ABB 5SHY3545L0020 IGCT board

ABB 5SHY3545L0020 IGCT board

IGCT Integrated Gate Commutated Thyristors (IGCT) is a new type of power semiconductor switching device developed by medium-voltage inverter and used in giant power electronic complete sets (integrated gate commutation thyristor=gate commutation thyristor+gate unit). It was proposed by ABB in 1997. IGCT enables the converter to
Great progress has been made in power, reliability, switching speed, efficiency, cost, weight and volume, which has brought a new leap to the complete set of power electronic devices. IGCT integrates GTO chip with antiparallel diode and gate drive circuit, and then connects with its gate driver in a low inductance way at the periphery. It combines the advantages of transistor’s stable turn-off capability and thyristor’s low on-state loss, and gives play to the performance of thyristor in the turn-on phase, and presents the characteristics of transistor in the turn-off phase. IGCT is characterized by high current, high blocking voltage, high switching frequency, high reliability, compact structure, low conduction loss, low manufacturing cost, high yield, and good application. IGCT has been used in power system power grid devices (100MVA) and medium-power industrial drive devices (5MW). IGCT has been successfully applied in the field of medium-voltage frequency converters for 11 years (until 2009). Because of its high-speed switching capability, no buffer circuit is required, Therefore, the number of power elements required is less, 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 IGCT unit through optical fiber. In the phase module of the rimmed rectifier unit of ACS6000, each phase module is composed of IGCT, diode and clamping capacitor, and the independent gate power supply unit GUSP provides energy for it.
5SHY3545L0020

The basic principle for the selection of 5SHY3545L0020 model is to select a model that is reliable, easy to maintain and use, and excellent in performance on the premise that its functions meet the requirements. In general, 5SHY3545L0020 recommends the use of PLC with integral structure when the process is relatively fixed and the environmental conditions are good; In other cases, PLC with modular structure is selected; For the switching value control and the engineering projects with switching value control as the main control and 5SHY3545L0020 with a small amount of analog quantity control, the control speed of 5SHY3545L0020 is generally not considered. Therefore, the low-grade computer with A/D conversion, D/A conversion, addition and subtraction operation and data transmission functions can meet the requirements; 5SHY3545L0020 In engineering projects with complex control and high requirements for control functions (such as PID calculation, closed-loop control, communication networking, etc.), the medium or machine can be selected according to the control scale and complexity (the machine is mainly used for large-scale process control, distributed control system with full PLC and automation of the whole plant, etc.).

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