Modeling, Control, and Operation of an M-DAB DC-DC Converter for Interconnection of HVDC Grids

Modeling, Control, and Operation of an M-DAB DC-DC Converter for Interconnection of HVDC Grids

Yazdi, Seyed Saeid Heidari (Nazarbayev University)
Rouzbehi, Kumars (University of Seville)
Carrizosa, Miguel Jimenez (Universidad Politécnica de Madrid)
Heidary, Amir (TU Delft Intelligent Electrical Power Grids)
Bagheri, Mehdi (Nazarbayev University)

2023

Future high-voltage direct-current (HVDC) networks based on voltage source converters (VSCs) will have different structures (asymmetric monopolar, bipolar, or symmetric monopolar), voltage levels, control, and protection schemes. Therefore, dc-dc converters are needed to interconnect those VSC-HVDC grids and several technical issues on their control and operational systems must be adequately addressed. A dc-dc converter based on a modular-dual active bridge (M-DAB) converter is suggested to reach a desirable interconnection of the HVDC grids and regulate power flow (PF) between them. A dynamic averaged model is proposed for the M-DAB converter and its stability is analyzed using the Lyapunov function. Moreover, a new local controller based on nonlinear control theory is proposed for the M-DAB. The new M-DAB local controller is integrated with the energy management system (EMS), by updating the PF equations, to create a complete control structure. Considering the CIGRE DCS3 HVDC test system and the studied M-DAB, static, dynamic simulation, and experimental studies are conducted and the dc-dc converter and the performance of the designed controllers and the EMS are examined and validated.

Control systems
DC–DC converter
HVDC grids interconnection
HVDC transmission
modular dual active bridge (M-DAB) converter
Modulation
MT-HVDC grids
nonlinear control
Switches
Topology
Transformers
Voltage control

http://resolver.tudelft.nl/uuid:11497560-68ea-4d3b-8d30-a432c72ecd6d

https://doi.org/10.1109/JSYST.2023.3235249

2023-07-24

1932-8184

IEEE Systems Journal, 17 (2), 2652-2663

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Institutional Repository

journal article

© 2023 Seyed Saeid Heidari Yazdi, Kumars Rouzbehi, Miguel Jimenez Carrizosa, Amir Heidary, Mehdi Bagheri