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Sequential AC-DC load flow method for two-terminal HVDC networks



A HVDC load flow algorithm in Simulink treated separately from an AC load flow in SimPowerSystems.

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This demo illustrates a sequential AC-DC load flow method in SimPowerSystems that involves iterations between DC and AC solutions.

The AC load flow is performed by the load flow tool of the Powergui. The DC load flow accommodates a two-terminal HVDC link taking into account tap changers of converter transformers. It is performed by a Simulink model containing the DC power flow algorithm. HVDC link and converter controls parameters are specified in an initialization file.

A script controls the whole process and iterates until the convergence criteria have been reached. This solution technique can be extended to any number of HVDC links connected inside the same AC system or between isolated AC systems.

Required Products SimPowerSystems
MATLAB release MATLAB 7.14 (R2012a)
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Comments and Ratings (2)
02 Dec 2012 Sameetr  
26 Oct 2012 yq meng


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