VSC-HVDC Frequency Synchronization Control and Hydropower Regulation Patent

ChangeBridge: Patent Apps - Power Supply (H02J)

Published March 26th, 2026

Detected March 26th, 2026

Summary

The USPTO has published a patent application (US20260088624A1) for a coordinated optimization method for VSC-HVDC frequency synchronization control and hydropower primary frequency regulation. The application, filed by Kunming University of Science and Technology, details a dual-layer optimization model to balance frequency response speeds between these systems.

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What changed

This document is a patent application published by the USPTO, detailing a novel method for optimizing the coordination between VSC-HVDC frequency synchronization control and hydropower primary frequency regulation. The core innovation lies in a dual-layer optimization model designed to derive optimal PI parameters for the VSC-HVDC synchronization controller and target PID control parameters for the hydropower regulation system. The application specifically addresses the challenge of harmonizing the frequency response speeds of these two distinct systems.

As this is a patent application, it does not impose direct compliance obligations or deadlines on regulated entities. However, it represents a technological advancement in grid stability and energy management. Companies involved in power grid infrastructure, renewable energy integration (specifically hydropower), and high-voltage direct current (HVDC) transmission may find this technology relevant for future development or licensing. Compliance officers should note this as a technological development rather than a regulatory mandate.

Source document (simplified)

← USPTO Patent Applications

COORDINATED OPTIMIZATION METHOD FOR VSC-HVDC FREQUENCY SYNCHRONIZATION CONTROL AND HYDRO POWER PRIMARY FREQUENCY REGULATION

Application US20260088624A1 Kind: A1 Mar 26, 2026

Assignee

Kunming University of Science and Technology

Inventors

Hongchun SHU, Zongxue SHAO, Guangxue WANG, Tingyi HE, Yutao TANG, Runzhi MU

Abstract

A coordinated optimization method for VSC-HVDC Frequency Synchronization Control and primary frequency regulation of hydropower includes: obtaining optimal PI parameters of the VSC-HVDC Frequency Synchronization controller from a first layer output of a dual-layer optimization model for coordinated parameters of VSC-HVDC Frequency Synchronization and primary frequency regulation; and obtaining a target PID control parameters from a second layer output of the dual-layer optimization model. The coordinated optimization method further includes adjusting the optimal PI parameters of the synchronization controller based on the target selection range and updating the PID control parameters of the primary frequency regulation system of hydropower based on the target PID control parameters. This approach aims to address the challenge of balancing the frequency response speed between the VSC-HVDC synchronization system and the primary frequency regulation system of hydropower.