Due to the advantages of VSC technology and pulse width modulation (PWM), the VSC-HVDC has a number of potential advantages as compared with CSC-HVDC, such as being easy to realize multi-terminal HVDC transmission system, rapid and independent control of active and reactive power, etc. On July of 2014, the world first 5-terminal VSC-HVDC project located in Zhoushan islands was put into commercial operation in China. For convenient reference for the other engineers or researchers, the system design and engineering application, such as control & protection technology and system analysis, have been introduced in the paper. Finally, the system field on-site tests and some test cases are introduced for better understanding.
VSC-HVDC, Multi-terminal, coordinated control, five-terminal DC system, Current Source Converter
