commutated Thyristors)是一种中压变频器开发的用于巨型电力电子成套装置中的新型电力半导体开关器件(集成门极换流晶闸管=门极换流晶闸管+门极单元)。1997年由ABB公司提出。ABB 5SHY3545L0020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门极驱动电路集成在一起，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。
5SHY3545L0020
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）和的中功率工业驱动装置（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。ABB宣布扩大无线通信网络产品组合，满足石油和天然气公司的需求，这些公司需要高可靠性、安全性和带宽，以满足当今物联网、服务和人联网(IoTSP)时代现代数字油气田快速发展的数据需求 。
5SHY3545L0020
IGCT Integrated Gate Commutated Thyristors are a new type of power semiconductor switching device developed for medium voltage inverters and used in giant power electronic complete sets (integrated gate commutated thyristors=gate commutated thyristors+gate units). Proposed by ABB in 1997. ABB 5SHY3545L0020 has made significant progress in power, reliability, switching speed, efficiency, cost, weight, and volume of converter devices, bringing a new leap to power electronic complete sets. IGCT integrates GTO chips with anti parallel diodes and gate drive circuits, and then connects them with gate drivers in a low inductance manner on the periphery. It combines the stable turn-off ability of transistors and the advantages of low on state losses of thyristors, and utilizes the performance of thyristors during the conduction phase. The turn-off phase exhibits the characteristics of transistors.
5SHY3545L0020
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 industrial drive device (5MW) IGCT, which has been used in power system grid devices (100MVA) and medium power industrial drive devices, 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. ABB has announced the expansion of its wireless communication network product portfolio to meet the needs of oil and gas companies that require high reliability, security, and bandwidth to meet the data needs of modern digital oil and gas fields in the era of the Internet of Things, Services, and People (IoTSP).
5SHY3545L0020
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