<P>This book deals exclusively with the power-flow modelling of HVDC transmission systems. Different types of HVDC transmission systems, their configurations/connections and control techniques are covered in detail. Power-Flow modelling of both LCC- and VSC-based HVDC systems is covered in this book. Both the unified and the sequential power-flow methods are addressed. DC grid power-flow controllers and renewable energy resources like offshore wind farms (OWFs) are also incorporated into the power-flow models of VSC-HVDC systems. The effects of the different power-flow methods and HVDC control strategies on the power-flow convergence are detailed along with their implementation.</P><P><STRONG>Features:</STRONG></P><UL><P><LI>Introduces the power-flow concept and develops the power-flow models of integrated AC/DC systems.</LI><P><LI>Different types of converter control are modelled into the integrated AC/DC power-flow models developed.</LI><P></P></UL><P></P><UL><P><LI>Both unified and