Results 171 to 180 of about 74,380 (202)

A noble control scheme for grid connected PV system under unbalanced grid condition

2017 National Power Electronics Conference (NPEC), 2017
In this paper, a noble control scheme of grid connected PV system is presented for injecting balanced current into a unbalanced grid. Current and voltage control scheme is implemented in synchronously rotating reference frame whereas the feed forward term is added in three phase stationary reference frame. The proposed scheme is extensively studied and
Amal C Sunny, A. Sarkar, A. Chakrabarti, B Das, P. R. Kasari, Aby Joseph   +5 more
openaire   +1 more source

An improved voltage support strategy of grid-connected inverter under unbalanced grid condition

2017 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific), 2017
In order to ensure three-phase grid-connected inverter output voltage symmetry under unbalanced grid voltage, an improved control strategy is proposed in this paper. The proposed control strategy includes power, voltage and current three loops. The complex coefficient-filter (CCF) is used to obtain the positive and negative sequence of unbalance output
Wang Wei, Li Pengfei, Li Fen, Liu Guihua
openaire   +1 more source

Modeling and control of a grid-connected BDFM under unbalanced grid voltage conditions

2011 IEEE International Electric Machines & Drives Conference (IEMDC), 2011
info:eu-repo/semantics ...
Sotoodeh, Pedram, Seyedmahdi, Izadkhast, Khosravi, Hamed, Oraee, Hashem   +3 more
openaire   +2 more sources

Inner Current Controls of Grid-Connected PV for Unbalanced Grid Conditions

2021 North American Power Symposium (NAPS), 2021
Abdulhakim Alsaif, Zhixin Miao, Lingling Fan   +2 more
openaire   +1 more source

Advanced Control of Grid-Connected Current Source Converter Under Unbalanced Grid Voltage Conditions

IEEE Transactions on Industrial Electronics, 2018
There are technical challenges when the grid-connected current source converter operates under unbalanced grid voltage conditions. The negative sequence component of the unbalanced grid voltage would result in the low-frequency ripple at dc side, as well as current harmonics at ac side. It has an adverse impact on the system operation.
Xiaoqiang Guo, Yong Yang, Xue Zhang
openaire   +1 more source

Cluster-Based Decoupled Voltage Sensitivity Analysis Under Unbalanced Grid Condition

2019 International Conference on Clean Electrical Power (ICCEP), 2019
the modernization of the power grids towards smart grid is currently on the way. To cope with energy transition, decentralization of traditional active grid operation and control to distribution grids is required, as distributed generation (DG) units are present.
S. Leksawat, E. Ortjohann, T. Premgamone, D. Holtschulte, A. Schmelter, J. Kortenbruck, S. Varada, D. Morton   +7 more
openaire   +1 more source

Flexible Control Schemes for Grid-Tied Inverters Under Unbalanced Grid Voltage Conditions

2019
This paper investigates flexible control schemes for a three-phase grid-connected inverter, especially under unbalanced grid voltage conditions. PWM controlled three-phase voltage source inverters (VSIs) are widely used in renewable energy-based power generation systems for performing various advanced energy management and power flow control functions,
openaire   +1 more source

Online Grid Impedance Estimation-Based Adaptive Control of Virtual Synchronous Generators Considering Strong and Weak Grid Conditions

IEEE Transactions on Sustainable Energy, 2023
Nabil Mohammed, Mohammad Hasan Ravanji, Weihua Zhou   +2 more
exaly  

Grid Forming Control of THSSC Under Unbalanced Grid Condition

2024 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)
Ajay Singh Negi, Ibhan Chand Rath, Siba Kumar Patro   +2 more
openaire   +1 more source

Grid-Forming IBRs Under Unbalanced Grid Conditions: Challenges, Solutions, and Prospects

IEEE Transactions on Sustainable Energy
Xinquan Chen, Siqi Bu, Ilhan Kocar
openaire   +2 more sources