Renxin Yang
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View article: Stability analysis and stabilization control of a grid-forming VSC-HVDC system
Stability analysis and stabilization control of a grid-forming VSC-HVDC system Open
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) transmissio…
View article: Droop control-based fast frequency support of wind power generation integrated grid-forming VSC-HVDC system
Droop control-based fast frequency support of wind power generation integrated grid-forming VSC-HVDC system Open
Current researches mainly focus on the participation of wind farms in primary frequency regulation, including overspeed load shedding control, propeller control and their coordinated control, etc. The frequency support is realized by reser…
View article: Frequency-Reactive Power Optimization Strategy of Grid-forming Offshore Wind Farm Using DRU-HVDC Transmission
Frequency-Reactive Power Optimization Strategy of Grid-forming Offshore Wind Farm Using DRU-HVDC Transmission Open
The diode rectifier unit-based high voltage direct current (DRU-HVDC) transmission with grid-forming (GFM) wind turbine is becoming a promising scheme for offshore wind farm(OWF) integration due to its high reliability and low cost. In thi…
View article: Harmonic suppression and fault ride‐through method of diode‐rectifier‐based hybrid high‐voltage direct current system for offshore wind farms integration
Harmonic suppression and fault ride‐through method of diode‐rectifier‐based hybrid high‐voltage direct current system for offshore wind farms integration Open
The diode‐rectifier (DR)‐based high‐voltage direct current (HVDC) transmission is regarded as a low‐cost alternative to the HVDC transmission for offshore wind farms (OWFs) integration. However, the DR would generate harmonic voltages in t…
View article: Start-up and shut-down strategies of DR-based hybrid DC converter for offshore wind power transmission system
Start-up and shut-down strategies of DR-based hybrid DC converter for offshore wind power transmission system Open
The diode rectifier (DR) based hybrid dc converter can significantly increase the economy of the offshore wind power transmission system comparing with the traditional modular multilevel converter (MMC). However, the start-up and shut-down…
View article: Diode rectifier‐based hybrid high‐voltage direct current converter for offshore wind farms
Diode rectifier‐based hybrid high‐voltage direct current converter for offshore wind farms Open
This paper presents a diode rectifier (DR)‐based hybrid converter topology for high‐voltage direct current (HVDC) transmission system with offshore wind farms (OWFs). The hybrid converter consists of a DR and an auxiliary converter. A high…
View article: Coordinated Low Voltage Ride-Through of MMC-HVDC Transmission System and Wind Farm With Distributed Braking Resistors
Coordinated Low Voltage Ride-Through of MMC-HVDC Transmission System and Wind Farm With Distributed Braking Resistors Open
Modular multilevel converter-based high-voltage direct current (MMC-HVDC) transmission is becoming a trend in offshore wind-farm integration. However, the large DC-side energy dissipation equipment, which is utilized to dissipate surplus w…
View article: Transient Synchronization Stability Analysis of Wind Farms with MMC-HVDC Integration Under Offshore AC Grid Fault
Transient Synchronization Stability Analysis of Wind Farms with MMC-HVDC Integration Under Offshore AC Grid Fault Open
The MMC-HVDC connected offshore wind farms (OWFs) could suffer short circuit fault (SCF), whereas their transient stability is not well analysed. In this paper, the mechanism of the loss of synchronization (LOS) of this system is analysed …
View article: Optimal short‐circuit current control of the grid‐forming converter during grid fault condition
Optimal short‐circuit current control of the grid‐forming converter during grid fault condition Open
A considerable amount of rotating synchronous machines are being replaced by the increasing capacity of converter‐based resources, which has stimulated a demand for grid‐forming converters (GFCs) for grid supporting. The inertia and freque…
View article: Voltage source control of offshore all‐DC wind farm
Voltage source control of offshore all‐DC wind farm Open
The offshore all‐DC wind farm with increasing capacity will bring problems such as the weakening of grid frequency stability and the increase of equivalent grid impedance. To overcome this, a coordinated control strategy for the offshore a…
View article: Voltage source control of offshore all‐DC wind farm
Voltage source control of offshore all‐DC wind farm Open
The fast growth of offshore all‐DC wind farm will bring problems such as the weakening of grid frequency stability and the increase of equivalent grid impedance. To overcome this, a coordination control strategy for offshore all‐DC wind fa…