Results 81 to 90 of about 5,304 (193)

Control of wind energy conversion systems based on the Modular Multilevel Matrix converter [PDF]

, 2017
The nominal power of single Wind Energy Conversion Systems (WECS) has been steadily growing, reaching power ratings close to 10MW. In the power conversion stage, medium-voltage power converters are replacing the conventional low-voltage back-to-back ...
Cardenas, Roberto, Clare, Jon C., Diaz, Matias, Espinoza, Mauricio, Mora, Andreas, Rojas, Felix, Wheeler, Patrick   +6 more
core   +2 more sources

Optimized design of power loops for virtual synchronous generator to enhance transient stability

IET Renewable Power Generation, Volume 19, Issue 1, January/December 2025.
Abstract Virtual synchronous generator (VSG) control is an attractive method to solve the stability issues of future renewables (e.g. photovoltaic [PV])‐dominated power system. Unfortunately, a VSG is prone to transient instability under grid faults, and the existing work ignores the instability issues caused by current limitation and reactive power ...
Xudong Zou, Xuejiao Zhong, Donghai Zhu, Liuyang Fan, Tiliang Wen, Yong Kang   +5 more
wiley   +1 more source

Study on the fault ride through critical elements and coordinated control of DFIG's converters

The Journal of Engineering, 2019
The increasing of large-scale wind power integration capacity brings great challenges to the safe operation and management of power grid.
Bingjie Tang, Yongning Chi, Yongning Chi, Xinshou Tian, Yan Li   +4 more
doaj   +1 more source

Arbitrarily fast delayed signal cancellation PLL for grid‐integration of renewable energy sources

IET Renewable Power Generation, Volume 19, Issue 1, January/December 2025.
Figure 1 shows the block diagram of renewable energy sources powered grid‐connected converter. This figure highlights the importance of grid‐synchronization in integrating renewable energy sources into the grid. Abstract Integrating renewable energy sources into an unbalanced distribution network requires fast and accurate extraction of fundamental ...
Hafiz Ahmed, Rosane Ushirobira, Denis Efimov   +2 more
wiley   +1 more source

Fault Ride-Through Enhancement of Grid Supporting Inverter-Based Microgrid Using Delayed Signal Cancellation Algorithm Secondary Control

Energies, 2019
The growing level of grid-connected renewable energy sources in the form of microgrids has made it highly imperative for grid-connected microgrids to contribute to the overall system stability.
Elutunji Buraimoh, Innocent E. Davidson, Fernando Martinez-Rodrigo   +2 more
doaj   +1 more source

Minimising the impact of disturbances in future highly-distributed power systems [PDF]

, 2017
It is expected that future power systems will require radical distributed control approaches to accommodate the significant expansion of renewable energy sources and other flexible grid devices.
Belloni, F.R., Blair, S.M., Burt, G.M., Hänninen, S., Kedra, B., Kosmecki, M., Lof, A., Lüers, B., Merino, J., Pala, D., Temiz, A., Valov, M.   +11 more
core   +1 more source

DC‐link voltage stability enhancement in intermittent microgrids using coordinated reserve energy management strategy

IET Renewable Power Generation, Volume 19, Issue 1, January/December 2025.
This article presents a solar energy microgrid designed to address DC‐link voltage instability in both grid‐connected and standalone modes. A reserve energy management scheme utilizing batteries and supercapacitors is developed to regulate DC‐link voltage, minimizing stress on capacitors and enhancing system reliability.
Saqif Imtiaz, Lijun Yang, Hafiz Mudassir Munir, Zulfiqar Ali Memon, Heybet Kilic, Muhammad Naveed Naz   +5 more
wiley   +1 more source

A comprehensive FRT strategy based on individual arm capacitor voltage control for MMC in hybrid AC/DC distribution grids

International Journal of Electrical Power & Energy Systems
Due to the wide application of modular multilevel converters (MMCs) in hybrid AC/DC distribution grids, enhancing the fault ride-through (FRT) capability of MMC is essential to improve the reliability of the hybrid AC/DC distribution grids. In this paper,
Yu Chen, Zhen Wang, Minghao Wen, Xianggen Yin   +3 more
doaj   +1 more source

Neuro Fuzzy Logic Controlled Parallel Resonance Type Fault Current Limiter to Improve the Fault Ride Through Capability of DFIG Based Wind Farm

IEEE Access, 2020
Doubly fed induction generators (DFIGs) are vulnerable to grid related electrical faults. Standards require DFIGs to be disconnected from the grid unless augmented with a fault ride through (FRT) capability.
Md. Rashidul Islam, Jakir Hasan, Md. Rezaur Rahman Shipon, Mohammad Ashraf Hossain Sadi, Ahmed Abuhussein, Tushar Kanti Roy   +5 more
doaj   +1 more source

Comparative Impedance Characteristic Analysis of Grid‐Following and Grid‐Forming Inverters

IET Renewable Power Generation, Volume 19, Issue 1, January/December 2025.
This paper comprehensively analyses the impedance characteristics of grid‐following and grid‐forming inverters at around synchronous frequency areas considering various operating and grid connection conditions and control settings. Both analytical and from EMT‐simulation extracted impedances are obtained for ensuring model plausibility.
Yonggang Zhang, Peter Unruh, Boris Fischer, Martin Braun   +3 more
wiley   +1 more source