Results 41 to 50 of about 565 (124)

Globally Optimal Control of IBR for Grid Harmonic and Unbalanced Voltage Attenuation

IEEE Access
The simultaneous presence of harmonic and unbalanced voltages has become a major concern of power quality in power systems. Most existing research based on inverter-based resource (IBR) focuses on the separate control of harmonic or unbalanced voltages ...
Yukun Qiu, Heng Nian, Haiyong Chen, Zhen He, Yaozhong Zhang, Lei Yang   +5 more
doaj   +1 more source

A multi‐power quality problems management strategy based on VSCs and switches in AC/DC hybrid LVDN with large PVs

IET Renewable Power Generation, Volume 18, Issue 15, Page 2967-2977, 16 November 2024.
This paper proposes a dual‐layer control strategy to address voltage unbalances and voltage violations with multiple devices. First layer is pre‐day scheduling, which aims to minimize unbalance factors by optimizing the position of phase‐changing switches.
Yu Fu, Weichen Yang, Yue Li, Hao Bai, Yongxiang Cai, Wei Li   +5 more
wiley   +1 more source

Distributed Cooperative Secondary Voltage Control in an Unbalanced Microgrid

CSEE Journal of Power and Energy Systems
The negative-sequence reactive power-conductance (Q-G) droop control strategy is a conventional method to compensate for the output unbalanced voltages in an islanded MG.
Xiangzhen Yang, Haixi Zhao, Mengke Duan, Yan Du, Haining Wang, Jian Zhang   +5 more
doaj   +1 more source

Derating factor determination of the three‐phase induction motor under unbalanced voltage using pumping system

IET Electric Power Applications, Volume 18, Issue 10, Page 1305-1316, October 2024.
A novel method is presented for determining the derating factors of a three‐phase induction motor under the condition of the unbalanced supply voltages using a mechanical system. For this system, the stator current of IM would be greater than the rated current if there was an imbalance in the supply voltage.
Samar Hameed Majeed, Seyed Ghodratolah Seifossadat, Mohsen Saniei, Seyyed Sajjad Moosapour   +3 more
wiley   +1 more source

A data-driven framework for seasonal PV forecasting and coordinated EV charging to improve hosting capacity in unbalanced distribution grids

Energy Conversion and Management: X
The rapid growth of photovoltaic (PV) generation and electric vehicles (EVs) presents operational challenges for distribution networks, including voltage deviations, increased losses, phase unbalance, and transformer overloading.
T.H.M. Sumon Rashid, Md. Ajman Hossain, Humayun Kabir, Kawsar Ahmed Refat, Md. Naimul Islam, Robiul Khan, Md. Feroz Ali, A.H.M. Iftekharul Ferdous   +7 more
doaj   +1 more source

Improving the performance of grid‐connected inverters during asymmetrical faults and unbalanced grid voltages

IET Generation, Transmission &Distribution, Volume 18, Issue 19, Page 3097-3107, October 2024.
Short circuit faults and unbalanced grid voltage are severe transient events that inverters need to be able to pass through without disconnecting from the grid. This article proposes a voltage support control scheme to support grid voltage during asymmetrical voltage drop by utilizing an optimization problem.
Sepideh Shabani, Mehdi Gholipour, Mehdi Niroomand   +2 more
wiley   +1 more source

Impact of EV charging on electrical distribution network and mitigating solutions – A review

IET Smart Grid, Volume 7, Issue 5, Page 485-502, October 2024.
A comprehensive yet focused review of impact of EV charging on distribution networks is presented by delving into the main factors restricting EV hosting capacity and the strategies used to maximise EV hosting capacity by managing the aforementioned impacts.
Inam Nutkani, Hamish Toole, Nuwantha Fernando, Loh Poh Chiang Andrew   +3 more
wiley   +1 more source

Machine Learning-Based Online MPC for Large-Scale Charging Infrastructure Management

IEEE Access
The rapid expansion of Electric Vehicle (EV) charging capacities, driven by the surge in transportation electrification, has a direct impact on the electric power system, particularly the Low Voltage (LV) grid.
Lazher Mejdi, Faten Kardous, Khaled Grayaa   +2 more
doaj   +1 more source

Decomposition of unbalanced operation incremented active power loss in distribution network

IET Generation, Transmission &Distribution, Volume 18, Issue 8, Page 1517-1527, April 2024.
Here, a mathematical approach based on vector analysis in the symmetrical components space is introduced to specify the contribution of each unbalanced load to the network increased power losses due to the unbalanced operation regime. Having applied the proposed approach, the best candidate unbalanced load/location to perform the corrective balancing ...
Amin Dadashzade, Mohammad Hassan Amirioun, Farrokh Aminifar, Mahdi Davarpanah   +3 more
wiley   +1 more source

Three‐phase steady‐state models of distributed generators with different control strategies

IET Generation, Transmission &Distribution, Volume 18, Issue 4, Page 716-728, February 2024.
This paper proposes three‐phase steady‐state models for distributed generators with different negative control strategies. Abstract This paper proposes three‐phase steady‐state models for distributed generators (DGs) with different negative control strategies. An augmented rectangular load flow method is used for three‐phase distribution systems.
Qijia Yang, Zhengchun Du, Yu Zhang, Xiaotian Yuan   +3 more
wiley   +1 more source