Bidirectional Power Flow Analysis of Bipolar HVDC system

The success of HVDC technology applied to the interconnection of ac systems has been confined by the rapid growth in its utilisation. There are many dc links around the world, with a transmission capacity of about 36000 MW. Although most of these involve transmission by overhead line and underground cable, a significant number are bipolar HVDC links. A high level of reliability, coupled with the advantages of very fast controllability, low transmission losses, suitability for cable transmission, and asynchronous connection, all combine to ensure the future of HVDC in modem power systems. The main objective is to determine bidirectional power flow analysis. Also determine the automatic control of rectifier gate signal and automatic control of inverter gate signal. Simulation has been carried out by MATLAB software. In this paper at both the end we can connect the load as a motor and thereafter we can determine the bidirectional power flow analysis. The gate pulse is applied manually. Then after we can check the result of the system.