This paper describes the updated form of HVDC known as HVDC Light.
The HVDC Light technology, is well suited to meet the new markets and its demands and the reasons for this are explained. HVDC Light is the most interesting power transmission system using high voltage direct current. These may be installed in existing AC grids for their role in stabilizing power flow without the additional short-circuit current . This concept is called "HVDC Light" which uses pulse width modulation. It extends the economical power range of HVDC transmission down to just a few tens of megawatts (MW).
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