SLOA289B May 2020 – September 2021 66AK2H06 , 66AK2H12 , 66AK2H14 , ADS8588H , AMC3301 , ISO224 , ISO7740 , ISO7741 , ISO7742 , LMZ30604 , SN65LVDS047 , SN65LVDS048A , UCC12040 , UCC12050
Converter is the heart of the HVDC system and performs AC/DC and DC/AC conversion. Each HVDC system has two converters one at each end. The converter at transmitting end act as a rectifier and the converter at the receiving end act as an inverter. Based on the HVDC technology the converter can be based on IGBT or Thyristor switching elements.
The converters typically constitute of one or more IGBT/thyristor bridges where each bridge consists of six IGBT/thyristor valve arms, which is based on the system’s voltage and power rating contain numerous individual IGBT/thyristors. For achieving higher voltages and currents, switching devices (IGBT or thyristors) are connected in parallel and series. For higher voltages, switching devices are connected in Series and for higher currents switching devices are connected in Parallel. Commonly used HVDC configurations include monopolar and bipolar links and the number of converters in a HVDC station depends on the configuration.