A Novel AC/DC Power Flow: HVDC-LCC/VSC Inclusion Into the PFPD Bus Admittance Matrix

In this paper, the matrix algorithm PFPD is generalized in order to compute the power flow solution of real and large AC/DC transmission networks. In particular, it is demonstrated that the HVDC-VSC/LCC links can be seen from the AC power systems as PV/PQ constraints, which englobe both the AC and D...

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Bibliographic Details
Published in:IEEE access 2022, Vol.10, p.38123-38136
Main Authors: Benato, Roberto, Gardan, Giovanni
Format: Article
Language:English
Subjects:
AC/DC Italian transmission network
AC/DC power flow
admittance matrix power flow
Algorithms
Electric power systems
Electric power transmission
Electrical impedance
HVDC transmission
HVDC-LCC
HVDC-VSC
Iterative methods
Links
Load flow
Numerical methods
Power flow
Power systems
Propagation losses
Reactive power
Receivers
Transmitters
Voltage control
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Summary:In this paper, the matrix algorithm PFPD is generalized in order to compute the power flow solution of real and large AC/DC transmission networks. In particular, it is demonstrated that the HVDC-VSC/LCC links can be seen from the AC power systems as PV/PQ constraints, which englobe both the AC and DC characteristics of the HVDC links. The proposed analytical formulation to assess the PV/PQ constraints is valid for any other numerical methods ( e.g., Newton-Raphson and derived, Gauss-Seidel, etc. ). Furthermore, an iterative procedure for estimating the reactive power absorption of HVDC-LCC links from the power system is proposed. In order to validate the algorithm, solution comparisons with the commercial software DIgSILENT PowerFactoy are presented. This validation procedure shows that the algorithm can analyse large and real HVAC/HVDC networks ( e.g. , the Italian transmission one with its five HVDC links). Therefore, the conciseness, accuracy and performances of PFPD for studying real and large AC/DC power systems is confirmed.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2022.3165183