Results 211 to 220 of about 965,234 (263)

Induction Motor Starting in Islanded Microgrids

IEEE Transactions on Smart Grid, 2013
Motor loads require high amount of reactive power for a short period during their startup. The high reactive power drawn from the system causes voltage dips at startup time and potentially overvoltage after motor startup is over. The voltage dip and overvoltage may cause the relays to trip and the system to go unstable.
Milad Falahi, Karen L. Butler-Purry, Mehrdad Ehsani   +2 more
openaire   +2 more sources

Reliable Islanded Microgrid Operation Using Dynamic Optimal Power Management

IEEE transactions on industry applications, 2021
The tradeoff between the operating cost and the reliability of microgrids imposes challenges of having cost-effective power dispatch and reliable operations.
Salman Harasis, Y. Sozer, M. Elbuluk
semanticscholar   +1 more source

Cooperative Scheduling of An Isolated Island Microgrid

2018 5th IEEE International Conference on Cloud Computing and Intelligence Systems (CCIS), 2018
With the increasing cost of fossil fuels, the use of renewable sources of power generation has become an inevitable reality. However, the utilization rate of photovoltaic power generation is very low, and most of the energy is wasted. In this paper, a scheduling method is proposed to maximize the use of solar energy. The upper layer can adjust the load
Chunxia Dou, Jiangsong Yao, Tengfei Zhang 0001   +2 more
openaire   +1 more source

Transient Synchronization Stability of an Islanded AC Microgrid Considering Interactions Between Grid-Forming and Grid-Following Converters

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2023
Microgrid has been rapidly developed for the integration of distributed renewable energy, owing to their superiority of flexible operation and high reliability.
Zhen Tian, Xilin Li, X. Zha, Yingjie Tang, P. Sun, Meng Huang, Pan Yu   +6 more
semanticscholar   +1 more source

Forecast-based Optimization of Islanded Microgrids

2018 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), 2018
In the context of the energy transition, the operational management of microgrids becomes an issue of increasing importance. In this paper, we compare two optimization models for planning generators and storage units in an islanded microgrid, while dealing with uncertainty in load- and PV-forecasts.
Roel J. J. Brouwer, J. Marjan van den Akker, F. P. M. Dignum, Wouter Vermeiden   +3 more
openaire   +2 more sources

A Quasi-Harmonic Voltage Feedforward Control for Improving Power Quality in VSG-Based Islanded Microgrid

IEEE Journal of Emerging and Selected Topics in Power Electronics
The voltage harmonics caused by nonlinear load seriously affect the safe and stable operation of the islanded microgrid based on a virtual synchronous generator (VSG).
Gaoxiang Li, Wenhao Song, Xiao Liu
semanticscholar   +1 more source

Differentiation Method Based Approximation of Higher Order Islanded Microgrid System

2024 IEEE 4th International Conference on Sustainable Energy and Future Electric Transportation (SEFET)
The interconnections of different sub-systems in microgrid frequently leads to determination of complex higher order systems (HOSs). In this paper, order reduction of higher-order islanded microgrid system is performed.
Student Member Ieee Richa Chaudhary, S. M. I. V. P. Singh, Senior Member Ieee Akhilesh Mathur, Umesh Kumar Yadav, S. M. I. A. V. Waghmare, Member Ieee Krishna Murari   +5 more
semanticscholar   +1 more source

Enhancing Flexibility of an Islanded Microgrid With Electric Springs

IEEE Transactions on Smart Grid, 2019
An electric spring (ES) is effective in enhancing the operational flexibility and facilitating renewable energy integration. An ES can determine the operation status of the connected noncritical loads (NCLs) by adjusting its output voltage. It is possible to use NCLs as operation resources for renewable integration.
Liang Liang 0004, Yunhe Hou, David J. Hill 0001   +2 more
openaire   +4 more sources

A Self-Adjusting Droop Control Strategy to Improve Reactive Power Sharing in Islanded Microgrid

IEEE Transactions on Sustainable Energy, 2020
In this paper, a self-adjusting nominal voltage based modification in the $Q-V$ droop control has been proposed to improve the reactive power sharing amongst distributed generation sources in an islanded microgrid.
D. Dheer, Yusuf Gupta, S. Doolla
semanticscholar   +1 more source

Optimal Design of an Islanded Microgrid With Load Shifting Mechanism Between Electrical and Thermal Energy Storage Systems

IEEE Transactions on Power Systems, 2020
This paper investigates an optimal sizing strategy for an islanded building microgrid. The microgrid composites a rooftop Photovoltaic (PV) system, a Battery Energy Storage System (BESS), an ice-Thermal Energy Storage System (ice-TESS), and loads.
B. Mohandes, Samrat Acharya, M. E. El Moursi, A. Al‐Sumaiti, H. Doukas, S. Sgouridis   +5 more
semanticscholar   +1 more source