Results 51 to 60 of about 27,610,539 (97)

A hybrid multilevel converter for medium and high voltage applications [PDF]

, 2010
This paper investigates the suitability of the hybrid multilevel converter for medium and high voltage application. The converter operation, modulation, and capacitor voltage balancing method are described in detail.
Ahmed, Khaled, Adam, Grain Philip, Finney, Stephen, Singh, N.K., Williams, Barry   +4 more
core   +3 more sources

Mode switching DFIG for low voltage ride through

, 2011
With the rapid development of world-wide wind energy generation using doubly fed induction generations (DFIGs), low voltage ride through (LVRT) has become a great concern.
Vilathgamuwa, D. Mahinda, Wei, Feng, Feng Wei, D. M. Vilathgamuwa   +3 more
core   +1 more source

An implementation of inertia control strategy for grid-connected solar system using moth-flame optimization algorithm

Automatika
As the solar power system power system grows rapidly, inertia control strategy (ICS) becomes crucial to enable stable grid integration. However, the existing ICS lacks of dynamic weather analysis with maximum power point tracking (MPPT) and fault-ride ...
N. Nandakumar, V. A. Tibbie Pon Symon
doaj   +1 more source

Measurement-Validated Power Quality Assessment and Static Synchronous Compensator–Based Mitigation of a Grid-Connected Wind Farm

Electrica
This paper presents a measurement-validated power quality assessment of a grid-connected wind farm in Jordan based on synchronized field measurements and validated simulation studies.
Malik K. Alkasasbeh, Baharuddin Ismail, Chanuri Charin, Suad S. Al Mattar, Abd Alazeez Almaleeh   +4 more
doaj   +1 more source

Low and High Voltage Ride-Through DFIG Wind Turbines Using Hybrid Current Controlled Converters

, 2011
Doubly fed induction generators have been recognized as the dominant technology used in wind generation systems. However, this type of wind generator is very sensitive to the drop/rise in the supply voltage and without efficient “ride-through” strategy ...
Mansour Mohseni, Masoum, Mohammad Sherkat, Syed M. Islam, Mohammad A.S. Masoum, Mohseni, Mansour, Islam, Syed   +5 more
core   +2 more sources

A novel FRT strategy for transformerless MMC to improve current differential protection performance under single-phase grounding faults

International Journal of Electrical Power & Energy Systems
AC/DC distribution networks are interconnected by converters such as modular multilevel converters (MMCs). In AC/DC distribution networks, single-phase grounding (SPG) faults can cause enormous challenges in relay protection.
Yuze Li, Peng Guo, Qianming Xu, Josep M. Guerrero   +3 more
doaj   +1 more source

Dynamic aggregation method for wind farms for overvoltage protection and accuracy stability enhancement

International Journal of Electrical Power & Energy Systems
Existing equivalent methods for permanent-magnet synchronous generator (PMSG) wind farms struggle to precisely simulate dynamic characteristics during overvoltage faults and protection triggering, thereby limiting their applicability in transient ...
Zongzheng Wang, Chenlei Liu, Wei Wang, Tong Zhao, Yifan Liu, Zhijuan Wang, Ying Sun, Xiaolong Wang   +7 more
doaj   +1 more source

Control of Brushless Doubly-Fed Reluctance Machines under Normal and Faulty Operating Conditions [PDF]

The brushless doubly fed reluctance machine (BDFRM) is an attractive alternative technology to traditional slip-ring doubly fed induction machine (DFIM) for slip-power recovery applications with limited variable speed ranges such as wind turbines or pump-
Hasan, Mohammed
core  

Advanced control of series voltage compensation to enhance wind turbine ride through

, 2011
Due to increasing wind power penetration into utility grids, system operators have instituted stringent standards for ride-through compliance of grid-connected wind turbines.
Trong Duy Nguyen, Zhang, S., Tseng, King-Jet, Yao, D., Choi, San Shing, Dai Lin Yao, Tseng, King Jet, Shao Zhang, Zhang, Shao, Tseng, K., Yao, Dai Lin, Nguyen, T., Nguyen, Trong Duy, San Shing Choi, King-Jet Tseng   +14 more
core   +1 more source

Investigation of condition monitoring system for grid connected photovoltaic (GCPV) system with power electronics converters using machine learning techniques

e-Prime: Advances in Electrical Engineering, Electronics and Energy
Power systems protection has become more vital in recent years to ensure stability, reliability, security, and power quality due to the exponential growth of grid-connected photovoltaic (GCPV) systems. As a result, several nations have set new grid codes
Izhar Ahmad Saifi, Mohammad Amir, Ahteshamul Haque, Atif Iqbal   +3 more
doaj   +1 more source