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A Perturbation Observer-Based Fast Frequency Support for Low-Inertia Power Grids Through VSC-HVDC Systems

IEEE Transactions on Power Systems
Low-inertia power grids could suffer from large frequency excursions under even small power disturbances. When a voltage source converter-based high voltage direct current (VSC-HVDC) system is used to integrate a low-inertia grid into a main grid, an ...
Weiyu Wang   +6 more
semanticscholar   +1 more source

Coordinated Design of Supplementary Controllers in VSC-HVDC Multi-Terminal Systems to Damp Electromechanical Oscillations

IEEE Transactions on Power Systems, 2021
High Voltage Direct Current Transmission (HVDC) systems are called to play an important role in modern electric power systems. Among the many aspects of HVDC currently under active research, this paper presents a proposal to design supplementary ...
J. Renedo   +3 more
semanticscholar   +1 more source

Coordinated Grid-Forming Control Strategy for VSC-HVDC Integrating Offshore Wind Farms Based on Hybrid Energy

IEEE Journal of Emerging and Selected Topics in Industrial Electronics
For integrating large-scale offshore wind farm system more effectively, issues as insufficient inertia energy and dc voltage variation caused by traditional grid-forming (GFM) control in voltage source converter based HVDC (VSC-HVDC) have to be settled ...
Ying Zhu, Zhili Wang, Bin Li
semanticscholar   +1 more source

An equivalent model for sub-synchronous oscillation analysis in direct-drive wind farms with VSC-HVDC systems

, 2021
Field experiences have shown that sub-synchronous oscillation (SSO) can occur in direct-drive wind farms with VSC-HVDC systems. Due to the complexity of the detailed wind farm model, a dynamic equivalent model, with a reasonable order reduction of the ...
Bingbing Shao   +4 more
semanticscholar   +1 more source

Damping Low-Frequency Oscillations Through VSC-HVdc Stations Operated as Virtual Synchronous Machines

IEEE transactions on power electronics, 2019
With proper control methods, grid-connected power converters can mimic the dynamics of conventional synchronous generators (SGs), i.e., acting as virtual synchronous machines (VSMs), for improving the grid frequency stability and ensuring a smooth ...
Linbin Huang, H. Xin, Zhen Wang
semanticscholar   +1 more source

Stability analysis and stabilization control of a grid-forming VSC-HVDC system

Frontiers in Energy Research
As the penetration of the integrated intermittent and fluctuating new energy (e.g., wind and photovoltaic power) increases, the conventional grid-following voltage source converter (VSC)-based high voltage direct current (HVDC) transmission system faces ...
Yi Lu   +6 more
semanticscholar   +1 more source

Serious fault identification for VSC-HVDC converters

2020 4th International Conference on HVDC (HVDC), 2020
Voltage Source Converter-based High Voltage Direct Current systems are particularly prone to have IGBT valve short-circuit, AC single phase grounding fault and other types of serious fault. In this paper, for the five most common serious VSC faults of VSC-HVDC, a method to both protect against and identify these kinds of faults that can block a faulty ...
Xiaoyun Sun, Xin Gao, Shengchang Ji
openaire   +1 more source

Novel travelling wave fault location principle for VSC-HVDC transmission line

Electric power systems research, 2021
Currently, voltage source converter (VSC) based high voltage direct current (HVDC) technology is widely utilized in power transmission system. It has high transmission efficiency, no commutation failure issue and ability to supply power to passive system.
Dong Wang   +4 more
semanticscholar   +1 more source

Potential interactions between VSC HVDC and STATCOM

2014 Power Systems Computation Conference, 2014
This paper analyses the dynamic behaviour of a power system with both FACTS and VSC HVDC, in particular, possible potential interactions between a STATCOM and a VSC in a point-to-point HVDC link. The investigation considers different STATCOM locations and VSC control strategies.
Shen, L.   +4 more
openaire   +1 more source

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