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A series-connected grid-following and grid-forming (GFL/GFM) hybrid control strategy for VSC-HVDC converters significantly mitigates transient low-voltage and overvoltage issues in receiving-end power grids compared to existing hybrid synchronization controls. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

September 8, 2026EnergiesOpen Access

Series-Connected Grid-Following and Grid-Forming Hybrid Control Strategy for VSC-HVDC Converters to Enhance Transient Voltage Stability in Receiving-End Power Grids

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Authors

BBBo BaoChina Southern Power Grid (China)ZGZhen GongBeijing University of Technology CFCong FuChina Southern Power Grid (China)

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Implication

Simulation study reveals improved transient voltage stability in receiving-end grids using series-connected hybrid control, highlighting effective mitigation of voltage dips and overvoltages.

Key Points

To develop and quantitatively analyze a series-connected grid-following and grid-forming hybrid control strategy to improve transient voltage stability in receiving-end grids.
Formulated a series-connected grid-following/grid-forming (GFL–GFM) hybrid control strategy for VSC-HVDC converter stations.
Constructed a closed-loop transfer function model to quantitatively analyze dynamic power characteristics, steady-state performance, and transient reactive-power response.
Performed electromagnetic transient (EMT) simulations to evaluate dynamic performance against conventional hybrid synchronization-type controls under grid fault conditions.
Enhanced the minimum transient voltage dip from 0.3 p.u. to 0.8 p.u. during grid disturbances relative to existing hybrid synchronization schemes.
Reduced the maximum transient overvoltage following fault clearance from 1.38 p.u. down to 1.0 p.u.

Cite This Study

Bao et al. (2026) studied this question.

synapsesocial.com/papers/6a9fd79b58e84d0ff5b46641 https://doi.org/10.3390/en19174219

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Implication

Simulation study reveals improved transient voltage stability in receiving-end grids using series-connected hybrid control, highlighting effective mitigation of voltage dips and overvoltages.